diff --git a/core-java-modules/core-java-11-2/pom.xml b/core-java-modules/core-java-11-2/pom.xml index 3d008f5294..5f76c0bf3b 100644 --- a/core-java-modules/core-java-11-2/pom.xml +++ b/core-java-modules/core-java-11-2/pom.xml @@ -50,6 +50,11 @@ ${junit.jupiter.version} test + + org.apache.commons + commons-lang3 + ${commons-lang3.version} + @@ -73,6 +78,7 @@ 5.7.0 3.17.2 5.11.1 + 3.12.0 \ No newline at end of file diff --git a/core-java-modules/core-java-11-2/src/test/java/com/baeldung/version/VersionUnitTest.java b/core-java-modules/core-java-11-2/src/test/java/com/baeldung/version/VersionUnitTest.java new file mode 100644 index 0000000000..fb7d5647a5 --- /dev/null +++ b/core-java-modules/core-java-11-2/src/test/java/com/baeldung/version/VersionUnitTest.java @@ -0,0 +1,48 @@ +package com.baeldung.version; + +import org.apache.commons.lang3.SystemUtils; +import org.assertj.core.api.Assertions; +import org.junit.jupiter.api.Disabled; +import org.junit.jupiter.api.Test; + +public class VersionUnitTest { + + @Test + public void givenJava_whenUsingRuntime_thenGetVersion() { + String expectedVersion = "11"; + Runtime.Version runtimeVersion = Runtime.version(); + String version = String.valueOf(runtimeVersion.version().get(0)); + Assertions.assertThat(version).isEqualTo(expectedVersion); + } + + @Test + @Disabled("Only valid for Java 8 and lower") + public void givenJava_whenUsingCommonsLang_thenGetVersion() { + int expectedVersion = 8; + String[] versionElements = SystemUtils.JAVA_SPECIFICATION_VERSION.split("\\."); + int discard = Integer.parseInt(versionElements[0]); + int version; + if (discard == 1) { + version = Integer.parseInt(versionElements[1]); + } else { + version = discard; + } + Assertions.assertThat(version).isEqualTo(expectedVersion); + } + + @Test + @Disabled("Only valid for Java 8 and lower") + public void givenJava_whenUsingSystemProp_thenGetVersion() { + int expectedVersion = 8; + String[] versionElements = System.getProperty("java.version").split("\\."); + int discard = Integer.parseInt(versionElements[0]); + int version; + if (discard == 1) { + version = Integer.parseInt(versionElements[1]); + } else { + version = discard; + } + Assertions.assertThat(version).isEqualTo(expectedVersion); + } +} +