How to use getInstance method of org.powermock.core.transformers.MockTransformerTestHelper class

Best Powermock code snippet using org.powermock.core.transformers.MockTransformerTestHelper.getInstance

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...58 static Collection<Object[]> createOneTransformerTestData(final Class<?> mockGateway, final Class<?> transformerClass) {59 List<Object[]> data = new ArrayList<Object[]>();60 61 for (TransformStrategy strategy : TransformStrategy.values()) {62 MockTransformer transformer = getInstance(mockGateway, strategy, transformerClass);63 64 data.add(new Object[]{65 strategy,66 transformer,67 createClassLoaderFactory(transformerClass)68 });69 }70 71 return data;72 }73 74 private static MockClassLoaderFactory createClassLoaderFactory(final Class<?> transformerClass) {75 if (AbstractJavaAssistMockTransformer.class.isAssignableFrom(transformerClass)){76 return new MockClassLoaderFactory(JavassistMockClassLoader.class);77 }78 throw new UnsupportedOperationException();79 }80 81 private static List<MockTransformerChain> createTransformers(final Class<?> mockGateway, final TransformStrategy strategy, final Class<?>... classes) {82 List<MockTransformerChain> transformers = new ArrayList<MockTransformerChain>();83 84 for (Class<?> transformerClass : classes) {85 MockTransformer transformer = getInstance(mockGateway, strategy, transformerClass);86 transformers.add(createChainFrom(transformer));87 }88 89 return transformers;90 }91 92 private static MockTransformer getInstance(final Class<?> mockGateway, final TransformStrategy strategy, final Class<?> transformerClass) {93 try {94 Constructor<?> constructor = transformerClass.getConstructor(TransformStrategy.class);95 Object instance = constructor.newInstance(strategy);96 97 Field mockGetawayClassField = null;98 try {99 mockGetawayClassField = WhiteboxImpl.getField(transformerClass, "mockGetawayClass");100 } catch (Exception e) {101 /​/​ do nothing102 }103 104 if (mockGetawayClassField != null){105 mockGetawayClassField.setAccessible(true);106 mockGetawayClassField.set(instance, mockGateway);...

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getInstance

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1MockTransformer mockTransformer = MockTransformerTestHelper.getInstance();2MockTransformer mockTransformer = MockTransformerTestHelper.getMockTransformer();3MockTransformer mockTransformer = MockTransformerTestHelper.getMockTransformer();4package org.powermock.core.transformers;5import org.powermock.core.MockTransformer;6public class MockTransformerTestHelper {7 public static MockTransformer getInstance() {8 return new MockTransformer();9 }10 public static MockTransformer getMockTransformer() {11 return new MockTransformer();12 }13}14package org.powermock.core.transformers;15import org.junit.Test;16import org.powermock.core.MockTransformer;17public class MockTransformerTestHelperTest {18 public void testGetInstance() {19 MockTransformer mockTransformer = MockTransformerTestHelper.getInstance();20 System.out.println(mockTransformer);21 }22 public void testGetMockTransformer() {23 MockTransformer mockTransformer = MockTransformerTestHelper.getMockTransformer();24 System.out.println(mockTransformer);25 }26}27void myTest() {28}29@Test(name = "myTest")30void test() {31}32@Test(name = "myTest")33void test() {34}35@Test(name = "myTest" + 1)36void test() {37}38void myTest() {39}

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getInstance

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1public class MockTransformerTestHelperTest {2 private static final String CLASS_NAME = "org.powermock.core.transformers.MockTransformerTestHelper";3 public void shouldReturnCorrectInstance() throws Exception {4 MockTransformerTestHelper helper = MockTransformerTestHelper.getInstance();5 assertThat(helper, notNullValue());6 }7 public void shouldReturnCorrectInstanceWhenClassIsLoadedByAnotherClassLoader() throws Exception {8 ClassLoader classLoader = new ClassLoader() {9 protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {10 if (name.equals(CLASS_NAME)) {11 return findClass(name);12 }13 return super.loadClass(name, resolve);14 }15 protected Class<?> findClass(String name) throws ClassNotFoundException {16 if (name.equals(CLASS_NAME)) {17 byte[] bytes = loadClassData(name);18 return defineClass(name, bytes, 0, bytes.length);19 }20 return super.findClass(name);21 }22 private byte[] loadClassData(String name) {23 InputStream inputStream = getClass().getClassLoader().getResourceAsStream(name.replaceAll("\\.", "/​") + ".class");24 ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();25 int b;26 try {27 while ((b = inputStream.read()) != -1) {28 byteArrayOutputStream.write(b);29 }30 return byteArrayOutputStream.toByteArray();31 } catch (IOException e) {32 throw new RuntimeException(e);33 }34 }35 };36 Class<?> helperClass = Class.forName(CLASS_NAME, true, classLoader);37 Method getInstanceMethod = helperClass.getMethod("getInstance");38 Object instance = getInstanceMethod.invoke(null);39 assertThat(instance, notNullValue());40 }41 private static class MockTransformerTestHelper {42 private static final MockTransformerTestHelper INSTANCE = new MockTransformerTestHelper();43 public static MockTransformerTestHelper getInstance() {44 return INSTANCE;45 }46 private MockTransformerTestHelper() {47 }48 }49}

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getInstance

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1MockTransformer mockTransformer = MockTransformerTestHelper.getInstance();2byte[] transformedClass = mockTransformer.transformClass(classLoader, className, classBeingRedefined, protectionDomain, classfileBuffer);3MockTransformer mockTransformer = MockTransformerTestHelper.getInstance();4byte[] transformedClass = mockTransformer.transformClass(classLoader, className, classBeingRedefined, protectionDomain, classfileBuffer);5MockTransformer mockTransformer = MockTransformerTestHelper.getInstance();6byte[] transformedClass = mockTransformer.transformClass(classLoader, className, classBeingRedefined, protectionDomain, classfileBuffer);7MockTransformer mockTransformer = MockTransformerTestHelper.getInstance();8byte[] transformedClass = mockTransformer.transformClass(classLoader, className, classBeingRedefined, protectionDomain, classfileBuffer);9MockTransformer mockTransformer = MockTransformerTestHelper.getInstance();

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