Merge branch 'master' of https://github.com/JonCook/tutorials

testing-modules/parallel-tests-junit/README.md

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+## Relevant Articles
+
+- [Running JUnit Tests in Parallel with Maven](https://www.baeldung.com/maven-junit-parallel-tests)

testing-modules/parallel-tests-junit/math-test-functions/pom.xml

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+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>math-test-functions</artifactId>
+	<name>math-test-functions</name>
+	<url>http://maven.apache.org</url>
+
+	<parent>
+		<groupId>com.baeldung</groupId>
+		<artifactId>parallel-tests-junit</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+	<dependencies>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>${junit.version}</version>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.22.0</version>
+				<configuration>
+					<parallel>all</parallel>
+					<threadCount>10</threadCount>
+					<threadCountSuites>2</threadCountSuites>
+					<threadCountClasses>2</threadCountClasses>
+					<threadCountMethods>6</threadCountMethods>
+					<parallelTestTimeoutInSeconds>3.5</parallelTestTimeoutInSeconds>
+					<parallelTestTimeoutForcedInSeconds>5</parallelTestTimeoutForcedInSeconds>
+					<perCoreThreadCount>true</perCoreThreadCount>
+					<includes>
+						<include>FunctionTestSuite.class</include>
+					</includes>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+</project>

testing-modules/parallel-tests-junit/math-test-functions/src/test/java/com/baeldung/ArithmeticFunctionUnitTest.java

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+package com.baeldung;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class ArithmeticFunctionUnitTest {
+
+    @Test
+    public void test_addingIntegers_returnsSum() {
+        assertEquals(22, Math.addExact(10, 12));
+    }
+
+    @Test
+    public void test_multiplyingIntegers_returnsProduct() {
+        assertEquals(120, Math.multiplyExact(10, 12));
+    }
+
+    @Test
+    public void test_subtractingIntegers_returnsDifference() {
+        assertEquals(2, Math.subtractExact(12, 10));
+    }
+
+    @Test
+    public void test_minimumInteger() {
+        assertEquals(10, Math.min(10, 12));
+    }
+}

testing-modules/parallel-tests-junit/math-test-functions/src/test/java/com/baeldung/ComparisonFunctionUnitTest.java

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+package com.baeldung;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class ComparisonFunctionUnitTest {
+
+    @Test
+    public void test_findMax() {
+        assertEquals(20, Math.max(10, 20));
+    }
+
+    @Test
+    public void test_findMin() {
+        assertEquals(10, Math.min(10, 20));
+    }
+
+}

testing-modules/parallel-tests-junit/math-test-functions/src/test/java/com/baeldung/FunctionTestSuite.java

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+package com.baeldung;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+import org.junit.runners.Suite.SuiteClasses;
+
+@RunWith(Suite.class)
+@SuiteClasses({ ComparisonFunctionUnitTest.class, ArithmeticFunctionUnitTest.class })
+public class FunctionTestSuite {
+
+}

testing-modules/parallel-tests-junit/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>parallel-tests-junit</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>parallel-tests-junit</name>
+    <packaging>pom</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>parent-java</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../../parent-java</relativePath>
+    </parent>
+    
+    <modules>
+        <module>math-test-functions</module>
+        <module>string-test-functions</module>
+    </modules>
+
+</project>

testing-modules/parallel-tests-junit/string-test-functions/pom.xml

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+<?xml version="1.0"?>
+<project
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+	xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+	<modelVersion>4.0.0</modelVersion>
+	<artifactId>string-test-functions</artifactId>
+	<name>string-test-functions</name>
+	<url>http://maven.apache.org</url>
+
+	<parent>
+		<groupId>com.baeldung</groupId>
+		<artifactId>parallel-tests-junit</artifactId>
+		<version>0.0.1-SNAPSHOT</version>
+	</parent>
+
+	<dependencies>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>${junit.version}</version>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>2.22.0</version>
+				<configuration>
+					<parallel>all</parallel>
+					<useUnlimitedThreads>true</useUnlimitedThreads>
+					<threadCountMethods>2</threadCountMethods>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+</project>

testing-modules/parallel-tests-junit/string-test-functions/src/test/java/com/baeldung/StringFunctionUnitTest.java

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+package com.baeldung;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class StringFunctionUnitTest {
+
+    @Test
+    public void test_upperCase() {
+        assertEquals("TESTCASE", "testCase".toUpperCase());
+    }
+
+    @Test
+    public void test_indexOf() {
+        assertEquals(1, "testCase".indexOf("e"));
+    }
+}