[BAEL-16045] - Moved code to spring-security-rest-basic-auth

java-strings-2/src/test/java/com/baeldung/stringduplicates/RemoveDuplicateFromStringUnitTest.java

@@ -0,0 +1,82 @@
+package com.baeldung.stringduplicates;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+public class RemoveDuplicateFromStringUnitTest {
+
+    private final static String STR1 = "racecar";
+    private final static String STR2 = "J2ee programming";
+    private final static String STR_EMPTY = "";
+
+    private RemoveDuplicateFromString removeDuplicateFromString;
+
+    @Before
+    public void executedBeforeEach() {
+        removeDuplicateFromString = new RemoveDuplicateFromString();
+    }
+
+
+    @Test
+    public void whenUsingCharArray_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
+        String str1 = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR1);
+        String str2 = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR2);
+        String strEmpty = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR_EMPTY);
+        Assert.assertEquals("", strEmpty);
+        Assert.assertEquals("ecar", str1);
+        Assert.assertEquals("J2e poraming", str2);
+    }
+
+    @Test
+    public void whenUsingLinkedHashSet_DuplicatesShouldBeRemovedAndItKeepStringOrder() {
+        String str1 = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR1);
+        String str2 = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR2);
+
+        String strEmpty = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR_EMPTY);
+        Assert.assertEquals("", strEmpty);
+        Assert.assertEquals("race", str1);
+        Assert.assertEquals("J2e progamin", str2);
+    }
+
+    @Test
+    public void whenUsingSorting_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
+        String str1 = removeDuplicateFromString.removeDuplicatesUsingSorting(STR1);
+        String str2 = removeDuplicateFromString.removeDuplicatesUsingSorting(STR2);
+
+        String strEmpty = removeDuplicateFromString.removeDuplicatesUsingSorting(STR_EMPTY);
+        Assert.assertEquals("", strEmpty);
+        Assert.assertEquals("acer", str1);
+        Assert.assertEquals(" 2Jaegimnopr", str2);
+    }
+
+    @Test
+    public void whenUsingHashSet_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
+        String str1 = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR1);
+        String str2 = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR2);
+        String strEmpty = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR_EMPTY);
+        Assert.assertEquals("", strEmpty);
+        Assert.assertEquals("arce", str1);
+        Assert.assertEquals(" pa2regiJmno", str2);
+    }
+
+    @Test
+    public void whenUsingIndexOf_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
+        String str1 = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR1);
+        String str2 = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR2);
+        String strEmpty = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR_EMPTY);
+        Assert.assertEquals("", strEmpty);
+        Assert.assertEquals("ecar", str1);
+        Assert.assertEquals("J2e poraming", str2);
+    }
+
+    @Test
+    public void whenUsingJava8_DuplicatesShouldBeRemovedAndItKeepStringOrder() {
+        String str1 = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR1);
+        String str2 = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR2);
+        String strEmpty = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR_EMPTY);
+        Assert.assertEquals("", strEmpty);
+        Assert.assertEquals("race", str1);
+        Assert.assertEquals("J2e progamin", str2);
+    }
+}