Merge pull request #495 from GuenHamza/master
[BAEL 145] - Add mutation testing module
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slavisa-baeldung
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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" output="target/classes" path="src/main/java">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="src" output="target/test-classes" path="src/test/java">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="output" path="target/classes"/>
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</classpath>
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>mutation-testing</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.m2e.core.maven2Builder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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<nature>org.eclipse.m2e.core.maven2Nature</nature>
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</natures>
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</projectDescription>
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=========
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## Mutation Testing
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### Relevant Articles:
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- [Introduction to Mutation Testing Using the PITest Library](http://www.baeldung.com/????????)
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung</groupId>
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<artifactId>mutation-testing</artifactId>
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<version>0.1-SNAPSHOT</version>
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<name>mutation-testing</name>
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<dependencies>
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<dependency>
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<groupId>org.pitest</groupId>
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<artifactId>pitest-parent</artifactId>
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<version>1.1.10</version>
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<type>pom</type>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.9</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.pitest</groupId>
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<artifactId>pitest-maven</artifactId>
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<version>1.1.10</version>
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<configuration>
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<targetClasses>
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<param>com.baeldung.testing.mutation.*</param>
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</targetClasses>
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<targetTests>
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<param>com.baeldung.mutation.test.*</param>
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</targetTests>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>
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package com.baeldung.testing.mutation;
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public class Palindrome {
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public boolean isPalindrome(String inputString) {
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if (inputString.length() == 0) {
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return true;
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} else {
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char firstChar = inputString.charAt(0);
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char lastChar = inputString.charAt(inputString.length() - 1);
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String mid = inputString.substring(1, inputString.length() - 1);
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return (firstChar == lastChar) && isPalindrome(mid);
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}
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}
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}
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package com.baeldung.mutation.test;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertTrue;
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import org.junit.Test;
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import com.baeldung.testing.mutation.Palindrome;
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public class TestPalindrome {
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@Test
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public void acceptsPalindrome() {
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Palindrome palindromeTester = new Palindrome();
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assertTrue(palindromeTester.isPalindrome("noon"));
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}
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@Test
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public void rejectsNonPalindrome(){
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Palindrome palindromeTester = new Palindrome();
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assertFalse(palindromeTester.isPalindrome("box"));
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}
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@Test
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public void rejectsNearPalindrome(){
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Palindrome palindromeTester = new Palindrome();
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assertFalse(palindromeTester.isPalindrome("neon"));
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}
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}
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