[BAEL-10840] - Create a libraries-apache-commons module

This commit is contained in:
amit2103
2018-12-08 15:29:38 +05:30
parent 5072291b32
commit d737e15c6b
88 changed files with 161 additions and 90 deletions
@@ -1,159 +0,0 @@
package com.baeldung.circularfifoqueue;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.collections4.queue.CircularFifoQueue;
import org.junit.Assert;
import org.junit.Test;
public class CircularFifoQueueUnitTest {
private static final int DEFAULT_SIZE = 32;
private static final int FIXED_SIZE = 5;
private static final int COLLECTION_SIZE = 7;
private static final String TEST_COLOR = "Red";
private static final String TEST_COLOR_BY_INDEX = "Blue";
@Test
public void whenUsingDefualtConstructor_correctSizeQueue() {
CircularFifoQueue<String> bits = new CircularFifoQueue<>();
Assert.assertEquals(DEFAULT_SIZE, bits.maxSize());
}
@Test
public void givenAddElements_whenUsingIntConstructor_correctSizeQueue() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
Assert.assertEquals(FIXED_SIZE, colors.maxSize());
}
@Test
public void whenUsingCollectionConstructor_correctSizeQueue() {
List<String> days = new ArrayList<>();
days.add("Monday");
days.add("Tuesday");
days.add("Wednesday");
days.add("Thursday");
days.add("Friday");
days.add("Saturday");
days.add("Sunday");
CircularFifoQueue<String> daysOfWeek = new CircularFifoQueue<>(days);
Assert.assertEquals(COLLECTION_SIZE, daysOfWeek.maxSize());
}
@Test
public void givenAddElements_whenGetElement_correctElement() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
Assert.assertEquals(TEST_COLOR_BY_INDEX, colors.get(1));
}
@Test
public void givenAddElements_whenPollElement_correctElement() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
Assert.assertEquals(TEST_COLOR, colors.poll());
}
@Test
public void givenAddElements_whenPeekQueue_correctElement() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
Assert.assertEquals(TEST_COLOR, colors.peek());
}
@Test
public void givenAddElements_whenElementQueue_correctElement() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
Assert.assertEquals(TEST_COLOR, colors.element());
}
@Test
public void givenAddElements_whenRemoveElement_correctElement() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
Assert.assertEquals(TEST_COLOR, colors.remove());
}
@Test
public void givenFullQueue_whenClearQueue_getIsEmpty() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
colors.clear();
Assert.assertEquals(true, colors.isEmpty());
}
@Test
public void givenFullQueue_whenCheckFull_getIsFull() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
Assert.assertEquals(false, colors.isFull());
}
@Test
public void givenFullQueue_whenAddMoreElements_getIsAtFullCapacity() {
CircularFifoQueue<String> colors = new CircularFifoQueue<>(5);
colors.add("Red");
colors.add("Blue");
colors.add("Green");
colors.offer("White");
colors.offer("Black");
colors.add("Orange");
colors.add("Violet");
colors.add("Pink");
Assert.assertEquals(true, colors.isAtFullCapacity());
}
}
@@ -1,51 +0,0 @@
package com.baeldung.commons.beanutils;
import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
public class CourseServiceUnitTest {
@Test
public void givenCourse_whenSetValuesUsingPropertyUtil_thenReturnSetValues() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
Course course = new Course();
String name = "Computer Science";
List<String> codes = Arrays.asList("CS", "CS01");
CourseService.setValues(course, name, codes);
Assert.assertEquals(name, course.getName());
Assert.assertEquals(2, course.getCodes().size());
Assert.assertEquals("CS", course.getCodes().get(0));
CourseService.setIndexedValue(course, 1, "CS02");
Assert.assertEquals("CS02", course.getCodes().get(1));
Student student = new Student();
String studentName = "Joe";
student.setName(studentName);
CourseService.setMappedValue(course, "ST-1", student);
Assert.assertEquals(student, course.getEnrolledStudent("ST-1"));
String accessedStudentName = CourseService.getNestedValue(course, "ST-1", "name");
Assert.assertEquals(studentName, accessedStudentName);
}
@Test
public void givenCopyProperties_whenCopyCourseToCourseEntity_thenCopyPropertyWithSameName() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
Course course = new Course();
course.setName("Computer Science");
course.setCodes(Arrays.asList("CS"));
course.setEnrolledStudent("ST-1", new Student());
CourseEntity courseEntity = new CourseEntity();
CourseService.copyProperties(course, courseEntity);
Assert.assertEquals(course.getName(), courseEntity.getName());
Assert.assertEquals(course.getCodes(), courseEntity.getCodes());
Assert.assertNull(courseEntity.getStudent("ST-1"));
}
}
@@ -1,37 +0,0 @@
package com.baeldung.commons.chain;
import org.apache.commons.chain.Catalog;
import org.apache.commons.chain.Command;
import org.apache.commons.chain.Context;
import org.junit.Assert;
import org.junit.Test;
import static com.baeldung.commons.chain.AtmConstants.*;
public class AtmChainUnitTest {
public static final int EXPECTED_TOTAL_AMOUNT_TO_BE_WITHDRAWN = 460;
public static final int EXPECTED_AMOUNT_LEFT_TO_BE_WITHDRAWN = 0;
public static final int EXPECTED_NO_OF_HUNDREDS_DISPENSED = 4;
public static final int EXPECTED_NO_OF_FIFTIES_DISPENSED = 1;
public static final int EXPECTED_NO_OF_TENS_DISPENSED = 1;
@Test
public void givenInputsToContext_whenAppliedChain_thenExpectedContext() {
Context context = new AtmRequestContext();
context.put(TOTAL_AMOUNT_TO_BE_WITHDRAWN, 460);
context.put(AMOUNT_LEFT_TO_BE_WITHDRAWN, 460);
Catalog catalog = new AtmCatalog();
Command atmWithdrawalChain = catalog.getCommand(ATM_WITHDRAWAL_CHAIN);
try {
atmWithdrawalChain.execute(context);
} catch (Exception e) {
e.printStackTrace();
}
Assert.assertEquals(EXPECTED_TOTAL_AMOUNT_TO_BE_WITHDRAWN, (int) context.get(TOTAL_AMOUNT_TO_BE_WITHDRAWN));
Assert.assertEquals(EXPECTED_AMOUNT_LEFT_TO_BE_WITHDRAWN, (int) context.get(AMOUNT_LEFT_TO_BE_WITHDRAWN));
Assert.assertEquals(EXPECTED_NO_OF_HUNDREDS_DISPENSED, (int) context.get(NO_OF_HUNDREDS_DISPENSED));
Assert.assertEquals(EXPECTED_NO_OF_FIFTIES_DISPENSED, (int) context.get(NO_OF_FIFTIES_DISPENSED));
Assert.assertEquals(EXPECTED_NO_OF_TENS_DISPENSED, (int) context.get(NO_OF_TENS_DISPENSED));
}
}
@@ -1,54 +0,0 @@
package com.baeldung.commons.collections;
import org.apache.commons.collections4.BidiMap;
import org.apache.commons.collections4.bidimap.DualHashBidiMap;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class BidiMapUnitTest {
@Test
public void givenKeyValue_whenPut_thenAddEntryToMap() {
BidiMap<String, String> map = new DualHashBidiMap<>();
map.put("key1", "value1");
map.put("key2", "value2");
assertEquals(map.size(), 2);
}
@Test
public void whenInverseBidiMap_thenInverseKeyValue() {
BidiMap<String, String> map = new DualHashBidiMap<>();
map.put("key1", "value1");
map.put("key2", "value2");
BidiMap<String, String> rMap = map.inverseBidiMap();
assertTrue(rMap.containsKey("value1") && rMap.containsKey("value2"));
}
@Test
public void givenValue_whenRemoveValue_thenRemoveMatchingMapEntry() {
BidiMap<String, String> map = new DualHashBidiMap<>();
map.put("key1", "value1");
map.put("key2", "value2");
map.removeValue("value2");
assertFalse(map.containsKey("key2"));
}
@Test
public void givenValue_whenGetKey_thenMappedKey() {
BidiMap<String, String> map = new DualHashBidiMap<>();
map.put("key1", "value1");
assertEquals(map.getKey("value1"), "key1");
}
@Test
public void givenKeyValue_whenAddValue_thenReplaceFirstKey() {
BidiMap<String, String> map = new DualHashBidiMap<>();
map.put("key1", "value1");
map.put("key2", "value1");
assertEquals(map.size(), 1);
assertFalse(map.containsKey("key1"));
}
}
@@ -1,120 +0,0 @@
package com.baeldung.commons.collections;
import com.baeldung.commons.collectionutil.Address;
import com.baeldung.commons.collectionutil.Customer;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.collections4.Predicate;
import org.apache.commons.collections4.Transformer;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class CollectionUtilsGuideUnitTest {
Customer customer1 = new Customer(1, "Daniel", 123456l, "locality1", "city1", "1234");
Customer customer4 = new Customer(4, "Bob", 456789l, "locality4", "city4", "4567");
List<Customer> list1, list2, list3, linkedList1;
@Before
public void setup() {
Customer customer2 = new Customer(2, "Fredrik", 234567l, "locality2", "city2", "2345");
Customer customer3 = new Customer(3, "Kyle", 345678l, "locality3", "city3", "3456");
Customer customer5 = new Customer(5, "Cat", 567890l, "locality5", "city5", "5678");
Customer customer6 = new Customer(6, "John", 678901l, "locality6", "city6", "6789");
list1 = Arrays.asList(customer1, customer2, customer3);
list2 = Arrays.asList(customer4, customer5, customer6);
list3 = Arrays.asList(customer1, customer2);
linkedList1 = new LinkedList<>(list1);
}
@Test
public void givenList_whenAddIgnoreNull_thenNoNullAdded() {
CollectionUtils.addIgnoreNull(list1, null);
assertFalse(list1.contains(null));
}
@Test
public void givenTwoSortedLists_whenCollated_thenSorted() {
List<Customer> sortedList = CollectionUtils.collate(list1, list2);
assertEquals(6, sortedList.size());
assertTrue(sortedList.get(0).getName().equals("Bob"));
assertTrue(sortedList.get(2).getName().equals("Daniel"));
}
@Test
public void givenListOfCustomers_whenTransformed_thenListOfAddress() {
Collection<Address> addressCol = CollectionUtils.collect(list1, new Transformer<Customer, Address>() {
public Address transform(Customer customer) {
return new Address(customer.getLocality(), customer.getCity(), customer.getZip());
}
});
List<Address> addressList = new ArrayList<>(addressCol);
assertTrue(addressList.size() == 3);
assertTrue(addressList.get(0).getLocality().equals("locality1"));
}
@Test
public void givenCustomerList_whenFiltered_thenCorrectSize() {
boolean isModified = CollectionUtils.filter(linkedList1, new Predicate<Customer>() {
public boolean evaluate(Customer customer) {
return Arrays.asList("Daniel", "Kyle").contains(customer.getName());
}
});
// filterInverse does the opposite. It removes the element from the list if the Predicate returns true
// select and selectRejected work the same way except that they do not remove elements from the given collection and return a new collection
assertTrue(isModified && linkedList1.size() == 2);
}
@Test
public void givenNonEmptyList_whenCheckedIsNotEmpty_thenTrue() {
List<Customer> emptyList = new ArrayList<>();
List<Customer> nullList = null;
// Very handy at times where we want to check if a collection is not null and not empty too.
// isNotEmpty does the opposite. Handy because using ! operator on isEmpty makes it missable while reading
assertTrue(CollectionUtils.isNotEmpty(list1));
assertTrue(CollectionUtils.isEmpty(nullList));
assertTrue(CollectionUtils.isEmpty(emptyList));
}
@Test
public void givenCustomerListAndASubcollection_whenChecked_thenTrue() {
assertTrue(CollectionUtils.isSubCollection(list3, list1));
}
@Test
public void givenTwoLists_whenIntersected_thenCheckSize() {
Collection<Customer> intersection = CollectionUtils.intersection(list1, list3);
assertTrue(intersection.size() == 2);
}
@Test
public void givenTwoLists_whenSubtracted_thenCheckElementNotPresentInA() {
Collection<Customer> result = CollectionUtils.subtract(list1, list3);
assertFalse(result.contains(customer1));
}
@Test
public void givenTwoLists_whenUnioned_thenCheckElementPresentInResult() {
Collection<Customer> union = CollectionUtils.union(list1, list2);
assertTrue(union.contains(customer1));
assertTrue(union.contains(customer4));
}
}
@@ -1,108 +0,0 @@
package com.baeldung.commons.collections;
import org.apache.commons.collections4.MapUtils;
import org.apache.commons.collections4.PredicateUtils;
import org.apache.commons.collections4.TransformerUtils;
import org.assertj.core.api.Assertions;
import org.junit.Before;
import org.junit.Test;
import java.util.HashMap;
import java.util.Map;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.collection.IsMapContaining.hasEntry;
import static org.hamcrest.collection.IsMapWithSize.aMapWithSize;
import static org.hamcrest.collection.IsMapWithSize.anEmptyMap;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
public class MapUtilsUnitTest {
private String[][] color2DArray = new String[][] { { "RED", "#FF0000" }, { "GREEN", "#00FF00" }, { "BLUE", "#0000FF" } };
private String[] color1DArray = new String[] { "RED", "#FF0000", "GREEN", "#00FF00", "BLUE", "#0000FF" };
private Map<String, String> colorMap;
@Before
public void createMap() {
this.colorMap = MapUtils.putAll(new HashMap<String, String>(), this.color2DArray);
}
@Test
public void whenCreateMapFrom2DArray_theMapIsCreated() {
this.colorMap = MapUtils.putAll(new HashMap<String, String>(), this.color2DArray);
assertThat(this.colorMap, is(aMapWithSize(this.color2DArray.length)));
assertThat(this.colorMap, hasEntry("RED", "#FF0000"));
assertThat(this.colorMap, hasEntry("GREEN", "#00FF00"));
assertThat(this.colorMap, hasEntry("BLUE", "#0000FF"));
}
@Test
public void whenCreateMapFrom1DArray_theMapIsCreated() {
this.colorMap = MapUtils.putAll(new HashMap<String, String>(), this.color1DArray);
assertThat(this.colorMap, is(aMapWithSize(this.color1DArray.length / 2)));
assertThat(this.colorMap, hasEntry("RED", "#FF0000"));
assertThat(this.colorMap, hasEntry("GREEN", "#00FF00"));
assertThat(this.colorMap, hasEntry("BLUE", "#0000FF"));
}
@Test
public void whenVerbosePrintMap_thenMustPrintFormattedMap() {
MapUtils.verbosePrint(System.out, "Optional Label", this.colorMap);
}
@Test
public void whenGetKeyNotPresent_thenMustReturnDefaultValue() {
String defaultColorStr = "COLOR_NOT_FOUND";
String color = MapUtils.getString(this.colorMap, "BLACK", defaultColorStr);
assertEquals(color, defaultColorStr);
}
@Test
public void whenGetOnNullMap_thenMustReturnDefaultValue() {
String defaultColorStr = "COLOR_NOT_FOUND";
String color = MapUtils.getString(null, "RED", defaultColorStr);
assertEquals(color, defaultColorStr);
}
@Test
public void whenInvertMap_thenMustReturnInvertedMap() {
Map<String, String> invColorMap = MapUtils.invertMap(this.colorMap);
int size = invColorMap.size();
Assertions.assertThat(invColorMap).hasSameSizeAs(colorMap).containsKeys(this.colorMap.values().toArray(new String[size])).containsValues(this.colorMap.keySet().toArray(new String[size]));
}
@Test(expected = IllegalArgumentException.class)
public void whenCreateFixedSizedMapAndAdd_thenMustThrowException() {
Map<String, String> rgbMap = MapUtils.fixedSizeMap(MapUtils.putAll(new HashMap<String, String>(), this.color1DArray));
rgbMap.put("ORANGE", "#FFA500");
}
@Test(expected = IllegalArgumentException.class)
public void whenAddDuplicateToUniqueValuesPredicateMap_thenMustThrowException() {
Map<String, String> uniqValuesMap = MapUtils.predicatedMap(this.colorMap, null, PredicateUtils.uniquePredicate());
uniqValuesMap.put("NEW_RED", "#FF0000");
}
@Test
public void whenCreateLazyMap_theMapIsCreated() {
Map<Integer, String> intStrMap = MapUtils.lazyMap(new HashMap<Integer, String>(), TransformerUtils.stringValueTransformer());
assertThat(intStrMap, is(anEmptyMap()));
intStrMap.get(1);
intStrMap.get(2);
intStrMap.get(3);
assertThat(intStrMap, is(aMapWithSize(3)));
}
}
@@ -1,79 +0,0 @@
package com.baeldung.commons.collections;
import org.apache.commons.collections4.SetUtils;
import org.apache.commons.collections4.set.TransformedSet;
import org.junit.Test;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class SetUtilsUnitTest {
@Test(expected = IllegalArgumentException.class)
public void givenSetAndPredicate_whenPredicatedSet_thenValidateSet_and_throw_IllegalArgumentException() {
Set<String> sourceSet = new HashSet<>();
sourceSet.addAll(Arrays.asList("London", "Lagos", "Err Source1"));
Set<String> validatingSet = SetUtils.predicatedSet(sourceSet, (s) -> s.startsWith("L"));
validatingSet.add("Err Source2");
}
@Test
public void givenTwoSets_whenDifference_thenSetView() {
Set<Integer> a = new HashSet<>(Arrays.asList(1, 2, 5));
Set<Integer> b = new HashSet<>(Arrays.asList(1, 2));
SetUtils.SetView<Integer> result = SetUtils.difference(a, b);
assertTrue(result.size() == 1 && result.contains(5));
}
@Test
public void givenTwoSets_whenUnion_thenUnionResult() {
Set<Integer> a = new HashSet<>(Arrays.asList(1, 2, 5));
Set<Integer> b = new HashSet<>(Arrays.asList(1, 2));
Set<Integer> expected = new HashSet<>(Arrays.asList(1, 2, 5));
SetUtils.SetView<Integer> union = SetUtils.union(a, b);
assertTrue(SetUtils.isEqualSet(expected, union));
}
@Test
public void givenTwoSets_whenIntersection_thenIntersectionResult() {
Set<Integer> a = new HashSet<>(Arrays.asList(1, 2, 5));
Set<Integer> b = new HashSet<>(Arrays.asList(1, 2));
Set<Integer> expected = new HashSet<>(Arrays.asList(1, 2));
SetUtils.SetView<Integer> intersect = SetUtils.intersection(a, b);
assertTrue(SetUtils.isEqualSet(expected, intersect));
}
@Test
public void givenSet_whenTransformedSet_thenTransformedResult() {
Set<Integer> a = SetUtils.transformedSet(new HashSet<>(), (e) -> e * 2);
a.add(2);
assertEquals(a.toArray()[0], 4);
Set<Integer> source = new HashSet<>(Arrays.asList(1));
Set<Integer> newSet = TransformedSet.transformedSet(source, (e) -> e * 2);
assertEquals(newSet.toArray()[0], 2);
assertEquals(source.toArray()[0], 2);
}
@Test
public void givenTwoSet_whenDisjunction_thenDisjunctionSet() {
Set<Integer> a = new HashSet<>(Arrays.asList(1, 2, 5));
Set<Integer> b = new HashSet<>(Arrays.asList(1, 2, 3));
SetUtils.SetView<Integer> result = SetUtils.disjunction(a, b);
assertTrue(result.toSet().contains(5) && result.toSet().contains(3));
}
@Test
public void givenSet_when_OrderedSet_thenMaintainElementOrder() {
Set<Integer> set = new HashSet<>(Arrays.asList(10, 1, 5));
System.out.println("unordered set: " + set);
Set<Integer> orderedSet = SetUtils.orderedSet(new HashSet<>());
orderedSet.addAll(Arrays.asList(10, 1, 5));
System.out.println("ordered set = " + orderedSet);
}
}
@@ -1,211 +0,0 @@
package com.baeldung.commons.collections.orderedmap;
import org.apache.commons.collections4.OrderedMap;
import org.apache.commons.collections4.OrderedMapIterator;
import org.apache.commons.collections4.map.LinkedMap;
import org.apache.commons.collections4.map.ListOrderedMap;
import org.junit.Before;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
import static org.junit.Assert.assertEquals;
public class OrderedMapUnitTest {
private String[] names = { "Emily", "Mathew", "Rose", "John", "Anna" };
private Integer[] ages = { 37, 28, 40, 36, 21 };
private int RUNNERS_COUNT = names.length;
private OrderedMap<String, Integer> runnersLinkedMap;
private OrderedMap<String, Integer> runnersListOrderedMap;
@Before
public void createRunners() {
// First implementation: ListOrderedMap
this.runnersListOrderedMap = new ListOrderedMap<>();
this.loadOrderedMapOfRunners(this.runnersListOrderedMap);
// Second implementation: LinkedMap
this.runnersLinkedMap = new LinkedMap<>();
this.loadOrderedMapOfRunners(this.runnersLinkedMap);
}
private void loadOrderedMapOfRunners(OrderedMap<String, Integer> runners) {
for (int i = 0; i < RUNNERS_COUNT; i++) {
runners.put(this.names[i], this.ages[i]);
}
}
@Test
public void givenALinkedMap_whenIteratedWithMapIterator_thenPreservesOrder() {
// Tests that the order in map iterator is the same
// as defined in the constant arrays of names and ages:
OrderedMapIterator<String, Integer> runnersIterator = this.runnersLinkedMap.mapIterator();
int i = 0;
while (runnersIterator.hasNext()) {
runnersIterator.next();
assertEquals(runnersIterator.getKey(), this.names[i]);
assertEquals(runnersIterator.getValue(), this.ages[i]);
i++;
}
}
@Test
public void givenAListOrderedMap_whenIteratedWithMapIterator_thenPreservesOrder() {
// Tests that the order in map iterator is the same
// as defined in the constant arrays of names and ages:
OrderedMapIterator<String, Integer> runnersIterator = this.runnersListOrderedMap.mapIterator();
int i = 0;
while (runnersIterator.hasNext()) {
runnersIterator.next();
assertEquals(runnersIterator.getKey(), this.names[i]);
assertEquals(runnersIterator.getValue(), this.ages[i]);
i++;
}
}
@Test
public void givenALinkedMap_whenIteratedForwards_thenPreservesOrder() {
// Tests that the order in the forward iteration is the same
// as defined in the constant arrays of names and ages
String name = this.runnersLinkedMap.firstKey();
int i = 0;
while (name != null) {
assertEquals(name, this.names[i]);
name = this.runnersLinkedMap.nextKey(name);
i++;
}
}
@Test
public void givenAListOrderedMap_whenIteratedForwards_thenPreservesOrder() {
// Tests that the order in the forward iteration is the same
// as defined in the constant arrays of names and ages
String name = this.runnersListOrderedMap.firstKey();
int i = 0;
while (name != null) {
assertEquals(name, this.names[i]);
name = this.runnersListOrderedMap.nextKey(name);
i++;
}
}
@Test
public void givenALinkedMap_whenIteratedBackwards_thenPreservesOrder() {
// Tests that the order in the backwards iteration is the same
// as defined in the constant arrays of names and ages
String name = this.runnersLinkedMap.lastKey();
int i = RUNNERS_COUNT - 1;
while (name != null) {
assertEquals(name, this.names[i]);
name = this.runnersLinkedMap.previousKey(name);
i--;
}
}
@Test
public void givenAListOrderedMap_whenIteratedBackwards_thenPreservesOrder() {
// Tests that the order in the backwards iteration is the same
// as defined in the constant arrays of names and ages
String name = this.runnersListOrderedMap.lastKey();
int i = RUNNERS_COUNT - 1;
while (name != null) {
assertEquals(name, this.names[i]);
name = this.runnersListOrderedMap.previousKey(name);
i--;
}
}
@Test
public void givenALinkedMap_whenObjectIsSearched_thenMatchesConstantArray() {
assertEquals(ages[4], this.runnersLinkedMap.get("Anna"));
}
@Test
public void givenALinkedMap_whenConvertedToList_thenMatchesKeySet() {
// Casting the OrderedMap to a LinkedMap we can use asList() method
LinkedMap<String, Integer> lmap = (LinkedMap<String, Integer>) this.runnersLinkedMap;
List<String> listKeys = new ArrayList<>();
listKeys.addAll(this.runnersLinkedMap.keySet());
List<String> linkedMap = lmap.asList();
assertEquals(listKeys, linkedMap);
}
@Test
public void givenALinkedMap_whenSearchByIndexIsUsed_thenMatchesConstantArray() {
LinkedMap<String, Integer> lmap = (LinkedMap<String, Integer>) this.runnersLinkedMap;
for (int i = 0; i < RUNNERS_COUNT; i++) {
// accessed by index:
String name = lmap.get(i);
assertEquals(name, this.names[i]);
// index of key concides with position in array
assertEquals(lmap.indexOf(this.names[i]), i);
}
}
@Test
public void givenALinkedMap_whenElementRemoved_thenSizeDecrease() {
LinkedMap<String, Integer> lmap = (LinkedMap<String, Integer>) this.runnersLinkedMap;
Integer johnAge = lmap.remove("John");// by object
assertEquals(johnAge, new Integer(36));
assertEquals(lmap.size(), RUNNERS_COUNT - 1);
Integer emilyAge = lmap.remove(0);// by index
assertEquals(emilyAge, new Integer(37));
assertEquals(lmap.size(), RUNNERS_COUNT - 2);
}
@Test
public void givenAListOrderedMap_whenObjectIsSearched_thenMatchesConstantArray() {
assertEquals(ages[4], this.runnersListOrderedMap.get("Anna"));
}
@Test
public void givenAListOrderedMap_whenConvertedToList_thenMatchesKeySet() {
ListOrderedMap<String, Integer> lomap = (ListOrderedMap<String, Integer>) this.runnersListOrderedMap;
List<String> listKeys = new ArrayList<>();
listKeys.addAll(this.runnersListOrderedMap.keySet());
List<String> lomapList = lomap.asList();
assertEquals(listKeys, lomapList);
}
@Test
public void givenAListOrderedMap_whenSearchByIndexIsUsed_thenMatchesConstantArray() {
ListOrderedMap<String, Integer> lomap = (ListOrderedMap<String, Integer>) this.runnersListOrderedMap;
for (int i = 0; i < RUNNERS_COUNT; i++) {
// accessed by index:
String name = lomap.get(i);
assertEquals(name, this.names[i]);
// index of key concides with position in array
assertEquals(lomap.indexOf(this.names[i]), i);
}
}
@Test
public void givenAListOrderedMap_whenElementRemoved_thenSizeDecrease() {
ListOrderedMap<String, Integer> lomap = (ListOrderedMap<String, Integer>) this.runnersListOrderedMap;
Integer johnAge = lomap.remove("John");// by object
assertEquals(johnAge, new Integer(36));
assertEquals(lomap.size(), RUNNERS_COUNT - 1);
Integer emilyAge = lomap.remove(0);// by index
assertEquals(emilyAge, new Integer(37));
assertEquals(lomap.size(), RUNNERS_COUNT - 2);
}
}
@@ -1,105 +0,0 @@
package com.baeldung.commons.collections4;
import org.apache.commons.collections4.Bag;
import org.apache.commons.collections4.SortedBag;
import org.apache.commons.collections4.bag.*;
import org.junit.Test;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.not;
import static org.hamcrest.core.Is.is;
import static org.hamcrest.core.IsEqual.equalTo;
public class BagUnitTest {
@Test
public void givenMultipleCopies_whenAdded_theCountIsKept() {
Bag<Integer> bag = new HashBag<>(Arrays.asList(new Integer[] { 1, 2, 3, 3, 3, 1, 4 }));
assertThat(bag.getCount(1), equalTo(2));
}
@Test
public void givenBag_whenBagAddAPILikeCollectionAPI_thenFalse() {
Collection<Integer> collection = new ArrayList<>();
// Collection contract defines that add() should return true
assertThat(collection.add(9), is(true));
// Even when element is already in the collection
collection.add(1);
assertThat(collection.add(1), is(true));
Bag<Integer> bag = new HashBag<>();
// Bag returns true on adding a new element
assertThat(bag.add(9), is(true));
bag.add(1);
// But breaks the contract with false when it has to increment the count
assertThat(bag.add(1), is(not(true)));
}
@Test
public void givenDecoratedBag_whenBagAddAPILikeCollectionAPI_thenTrue() {
Bag<Integer> bag = CollectionBag.collectionBag(new HashBag<>());
bag.add(1);
// This time the behavior is compliant to the Java Collection
assertThat(bag.add(1), is((true)));
}
@Test
public void givenAdd_whenCountOfElementsDefined_thenCountAreAdded() {
Bag<Integer> bag = new HashBag<>();
// Adding 1 for 5 times
bag.add(1, 5);
assertThat(bag.getCount(1), equalTo(5));
}
@Test
public void givenMultipleCopies_whenRemove_allAreRemoved() {
Bag<Integer> bag = new HashBag<>(Arrays.asList(new Integer[] { 1, 2, 3, 3, 3, 1, 4 }));
// From 3 we delete 1, 2 remain
bag.remove(3, 1);
assertThat(bag.getCount(3), equalTo(2));
// From 2 we delete all
bag.remove(1);
assertThat(bag.getCount(1), equalTo(0));
}
@Test
public void givenTree_whenDuplicateElementsAdded_thenSort() {
TreeBag<Integer> bag = new TreeBag<>(Arrays.asList(new Integer[] { 7, 5, 1, 7, 2, 3, 3, 3, 1, 4, 7 }));
assertThat(bag.first(), equalTo(1));
assertThat(bag.getCount(bag.first()), equalTo(2));
assertThat(bag.last(), equalTo(7));
assertThat(bag.getCount(bag.last()), equalTo(3));
}
@Test
public void givenDecoratedTree_whenTreeAddAPILikeCollectionAPI_thenTrue() {
SortedBag<Integer> bag = CollectionSortedBag.collectionSortedBag(new TreeBag<>());
bag.add(1);
assertThat(bag.add(1), is((true)));
}
@Test
public void givenSortedBag_whenDuplicateElementsAdded_thenSort() {
SynchronizedSortedBag<Integer> bag = SynchronizedSortedBag.synchronizedSortedBag(new TreeBag<>(Arrays.asList(new Integer[] { 7, 5, 1, 7, 2, 3, 3, 3, 1, 4, 7 })));
assertThat(bag.first(), equalTo(1));
assertThat(bag.getCount(bag.first()), equalTo(2));
assertThat(bag.last(), equalTo(7));
assertThat(bag.getCount(bag.last()), equalTo(3));
}
}
@@ -1,55 +0,0 @@
package com.baeldung.commons.csv;
import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVPrinter;
import org.apache.commons.csv.CSVRecord;
import org.junit.Test;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;
import java.io.StringWriter;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import static org.junit.Assert.assertEquals;
public class CSVReaderWriterUnitTest {
public static final Map<String, String> AUTHOR_BOOK_MAP = Collections.unmodifiableMap(new LinkedHashMap<String, String>() {
{
put("Dan Simmons", "Hyperion");
put("Douglas Adams", "The Hitchhiker's Guide to the Galaxy");
}
});
public static final String[] HEADERS = { "author", "title" };
public static final String EXPECTED_FILESTREAM = "author,title\r\n" + "Dan Simmons,Hyperion\r\n" + "Douglas Adams,The Hitchhiker's Guide to the Galaxy";
@Test
public void givenCSVFile_whenRead_thenContentsAsExpected() throws IOException {
Reader in = new FileReader("src/test/resources/book.csv");
Iterable<CSVRecord> records = CSVFormat.DEFAULT.withHeader(HEADERS).withFirstRecordAsHeader().parse(in);
for (CSVRecord record : records) {
String author = record.get("author");
String title = record.get("title");
assertEquals(AUTHOR_BOOK_MAP.get(author), title);
}
}
@Test
public void givenAuthorBookMap_whenWrittenToStream_thenOutputStreamAsExpected() throws IOException {
StringWriter sw = new StringWriter();
try (final CSVPrinter printer = new CSVPrinter(sw, CSVFormat.DEFAULT.withHeader(HEADERS))) {
AUTHOR_BOOK_MAP.forEach((author, title) -> {
try {
printer.printRecord(author, title);
} catch (IOException e) {
e.printStackTrace();
}
});
}
assertEquals(EXPECTED_FILESTREAM, sw.toString().trim());
}
}
@@ -1,155 +0,0 @@
package com.baeldung.commons.dbutils;
import org.apache.commons.dbutils.AsyncQueryRunner;
import org.apache.commons.dbutils.DbUtils;
import org.apache.commons.dbutils.QueryRunner;
import org.apache.commons.dbutils.handlers.BeanListHandler;
import org.apache.commons.dbutils.handlers.MapListHandler;
import org.apache.commons.dbutils.handlers.ScalarHandler;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
public class DbUtilsUnitTest {
private Connection connection;
@Before
public void setupDB() throws Exception {
Class.forName("org.h2.Driver");
String db = "jdbc:h2:mem:;INIT=runscript from 'classpath:/employees.sql'";
connection = DriverManager.getConnection(db);
}
@After
public void closeBD() {
DbUtils.closeQuietly(connection);
}
@Test
public void givenResultHandler_whenExecutingQuery_thenExpectedList() throws SQLException {
MapListHandler beanListHandler = new MapListHandler();
QueryRunner runner = new QueryRunner();
List<Map<String, Object>> list = runner.query(connection, "SELECT * FROM employee", beanListHandler);
assertEquals(list.size(), 5);
assertEquals(list.get(0).get("firstname"), "John");
assertEquals(list.get(4).get("firstname"), "Christian");
}
@Test
public void givenResultHandler_whenExecutingQuery_thenEmployeeList() throws SQLException {
BeanListHandler<Employee> beanListHandler = new BeanListHandler<>(Employee.class);
QueryRunner runner = new QueryRunner();
List<Employee> employeeList = runner.query(connection, "SELECT * FROM employee", beanListHandler);
assertEquals(employeeList.size(), 5);
assertEquals(employeeList.get(0).getFirstName(), "John");
assertEquals(employeeList.get(4).getFirstName(), "Christian");
}
@Test
public void givenResultHandler_whenExecutingQuery_thenExpectedScalar() throws SQLException {
ScalarHandler<Long> scalarHandler = new ScalarHandler<>();
QueryRunner runner = new QueryRunner();
String query = "SELECT COUNT(*) FROM employee";
long count = runner.query(connection, query, scalarHandler);
assertEquals(count, 5);
}
@Test
public void givenResultHandler_whenExecutingQuery_thenEmailsSetted() throws SQLException {
EmployeeHandler employeeHandler = new EmployeeHandler(connection);
QueryRunner runner = new QueryRunner();
List<Employee> employees = runner.query(connection, "SELECT * FROM employee", employeeHandler);
assertEquals(employees.get(0).getEmails().size(), 2);
assertEquals(employees.get(2).getEmails().size(), 3);
assertNotNull(employees.get(0).getEmails().get(0).getEmployeeId());
}
@Test
public void givenResultHandler_whenExecutingQuery_thenAllPropertiesSetted() throws SQLException {
EmployeeHandler employeeHandler = new EmployeeHandler(connection);
QueryRunner runner = new QueryRunner();
String query = "SELECT * FROM employee_legacy";
List<Employee> employees = runner.query(connection, query, employeeHandler);
assertEquals((int) employees.get(0).getId(), 1);
assertEquals(employees.get(0).getFirstName(), "John");
}
@Test
public void whenInserting_thenInserted() throws SQLException {
QueryRunner runner = new QueryRunner();
String insertSQL = "INSERT INTO employee (firstname,lastname,salary, hireddate) VALUES (?, ?, ?, ?)";
int numRowsInserted = runner.update(connection, insertSQL, "Leia", "Kane", 60000.60, new Date());
assertEquals(numRowsInserted, 1);
}
@Test
public void givenHandler_whenInserting_thenExpectedId() throws SQLException {
ScalarHandler<Integer> scalarHandler = new ScalarHandler<>();
QueryRunner runner = new QueryRunner();
String insertSQL = "INSERT INTO employee (firstname,lastname,salary, hireddate) VALUES (?, ?, ?, ?)";
int newId = runner.insert(connection, insertSQL, scalarHandler, "Jenny", "Medici", 60000.60, new Date());
assertEquals(newId, 6);
}
@Test
public void givenSalary_whenUpdating_thenUpdated() throws SQLException {
double salary = 35000;
QueryRunner runner = new QueryRunner();
String updateSQL = "UPDATE employee SET salary = salary * 1.1 WHERE salary <= ?";
int numRowsUpdated = runner.update(connection, updateSQL, salary);
assertEquals(numRowsUpdated, 3);
}
@Test
public void whenDeletingRecord_thenDeleted() throws SQLException {
QueryRunner runner = new QueryRunner();
String deleteSQL = "DELETE FROM employee WHERE id = ?";
int numRowsDeleted = runner.update(connection, deleteSQL, 3);
assertEquals(numRowsDeleted, 1);
}
@Test
public void givenAsyncRunner_whenExecutingQuery_thenExpectedList() throws Exception {
AsyncQueryRunner runner = new AsyncQueryRunner(Executors.newCachedThreadPool());
EmployeeHandler employeeHandler = new EmployeeHandler(connection);
String query = "SELECT * FROM employee";
Future<List<Employee>> future = runner.query(connection, query, employeeHandler);
List<Employee> employeeList = future.get(10, TimeUnit.SECONDS);
assertEquals(employeeList.size(), 5);
}
}
@@ -1,123 +0,0 @@
package com.baeldung.commons.io;
import org.apache.commons.io.FileSystemUtils;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOCase;
import org.apache.commons.io.comparator.PathFileComparator;
import org.apache.commons.io.comparator.SizeFileComparator;
import org.apache.commons.io.filefilter.AndFileFilter;
import org.apache.commons.io.filefilter.NameFileFilter;
import org.apache.commons.io.filefilter.SuffixFileFilter;
import org.apache.commons.io.filefilter.WildcardFileFilter;
import org.apache.commons.io.input.TeeInputStream;
import org.apache.commons.io.output.TeeOutputStream;
import org.junit.Assert;
import org.junit.Test;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.nio.charset.Charset;
public class CommonsIOUnitTest {
@Test
public void whenCopyANDReadFileTesttxt_thenMatchExpectedData() throws IOException {
String expectedData = "Hello World from fileTest.txt!!!";
File file = FileUtils.getFile(getClass().getClassLoader().getResource("fileTest.txt").getPath());
File tempDir = FileUtils.getTempDirectory();
FileUtils.copyFileToDirectory(file, tempDir);
File newTempFile = FileUtils.getFile(tempDir, file.getName());
String data = FileUtils.readFileToString(newTempFile, Charset.defaultCharset());
Assert.assertEquals(expectedData, data.trim());
}
@Test
public void whenUsingFileNameUtils_thenshowdifferentFileOperations() throws IOException {
String path = getClass().getClassLoader().getResource("fileTest.txt").getPath();
String fullPath = FilenameUtils.getFullPath(path);
String extension = FilenameUtils.getExtension(path);
String baseName = FilenameUtils.getBaseName(path);
System.out.println("full path" + fullPath);
System.out.println("Extension" + extension);
System.out.println("Base name" + baseName);
}
@Test
public void whenUsingFileSystemUtils_thenDriveFreeSpace() throws IOException {
long freeSpace = FileSystemUtils.freeSpaceKb("/");
}
@SuppressWarnings("resource")
@Test
public void whenUsingTeeInputOutputStream_thenWriteto2OutputStreams() throws IOException {
final String str = "Hello World.";
ByteArrayInputStream inputStream = new ByteArrayInputStream(str.getBytes());
ByteArrayOutputStream outputStream1 = new ByteArrayOutputStream();
ByteArrayOutputStream outputStream2 = new ByteArrayOutputStream();
FilterOutputStream teeOutputStream = new TeeOutputStream(outputStream1, outputStream2);
new TeeInputStream(inputStream, teeOutputStream, true).read(new byte[str.length()]);
Assert.assertEquals(str, String.valueOf(outputStream1));
Assert.assertEquals(str, String.valueOf(outputStream2));
}
@Test
public void whenGetFilewithNameFileFilter_thenFindfileTesttxt() throws IOException {
final String testFile = "fileTest.txt";
String path = getClass().getClassLoader().getResource(testFile).getPath();
File dir = FileUtils.getFile(FilenameUtils.getFullPath(path));
String[] possibleNames = { "NotThisOne", testFile };
Assert.assertEquals(testFile, dir.list(new NameFileFilter(possibleNames, IOCase.INSENSITIVE))[0]);
}
@Test
public void whenGetFilewith_ANDFileFilter_thenFindsampletxt() throws IOException {
String path = getClass().getClassLoader().getResource("fileTest.txt").getPath();
File dir = FileUtils.getFile(FilenameUtils.getFullPath(path));
Assert.assertEquals("sample.txt", dir.list(new AndFileFilter(new WildcardFileFilter("*ple*", IOCase.INSENSITIVE), new SuffixFileFilter("txt")))[0]);
}
@Test
public void whenSortDirWithPathFileComparator_thenFirstFileaaatxt() throws IOException {
PathFileComparator pathFileComparator = new PathFileComparator(IOCase.INSENSITIVE);
String path = FilenameUtils.getFullPath(getClass().getClassLoader().getResource("fileTest.txt").getPath());
File dir = new File(path);
File[] files = dir.listFiles();
pathFileComparator.sort(files);
Assert.assertEquals("aaa.txt", files[0].getName());
}
@Test
public void whenSizeFileComparator_thenLargerFile() throws IOException {
SizeFileComparator sizeFileComparator = new SizeFileComparator();
File largerFile = FileUtils.getFile(getClass().getClassLoader().getResource("fileTest.txt").getPath());
File smallerFile = FileUtils.getFile(getClass().getClassLoader().getResource("sample.txt").getPath());
int i = sizeFileComparator.compare(largerFile, smallerFile);
Assert.assertTrue(i > 0);
}
}
@@ -1,138 +0,0 @@
package com.baeldung.commons.lang3;
import org.apache.commons.lang3.ArrayUtils;
import org.junit.Test;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
public class ArrayUtilsUnitTest {
@Test
public void givenArray_whenAddingElementAtSpecifiedPosition_thenCorrect() {
int[] oldArray = { 2, 3, 4, 5 };
int[] newArray = ArrayUtils.add(oldArray, 0, 1);
int[] expectedArray = { 1, 2, 3, 4, 5 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenAddingElementAtTheEnd_thenCorrect() {
int[] oldArray = { 2, 3, 4, 5 };
int[] newArray = ArrayUtils.add(oldArray, 1);
int[] expectedArray = { 2, 3, 4, 5, 1 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenAddingAllElementsAtTheEnd_thenCorrect() {
int[] oldArray = { 0, 1, 2 };
int[] newArray = ArrayUtils.addAll(oldArray, 3, 4, 5);
int[] expectedArray = { 0, 1, 2, 3, 4, 5 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenRemovingElementAtSpecifiedPosition_thenCorrect() {
int[] oldArray = { 1, 2, 3, 4, 5 };
int[] newArray = ArrayUtils.remove(oldArray, 1);
int[] expectedArray = { 1, 3, 4, 5 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenRemovingAllElementsAtSpecifiedPositions_thenCorrect() {
int[] oldArray = { 1, 2, 3, 4, 5 };
int[] newArray = ArrayUtils.removeAll(oldArray, 1, 3);
int[] expectedArray = { 1, 3, 5 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenRemovingAnElement_thenCorrect() {
int[] oldArray = { 1, 2, 3, 3, 4 };
int[] newArray = ArrayUtils.removeElement(oldArray, 3);
int[] expectedArray = { 1, 2, 3, 4 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenRemovingElements_thenCorrect() {
int[] oldArray = { 1, 2, 3, 3, 4 };
int[] newArray = ArrayUtils.removeElements(oldArray, 2, 3, 5);
int[] expectedArray = { 1, 3, 4 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenRemovingAllElementOccurences_thenCorrect() {
int[] oldArray = { 1, 2, 2, 2, 3 };
int[] newArray = ArrayUtils.removeAllOccurences(oldArray, 2);
int[] expectedArray = { 1, 3 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenCheckingExistingElement_thenCorrect() {
int[] array = { 1, 3, 5, 7, 9 };
boolean evenContained = ArrayUtils.contains(array, 2);
boolean oddContained = ArrayUtils.contains(array, 7);
assertEquals(false, evenContained);
assertEquals(true, oddContained);
}
@Test
public void givenArray_whenReversingElementsWithinARange_thenCorrect() {
int[] originalArray = { 1, 2, 3, 4, 5 };
ArrayUtils.reverse(originalArray, 1, 4);
int[] expectedArray = { 1, 4, 3, 2, 5 };
assertArrayEquals(expectedArray, originalArray);
}
@Test
public void givenArray_whenReversingAllElements_thenCorrect() {
int[] originalArray = { 1, 2, 3, 4, 5 };
ArrayUtils.reverse(originalArray);
int[] expectedArray = { 5, 4, 3, 2, 1 };
assertArrayEquals(expectedArray, originalArray);
}
@Test
public void givenArray_whenShiftingElementsWithinARange_thenCorrect() {
int[] originalArray = { 1, 2, 3, 4, 5 };
ArrayUtils.shift(originalArray, 1, 4, 1);
int[] expectedArray = { 1, 4, 2, 3, 5 };
assertArrayEquals(expectedArray, originalArray);
}
@Test
public void givenArray_whenShiftingAllElements_thenCorrect() {
int[] originalArray = { 1, 2, 3, 4, 5 };
ArrayUtils.shift(originalArray, 1);
int[] expectedArray = { 5, 1, 2, 3, 4 };
assertArrayEquals(expectedArray, originalArray);
}
@Test
public void givenArray_whenExtractingElements_thenCorrect() {
int[] oldArray = { 1, 2, 3, 4, 5 };
int[] newArray = ArrayUtils.subarray(oldArray, 2, 7);
int[] expectedArray = { 3, 4, 5 };
assertArrayEquals(expectedArray, newArray);
}
@Test
public void givenArray_whenSwapingElementsWithinARange_thenCorrect() {
int[] originalArray = { 1, 2, 3, 4, 5 };
ArrayUtils.swap(originalArray, 0, 3, 2);
int[] expectedArray = { 4, 5, 3, 1, 2 };
assertArrayEquals(expectedArray, originalArray);
}
@Test
public void givenArray_whenSwapingElementsAtSpecifiedPositions_thenCorrect() {
int[] originalArray = { 1, 2, 3, 4, 5 };
ArrayUtils.swap(originalArray, 0, 3);
int[] expectedArray = { 4, 2, 3, 1, 5 };
assertArrayEquals(expectedArray, originalArray);
}
}
@@ -1,149 +0,0 @@
package com.baeldung.commons.lang3;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.lang.reflect.Field;
import java.util.Locale;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import org.apache.commons.lang3.ArchUtils;
import org.apache.commons.lang3.BooleanUtils;
import org.apache.commons.lang3.SystemUtils;
import org.apache.commons.lang3.arch.Processor;
import org.apache.commons.lang3.concurrent.BasicThreadFactory;
import org.apache.commons.lang3.concurrent.ConcurrentException;
import org.apache.commons.lang3.concurrent.ConcurrentRuntimeException;
import org.apache.commons.lang3.concurrent.ConcurrentUtils;
import org.apache.commons.lang3.event.EventUtils;
import org.apache.commons.lang3.reflect.FieldUtils;
import org.apache.commons.lang3.time.FastDateFormat;
import org.junit.Assert;
import org.junit.Test;
public class Lang3UtilsUnitTest {
@Test
public void test_to_Boolean_fromString() {
assertFalse(BooleanUtils.toBoolean("off"));
assertTrue(BooleanUtils.toBoolean("true"));
assertTrue(BooleanUtils.toBoolean("tRue"));
assertFalse(BooleanUtils.toBoolean("no"));
assertFalse(BooleanUtils.isTrue(Boolean.FALSE));
assertFalse(BooleanUtils.isTrue(null));
}
@Test
public void testGetUserHome() {
final File dir = SystemUtils.getUserHome();
Assert.assertNotNull(dir);
Assert.assertTrue(dir.exists());
}
@Test
public void testGetJavaHome() {
final File dir = SystemUtils.getJavaHome();
Assert.assertNotNull(dir);
Assert.assertTrue(dir.exists());
}
@Test
public void testProcessorArchType() {
Processor processor = ArchUtils.getProcessor("x86");
assertTrue(processor.is32Bit());
assertFalse(processor.is64Bit());
}
@Test
public void testProcessorArchType64Bit() {
Processor processor = ArchUtils.getProcessor("x86_64");
assertFalse(processor.is32Bit());
assertTrue(processor.is64Bit());
}
@Test(expected = IllegalArgumentException.class)
public void testConcurrentRuntimeExceptionCauseError() {
new ConcurrentRuntimeException("An error", new Error());
}
@Test
public void testConstantFuture_Integer() throws Exception {
Future<Integer> test = ConcurrentUtils.constantFuture(5);
assertTrue(test.isDone());
assertSame(5, test.get());
assertFalse(test.isCancelled());
}
@Test
public void testFieldUtilsGetAllFields() {
final Field[] fieldsNumber = Number.class.getDeclaredFields();
assertArrayEquals(fieldsNumber, FieldUtils.getAllFields(Number.class));
}
@Test
public void test_getInstance_String_Locale() {
final FastDateFormat format1 = FastDateFormat.getInstance("MM/DD/yyyy", Locale.US);
final FastDateFormat format3 = FastDateFormat.getInstance("MM/DD/yyyy", Locale.GERMANY);
assertNotSame(format1, format3);
}
@Test
public void testAddEventListenerThrowsException() {
final ExceptionEventSource src = new ExceptionEventSource();
try {
EventUtils.addEventListener(src, PropertyChangeListener.class, (PropertyChangeEvent e) -> {
/* Change event*/});
fail("Add method should have thrown an exception, so method should fail.");
} catch (final RuntimeException e) {
}
}
@Test
public void ConcurrentExceptionSample() throws ConcurrentException {
final Error err = new AssertionError("Test");
try {
ConcurrentUtils.handleCause(new ExecutionException(err));
fail("Error not thrown!");
} catch (final Error e) {
assertEquals("Wrong error", err, e);
}
}
public static class ExceptionEventSource {
public void addPropertyChangeListener(final PropertyChangeListener listener) {
throw new RuntimeException();
}
}
@Test
public void testLazyInitializer() throws Exception {
SampleLazyInitializer sampleLazyInitializer = new SampleLazyInitializer();
SampleObject sampleObjectOne = sampleLazyInitializer.get();
SampleObject sampleObjectTwo = sampleLazyInitializer.get();
assertEquals(sampleObjectOne, sampleObjectTwo);
}
@Test
public void testBuildDefaults() {
BasicThreadFactory.Builder builder = new BasicThreadFactory.Builder();
BasicThreadFactory factory = builder.build();
assertNull("No naming pattern set Yet", factory.getNamingPattern());
BasicThreadFactory factory2 = builder.namingPattern("sampleNamingPattern").daemon(true).priority(Thread.MIN_PRIORITY).build();
assertNotNull("Got a naming pattern", factory2.getNamingPattern());
assertEquals("sampleNamingPattern", factory2.getNamingPattern());
}
}
@@ -1,100 +0,0 @@
package com.baeldung.commons.lang3;
import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class StringUtilsUnitTest {
@Test
public void givenString_whenCheckingContainsAny_thenCorrect() {
String string = "baeldung.com";
boolean contained1 = StringUtils.containsAny(string, 'a', 'b', 'c');
boolean contained2 = StringUtils.containsAny(string, 'x', 'y', 'z');
boolean contained3 = StringUtils.containsAny(string, "abc");
boolean contained4 = StringUtils.containsAny(string, "xyz");
assertTrue(contained1);
assertFalse(contained2);
assertTrue(contained3);
assertFalse(contained4);
}
@Test
public void givenString_whenCheckingContainsIgnoreCase_thenCorrect() {
String string = "baeldung.com";
boolean contained = StringUtils.containsIgnoreCase(string, "BAELDUNG");
assertTrue(contained);
}
@Test
public void givenString_whenCountingMatches_thenCorrect() {
String string = "welcome to www.baeldung.com";
int charNum = StringUtils.countMatches(string, 'w');
int stringNum = StringUtils.countMatches(string, "com");
assertEquals(4, charNum);
assertEquals(2, stringNum);
}
@Test
public void givenString_whenAppendingAndPrependingIfMissing_thenCorrect() {
String string = "baeldung.com";
String stringWithSuffix = StringUtils.appendIfMissing(string, ".com");
String stringWithPrefix = StringUtils.prependIfMissing(string, "www.");
assertEquals("baeldung.com", stringWithSuffix);
assertEquals("www.baeldung.com", stringWithPrefix);
}
@Test
public void givenString_whenSwappingCase_thenCorrect() {
String originalString = "baeldung.COM";
String swappedString = StringUtils.swapCase(originalString);
assertEquals("BAELDUNG.com", swappedString);
}
@Test
public void givenString_whenCapitalizing_thenCorrect() {
String originalString = "baeldung";
String capitalizedString = StringUtils.capitalize(originalString);
assertEquals("Baeldung", capitalizedString);
}
@Test
public void givenString_whenUncapitalizing_thenCorrect() {
String originalString = "Baeldung";
String uncapitalizedString = StringUtils.uncapitalize(originalString);
assertEquals("baeldung", uncapitalizedString);
}
@Test
public void givenString_whenReversingCharacters_thenCorrect() {
String originalString = "baeldung";
String reversedString = StringUtils.reverse(originalString);
assertEquals("gnudleab", reversedString);
}
@Test
public void givenString_whenReversingWithDelimiter_thenCorrect() {
String originalString = "www.baeldung.com";
String reversedString = StringUtils.reverseDelimited(originalString, '.');
assertEquals("com.baeldung.www", reversedString);
}
@Test
public void givenString_whenRotatingTwoPositions_thenCorrect() {
String originalString = "baeldung";
String rotatedString = StringUtils.rotate(originalString, 4);
assertEquals("dungbael", rotatedString);
}
@Test
public void givenTwoStrings_whenComparing_thenCorrect() {
String tutorials = "Baeldung Tutorials";
String courses = "Baeldung Courses";
String diff1 = StringUtils.difference(tutorials, courses);
String diff2 = StringUtils.difference(courses, tutorials);
assertEquals("Courses", diff1);
assertEquals("Tutorials", diff2);
}
}
@@ -1,84 +0,0 @@
package com.baeldung.commons.lang3.test;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.lang3.ArrayUtils;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class ArrayUtilsUnitTest {
@Test
public void givenArrayUtilsClass_whenCalledtoString_thenCorrect() {
String[] array = {"a", "b", "c"};
assertThat(ArrayUtils.toString(array)).isEqualTo("{a,b,c}");
}
@Test
public void givenArrayUtilsClass_whenCalledtoStringIfArrayisNull_thenCorrect() {
String[] array = null;
assertThat(ArrayUtils.toString(array, "Array is null")).isEqualTo("Array is null");
}
@Test
public void givenArrayUtilsClass_whenCalledhashCode_thenCorrect() {
String[] array = {"a", "b", "c"};
assertThat(ArrayUtils.hashCode(array)).isEqualTo(997619);
}
@Test
public void givenArrayUtilsClass_whenCalledtoMap_thenCorrect() {
String[][] array = {{"1", "one", }, {"2", "two", }, {"3", "three"}};
Map map = new HashMap();
map.put("1", "one");
map.put("2", "two");
map.put("3", "three");
assertThat(ArrayUtils.toMap(array)).isEqualTo(map);
}
@Test
public void givenArrayUtilsClass_whenCallednullToEmptyStringArray_thenCorrect() {
String[] array = null;
assertThat(ArrayUtils.nullToEmpty(array)).isEmpty();
}
@Test
public void givenArrayUtilsClass_whenCallednullToEmptyObjectArray_thenCorrect() {
Object[] array = null;
assertThat(ArrayUtils.nullToEmpty(array)).isEmpty();
}
@Test
public void givenArrayUtilsClass_whenCalledsubarray_thenCorrect() {
int[] array = {1, 2, 3};
int[] expected = {1};
assertThat(ArrayUtils.subarray(array, 0, 1)).isEqualTo(expected);
}
@Test
public void givenArrayUtilsClass_whenCalledisSameLength_thenCorrect() {
int[] array1 = {1, 2, 3};
int[] array2 = {1, 2, 3};
assertThat(ArrayUtils.isSameLength(array1, array2)).isTrue();
}
@Test
public void givenArrayUtilsClass_whenCalledreverse_thenCorrect() {
int[] array1 = {1, 2, 3};
int[] array2 = {3, 2, 1};
ArrayUtils.reverse(array1);
assertThat(array1).isEqualTo(array2);
}
@Test
public void givenArrayUtilsClass_whenCalledIndexOf_thenCorrect() {
int[] array = {1, 2, 3};
assertThat(ArrayUtils.indexOf(array, 1, 0)).isEqualTo(0);
}
@Test
public void givenArrayUtilsClass_whenCalledcontains_thenCorrect() {
int[] array = {1, 2, 3};
assertThat(ArrayUtils.contains(array, 1)).isTrue();
}
}
@@ -1,18 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.concurrent.BasicThreadFactory;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class BasicThreadFactoryUnitTest {
@Test
public void givenBasicThreadFactoryInstance_whenCalledBuilder_thenCorrect() {
BasicThreadFactory factory = new BasicThreadFactory.Builder()
.namingPattern("workerthread-%d")
.daemon(true)
.priority(Thread.MAX_PRIORITY)
.build();
assertThat(factory).isInstanceOf(BasicThreadFactory.class);
}
}
@@ -1,28 +0,0 @@
package com.baeldung.commons.lang3.test;
import com.baeldung.commons.lang3.beans.User;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import org.apache.commons.lang3.reflect.ConstructorUtils;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class ConstructorUtilsUnitTest {
@Test
public void givenConstructorUtilsClass_whenCalledgetAccessibleConstructor_thenCorrect() {
assertThat(ConstructorUtils.getAccessibleConstructor(User.class, String.class, String.class)).isInstanceOf(Constructor.class);
}
@Test
public void givenConstructorUtilsClass_whenCalledinvokeConstructor_thenCorrect() throws Exception {
assertThat(ConstructorUtils.invokeConstructor(User.class, "name", "email")).isInstanceOf(User.class);
}
@Test
public void givenConstructorUtilsClass_whenCalledinvokeExactConstructor_thenCorrect() throws Exception {
String[] args = {"name", "email"};
Class[] parameterTypes= {String.class, String.class};
assertThat(ConstructorUtils.invokeExactConstructor(User.class, args, parameterTypes)).isInstanceOf(User.class);
}
}
@@ -1,60 +0,0 @@
package com.baeldung.commons.lang3.test;
import com.baeldung.commons.lang3.beans.User;
import org.apache.commons.lang3.reflect.FieldUtils;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class FieldUtilsUnitTest {
private static User user;
@BeforeClass
public static void setUpUserInstance() {
user = new User("Julie", "julie@domain.com");
}
@Test
public void givenFieldUtilsClass_whenCalledgetField_thenCorrect() {
assertThat(FieldUtils.getField(User.class, "name", true).getName()).isEqualTo("name");
}
@Test
public void givenFieldUtilsClass_whenCalledgetFieldForceAccess_thenCorrect() {
assertThat(FieldUtils.getField(User.class, "name", true).getName()).isEqualTo("name");
}
@Test
public void givenFieldUtilsClass_whenCalledgetDeclaredFieldForceAccess_thenCorrect() {
assertThat(FieldUtils.getDeclaredField(User.class, "name", true).getName()).isEqualTo("name");
}
@Test
public void givenFieldUtilsClass_whenCalledgetAllField_thenCorrect() {
assertThat(FieldUtils.getAllFields(User.class).length).isEqualTo(2);
}
@Test
public void givenFieldUtilsClass_whenCalledreadField_thenCorrect() throws IllegalAccessException {
assertThat(FieldUtils.readField(user, "name", true)).isEqualTo("Julie");
}
@Test
public void givenFieldUtilsClass_whenCalledreadDeclaredField_thenCorrect() throws IllegalAccessException {
assertThat(FieldUtils.readDeclaredField(user, "name", true)).isEqualTo("Julie");
}
@Test
public void givenFieldUtilsClass_whenCalledwriteField_thenCorrect() throws IllegalAccessException {
FieldUtils.writeField(user, "name", "Julie", true);
assertThat(FieldUtils.readField(user, "name", true)).isEqualTo("Julie");
}
@Test
public void givenFieldUtilsClass_whenCalledwriteDeclaredField_thenCorrect() throws IllegalAccessException {
FieldUtils.writeDeclaredField(user, "name", "Julie", true);
assertThat(FieldUtils.readField(user, "name", true)).isEqualTo("Julie");
}
}
@@ -1,34 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.math.Fraction;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class FractionUnitTest {
@Test
public void givenFractionClass_whenCalledgetFraction_thenCorrect() {
assertThat(Fraction.getFraction(5, 6)).isInstanceOf(Fraction.class);
}
@Test
public void givenTwoFractionInstances_whenCalledadd_thenCorrect() {
Fraction fraction1 = Fraction.getFraction(1, 4);
Fraction fraction2 = Fraction.getFraction(3, 4);
assertThat(fraction1.add(fraction2).toString()).isEqualTo("1/1");
}
@Test
public void givenTwoFractionInstances_whenCalledsubstract_thenCorrect() {
Fraction fraction1 = Fraction.getFraction(3, 4);
Fraction fraction2 = Fraction.getFraction(1, 4);
assertThat(fraction1.subtract(fraction2).toString()).isEqualTo("1/2");
}
@Test
public void givenTwoFractionInstances_whenCalledmultiply_thenCorrect() {
Fraction fraction1 = Fraction.getFraction(3, 4);
Fraction fraction2 = Fraction.getFraction(1, 4);
assertThat(fraction1.multiplyBy(fraction2).toString()).isEqualTo("3/16");
}
}
@@ -1,17 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class HashCodeBuilderUnitTest {
@Test
public void givenHashCodeBuilderInstance_whenCalledtoHashCode_thenCorrect() {
int hashcode = new HashCodeBuilder(17, 37)
.append("John")
.append("john@domain.com")
.toHashCode();
assertThat(hashcode).isEqualTo(1269178828);
}
}
@@ -1,36 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.tuple.ImmutablePair;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class ImmutablePairUnitTest {
private static ImmutablePair<String, String> immutablePair;
@BeforeClass
public static void setUpImmutablePairInstance() {
immutablePair = new ImmutablePair<>("leftElement", "rightElement");
}
@Test
public void givenImmutablePairInstance_whenCalledgetLeft_thenCorrect() {
assertThat(immutablePair.getLeft()).isEqualTo("leftElement");
}
@Test
public void givenImmutablePairInstance_whenCalledgetRight_thenCorrect() {
assertThat(immutablePair.getRight()).isEqualTo("rightElement");
}
@Test
public void givenImmutablePairInstance_whenCalledof_thenCorrect() {
assertThat(ImmutablePair.of("leftElement", "rightElement")).isInstanceOf(ImmutablePair.class);
}
@Test(expected = UnsupportedOperationException.class)
public void givenImmutablePairInstance_whenCalledSetValue_thenThrowUnsupportedOperationException() {
immutablePair.setValue("newValue");
}
}
@@ -1,31 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.tuple.ImmutableTriple;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class ImmutableTripleUnitTest {
private static ImmutableTriple<String, String, String> immutableTriple;
@BeforeClass
public static void setUpImmutableTripleInstance() {
immutableTriple = new ImmutableTriple<>("leftElement", "middleElement", "rightElement");
}
@Test
public void givenImmutableTripleInstance_whenCalledgetLeft_thenCorrect() {
assertThat(immutableTriple.getLeft()).isEqualTo("leftElement");
}
@Test
public void givenImmutableTripleInstance_whenCalledgetMiddle_thenCorrect() {
assertThat(immutableTriple.getMiddle()).isEqualTo("middleElement");
}
@Test
public void givenImmutableInstance_whenCalledgetRight_thenCorrect() {
assertThat(immutableTriple.getRight()).isEqualTo("rightElement");
}
}
@@ -1,16 +0,0 @@
package com.baeldung.commons.lang3.test;
import com.baeldung.commons.lang3.beans.User;
import com.baeldung.commons.lang3.beans.UserInitializer;
import org.apache.commons.lang3.concurrent.ConcurrentException;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class LazyInitializerUnitTest {
@Test
public void givenLazyInitializerInstance_whenCalledget_thenCorrect() throws ConcurrentException {
UserInitializer userInitializer = new UserInitializer();
assertThat(userInitializer.get()).isInstanceOf(User.class);
}
}
@@ -1,15 +0,0 @@
package com.baeldung.commons.lang3.test;
import com.baeldung.commons.lang3.beans.User;
import java.lang.reflect.Method;
import org.apache.commons.lang3.reflect.MethodUtils;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class MethodUtilsUnitTest {
@Test
public void givenMethodUtilsClass_whenCalledgetAccessibleMethod_thenCorrect() {
assertThat(MethodUtils.getAccessibleMethod(User.class, "getName")).isInstanceOf(Method.class);
}
}
@@ -1,32 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.mutable.MutableObject;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class MutableObjectUnitTest {
private static MutableObject mutableObject;
@BeforeClass
public static void setUpMutableObject() {
mutableObject = new MutableObject("Initial value");
}
@Test
public void givenMutableObject_whenCalledgetValue_thenCorrect() {
assertThat(mutableObject.getValue()).isInstanceOf(String.class);
}
@Test
public void givenMutableObject_whenCalledsetValue_thenCorrect() {
mutableObject.setValue("Another value");
assertThat(mutableObject.getValue()).isEqualTo("Another value");
}
@Test
public void givenMutableObject_whenCalledtoString_thenCorrect() {
assertThat(mutableObject.toString()).isEqualTo("Another value");
}
}
@@ -1,32 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.tuple.MutablePair;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class MutablePairUnitTest {
private static MutablePair<String, String> mutablePair;
@BeforeClass
public static void setUpMutablePairInstance() {
mutablePair = new MutablePair<>("leftElement", "rightElement");
}
@Test
public void givenMutablePairInstance_whenCalledgetLeft_thenCorrect() {
assertThat(mutablePair.getLeft()).isEqualTo("leftElement");
}
@Test
public void givenMutablePairInstance_whenCalledgetRight_thenCorrect() {
assertThat(mutablePair.getRight()).isEqualTo("rightElement");
}
@Test
public void givenMutablePairInstance_whenCalledsetLeft_thenCorrect() {
mutablePair.setLeft("newLeftElement");
assertThat(mutablePair.getLeft()).isEqualTo("newLeftElement");
}
}
@@ -1,46 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.math.NumberUtils;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class NumberUtilsUnitTest {
@Test
public void givenNumberUtilsClass_whenCalledcompareWithIntegers_thenCorrect() {
assertThat(NumberUtils.compare(1, 1)).isEqualTo(0);
}
@Test
public void givenNumberUtilsClass_whenCalledcompareWithLongs_thenCorrect() {
assertThat(NumberUtils.compare(1L, 1L)).isEqualTo(0);
}
@Test
public void givenNumberUtilsClass_whenCalledcreateNumber_thenCorrect() {
assertThat(NumberUtils.createNumber("123456")).isEqualTo(123456);
}
@Test
public void givenNumberUtilsClass_whenCalledisDigits_thenCorrect() {
assertThat(NumberUtils.isDigits("123456")).isTrue();
}
@Test
public void givenNumberUtilsClass_whenCallemaxwithIntegerArray_thenCorrect() {
int[] array = {1, 2, 3, 4, 5, 6};
assertThat(NumberUtils.max(array)).isEqualTo(6);
}
@Test
public void givenNumberUtilsClass_whenCalleminwithIntegerArray_thenCorrect() {
int[] array = {1, 2, 3, 4, 5, 6};
assertThat(NumberUtils.min(array)).isEqualTo(1);
}
@Test
public void givenNumberUtilsClass_whenCalleminwithByteArray_thenCorrect() {
byte[] array = {1, 2, 3, 4, 5, 6};
assertThat(NumberUtils.min(array)).isEqualTo((byte) 1);
}
}
@@ -1,73 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.StringUtils;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class StringUtilsUnitTest {
@Test
public void givenStringUtilsClass_whenCalledisBlank_thenCorrect() {
assertThat(StringUtils.isBlank(" ")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledisEmpty_thenCorrect() {
assertThat(StringUtils.isEmpty("")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledisAllLowerCase_thenCorrect() {
assertThat(StringUtils.isAllLowerCase("abd")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledisAllUpperCase_thenCorrect() {
assertThat(StringUtils.isAllUpperCase("ABC")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledisMixedCase_thenCorrect() {
assertThat(StringUtils.isMixedCase("abC")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledisAlpha_thenCorrect() {
assertThat(StringUtils.isAlpha("abc")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledisAlphanumeric_thenCorrect() {
assertThat(StringUtils.isAlphanumeric("abc123")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledcontains_thenCorrect() {
assertThat(StringUtils.contains("abc", "ab")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledcontainsAny_thenCorrect() {
assertThat(StringUtils.containsAny("abc", 'a', 'b', 'c')).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledcontainsIgnoreCase_thenCorrect() {
assertThat(StringUtils.containsIgnoreCase("abc", "ABC")).isTrue();
}
@Test
public void givenStringUtilsClass_whenCalledswapCase_thenCorrect() {
assertThat(StringUtils.swapCase("abc")).isEqualTo("ABC");
}
@Test
public void givenStringUtilsClass_whenCalledreverse_thenCorrect() {
assertThat(StringUtils.reverse("abc")).isEqualTo("cba");
}
@Test
public void givenStringUtilsClass_whenCalleddifference_thenCorrect() {
assertThat(StringUtils.difference("abc", "abd")).isEqualTo("d");
}
}
@@ -1,27 +0,0 @@
package com.baeldung.commons.lang3.test;
import java.io.File;
import org.apache.commons.lang3.JavaVersion;
import org.apache.commons.lang3.SystemUtils;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class SystemsUtilsManualTest {
// the paths depend on the OS and installed version of Java
@Test
public void givenSystemUtilsClass_whenCalledgetJavaHome_thenCorrect() {
assertThat(SystemUtils.getJavaHome()).isEqualTo(new File("/usr/lib/jvm/java-8-oracle/jre"));
}
@Test
public void givenSystemUtilsClass_whenCalledgetUserHome_thenCorrect() {
assertThat(SystemUtils.getUserHome()).isEqualTo(new File("/home/travis"));
}
@Test
public void givenSystemUtilsClass_whenCalledisJavaVersionAtLeast_thenCorrect() {
assertThat(SystemUtils.isJavaVersionAtLeast(JavaVersion.JAVA_RECENT)).isTrue();
}
}
@@ -1,31 +0,0 @@
package com.baeldung.commons.lang3.test;
import org.apache.commons.lang3.tuple.Triple;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.BeforeClass;
import org.junit.Test;
public class TripleUnitTest {
private static Triple<String, String, String> triple;
@BeforeClass
public static void setUpTripleInstance() {
triple = Triple.of("leftElement", "middleElement", "rightElement");
}
@Test
public void givenTripleInstance_whenCalledgetLeft_thenCorrect() {
assertThat(triple.getLeft()).isEqualTo("leftElement");
}
@Test
public void givenTripleInstance_whenCalledgetMiddle_thenCorrect() {
assertThat(triple.getMiddle()).isEqualTo("middleElement");
}
@Test
public void givenTripleInstance_whenCalledgetRight_thenCorrect() {
assertThat(triple.getRight()).isEqualTo("rightElement");
}
}
@@ -1,20 +0,0 @@
package com.baeldung.commons.math;
import org.apache.commons.math3.complex.Complex;
import org.junit.Assert;
import org.junit.Test;
public class ComplexUnitTest {
@Test
public void whenComplexPow_thenCorrect() {
Complex first = new Complex(1.0, 3.0);
Complex second = new Complex(2.0, 5.0);
Complex power = first.pow(second);
Assert.assertEquals(-0.007563724861696302, power.getReal(), 1e-7);
Assert.assertEquals(0.01786136835085382, power.getImaginary(), 1e-7);
}
}
@@ -1,19 +0,0 @@
package com.baeldung.commons.math;
import org.apache.commons.math3.fraction.Fraction;
import org.junit.Assert;
import org.junit.Test;
public class FractionUnitTest {
@Test
public void whenFractionAdd_thenCorrect() {
Fraction lhs = new Fraction(1, 3);
Fraction rhs = new Fraction(2, 5);
Fraction sum = lhs.add(rhs);
Assert.assertEquals(11, sum.getNumerator());
Assert.assertEquals(15, sum.getDenominator());
}
}
@@ -1,21 +0,0 @@
package com.baeldung.commons.math;
import org.apache.commons.math3.geometry.euclidean.twod.Line;
import org.apache.commons.math3.geometry.euclidean.twod.Vector2D;
import org.junit.Assert;
import org.junit.Test;
public class GeometryUnitTest {
@Test
public void whenLineIntersection_thenCorrect() {
Line l1 = new Line(new Vector2D(0, 0), new Vector2D(1, 1), 0);
Line l2 = new Line(new Vector2D(0, 1), new Vector2D(1, 1.5), 0);
Vector2D intersection = l1.intersection(l2);
Assert.assertEquals(2, intersection.getX(), 1e-7);
Assert.assertEquals(2, intersection.getY(), 1e-7);
}
}
@@ -1,23 +0,0 @@
package com.baeldung.commons.math;
import org.apache.commons.math3.linear.*;
import org.junit.Assert;
import org.junit.Test;
public class LinearAlgebraUnitTest {
@Test
public void whenDecompositionSolverSolve_thenCorrect() {
RealMatrix a = new Array2DRowRealMatrix(new double[][] { { 2, 3, -2 }, { -1, 7, 6 }, { 4, -3, -5 } }, false);
RealVector b = new ArrayRealVector(new double[] { 1, -2, 1 }, false);
DecompositionSolver solver = new LUDecomposition(a).getSolver();
RealVector solution = solver.solve(b);
Assert.assertEquals(-0.3698630137, solution.getEntry(0), 1e-7);
Assert.assertEquals(0.1780821918, solution.getEntry(1), 1e-7);
Assert.assertEquals(-0.602739726, solution.getEntry(2), 1e-7);
}
}
@@ -1,15 +0,0 @@
package com.baeldung.commons.math;
import org.apache.commons.math3.distribution.NormalDistribution;
import org.junit.Test;
public class ProbabilitiesUnitTest {
@Test
public void whenNormalDistributionSample_thenSuccess() {
final NormalDistribution normalDistribution = new NormalDistribution(10, 3);
System.out.println(normalDistribution.sample());
}
}
@@ -1,20 +0,0 @@
package com.baeldung.commons.math;
import org.apache.commons.math3.analysis.UnivariateFunction;
import org.apache.commons.math3.analysis.solvers.BracketingNthOrderBrentSolver;
import org.apache.commons.math3.analysis.solvers.UnivariateSolver;
import org.junit.Assert;
import org.junit.Test;
public class RootFindingUnitTest {
@Test
public void whenUnivariateSolverSolver_thenCorrect() {
final UnivariateFunction function = v -> Math.pow(v, 2) - 2;
UnivariateSolver solver = new BracketingNthOrderBrentSolver(1.0e-12, 1.0e-8, 5);
double c = solver.solve(100, function, -10.0, 10.0, 0);
Assert.assertEquals(-Math.sqrt(2), c, 1e-7);
}
}
@@ -1,21 +0,0 @@
package com.baeldung.commons.math;
import org.apache.commons.math3.analysis.UnivariateFunction;
import org.apache.commons.math3.analysis.integration.SimpsonIntegrator;
import org.apache.commons.math3.analysis.integration.UnivariateIntegrator;
import org.junit.Assert;
import org.junit.Test;
public class SimpsonIntegratorUnitTest {
@Test
public void whenUnivariateIntegratorIntegrate_thenCorrect() {
final UnivariateFunction function = v -> v;
final UnivariateIntegrator integrator = new SimpsonIntegrator(1.0e-12, 1.0e-8, 1, 32);
final double i = integrator.integrate(100, function, 0, 10);
Assert.assertEquals(16 + 2d / 3d, i, 1e-7);
}
}
@@ -1,38 +0,0 @@
package com.baeldung.commons.math;
import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class StatisticsUnitTest {
private double[] values;
private DescriptiveStatistics descriptiveStatistics;
@Before
public void setUp() {
values = new double[] { 65, 51, 16, 11, 6519, 191, 0, 98, 19854, 1, 32 };
descriptiveStatistics = new DescriptiveStatistics();
for (double v : values) {
descriptiveStatistics.addValue(v);
}
}
@Test
public void whenDescriptiveStatisticsGetMean_thenCorrect() {
Assert.assertEquals(2439.8181818181815, descriptiveStatistics.getMean(), 1e-7);
}
@Test
public void whenDescriptiveStatisticsGetMedian_thenCorrect() {
Assert.assertEquals(51, descriptiveStatistics.getPercentile(50), 1e-7);
}
@Test
public void whenDescriptiveStatisticsGetStandardDeviation_thenCorrect() {
Assert.assertEquals(6093.054649651221, descriptiveStatistics.getStandardDeviation(), 1e-7);
}
}
@@ -1,73 +0,0 @@
package com.baeldung.ftp;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockftpserver.fake.FakeFtpServer;
import org.mockftpserver.fake.UserAccount;
import org.mockftpserver.fake.filesystem.DirectoryEntry;
import org.mockftpserver.fake.filesystem.FileEntry;
import org.mockftpserver.fake.filesystem.FileSystem;
import org.mockftpserver.fake.filesystem.UnixFakeFileSystem;
import java.io.File;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Collection;
import static org.assertj.core.api.Assertions.assertThat;
public class FtpClientIntegrationTest {
private FakeFtpServer fakeFtpServer;
private FtpClient ftpClient;
@Before
public void setup() throws IOException {
fakeFtpServer = new FakeFtpServer();
fakeFtpServer.addUserAccount(new UserAccount("user", "password", "/data"));
FileSystem fileSystem = new UnixFakeFileSystem();
fileSystem.add(new DirectoryEntry("/data"));
fileSystem.add(new FileEntry("/data/foobar.txt", "abcdef 1234567890"));
fakeFtpServer.setFileSystem(fileSystem);
fakeFtpServer.setServerControlPort(0);
fakeFtpServer.start();
ftpClient = new FtpClient("localhost", fakeFtpServer.getServerControlPort(), "user", "password");
ftpClient.open();
}
@After
public void teardown() throws IOException {
ftpClient.close();
fakeFtpServer.stop();
}
@Test
public void givenRemoteFile_whenListingRemoteFiles_thenItIsContainedInList() throws IOException {
Collection<String> files = ftpClient.listFiles("");
assertThat(files).contains("foobar.txt");
}
@Test
public void givenRemoteFile_whenDownloading_thenItIsOnTheLocalFilesystem() throws IOException {
ftpClient.downloadFile("/foobar.txt", "downloaded_buz.txt");
assertThat(new File("downloaded_buz.txt")).exists();
new File("downloaded_buz.txt").delete(); // cleanup
}
@Test
public void givenLocalFile_whenUploadingIt_thenItExistsOnRemoteLocation() throws URISyntaxException, IOException {
File file = new File(getClass().getClassLoader().getResource("ftp/baz.txt").toURI());
ftpClient.putFileToPath(file, "/buz.txt");
assertThat(fakeFtpServer.getFileSystem().exists("/buz.txt")).isTrue();
}
}
@@ -1,63 +0,0 @@
package com.baeldung.ftp;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockftpserver.fake.FakeFtpServer;
import org.mockftpserver.fake.UserAccount;
import org.mockftpserver.fake.filesystem.DirectoryEntry;
import org.mockftpserver.fake.filesystem.FileEntry;
import org.mockftpserver.fake.filesystem.FileSystem;
import org.mockftpserver.fake.filesystem.UnixFakeFileSystem;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLConnection;
import java.nio.file.Files;
import java.util.Collection;
import static org.assertj.core.api.Assertions.assertThat;
public class JdkFtpClientIntegrationTest {
private FakeFtpServer fakeFtpServer;
@Before
public void setup() throws IOException {
fakeFtpServer = new FakeFtpServer();
fakeFtpServer.addUserAccount(new UserAccount("user", "password", "/data"));
FileSystem fileSystem = new UnixFakeFileSystem();
fileSystem.add(new DirectoryEntry("/data"));
fileSystem.add(new FileEntry("/data/foobar.txt", "abcdef 1234567890"));
fakeFtpServer.setFileSystem(fileSystem);
fakeFtpServer.setServerControlPort(0);
fakeFtpServer.start();
}
@After
public void teardown() throws IOException {
fakeFtpServer.stop();
}
@Test
public void givenRemoteFile_whenDownloading_thenItIsOnTheLocalFilesystem() throws IOException {
String ftpUrl = String.format("ftp://user:password@localhost:%d/foobar.txt", fakeFtpServer.getServerControlPort());
URLConnection urlConnection = new URL(ftpUrl).openConnection();
InputStream inputStream = urlConnection.getInputStream();
Files.copy(inputStream, new File("downloaded_buz.txt").toPath());
inputStream.close();
assertThat(new File("downloaded_buz.txt")).exists();
new File("downloaded_buz.txt").delete(); // cleanup
}
}
@@ -1,18 +0,0 @@
package com.baeldung.text;
import org.apache.commons.text.diff.EditScript;
import org.apache.commons.text.diff.StringsComparator;
import org.junit.Assert;
import org.junit.Test;
public class DiffUnitTest {
@Test
public void whenEditScript_thenCorrect() {
StringsComparator cmp = new StringsComparator("ABCFGH", "BCDEFG");
EditScript<Character> script = cmp.getScript();
int mod = script.getModifications();
Assert.assertEquals(4, mod);
}
}
@@ -1,25 +0,0 @@
package com.baeldung.text;
import org.apache.commons.text.similarity.LongestCommonSubsequence;
import org.apache.commons.text.similarity.LongestCommonSubsequenceDistance;
import org.junit.Assert;
import org.junit.Test;
public class LongestCommonSubsequenceUnitTest {
@Test
public void whenCompare_thenCorrect() {
LongestCommonSubsequence lcs = new LongestCommonSubsequence();
int countLcs = lcs.apply("New York", "New Hampshire");
Assert.assertEquals(5, countLcs);
}
@Test
public void whenCalculateDistance_thenCorrect() {
LongestCommonSubsequenceDistance lcsd = new LongestCommonSubsequenceDistance();
int countLcsd = lcsd.apply("New York", "New Hampshire");
Assert.assertEquals(11, countLcsd);
}
}
@@ -1,24 +0,0 @@
package com.baeldung.text;
import org.apache.commons.text.StrBuilder;
import org.junit.Assert;
import org.junit.Test;
public class StrBuilderUnitTest {
@Test
public void whenReplaced_thenCorrect() {
StrBuilder strBuilder = new StrBuilder("example StrBuilder!");
strBuilder.replaceAll("example", "new");
Assert.assertEquals(new StrBuilder("new StrBuilder!"), strBuilder);
}
@Test
public void whenCleared_thenEmpty() {
StrBuilder strBuilder = new StrBuilder("example StrBuilder!");
strBuilder.clear();
Assert.assertEquals(new StrBuilder(""), strBuilder);
}
}
@@ -1,23 +0,0 @@
package com.baeldung.text;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.text.StrSubstitutor;
import org.junit.Assert;
import org.junit.Test;
public class StrSubstitutorUnitTest {
@Test
public void whenSubstituted_thenCorrect() {
Map<String, String> substitutes = new HashMap<>();
substitutes.put("name", "John");
substitutes.put("college", "University of Stanford");
String templateString = "My name is ${name} and I am a student at the ${college}.";
StrSubstitutor sub = new StrSubstitutor(substitutes);
String result = sub.replace(templateString);
Assert.assertEquals("My name is John and I am a student at the University of Stanford.", result);
}
}
@@ -1,16 +0,0 @@
package com.baeldung.text;
import org.apache.commons.text.translate.UnicodeEscaper;
import org.junit.Assert;
import org.junit.Test;
public class UnicodeEscaperUnitTest {
@Test
public void whenTranslate_thenCorrect() {
UnicodeEscaper ue = UnicodeEscaper.above(0);
String result = ue.translate("ABCD");
Assert.assertEquals("\\u0041\\u0042\\u0043\\u0044", result);
}
}
@@ -1,23 +0,0 @@
package com.baeldung.text;
import org.apache.commons.text.WordUtils;
import org.junit.Assert;
import org.junit.Test;
public class WordUtilsUnitTest {
@Test
public void whenCapitalized_thenCorrect() {
String toBeCapitalized = "to be capitalized!";
String result = WordUtils.capitalize(toBeCapitalized);
Assert.assertEquals("To Be Capitalized!", result);
}
@Test
public void whenContainsWords_thenCorrect() {
boolean containsWords = WordUtils.containsAllWords("String to search", "to", "search");
Assert.assertTrue(containsWords);
}
}
-1
View File
@@ -1 +0,0 @@
Hello World from aaa.txt!!!
-3
View File
@@ -1,3 +0,0 @@
author,title
Dan Simmons,Hyperion
Douglas Adams,The Hitchhiker's Guide to the Galaxy
1 author title
2 Dan Simmons Hyperion
3 Douglas Adams The Hitchhiker's Guide to the Galaxy
@@ -1,43 +0,0 @@
CREATE TABLE employee(
id int NOT NULL PRIMARY KEY auto_increment,
firstname varchar(255),
lastname varchar(255),
salary double,
hireddate date
);
CREATE TABLE email(
id int NOT NULL PRIMARY KEY auto_increment,
employeeid int,
address varchar(255)
);
CREATE TABLE employee_legacy(
id int NOT NULL PRIMARY KEY auto_increment,
first_name varchar(255),
last_name varchar(255),
salary double,
hired_date date
);
INSERT INTO employee (firstname,lastname,salary,hireddate) VALUES ('John', 'Doe', 10000.10, to_date('01-01-2001','dd-mm-yyyy'));
INSERT INTO employee (firstname,lastname,salary,hireddate) VALUES ('Kevin', 'Smith', 20000.20, to_date('02-02-2002','dd-mm-yyyy'));
INSERT INTO employee (firstname,lastname,salary,hireddate) VALUES ('Kim', 'Smith', 30000.30, to_date('03-03-2003','dd-mm-yyyy'));
INSERT INTO employee (firstname,lastname,salary,hireddate) VALUES ('Stephen', 'Torvalds', 40000.40, to_date('04-04-2004','dd-mm-yyyy'));
INSERT INTO employee (firstname,lastname,salary,hireddate) VALUES ('Christian', 'Reynolds', 50000.50, to_date('05-05-2005','dd-mm-yyyy'));
INSERT INTO employee_legacy (first_name,last_name,salary,hired_date) VALUES ('John', 'Doe', 10000.10, to_date('01-01-2001','dd-mm-yyyy'));
INSERT INTO employee_legacy (first_name,last_name,salary,hired_date) VALUES ('Kevin', 'Smith', 20000.20, to_date('02-02-2002','dd-mm-yyyy'));
INSERT INTO employee_legacy (first_name,last_name,salary,hired_date) VALUES ('Kim', 'Smith', 30000.30, to_date('03-03-2003','dd-mm-yyyy'));
INSERT INTO employee_legacy (first_name,last_name,salary,hired_date) VALUES ('Stephen', 'Torvalds', 40000.40, to_date('04-04-2004','dd-mm-yyyy'));
INSERT INTO employee_legacy (first_name,last_name,salary,hired_date) VALUES ('Christian', 'Reynolds', 50000.50, to_date('05-05-2005','dd-mm-yyyy'));
INSERT INTO email (employeeid,address) VALUES (1, 'john@baeldung.com');
INSERT INTO email (employeeid,address) VALUES (1, 'john@gmail.com');
INSERT INTO email (employeeid,address) VALUES (2, 'kevin@baeldung.com');
INSERT INTO email (employeeid,address) VALUES (3, 'kim@baeldung.com');
INSERT INTO email (employeeid,address) VALUES (3, 'kim@gmail.com');
INSERT INTO email (employeeid,address) VALUES (3, 'kim@outlook.com');
INSERT INTO email (employeeid,address) VALUES (4, 'stephen@baeldung.com');
INSERT INTO email (employeeid,address) VALUES (5, 'christian@gmail.com');
@@ -1 +0,0 @@
Hello World from fileTest.txt!!!
-2
View File
@@ -1,2 +0,0 @@
line 1
a second line