<> ## page was renamed from JUnit = JUnit = A programmer-oriented testing framework for Java. http://junit.org/ == Annotations == * @Before , public void setUp(){} // runned before each test * @Test , public void textAbc(){} // test itself * @After , public void tearDown(){} // runned before each test * @BeforeClass * @AfterClass * @Ignore, @Ignore("Not yet implemented") == Imports == {{{#!highlight java import static org.junit.Assert.assertEquals; import org.junit.Test; import org.junit.Ignore; import org.junit.runner.RunWith; import org.junit.runners.JUnit4; }}} == Inclusion classes == http://maven.apache.org/surefire/maven-surefire-plugin/examples/inclusion-exclusion.html {{{ By default, the Surefire Plugin will automatically include all test classes with the following wildcard patterns: "**/Test*.java" - includes all of its subdirectories and all java filenames that start with "Test". "**/*Test.java" - includes all of its subdirectories and all java filenames that end with "Test". "**/*TestCase.java" - includes all of its subdirectories and all java filenames that end with "TestCase". }}} Plugin configuration in pom.xml {{{ org.apache.maven.plugins maven-surefire-plugin **/Test*.java **/*Test.java **/*TestCase.java }}} == Import methods == {{{#!highlight java import static org.junit.Assert.*; // ... assertEquals(...); }}} == Maven dependency == {{{ junit junit 4.11 }}} On a Maven project the tests may be located inside '''/src/test/java/''' so they are integrated in the main artifact generated by Maven. == Sample project junitSample1 == {{{#!highlight bash cd ~ mkdir junitSample1 cd junitSample1/ nano pom.xml mkdir -p src/main/java/org/allowed/bitarus/junitSample1 mkdir -p src/test/java/org/allowed/bitarus/junitSample1 nano src/main/java/org/allowed/bitarus/junitSample1/OddEven.java nano src/test/java/org/allowed/bitarus/junitSample1/TestOddEven.java mvn clean compile test mvn -Dtest=TestOddEven#testEven1 test # only run testEven1 }}} Structure: {{{ . |-- pom.xml |-- src | |-- main | | `-- java | | `-- org | | `-- allowed | | `-- bitarus | | `-- junitSample1 | | `-- OddEven.java | `-- test | `-- java | `-- org | `-- allowed | `-- bitarus | `-- junitSample1 | `-- TestOddEven.java }}} '''pom.xml''' {{{#!highlight xml 4.0.0 org.allowed.bitarus junitSample1 0.0.1 jar junit junit 4.11 test }}} '''OddEven.java''' {{{#!highlight java // src/main/java/org/allowed/bitarus/junitSample1/OddEven.java package org.allowed.bitarus.junitSample1; public class OddEven { public static boolean isOdd(int value){ if( value % 2 == 0) return false; else return true; } public static boolean isEven(int value){ //if( value % 2 == 0) return true; //else return false; throw new UnsupportedOperationException(); } } }}} '''TestOddEven.java''' {{{#!highlight java // src/test/java/org/allowed/bitarus/junitSample1/TestOddEven.java package org.allowed.bitarus.junitSample1.tests; import org.allowed.bitarus.junitSample1.OddEven; import static org.junit.Assert.assertEquals; import org.junit.Test; import org.junit.Ignore; import org.junit.runner.RunWith; import org.junit.runners.JUnit4; public class TestOddEven{ @Test public void testOdd1(){ assertEquals( OddEven.isOdd(1) , true ); assertEquals( OddEven.isOdd(4) , false ); } @Test public void testEven1(){ assertEquals( OddEven.isEven(4) , true ); assertEquals( OddEven.isEven(1) , false ); } } }}} == JUnit6 + JaCoCo - junitSample2 == === Steps === {{{#!highlight sh touch pom.xml mkdir -p src/main/java/org/bitarus/junitSample2/ mkdir -p src/test/java/org/bitarus/junitSample2/ touch src/main/java/org/bitarus/junitSample2/OddEven.java touch src/test/java/org/bitarus/junitSample2/TestOddEven.java }}} === pom.xml === {{{#!highlight xml 4.0.0 org.bitarus junitSample2 0.0.2 jar 1.8 1.8 org.junit.jupiter junit-jupiter-engine 6.0.2 test org.jacoco jacoco-maven-plugin 0.8.14 prepare-agent report prepare-package report }}} === OddEven.java === {{{#!highlight java // src/main/java/org/bitarus/junitSample2/OddEven.java package org.bitarus.junitSample2; public class OddEven { public static boolean isOdd(int value){ if( value % 2 == 0) return false; else return true; } public static boolean isEven(int value){ if( value % 2 == 0) return true; else return false; //throw new UnsupportedOperationException(); } } }}} === TestOddEven.java === {{{#!highlight java // src/test/java/org/bitarus/junitSample2/TestOddEven.java package org.bitarus.junitSample2.tests; import org.bitarus.junitSample2.OddEven; import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; public class TestOddEven{ @Test public void testOdd1(){ assertEquals( OddEven.isOdd(1) , true ); assertEquals( OddEven.isOdd(4) , false ); } @Test public void testEven1(){ assertEquals( true, OddEven.isEven(4) ); assertEquals( OddEven.isEven(1) , false ); } } }}}