Java tutorial
/** * The MIT License * * Copyright (C) 2007 Asterios Raptis * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package de.alpharogroup.lang; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.net.URISyntaxException; import java.net.URL; import java.util.List; import java.util.Properties; import java.util.Set; import org.testng.AssertJUnit; import org.testng.annotations.AfterMethod; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test; import de.alpharogroup.classes.inner.OuterClass; import de.alpharogroup.test.objects.Person; import de.alpharogroup.test.objects.PremiumMember; public class ClassUtilsTest { /** The result. */ private boolean result; @BeforeMethod public void setUp() throws Exception { } @AfterMethod public void tearDown() throws Exception { } @Test(enabled = true) public void testEqualsByClassName() { final OuterClass outerClass = new OuterClass(); final OuterClass.InnerClass innerClass1 = outerClass.new InnerClass(); final OuterClass.InnerClass innerClass2 = outerClass.new InnerClass(); final boolean actual = ClassExtensions.equalsByClassName(innerClass1.getClass(), innerClass2.getClass()); AssertJUnit.assertTrue(actual); } /** * Test method for. * * {@link de.alpharogroup.lang.ClassUtils#getClassnameWithSuffix(java.lang.Object)}. */ @Test(enabled = true) public void testGetClassnameWithSuffix() { final String expected = "ClassUtilsTest.class"; final String classname = ClassExtensions.getClassnameWithSuffix(this); this.result = expected.equals(classname); AssertJUnit.assertTrue("", this.result); } @Test public void testGetManifestURL() { String actual = ClassExtensions.getManifestUrl(Object.class); AssertJUnit.assertTrue(actual.toString().startsWith("jar:file:")); AssertJUnit.assertTrue(actual.toString().endsWith("/jre/lib/rt.jar!/META-INF/MANIFEST.MF")); actual = ClassExtensions.getManifestUrl(ClassExtensions.class); AssertJUnit.assertNull(actual); } @Test public void testGetPath() { String expected = "/java/lang/Object.class"; String actual = ClassExtensions.getPath(Object.class); AssertJUnit.assertEquals(expected, actual); expected = "/java/lang/Class.class"; actual = ClassExtensions.getPath(Class.class); AssertJUnit.assertEquals(expected, actual); } @Test(enabled = true) public void testGetResource() { final String propertiesFilename = "de/alpharogroup/lang/resources.properties"; final URL url = ClassExtensions.getResource(propertiesFilename); this.result = url != null; AssertJUnit.assertTrue("", this.result); } @Test(enabled = true) public void testGetResourceAsFileString() throws URISyntaxException { final String propertiesFilename = "de/alpharogroup/lang/resources.properties"; final File file = ClassExtensions.getResourceAsFile(propertiesFilename); this.result = file != null; AssertJUnit.assertTrue("File should not be null", this.result); AssertJUnit.assertTrue("File should exist.", file.exists()); } /** * Test method for. * * @throws IOException * Signals that an I/O exception has occurred. * {@link de.alpharogroup.lang.ClassUtils#getResourceAsStream(java.lang.String)} . */ @Test(enabled = true) public void testGetResourceAsStreamString() throws IOException { final String propertiesFilename = "de/alpharogroup/lang/resources.properties"; final InputStream is = ClassExtensions.getResourceAsStream(propertiesFilename); this.result = is != null; AssertJUnit.assertTrue("", this.result); final Properties prop = new Properties(); prop.load(is); this.result = prop.size() == 3; } @Test public void testGetResourceString() { } @Test(enabled = true) public void testGetResourceStringObject() { final String propertiesFilename = "resources.properties"; final ClassUtilsTest obj = new ClassUtilsTest(); final URL url = ClassExtensions.getResource(propertiesFilename, obj); this.result = url != null; AssertJUnit.assertTrue("", this.result); } @Test(enabled = true) public void testGetRessource() { final String propertiesFilename = "resources.properties"; final URL url = ClassExtensions.getResource(ClassUtilsTest.class, propertiesFilename); this.result = url != null; AssertJUnit.assertTrue("", this.result); } /** * Test method for * {@link de.alpharogroup.lang.ClassUtils#getResourceAsStream(java.lang.Class, java.lang.String)} * . * * @throws IOException * Signals that an I/O exception has occurred. */ @Test(enabled = false) public void testGetRessourceAsStream() throws IOException { final String propertiesFilename = "resources.properties"; final String pathFromObject = PackageUtils.getPackagePathWithSlash(this); final String path = pathFromObject + propertiesFilename; final ClassUtilsTest obj = new ClassUtilsTest(); final InputStream is = ClassExtensions.getResourceAsStream(obj.getClass(), path); this.result = is != null; AssertJUnit.assertTrue("InputStream should not be null", this.result); final Properties prop = new Properties(); prop.load(is); this.result = prop.size() == 3; AssertJUnit.assertTrue("Size of prop should be 3.", this.result); } @Test(enabled = true) public void testGetSuperClass() { Class<?> actual = ClassExtensions.getBaseClass(PremiumMember.class); AssertJUnit.assertEquals(Person.class, actual); actual = ClassExtensions.getBaseClass(Object.class); AssertJUnit.assertEquals(Object.class, actual); } @Test public void testGetURL() { final URL actual = ClassExtensions.getURL(Object.class); AssertJUnit.assertTrue(actual.toString().startsWith("jar:file:")); AssertJUnit.assertTrue(actual.toString().endsWith("/java/lang/Object.class")); } @Test(enabled = true) public void testNormalizeClassName() { String expected = "Foo$Component"; final String className = "Foo$Component$2.class"; String actual = ClassExtensions.normalizeSimpleClassName(className); AssertJUnit.assertEquals(expected, actual); final String qualifiedClassname = "x/y/z." + className; expected = "x.y.z." + expected; actual = ClassExtensions.normalizeQualifiedClassName(qualifiedClassname); AssertJUnit.assertEquals(expected, actual); } @Test(enabled = true) public void testNormalizeSimpleClassName() { final String expected = "Foo$Component"; final String className = "Foo$Component$2.class"; final String actual = ClassExtensions.normalizeSimpleClassName(className); AssertJUnit.assertEquals(expected, actual); } @Test(enabled = true) public void testScanClassesFromPackage() throws Exception, IOException { final List<File> directories = ClassExtensions.getDirectoriesFromResources("de.alpharogroup.lang", true); final Set<Class<?>> foundClasses = ClassExtensions.scanClassesFromPackage(directories.get(0), "de.alpharogroup.lang"); AssertJUnit.assertTrue("", foundClasses.contains(ClassUtilsTest.class)); Set<Class<?>> list = null; list = ClassExtensions.scanClassNames("de.alpharogroup.lang"); for (final Class<?> entry : list) { System.out.println(entry); } System.out.println("#####################################"); list = ClassExtensions.scanClassNames("org.apache.commons.beanutils"); for (final Class<?> entry : list) { System.out.println(entry); } System.out.println("#####################################"); list = ClassExtensions.scanClassNames("org.apache.commons.beanutils", true); for (final Class<?> entry : list) { System.out.println(entry); } } }