Merge assertj -> testing (#1738)
This commit is contained in:
Grzegorz Piwowarek
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commit
e29b8394e0
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package com.baeldung.testing.assertj;
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import org.assertj.core.util.Maps;
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import org.junit.Ignore;
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import org.junit.Test;
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import java.io.ByteArrayInputStream;
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import java.io.File;
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import java.io.InputStream;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import java.util.NoSuchElementException;
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import static org.assertj.core.api.Assertions.*;
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public class AssertJCoreTest {
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@Test
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public void whenComparingReferences_thenNotEqual() throws Exception {
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Dog fido = new Dog("Fido", 5.15f);
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Dog fidosClone = new Dog("Fido", 5.15f);
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assertThat(fido).isNotEqualTo(fidosClone);
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}
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@Test
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public void whenComparingFields_thenEqual() throws Exception {
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Dog fido = new Dog("Fido", 5.15f);
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Dog fidosClone = new Dog("Fido", 5.15f);
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assertThat(fido).isEqualToComparingFieldByFieldRecursively(fidosClone);
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}
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@Test
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public void whenCheckingForElement_thenContains() throws Exception {
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List<String> list = Arrays.asList("1", "2", "3");
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assertThat(list).contains("1");
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}
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@Test
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public void whenCheckingForElement_thenMultipleAssertions() throws Exception {
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List<String> list = Arrays.asList("1", "2", "3");
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assertThat(list).isNotEmpty();
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assertThat(list).startsWith("1");
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assertThat(list).doesNotContainNull();
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assertThat(list).isNotEmpty().contains("1").startsWith("1").doesNotContainNull().containsSequence("2", "3");
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}
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@Test
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public void whenCheckingRunnable_thenIsInterface() throws Exception {
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assertThat(Runnable.class).isInterface();
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}
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@Test
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public void whenCheckingCharacter_thenIsUnicode() throws Exception {
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char someCharacter = 'c';
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assertThat(someCharacter).isNotEqualTo('a').inUnicode().isGreaterThanOrEqualTo('b').isLowerCase();
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}
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@Test
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public void whenAssigningNSEExToException_thenIsAssignable() throws Exception {
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assertThat(Exception.class).isAssignableFrom(NoSuchElementException.class);
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}
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@Test
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public void whenComparingWithOffset_thenEquals() throws Exception {
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assertThat(5.1).isEqualTo(5, withPrecision(1d));
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}
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@Test
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public void whenCheckingString_then() throws Exception {
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assertThat("".isEmpty()).isTrue();
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}
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@Test
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public void whenCheckingFile_then() throws Exception {
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final File someFile = File.createTempFile("aaa", "bbb");
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someFile.deleteOnExit();
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assertThat(someFile).exists().isFile().canRead().canWrite();
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}
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@Test
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public void whenCheckingIS_then() throws Exception {
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InputStream given = new ByteArrayInputStream("foo".getBytes());
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InputStream expected = new ByteArrayInputStream("foo".getBytes());
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assertThat(given).hasSameContentAs(expected);
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}
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@Test
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public void whenGivenMap_then() throws Exception {
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Map<Integer, String> map = Maps.newHashMap(2, "a");
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assertThat(map).isNotEmpty().containsKey(2).doesNotContainKeys(10).contains(entry(2, "a"));
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}
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@Test
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public void whenGivenException_then() throws Exception {
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Exception ex = new Exception("abc");
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assertThat(ex).hasNoCause().hasMessageEndingWith("c");
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}
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@Ignore // IN ORDER TO TEST, REMOVE THIS LINE
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@Test
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public void whenRunningAssertion_thenDescribed() throws Exception {
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Person person = new Person("Alex", 34);
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assertThat(person.getAge()).as("%s's age should be equal to 100").isEqualTo(100);
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}
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}
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@@ -0,0 +1,96 @@
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package com.baeldung.testing.assertj;
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import com.google.common.base.Optional;
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import com.google.common.collect.ArrayListMultimap;
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import com.google.common.collect.HashBasedTable;
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import com.google.common.collect.Multimap;
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import com.google.common.collect.Multimaps;
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import com.google.common.collect.Range;
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import com.google.common.collect.Table;
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import com.google.common.collect.TreeRangeMap;
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import com.google.common.io.Files;
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import org.assertj.guava.data.MapEntry;
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import org.junit.Test;
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import java.io.File;
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import java.util.HashMap;
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import java.util.HashSet;
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import static org.assertj.guava.api.Assertions.assertThat;
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import static org.assertj.guava.api.Assertions.entry;
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public class AssertJGuavaTest {
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@Test
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public void givenTwoEmptyFiles_whenComparingContent_thenEqual() throws Exception {
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final File temp1 = File.createTempFile("bael", "dung1");
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final File temp2 = File.createTempFile("bael", "dung2");
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assertThat(Files.asByteSource(temp1)).hasSize(0).hasSameContentAs(Files.asByteSource(temp2));
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}
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@Test
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public void givenMultimap_whenVerifying_thenCorrect() throws Exception {
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final Multimap<Integer, String> mmap = ArrayListMultimap.create();
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mmap.put(1, "one");
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mmap.put(1, "1");
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assertThat(mmap).hasSize(2).containsKeys(1).contains(entry(1, "one")).contains(entry(1, "1"));
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}
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@Test
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public void givenMultimaps_whenVerifyingContent_thenCorrect() throws Exception {
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final Multimap<Integer, String> mmap1 = ArrayListMultimap.create();
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mmap1.put(1, "one");
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mmap1.put(1, "1");
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mmap1.put(2, "two");
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mmap1.put(2, "2");
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final Multimap<Integer, String> mmap1_clone = Multimaps.newSetMultimap(new HashMap<>(), HashSet::new);
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mmap1_clone.put(1, "one");
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mmap1_clone.put(1, "1");
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mmap1_clone.put(2, "two");
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mmap1_clone.put(2, "2");
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final Multimap<Integer, String> mmap2 = Multimaps.newSetMultimap(new HashMap<>(), HashSet::new);
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mmap2.put(1, "one");
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mmap2.put(1, "1");
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assertThat(mmap1).containsAllEntriesOf(mmap2).containsAllEntriesOf(mmap1_clone).hasSameEntriesAs(mmap1_clone);
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}
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@Test
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public void givenOptional_whenVerifyingContent_thenShouldBeEqual() throws Exception {
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final Optional<String> something = Optional.of("something");
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assertThat(something).isPresent().extractingValue().isEqualTo("something");
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}
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@Test
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public void givenRange_whenVerifying_thenShouldBeCorrect() throws Exception {
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final Range<String> range = Range.openClosed("a", "g");
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assertThat(range).hasOpenedLowerBound().isNotEmpty().hasClosedUpperBound().contains("b");
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}
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@Test
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public void givenRangeMap_whenVerifying_thenShouldBeCorrect() throws Exception {
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final TreeRangeMap<Integer, String> map = TreeRangeMap.create();
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map.put(Range.closed(0, 60), "F");
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map.put(Range.closed(61, 70), "D");
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assertThat(map).isNotEmpty().containsKeys(0).contains(MapEntry.entry(34, "F"));
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}
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@Test
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public void givenTable_whenVerifying_thenShouldBeCorrect() throws Exception {
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final Table<Integer, String, String> table = HashBasedTable.create(2, 2);
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table.put(1, "A", "PRESENT");
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table.put(1, "B", "ABSENT");
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assertThat(table).hasRowCount(1).containsValues("ABSENT").containsCell(1, "B", "ABSENT");
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}
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}
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@@ -0,0 +1,108 @@
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package com.baeldung.testing.assertj;
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import org.junit.Test;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Optional;
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import java.util.function.Predicate;
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import static java.time.LocalDate.ofYearDay;
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import static java.util.Arrays.asList;
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import static org.assertj.core.api.Assertions.assertThat;
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public class AssertJJava8Test {
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@Test
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public void givenOptional_shouldAssert() throws Exception {
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final Optional<String> givenOptional = Optional.of("something");
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assertThat(givenOptional).isPresent().hasValue("something");
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}
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@Test
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public void givenPredicate_shouldAssert() throws Exception {
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final Predicate<String> predicate = s -> s.length() > 4;
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assertThat(predicate).accepts("aaaaa", "bbbbb").rejects("a", "b").acceptsAll(asList("aaaaa", "bbbbb")).rejectsAll(asList("a", "b"));
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}
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@Test
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public void givenLocalDate_shouldAssert() throws Exception {
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final LocalDate givenLocalDate = LocalDate.of(2016, 7, 8);
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final LocalDate todayDate = LocalDate.now();
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assertThat(givenLocalDate).isBefore(LocalDate.of(2020, 7, 8)).isAfterOrEqualTo(LocalDate.of(1989, 7, 8));
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assertThat(todayDate).isAfter(LocalDate.of(1989, 7, 8)).isToday();
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}
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@Test
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public void givenLocalDateTime_shouldAssert() throws Exception {
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final LocalDateTime givenLocalDate = LocalDateTime.of(2016, 7, 8, 12, 0);
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assertThat(givenLocalDate).isBefore(LocalDateTime.of(2020, 7, 8, 11, 2));
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}
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@Test
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public void givenLocalTime_shouldAssert() throws Exception {
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final LocalTime givenLocalTime = LocalTime.of(12, 15);
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assertThat(givenLocalTime).isAfter(LocalTime.of(1, 0)).hasSameHourAs(LocalTime.of(12, 0));
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}
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@Test
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public void givenList_shouldAssertFlatExtracting() throws Exception {
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final List<LocalDate> givenList = asList(ofYearDay(2016, 5), ofYearDay(2015, 6));
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assertThat(givenList).flatExtracting(LocalDate::getYear).contains(2015);
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}
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@Test
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public void givenList_shouldAssertFlatExtractingLeapYear() throws Exception {
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final List<LocalDate> givenList = asList(ofYearDay(2016, 5), ofYearDay(2015, 6));
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assertThat(givenList).flatExtracting(LocalDate::isLeapYear).contains(true);
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}
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@Test
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public void givenList_shouldAssertFlatExtractingClass() throws Exception {
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final List<LocalDate> givenList = asList(ofYearDay(2016, 5), ofYearDay(2015, 6));
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assertThat(givenList).flatExtracting(Object::getClass).contains(LocalDate.class);
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}
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@Test
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public void givenList_shouldAssertMultipleFlatExtracting() throws Exception {
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final List<LocalDate> givenList = asList(ofYearDay(2016, 5), ofYearDay(2015, 6));
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assertThat(givenList).flatExtracting(LocalDate::getYear, LocalDate::getDayOfMonth).contains(2015, 6);
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}
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@Test
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public void givenString_shouldSatisfy() throws Exception {
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final String givenString = "someString";
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assertThat(givenString).satisfies(s -> {
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assertThat(s).isNotEmpty();
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assertThat(s).hasSize(10);
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});
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}
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@Test
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public void givenString_shouldMatch() throws Exception {
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final String emptyString = "";
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assertThat(emptyString).matches(String::isEmpty);
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}
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@Test
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public void givenList_shouldHasOnlyOneElementSatisfying() throws Exception {
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final List<String> givenList = Arrays.asList("");
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assertThat(givenList).hasOnlyOneElementSatisfying(s -> assertThat(s).isEmpty());
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}
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}
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