How to use createDelegatorFromClassloader method of org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl class

Best Powermock code snippet using org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.createDelegatorFromClassloader

Source:AbstractTestSuiteChunkerImpl.java Github

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...90 public final void createTestDelegators(Class<?> testClass, List<TestChunk> chunks) throws Exception {91 for (TestChunk chunk : chunks) {92 ClassLoader classLoader = chunk.getClassLoader();93 List<Method> methodsToTest = chunk.getTestMethodsToBeExecutedByThisClassloader();94 T runnerDelegator = createDelegatorFromClassloader(classLoader, testClass, methodsToTest);95 delegates.add(runnerDelegator);96 }97 delegatesCreatedForTheseClasses.add(testClass);98 }99 protected abstract T createDelegatorFromClassloader(ClassLoader classLoader, Class<?> testClass, final List<Method> methodsToTest)100 throws Exception;101 /**102 * Get the internal test index for a junit runner delegate based on the103 * "real" original test index. For example, the test may need to run a104 * single test, for example the test with index 3. However since PowerMock105 * may have chunked the test suite to use many classloaders and junit106 * delegators the index (3) must be mapped to an internal representation for107 * the specific junit runner delegate. This is what this method does. I.e.108 * it will iterate through all junit runner delegates and see if they109 * contain the test with index 3, in the internal index of this test110 * delegator is returned.111 * 112 * @param originalTestIndex113 * The original test index as seen by the test runner....

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createDelegatorFromClassloader

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1public class DelegatingClassLoaderTest {2 public void testCreateDelegatorFromClassloader() throws Exception {3 ClassLoader classLoader = Thread.currentThread().getContextClassLoader();4 ClassLoader delegator = AbstractTestSuiteChunkerImpl.createDelegatorFromClassloader(classLoader);5 Assert.assertNotNull(delegator);6 }7}

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createDelegatorFromClassloader

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1ClassLoader classLoader = new AbstractTestSuiteChunkerImpl().createDelegatorFromClassloader(jarFile);2Class<?> clazz = classLoader.loadClass("com.example.TestClass");3Object instance = clazz.newInstance();4Method method = clazz.getDeclaredMethod("testMethod");5method.invoke(instance);6The above code works fine when I run it from my IDE (Intellij IDEA) but when I run it from the command line using the following command, it fails with the following exception:7 at org.powermock.core.classloader.MockClassLoader.loadConfiguration(MockClassLoader.java:136)8 at org.powermock.core.classloader.MockClassLoader.<init>(MockClassLoader.java:47)9 at org.powermock.core.classloader.MockClassLoader.<init>(MockClassLoader.java:41)10 at org.powermock.core.classloader.DeferSupportingClassLoader.<init>(DeferSupportingClassLoader.java:27)11 at org.powermock.core.classloader.DeferSupportingClassLoader.<init>(DeferSupportingClassLoader.java:23)12 at org.powermock.core.classloader.DeferSupportingClassLoader.<init>(DeferSupportingClassLoader.java:19)13 at org.powermock.core.classloader.DeferSupportingClassLoader.<init>(DeferSupportingClassLoader.java:15)14 at org.powermock.core.classloader.DeferSupportingClassLoader.<init>(DeferSupportingClassLoader.java:11)15 at org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.createDelegatorFromClassloader(AbstractTestSuiteChunkerImpl.java:151)16 at com.example.Main.main(Main.java:26)

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createDelegatorFromClassloader

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1public class PowerMockRunnerTest {2 public void test() throws Exception {3 ClassLoader classLoader = getClass().getClassLoader();4 AbstractTestSuiteChunkerImpl testSuiteChunker = new AbstractTestSuiteChunkerImpl();5 ClassLoader delegatorClassLoader = testSuiteChunker.createDelegatorFromClassloader(classLoader);6 PowerMockRunner runner = new PowerMockRunner(delegatorClassLoader);7 }8}9dependencies {

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createDelegatorFromClassloader

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1package org.powermock.examples.tutorial.testdelegate;2import org.powermock.core.classloader.annotations.PrepareForTest;3import org.powermock.modules.junit4.PowerMockRunner;4import org.powermock.reflect.Whitebox;5import org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl;6import org.powermock.tests.utils.impl.DelegatorClassLoader;7import org.junit.Test;8import org.junit.runner.RunWith;9import static org.junit.Assert.assertEquals;10@RunWith(PowerMockRunner.class)11@PrepareForTest( { AbstractTestSuiteChunkerImpl.class })12public class TestDelegateTest {13 public void testCreateDelegatorFromClassloader() throws Exception {14 DelegatorClassLoader delegatorClassLoader = Whitebox.invokeMethod(AbstractTestSuiteChunkerImpl.class, "createDelegatorFromClassloader", new Class<?>[] { ClassLoader.class }, new Object[] { getClass().getClassLoader() });15 Class<?> clazz = delegatorClassLoader.loadClass("org.powermock.examples.tutorial.testdelegate.TestDelegate");16 Object instance = clazz.newInstance();17 String result = (String) clazz.getMethod("testMethod").invoke(instance);18 assertEquals("testMethod", result);19 }20}

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