58a536c395
* Implementing Hexagonal Architecture in java * Removing duplicates from a string * Fix for the code review feedback - removing the hexagonal architecture code - removing the methods removeDuplicatesUsingCharArray - adding some meaningful sentences to test * Fix for the code review feedback - fix for removeDuplicatesUsingCharArray - adding unit testing - adding brackets around for loops * Fix for the code review feedback * Adding remove duplicates using java 8 distinct adding assets to the unittests to test for empty strings * Checking for empty strings in unit tests Adding an if statement to check whether an empty string is passed to removeDuplicatesUsingSorting method
83 lines
3.5 KiB
Java
83 lines
3.5 KiB
Java
package com.baeldung.stringduplicates;
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import org.junit.Assert;
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import org.junit.Before;
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import org.junit.Test;
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public class RemoveDuplicateFromStringUnitTest {
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private final static String STR1 = "racecar";
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private final static String STR2 = "J2ee programming";
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private final static String STR_EMPTY = "";
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private RemoveDuplicateFromString removeDuplicateFromString;
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@Before
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public void executedBeforeEach() {
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removeDuplicateFromString = new RemoveDuplicateFromString();
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}
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@Test
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public void whenUsingCharArray_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
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String str1 = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR1);
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String str2 = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR2);
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String strEmpty = removeDuplicateFromString.removeDuplicatesUsingCharArray(STR_EMPTY);
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Assert.assertEquals("", strEmpty);
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Assert.assertEquals("ecar", str1);
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Assert.assertEquals("J2e poraming", str2);
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}
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@Test
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public void whenUsingLinkedHashSet_DuplicatesShouldBeRemovedAndItKeepStringOrder() {
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String str1 = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR1);
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String str2 = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR2);
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String strEmpty = removeDuplicateFromString.removeDuplicatesUsinglinkedHashSet(STR_EMPTY);
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Assert.assertEquals("", strEmpty);
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Assert.assertEquals("race", str1);
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Assert.assertEquals("J2e progamin", str2);
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}
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@Test
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public void whenUsingSorting_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
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String str1 = removeDuplicateFromString.removeDuplicatesUsingSorting(STR1);
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String str2 = removeDuplicateFromString.removeDuplicatesUsingSorting(STR2);
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String strEmpty = removeDuplicateFromString.removeDuplicatesUsingSorting(STR_EMPTY);
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Assert.assertEquals("", strEmpty);
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Assert.assertEquals("acer", str1);
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Assert.assertEquals(" 2Jaegimnopr", str2);
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}
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@Test
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public void whenUsingHashSet_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
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String str1 = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR1);
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String str2 = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR2);
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String strEmpty = removeDuplicateFromString.removeDuplicatesUsingHashSet(STR_EMPTY);
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Assert.assertEquals("", strEmpty);
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Assert.assertEquals("arce", str1);
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Assert.assertEquals(" pa2regiJmno", str2);
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}
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@Test
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public void whenUsingIndexOf_DuplicatesShouldBeRemovedWithoutKeepingStringOrder() {
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String str1 = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR1);
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String str2 = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR2);
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String strEmpty = removeDuplicateFromString.removeDuplicatesUsingIndexOf(STR_EMPTY);
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Assert.assertEquals("", strEmpty);
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Assert.assertEquals("ecar", str1);
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Assert.assertEquals("J2e poraming", str2);
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}
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@Test
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public void whenUsingJava8_DuplicatesShouldBeRemovedAndItKeepStringOrder() {
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String str1 = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR1);
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String str2 = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR2);
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String strEmpty = removeDuplicateFromString.removeDuplicatesUsingDistinct(STR_EMPTY);
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Assert.assertEquals("", strEmpty);
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Assert.assertEquals("race", str1);
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Assert.assertEquals("J2e progamin", str2);
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}
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}
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