100 lines
3.6 KiB
Java
100 lines
3.6 KiB
Java
package com.baeldung.commons.lang3;
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import org.apache.commons.lang3.StringUtils;
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import org.junit.Test;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.assertFalse;
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public class StringUtilsTest {
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@Test
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public void givenString_whenCheckingContainsAny_thenCorrect() {
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String string = "baeldung.com";
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boolean contained1 = StringUtils.containsAny(string, 'a', 'b', 'c');
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boolean contained2 = StringUtils.containsAny(string, 'x', 'y', 'z');
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boolean contained3 = StringUtils.containsAny(string, "abc");
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boolean contained4 = StringUtils.containsAny(string, "xyz");
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assertTrue(contained1);
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assertFalse(contained2);
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assertTrue(contained3);
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assertFalse(contained4);
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}
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@Test
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public void givenString_whenCheckingContainsIgnoreCase_thenCorrect() {
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String string = "baeldung.com";
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boolean contained = StringUtils.containsIgnoreCase(string, "BAELDUNG");
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assertTrue(contained);
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}
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@Test
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public void givenString_whenCountingMatches_thenCorrect() {
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String string = "welcome to www.baeldung.com";
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int charNum = StringUtils.countMatches(string, 'w');
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int stringNum = StringUtils.countMatches(string, "com");
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assertEquals(4, charNum);
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assertEquals(2, stringNum);
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}
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@Test
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public void givenString_whenAppendingAndPrependingIfMissing_thenCorrect() {
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String string = "baeldung.com";
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String stringWithSuffix = StringUtils.appendIfMissing(string, ".com");
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String stringWithPrefix = StringUtils.prependIfMissing(string, "www.");
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assertEquals("baeldung.com", stringWithSuffix);
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assertEquals("www.baeldung.com", stringWithPrefix);
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}
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@Test
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public void givenString_whenSwappingCase_thenCorrect() {
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String originalString = "baeldung.COM";
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String swappedString = StringUtils.swapCase(originalString);
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assertEquals("BAELDUNG.com", swappedString);
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}
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@Test
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public void givenString_whenCapitalizing_thenCorrect() {
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String originalString = "baeldung";
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String capitalizedString = StringUtils.capitalize(originalString);
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assertEquals("Baeldung", capitalizedString);
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}
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@Test
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public void givenString_whenUncapitalizing_thenCorrect() {
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String originalString = "Baeldung";
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String uncapitalizedString = StringUtils.uncapitalize(originalString);
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assertEquals("baeldung", uncapitalizedString);
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}
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@Test
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public void givenString_whenReversingCharacters_thenCorrect() {
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String originalString = "baeldung";
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String reversedString = StringUtils.reverse(originalString);
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assertEquals("gnudleab", reversedString);
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}
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@Test
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public void givenString_whenReversingWithDelimiter_thenCorrect() {
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String originalString = "www.baeldung.com";
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String reversedString = StringUtils.reverseDelimited(originalString, '.');
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assertEquals("com.baeldung.www", reversedString);
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}
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@Test
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public void givenString_whenRotatingTwoPositions_thenCorrect() {
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String originalString = "baeldung";
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String rotatedString = StringUtils.rotate(originalString, 4);
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assertEquals("dungbael", rotatedString);
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}
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@Test
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public void givenTwoStrings_whenComparing_thenCorrect() {
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String tutorials = "Baeldung Tutorials";
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String courses = "Baeldung Courses";
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String diff1 = StringUtils.difference(tutorials, courses);
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String diff2 = StringUtils.difference(courses, tutorials);
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assertEquals("Courses", diff1);
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assertEquals("Tutorials", diff2);
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}
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}
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