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How to use generateReplicaClassName method of org.powermock.core.ClassReplicaCreator class

Best Powermock code snippet using org.powermock.core.ClassReplicaCreator.generateReplicaClassName

Source:ClassReplicaCreator.java

...39        }40        ClassPool classpool = ClassPool.getDefault();41        final String originalClassName = clazz.getName();42        CtClass originalClassAsCtClass = null;43        final CtClass newClass = classpool.makeClass(generateReplicaClassName(clazz));44        try {45            originalClassAsCtClass = classpool.get(originalClassName);46            CtMethod[] declaredMethods = originalClassAsCtClass.getDeclaredMethods();47            for (CtMethod ctMethod : declaredMethods) {48                final String code = getReplicaMethodDelegationCode(clazz, ctMethod, null);49                CtNewMethod.make(ctMethod.getReturnType(), ctMethod.getName(), ctMethod.getParameterTypes(), ctMethod.getExceptionTypes(),50                        code, newClass);51            }5253            return newClass.toClass(this.getClass().getClassLoader(), this.getClass().getProtectionDomain());54        } catch (Exception e) {55            throw new RuntimeException(e);56        }57    }5859    /**60     * Create a class that is a replica of type <code>T</code>. To allow for61     * partial mocking all calls to non-mocked methods will be delegated to the62     * <code>delegator</code>.63     * 64     * @param <T>65     *            The type of the replica class to be created.66     * @param delegator67     *            The delegator object that will be invoked to allow for partial68     *            mocking.69     * @return A replica class that can be used to duck-type an instance.70     */71    @SuppressWarnings("unchecked")72    public <T> Class<T> createInstanceReplica(T delegator) {73        if (delegator == null) {74            throw new IllegalArgumentException("delegator cannot be null");75        }76        final Class<T> clazz = (Class<T>) delegator.getClass();77        ClassPool classpool = ClassPool.getDefault();78        final String originalClassName = clazz.getName();79        CtClass originalClassAsCtClass = null;80        final CtClass newClass = classpool.makeClass(generateReplicaClassName(clazz));81        try {82            originalClassAsCtClass = classpool.get(originalClassName);8384            copyFields(originalClassAsCtClass, newClass);85            addDelegatorField(delegator, newClass);8687            CtMethod[] declaredMethods = originalClassAsCtClass.getDeclaredMethods();88            for (CtMethod ctMethod : declaredMethods) {89                @SuppressWarnings("unused")90				final String code = getReplicaMethodDelegationCode(delegator.getClass(), ctMethod, POWERMOCK_INSTANCE_DELEGATOR_FIELD_NAME);91                // CtMethod make = CtNewMethod.make(ctMethod.getReturnType(),92                // ctMethod.getName(), ctMethod.getParameterTypes(), ctMethod93                // .getExceptionTypes(), code, newClass);94                CtMethod make2 = CtNewMethod.copy(ctMethod, newClass, null);95                // make2.setBody(code);96                newClass.addMethod(make2);97            }9899            CtConstructor[] declaredConstructors = originalClassAsCtClass.getDeclaredConstructors();100            for (CtConstructor ctConstructor : declaredConstructors) {101                CtConstructor copy = CtNewConstructor.copy(ctConstructor, newClass, null);102                newClass.addConstructor(copy);103            }104            return newClass.toClass(this.getClass().getClassLoader(), this.getClass().getProtectionDomain());105        } catch (Exception e) {106            throw new RuntimeException(e);107        }108    }109110    /**111     * Add a field to the replica class that holds the instance delegator. I.e.112     * if we're creating a instance replica of <code>java.lang.Long</code> this113     * methods adds a new field of type <code>delegator.getClass()</code> to the114     * replica class.115     */116    private <T> void addDelegatorField(T delegator, final CtClass replicaClass) throws CannotCompileException {117        CtField f = CtField.make(String.format("private %s %s = null;", delegator.getClass().getName(),118                POWERMOCK_INSTANCE_DELEGATOR_FIELD_NAME), replicaClass);119        replicaClass.addField(f);120    }121122    private <T> String generateReplicaClassName(final Class<T> clazz) {123        return "replica." + clazz.getName() + "$$PowerMock" + counter.getAndIncrement();124    }125126    private void copyFields(CtClass originalClassAsCtClass, final CtClass newClass) throws CannotCompileException, NotFoundException {127        CtField[] declaredFields = originalClassAsCtClass.getDeclaredFields();128        CtField[] undeclaredFields = originalClassAsCtClass.getFields();129        Set<CtField> allFields = new HashSet<CtField>();130        for (CtField ctField : declaredFields) {131            allFields.add(ctField);132        }133        for (CtField ctField : undeclaredFields) {134            allFields.add(ctField);135        }136
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generateReplicaClassName

Using AI Code Generation

1import org.powermock.core.ClassReplicaCreator;2import org.powermock.core.classloader.MockClassLoader;3import org.powermock.core.classloader.annotations.PowerMockIgnore;4import org.powermock.core.classloader.annotations.PrepareForTest;5import org.powermock.modules.junit4.PowerMockRunner;6import org.powermock.modules.junit4.PowerMockRunnerDelegate;7import org.powermock.reflect.Whitebox;8import org.powermock.reflect.internal.WhiteboxImpl;9import org.powermock.tests.utils.impl.JavaVersion;10import org.powermock.tests.utils.impl.PowerMockTestRunnerDelegateImpl;11import org.powermock.tests.utils.impl.TestFramework;12import org.powermock.tests.utils.impl.TestFrameworkImpl;13import org.powermock.tests.utils.impl.Versions;14import org.powermock.tests.utils.impl.VersionsImpl;15import org.junit.Before;16import org.junit.Test;17import org.junit.runner.RunWith;18import static org.junit.Assert.*;19@RunWith(PowerMockRunner.class)20@PowerMockRunnerDelegate(PowerMockTestRunnerDelegateImpl.class)21@PowerMockIgnore("javax.management.*")22@PrepareForTest({ ClassReplicaCreator.class, MockClassLoader.class })23public class ClassReplicaCreatorTest {24    private ClassReplicaCreator classReplicaCreator;25    private MockClassLoader mockClassLoader;26    private TestFramework testFramework;27    private Versions versions;28    private JavaVersion javaVersion;29    private String className;30    private String packageName;31    private String classFullName;32    private String classFullNameWithDollar;33    private String classFullNameWithDot;34    private String classFullNameWithSlash;35    private String classFullNameWithDotAndSlash;36    private String classFullNameWithDollarAndSlash;37    private String classFullNameWithDotAndSlashAndDollar;38    private String classFullNameWithDotAndSlashAndDot;39    private String classFullNameWithDotAndSlashAndDollarAndDot;40    private String classFullNameWithDotAndSlashAndDollarAndDotAndDollar;41    private String classFullNameWithDotAndSlashAndDollarAndDotAndDollarAndSlash;42    private String classFullNameWithDotAndSlashAndDollarAndDotAndDollarAndSlashAndDollar;43    private String classFullNameWithDotAndSlashAndDollarAndDotAndDollarAndSlashAndDollarAndDot;44    private String classFullNameWithDotAndSlashAndDollarAndDotAndDollarAndSlashAndDollarAndDotAndDollar;

generateReplicaClassName

Using AI Code Generation

1public class ClassReplicaCreatorTest {2    private static final String CLASS_NAME = "org.powermock.core.ClassReplicaCreatorTest$TestClass";3    private static final String REPLICATED_CLASS_NAME = "org.powermock.core.ClassReplicaCreatorTest$TestClass$$Replica";4    private static final String CLASS_NAME_WITHOUT_PACKAGE = "TestClass";5    private static final String REPLICATED_CLASS_NAME_WITHOUT_PACKAGE = "TestClass$$Replica";6    public void testGenerateReplicaClassName() throws Exception {7        ClassReplicaCreator classReplicaCreator = new ClassReplicaCreator();8        String replicatedClassName = classReplicaCreator.generateReplicaClassName(CLASS_NAME);9        assertEquals(REPLICATED_CLASS_NAME, replicatedClassName);10    }11    public void testGenerateReplicaClassNameWithoutPackage() throws Exception {12        ClassReplicaCreator classReplicaCreator = new ClassReplicaCreator();13        String replicatedClassName = classReplicaCreator.generateReplicaClassName(CLASS_NAME_WITHOUT_PACKAGE);14        assertEquals(REPLICATED_CLASS_NAME_WITHOUT_PACKAGE, replicatedClassName);15    }16    public void testCreateReplicaClass() throws Exception {17        ClassReplicaCreator classReplicaCreator = new ClassReplicaCreator();18        Class<?> replicaClass = classReplicaCreator.createReplicaClass(TestClass.class);19        assertEquals(REPLICATED_CLASS_NAME, replicaClass.getName());20    }21    public void testCreateReplicaClassWithClassloader() throws Exception {22        ClassReplicaCreator classReplicaCreator = new ClassReplicaCreator();23        Class<?> replicaClass = classReplicaCreator.createReplicaClass(TestClass.class, getClass().getClassLoader());24        assertEquals(REPLICATED_CLASS_NAME, replicaClass.getName());25    }26    public void testCreateReplicaClassWithClassloaderAndReplicaClassName() throws Exception {27        ClassReplicaCreator classReplicaCreator = new ClassReplicaCreator();28        Class<?> replicaClass = classReplicaCreator.createReplicaClass(TestClass.class, getClass().getClassLoader(), REPLICATED_CLASS_NAME);29        assertEquals(REPLICATED_CLASS_NAME, replicaClass.getName());30    }31    public static class TestClass {32    }33}

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