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LANG-1752 seperated test cases of Strings from StringUtils #1279

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LANG-1752 seperated test cases of Strings from StringUtils #1279

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4f5dea0
LANG-1752 seperated test cases of Strings from StringUtils
MSaifAsif Sep 26, 2024
3438824
Bringing back existing test cases
MSaifAsif Sep 26, 2024
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173 changes: 173 additions & 0 deletions src/test/java/org/apache/commons/lang3/StringsContainsTest.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.lang3;

import org.junit.jupiter.api.Test;
import org.junitpioneer.jupiter.DefaultLocale;

import java.util.Locale;

import static org.apache.commons.lang3.Supplementary.*;
import static org.junit.jupiter.api.Assertions.*;

/**
* Unit tests {@link Strings} - Contains methods
*/
public class StringsContainsTest extends AbstractLangTest {
@Test
public void testContains_Char() {
assertFalse(Strings.CS.contains("", null));
assertFalse(Strings.CS.contains(null, null));
}

@Test
public void testContains_String() {
assertFalse(Strings.CS.contains(null, null));
assertFalse(Strings.CS.contains(null, ""));
assertFalse(Strings.CS.contains(null, "a"));
assertFalse(Strings.CS.contains("", null));
assertTrue(Strings.CS.contains("", ""));
assertFalse(Strings.CS.contains("", "a"));
assertTrue(Strings.CS.contains("abc", "a"));
assertTrue(Strings.CS.contains("abc", "b"));
assertTrue(Strings.CS.contains("abc", "c"));
assertTrue(Strings.CS.contains("abc", "abc"));
assertFalse(Strings.CS.contains("abc", "z"));
}

/**
* See https://www.oracle.com/technical-resources/articles/javase/supplementary.html
*/
@Test
public void testContains_StringWithBadSupplementaryChars() {
// Test edge case: 1/2 of a (broken) supplementary char
assertFalse(Strings.CS.contains(CharUSuppCharHigh, CharU20001));
assertFalse(Strings.CS.contains(CharUSuppCharLow, CharU20001));
assertFalse(Strings.CS.contains(CharU20001, CharUSuppCharHigh));
assertTrue(Strings.CS.contains(CharU20001, CharUSuppCharLow));
assertTrue(Strings.CS.contains(CharU20001 + CharUSuppCharLow + "a", "a"));
assertTrue(Strings.CS.contains(CharU20001 + CharUSuppCharHigh + "a", "a"));
}

/**
* See https://www.oracle.com/technical-resources/articles/javase/supplementary.html
*/
@Test
public void testContains_StringWithSupplementaryChars() {
assertTrue(Strings.CS.contains(CharU20000 + CharU20001, CharU20000));
assertTrue(Strings.CS.contains(CharU20000 + CharU20001, CharU20001));
assertTrue(Strings.CS.contains(CharU20000, CharU20000));
assertFalse(Strings.CS.contains(CharU20000, CharU20001));
}

@Test
public void testContainsAny_StringStringArray() {
assertFalse(Strings.CS.containsAny(null, (String[]) null));
assertFalse(Strings.CS.containsAny(null, new String[0]));
assertFalse(Strings.CS.containsAny(null, new String[] { "hello" }));
assertFalse(Strings.CS.containsAny("", (String[]) null));
assertFalse(Strings.CS.containsAny("", new String[0]));
assertFalse(Strings.CS.containsAny("", new String[] { "hello" }));
assertFalse(Strings.CS.containsAny("hello, goodbye", (String[]) null));
assertFalse(Strings.CS.containsAny("hello, goodbye", new String[0]));
assertTrue(Strings.CS.containsAny("hello, goodbye", new String[] { "hello", "goodbye" }));
assertTrue(Strings.CS.containsAny("hello, goodbye", new String[] { "hello", "Goodbye" }));
assertFalse(Strings.CS.containsAny("hello, goodbye", new String[] { "Hello", "Goodbye" }));
assertFalse(Strings.CS.containsAny("hello, goodbye", new String[] { "Hello", null }));
assertFalse(Strings.CS.containsAny("hello, null", new String[] { "Hello", null }));
// Javadoc examples:
assertTrue(Strings.CS.containsAny("abcd", "ab", null));
assertTrue(Strings.CS.containsAny("abcd", "ab", "cd"));
assertTrue(Strings.CS.containsAny("abc", "d", "abc"));
}

@Test
public void testContainsAnyIgnoreCase_StringStringArray() {
assertFalse(Strings.CI.containsAny(null, (String[]) null));
assertFalse(Strings.CI.containsAny(null, new String[0]));
assertFalse(Strings.CI.containsAny(null, new String[] { "hello" }));
assertFalse(Strings.CI.containsAny("", (String[]) null));
assertFalse(Strings.CI.containsAny("", new String[0]));
assertFalse(Strings.CI.containsAny("", new String[] { "hello" }));
assertFalse(Strings.CI.containsAny("hello, goodbye", (String[]) null));
assertFalse(Strings.CI.containsAny("hello, goodbye", new String[0]));
assertTrue(Strings.CI.containsAny("hello, goodbye", new String[] { "hello", "goodbye" }));
assertTrue(Strings.CI.containsAny("hello, goodbye", new String[] { "hello", "Goodbye" }));
assertTrue(Strings.CI.containsAny("hello, goodbye", new String[] { "Hello", "Goodbye" }));
assertTrue(Strings.CI.containsAny("hello, goodbye", new String[] { "Hello", null }));
assertTrue(Strings.CI.containsAny("hello, null", new String[] { "Hello", null }));
// Javadoc examples:
assertTrue(Strings.CI.containsAny("abcd", "ab", null));
assertTrue(Strings.CI.containsAny("abcd", "ab", "cd"));
assertTrue(Strings.CI.containsAny("abc", "d", "abc"));
}

@DefaultLocale(language = "de", country = "DE")
@Test
public void testContainsIgnoreCase_LocaleIndependence() {
final Locale[] locales = { Locale.ENGLISH, new Locale("tr"), Locale.getDefault() };

final String[][] tdata = { { "i", "I" }, { "I", "i" }, { "\u03C2", "\u03C3" }, { "\u03A3", "\u03C2" }, { "\u03A3", "\u03C3" }, };

final String[][] fdata = { { "\u00DF", "SS" }, };

for (final Locale testLocale : locales) {
Locale.setDefault(testLocale);
for (int j = 0; j < tdata.length; j++) {
assertTrue(Strings.CI.contains(tdata[j][0], tdata[j][1]), Locale.getDefault() + ": " + j + " " + tdata[j][0] + " " + tdata[j][1]);
}
for (int j = 0; j < fdata.length; j++) {
assertFalse(Strings.CI.contains(fdata[j][0], fdata[j][1]), Locale.getDefault() + ": " + j + " " + fdata[j][0] + " " + fdata[j][1]);
}
}
}

@Test
public void testContainsIgnoreCase_StringString() {
assertFalse(Strings.CI.contains(null, null));

// Null tests
assertFalse(Strings.CI.contains(null, ""));
assertFalse(Strings.CI.contains(null, "a"));
assertFalse(Strings.CI.contains(null, "abc"));

assertFalse(Strings.CI.contains("", null));
assertFalse(Strings.CI.contains("a", null));
assertFalse(Strings.CI.contains("abc", null));

// Match len = 0
assertTrue(Strings.CI.contains("", ""));
assertTrue(Strings.CI.contains("a", ""));
assertTrue(Strings.CI.contains("abc", ""));

// Match len = 1
assertFalse(Strings.CI.contains("", "a"));
assertTrue(Strings.CI.contains("a", "a"));
assertTrue(Strings.CI.contains("abc", "a"));
assertFalse(Strings.CI.contains("", "A"));
assertTrue(Strings.CI.contains("a", "A"));
assertTrue(Strings.CI.contains("abc", "A"));

// Match len > 1
assertFalse(Strings.CI.contains("", "abc"));
assertFalse(Strings.CI.contains("a", "abc"));
assertTrue(Strings.CI.contains("xabcz", "abc"));
assertFalse(Strings.CI.contains("", "ABC"));
assertFalse(Strings.CI.contains("a", "ABC"));
assertTrue(Strings.CI.contains("xabcz", "ABC"));
}
}
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