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How to use ClassWithInternalState class of org.powermock.reflect.testclasses package

Best Powermock code snippet using org.powermock.reflect.testclasses.ClassWithInternalState

Source:WhiteBoxTest.java

...37import org.powermock.reflect.testclasses.ClassWithChildThatHasInternalState;38import org.powermock.reflect.testclasses.ClassWithInterfaceConstructors;39import org.powermock.reflect.testclasses.ClassWithInterfaceConstructors.ConstructorInterface;40import org.powermock.reflect.testclasses.ClassWithInterfaceConstructors.ConstructorInterfaceImpl;41import org.powermock.reflect.testclasses.ClassWithInternalState;42import org.powermock.reflect.testclasses.ClassWithList;43import org.powermock.reflect.testclasses.ClassWithObjectConstructors;44import org.powermock.reflect.testclasses.ClassWithOverloadedConstructors;45import org.powermock.reflect.testclasses.ClassWithOverloadedMethods;46import org.powermock.reflect.testclasses.ClassWithOverriddenMethod;47import org.powermock.reflect.testclasses.ClassWithPrimitiveConstructors;48import org.powermock.reflect.testclasses.ClassWithPrivateMethods;49import org.powermock.reflect.testclasses.ClassWithSerializableState;50import org.powermock.reflect.testclasses.ClassWithSeveralMethodsWithSameName;51import org.powermock.reflect.testclasses.ClassWithSeveralMethodsWithSameNameOneWithoutParameters;52import org.powermock.reflect.testclasses.ClassWithSimpleInternalState;53import org.powermock.reflect.testclasses.ClassWithStaticAndInstanceInternalStateOfSameType;54import org.powermock.reflect.testclasses.ClassWithStaticMethod;55import org.powermock.reflect.testclasses.ClassWithUniquePrivateMethods;56import org.powermock.reflect.testclasses.ClassWithVarArgsConstructor;57import org.powermock.reflect.testclasses.ClassWithVarArgsConstructor2;58import java.io.InputStream;59import java.io.Serializable;60import java.lang.reflect.Field;61import java.lang.reflect.Method;62import java.lang.reflect.Proxy;63import java.sql.Connection;64import java.util.Set;65import static org.assertj.core.api.Java6Assertions.assertThat;66import static org.junit.Assert.assertArrayEquals;67import static org.junit.Assert.assertEquals;68import static org.junit.Assert.assertNotNull;69import static org.junit.Assert.assertNull;70import static org.junit.Assert.assertSame;71import static org.junit.Assert.assertTrue;72import static org.junit.Assert.fail;73/**74 * Tests the WhiteBox's functionality.75 */76public class WhiteBoxTest {77	@Rule78	public ExpectedException expectedException = ExpectedException.none();79	@Test80	public void testFindMethod_classContainingMethodWithNoParameters() throws Exception {81		Method expected = ClassWithSeveralMethodsWithSameNameOneWithoutParameters.class.getMethod("getDouble");82		Method actual = WhiteboxImpl.findMethodOrThrowException(83				ClassWithSeveralMethodsWithSameNameOneWithoutParameters.class, "getDouble");84		assertEquals(expected, actual);85	}86    @Test87    public void testFindMethod_classContainingOnlyMethodsWithParameters() throws Exception {88        try {89            WhiteboxImpl.findMethodOrThrowException(ClassWithSeveralMethodsWithSameName.class, "getDouble");90            fail("Should throw runtime exception!");91        } catch (RuntimeException e) {92            assertTrue("Error message did not match", e.getMessage().contains(93                    "Several matching methods found, please specify the argument parameter types"));94        }95    }96    @Test97    public void testFindMethod_noMethodFound() throws Exception {98        try {99            WhiteboxImpl.findMethodOrThrowException(ClassWithSeveralMethodsWithSameName.class, "getDouble2");100            fail("Should throw runtime exception!");101        } catch (RuntimeException e) {102            assertEquals("Error message did not match",103                         "No method found with name 'getDouble2' with parameter types: [ <none> ] in class "104                                 + ClassWithSeveralMethodsWithSameName.class.getName() + ".", e.getMessage());105        }106    }107    @Test108    public void testGetInternalState_object() throws Exception {109        ClassWithInternalState tested = new ClassWithInternalState();110        tested.increaseInteralState();111        Object internalState = Whitebox.getInternalState(tested, "internalState");112        assertTrue("InternalState should be instanceof Integer", internalState instanceof Integer);113        assertEquals(1, internalState);114    }115    @SuppressWarnings("deprecation")116    @Test117    public void testGetInternalState_parmaterizedType() throws Exception {118        ClassWithInternalState tested = new ClassWithInternalState();119        tested.increaseInteralState();120        int internalState = Whitebox.getInternalState(tested, "internalState", tested.getClass(), int.class);121        assertEquals(1, internalState);122    }123    @Test124    public void testSetInternalState() throws Exception {125        ClassWithInternalState tested = new ClassWithInternalState();126        tested.increaseInteralState();127        Whitebox.setInternalState(tested, "anotherInternalState", 2);128        assertEquals(2, tested.getAnotherInternalState());129    }130    @Test131    public void testSetInternalStateWithMultipleValues() throws Exception {132        ClassWithInternalState tested = new ClassWithInternalState();133        final ClassWithPrivateMethods classWithPrivateMethods = new ClassWithPrivateMethods();134        final String stringState = "someStringState";135        Whitebox.setInternalState(tested, classWithPrivateMethods, stringState);136        assertEquals(stringState, Whitebox.getInternalState(tested, String.class));137        assertSame(classWithPrivateMethods, Whitebox.getInternalState(tested, ClassWithPrivateMethods.class));138    }139    @Test140    public void testSetInternalState_superClass() throws Exception {141        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();142        tested.increaseInteralState();143        Whitebox.setInternalState(tested, "anotherInternalState", 2, ClassWithInternalState.class);144        assertEquals(2, tested.getAnotherInternalState());145    }146    @Test147    public void testGetInternalState_superClass_object() throws Exception {148        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();149        Object internalState = Whitebox.getInternalState(tested, "internalState", ClassWithInternalState.class);150        assertEquals(0, internalState);151    }152    @SuppressWarnings("deprecation")153    @Test154    public void testGetInternalState_superClass_parameterized() throws Exception {155        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();156        int internalState = Whitebox.getInternalState(tested, "internalState", ClassWithInternalState.class, int.class);157        assertEquals(0, internalState);158    }159    @Test160    public void testInvokePrivateMethod_primtiveType() throws Exception {161        assertTrue(Whitebox.<Boolean>invokeMethod(new ClassWithPrivateMethods(), "primitiveMethod", 8.2));162    }163    @Test164    public void testInvokePrivateMethod_primtiveType_withoutSpecifyingMethodName() throws Exception {165        assertTrue((Boolean) Whitebox.invokeMethod(new ClassWithUniquePrivateMethods(), 8.2d, 8.4d));166    }167    /**168     * This test actually invokes the <code>finalize</code> method of169     * <code>java.lang.Object</code> because we supply no method name and no170     * arguments. <code>finalize</code> is thus the first method found and it'll171     * be executed.172     *173     * @throws Exception174     */175    @Test176    @Ignore("Invokes different methods on PC and MAC (hashCode on mac)")177    public void testInvokePrivateMethod_withoutSpecifyingMethodName_noArguments() throws Exception {178        assertNull(Whitebox.invokeMethod(new ClassWithUniquePrivateMethods()));179    }180    @Test181    public void testInvokePrivateMethod_withoutSpecifyingMethodName_assertThatNullWorks() throws Exception {182        assertTrue(Whitebox.invokeMethod(new ClassWithUniquePrivateMethods(), 8.2d, 8.3d, null) instanceof Object);183    }184    /**185     * This test should actually fail since equals takes an Object and we pass186     * in a primitive wrapped as a Double. Thus PowerMock cannot determine187     * whether to invoke the single argument method defined in188     * {@link ClassWithUniquePrivateMethods} or the189     * {@link Object#equals(Object)} method because we could potentially invoke190     * equals with a Double.191     */192    @Test(expected = TooManyMethodsFoundException.class)193    public void testInvokePrivateMethod_withoutSpecifyingMethodName_onlyOneArgument() throws Exception {194        Whitebox.invokeMethod(new ClassWithUniquePrivateMethods(), 8.2d);195    }196    @Test(expected = TooManyMethodsFoundException.class)197    public void testInvokeStaticPrivateMethod_withoutSpecifyingMethodName_onlyOneArgument() throws Exception {198        assertTrue((Boolean) Whitebox.invokeMethod(ClassWithUniquePrivateMethods.class, 8.2d));199    }200    @Test201    public void testInvokePrivateMethod_primtiveType_Wrapped() throws Exception {202        assertTrue((Boolean) Whitebox.invokeMethod(new ClassWithPrivateMethods(), "primitiveMethod", new Double(8.2)));203    }204    @Test205    public void testInvokePrivateMethod_wrappedType() throws Exception {206        assertTrue((Boolean) Whitebox.invokeMethod(new ClassWithPrivateMethods(), "wrappedMethod", new Double(8.2)));207    }208    @Test209    public void testInvokePrivateMethod_wrappedType_primitive() throws Exception {210        assertTrue((Boolean) Whitebox.invokeMethod(new ClassWithPrivateMethods(), "wrappedMethod", 8.2));211    }212    @Test213    public void testMethodWithPrimitiveIntAndString_primitive() throws Exception {214        assertEquals("My int value is: " + 8, Whitebox.invokeMethod(new ClassWithPrivateMethods(),215                                                                    "methodWithPrimitiveIntAndString", 8, "My int value is: "));216    }217    @Test218    public void testMethodWithPrimitiveIntAndString_Wrapped() throws Exception {219        assertEquals("My int value is: " + 8, Whitebox.invokeMethod(new ClassWithPrivateMethods(),220                                                                    "methodWithPrimitiveIntAndString", Integer.valueOf(8), "My int value is: "));221    }222    @Test223    public void testMethodWithPrimitiveAndWrappedInt_primtive_wrapped() throws Exception {224        assertEquals(17, Whitebox.invokeMethod(new ClassWithPrivateMethods(), "methodWithPrimitiveAndWrappedInt",225                                               new Class[]{int.class, Integer.class}, 9, Integer.valueOf(8)));226    }227    @Test228    public void testStaticState() {229        int expected = 123;230        Whitebox.setInternalState(ClassWithInternalState.class, "staticState", expected);231        assertEquals(expected, ClassWithInternalState.getStaticState());232        assertEquals(expected, Whitebox.getInternalState(ClassWithInternalState.class, "staticState"));233    }234	@Test235	public void testStaticFinalPrimitiveState() {236		Whitebox.setInternalState(ClassWithInternalState.class, "staticFinalIntState", 123);237                assertEquals(123, Whitebox.getInternalState(ClassWithInternalState.class, "staticFinalIntState"));238	}239	@Test240	public void testStaticFinalStringState() throws NoSuchFieldException {241		Whitebox.setInternalState(ClassWithInternalState.class, "staticFinalStringState", "Brand new string");242                assertEquals("Brand new string", Whitebox.getInternalState(ClassWithInternalState.class, "staticFinalStringState"));243	}244	@Test245	public void testStaticFinalObject() throws NoSuchFieldException {246		int modifiersBeforeSet = ClassWithInternalState.class.getDeclaredField("staticFinalIntegerState").getModifiers();247		Integer newValue = ClassWithInternalState.getStaticFinalIntegerState() + 1;248		Whitebox.setInternalState(ClassWithInternalState.class, "staticFinalIntegerState", newValue);249		int modifiersAfterSet = ClassWithInternalState.class.getDeclaredField("staticFinalIntegerState").getModifiers();250		assertEquals(newValue, ClassWithInternalState.getStaticFinalIntegerState());251		assertEquals(modifiersBeforeSet, modifiersAfterSet);252	}253    /**254     * Verifies that the http://code.google.com/p/powermock/issues/detail?id=6255     * is fixed.256     */257    @Test(expected = IllegalArgumentException.class)258    public void testInvokeMethodWithNullParameter() throws Exception {259        Whitebox.invokeMethod(null, "method");260    }261    @Test(expected = IllegalArgumentException.class)262    public void testInvokeConstructorWithNullParameter() throws Exception {263        Whitebox.invokeConstructor(null, "constructor");264    }265    @Test(expected = IllegalArgumentException.class)266    public void testGetInternalWithNullParameter() throws Exception {267        Whitebox.getInternalState(null, "state");268    }269    @Test(expected = IllegalArgumentException.class)270    public void testSetInternalWithNullParameter() throws Exception {271        Whitebox.setInternalState(null, "state", new Object());272    }273    @Test274    public void testInstantiateVarArgsOnlyConstructor() throws Exception {275        final String argument1 = "argument1";276        final String argument2 = "argument2";277        ClassWithVarArgsConstructor instance = Whitebox.invokeConstructor(ClassWithVarArgsConstructor.class, argument1,278                                                                          argument2);279        String[] strings = instance.getStrings();280        assertEquals(2, strings.length);281        assertEquals(argument1, strings[0]);282        assertEquals(argument2, strings[1]);283    }284    @Test285    public void testInstantiateVarArgsOnlyConstructor_noArguments() throws Exception {286        ClassWithVarArgsConstructor instance = Whitebox.invokeConstructor(ClassWithVarArgsConstructor.class);287        String[] strings = instance.getStrings();288        assertEquals(0, strings.length);289    }290    @Test291    public void testInvokeVarArgsMethod_multipleValues() throws Exception {292        ClassWithPrivateMethods tested = new ClassWithPrivateMethods();293        assertEquals(6, Whitebox.invokeMethod(tested, "varArgsMethod", 1, 2, 3));294    }295    @Test296    public void testInvokeVarArgsMethod_noArguments() throws Exception {297        ClassWithPrivateMethods tested = new ClassWithPrivateMethods();298        assertEquals(0, Whitebox.invokeMethod(tested, "varArgsMethod"));299    }300    @Test301    public void testInvokeVarArgsMethod_oneArgument() throws Exception {302        ClassWithPrivateMethods tested = new ClassWithPrivateMethods();303        assertEquals(4, Whitebox.invokeMethod(tested, "varArgsMethod", 2));304    }305    @Test306    public void testInvokeVarArgsMethod_invokeVarArgsWithOneArgument() throws Exception {307        ClassWithPrivateMethods tested = new ClassWithPrivateMethods();308        assertEquals(1, Whitebox.invokeMethod(tested, "varArgsMethod", new Class<?>[]{int[].class}, 1));309    }310    @Test311    public void testInvokePrivateMethodWithASubTypeOfTheArgumentType() throws Exception {312        ClassWithPrivateMethods tested = new ClassWithPrivateMethods();313        ClassWithChildThatHasInternalState argument = new ClassWithChildThatHasInternalState();314        assertSame(argument, Whitebox.invokeMethod(tested, "methodWithObjectArgument", argument));315    }316    @Test317    public void testInvokePrivateMethodWithAClassArgument() throws Exception {318        ClassWithPrivateMethods tested = new ClassWithPrivateMethods();319        assertEquals(ClassWithChildThatHasInternalState.class, Whitebox.invokeMethod(tested, "methodWithClassArgument",320                                                                                     ClassWithChildThatHasInternalState.class));321    }322    @Test323    public void testSetInternalStateInChildClassWithoutSpecifyingTheChildClass() throws Exception {324        final int value = 22;325        final String fieldName = "internalState";326        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState() {327        };328        Whitebox.setInternalState(tested, fieldName, value);329        assertEquals(value, Whitebox.getInternalState(tested, fieldName));330    }331    @Test332    public void testSetInternalStateInClassAndMakeSureThatTheChildClassIsNotAffectedEvenThoughItHasAFieldWithTheSameName()333            throws Exception {334        final int value = 22;335        final String fieldName = "anotherInternalState";336        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState() {337        };338        Whitebox.setInternalState(tested, fieldName, value);339        assertEquals(value, Whitebox.getInternalState(tested, fieldName));340        assertEquals(-1, Whitebox.getInternalState(tested, fieldName, ClassWithInternalState.class));341    }342    @Test(expected = IllegalArgumentException.class)343    public void testSetInternalStateWithInvalidArgumentType() throws Exception {344        final int value = 22;345        final String fieldName = "internalState";346        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState() {347        };348        Whitebox.setInternalState(tested, fieldName, new Object());349        assertEquals(value, Whitebox.getInternalState(tested, fieldName));350    }351    @Test(expected = IllegalArgumentException.class)352    public void testSetInternalStateWithNull() throws Exception {353        final int value = 22;354        final String fieldName = "internalState";355        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState() {356        };357        Whitebox.setInternalState(tested, fieldName, (Object) null);358        assertEquals(value, Whitebox.getInternalState(tested, fieldName));359    }360    @Test361    public void testSetAndGetInternalStateBasedOnFieldType() throws Exception {362        final int value = 22;363        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();364        Whitebox.setInternalState(tested, int.class, value);365        assertEquals(value, (int) Whitebox.getInternalState(tested, int.class));366        assertEquals(value, Whitebox.getInternalState(tested, "anotherInternalState"));367        assertEquals(value, Whitebox.getInternalState(tested, "anotherInternalState",368                                                      ClassWithChildThatHasInternalState.class));369    }370    @Test371    public void testSetAndGetInternalStateAtASpecificPlaceInTheHierarchyBasedOnFieldType() throws Exception {372        final int value = 22;373        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();374        Whitebox.setInternalState(tested, int.class, value, ClassWithInternalState.class);375        assertEquals(42, (int) Whitebox.getInternalState(tested, int.class));376        assertEquals(value, (int) Whitebox.getInternalState(tested, int.class, ClassWithInternalState.class));377        assertEquals(value, Whitebox.getInternalState(tested, "staticState", ClassWithInternalState.class));378    }379    @Test380    public void testSetInternalStateBasedOnObjectType() throws Exception {381        final String value = "a string";382        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();383        Whitebox.setInternalState(tested, value);384        assertEquals(value, Whitebox.getInternalState(tested, String.class));385    }386    @SuppressWarnings("deprecation")387    @Test388    public void testSetInternalStateBasedOnObjectTypeWhenArgumentIsAPrimitiveType() throws Exception {389        final int value = 22;390        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();391        Whitebox.setInternalState(tested, value);392        assertEquals((Integer) value, Whitebox.getInternalState(tested, "anotherInternalState",393                                                                ClassWithChildThatHasInternalState.class, Integer.class));394    }395    @Test396    public void testSetInternalStateBasedOnObjectTypeWhenArgumentIsAPrimitiveTypeUsingGenerics() throws Exception {397        final int value = 22;398        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();399        Whitebox.setInternalState(tested, value);400        assertEquals((Integer) value, Whitebox.<Integer>getInternalState(tested, "anotherInternalState",401                                                                         ClassWithChildThatHasInternalState.class));402    }403    @Test404    public void testSetInternalStateBasedOnObjectTypeAtASpecificPlaceInTheClassHierarchy() throws Exception {405        final String value = "a string";406        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();407        Whitebox.setInternalState(tested, (Object) value, ClassWithInternalState.class);408        assertEquals(value, Whitebox.getInternalState(tested, "finalString"));409    }410    @Test411    public void testSetInternalStateBasedOnObjectTypeAtASpecificPlaceInTheClassHierarchyForPrimitiveType()412            throws Exception {413        final long value = 31;414        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();415        Whitebox.setInternalState(tested, value, ClassWithInternalState.class);416        assertEquals(value, tested.getInternalLongState());417    }418    @Test419    public void testSetInternalStateBasedOnObjectTypeAtANonSpecificPlaceInTheClassHierarchyForPrimitiveType()420            throws Exception {421        final long value = 31;422        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();423        Whitebox.setInternalState(tested, value);424        assertEquals(value, tested.getInternalLongState());425    }426    @Test427    public void testSetInternalMultipleOfSameTypeOnSpecificPlaceInHierarchy() throws Exception {428        final int value = 31;429        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();430        try {431            Whitebox.setInternalState(tested, value, ClassWithInternalState.class);432            fail("should throw TooManyFieldsFoundException!");433        } catch (TooManyFieldsFoundException e) {434            assertEquals("Two or more fields matching type int.", e.getMessage());435        }436    }437    @Test438    public void testSetInternalMultipleOfSameType() throws Exception {439        final int value = 31;440        ClassWithInternalState tested = new ClassWithInternalState();441        try {442            Whitebox.setInternalState(tested, value);443            fail("should throw TooManyFieldsFoundException!");444        } catch (TooManyFieldsFoundException e) {445            assertEquals("Two or more fields matching type int.", e.getMessage());446        }447    }448    @Test449    public void testSetInternalStateBasedOnObjectSubClassTypeAtASpecificPlaceInTheClassHierarchy() throws Exception {450        final ClassWithPrivateMethods value = new ClassWithPrivateMethods() {451        };452        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState();453        Whitebox.setInternalState(tested, value, ClassWithInternalState.class);454        assertSame(value, tested.getClassWithPrivateMethods());455    }456    @Test457    public void testSetInternalStateBasedOnObjectSubClassType() throws Exception {458        final ClassWithPrivateMethods value = new ClassWithPrivateMethods() {459        };460        ClassWithChildThatHasInternalState tested = new ClassWithChildThatHasInternalState() {461        };462        Whitebox.setInternalState(tested, value);463        assertSame(value, tested.getClassWithPrivateMethods());464    }465    @Test466    public void testGetAllInstanceFields() throws Exception {467        Set<Field> allFields = Whitebox.getAllInstanceFields(new ClassWithChildThatHasInternalState());468        assertEquals(8, allFields.size());469    }470    @Test471    public void testGetAllInstanceFieldsOnClass() {472        Set<Field> allFields = Whitebox.getAllInstanceFields(ClassWithChildThatHasInternalState.class);473        assertEquals(8, allFields.size());474    }475    @Test476    public void testGetAllStaticFields_assertNoFieldsFromParent() throws Exception {477        Set<Field> allFields = Whitebox.getAllStaticFields(ClassWithChildThatHasInternalState.class);478        assertEquals(0, allFields.size());479    }480	@Test481	public void testGetAllStaticFields() throws Exception {482		Set<Field> allFields = Whitebox.getAllStaticFields(ClassWithInternalState.class);483		assertEquals(4, allFields.size());484	}485    @Test486    public void testMethodWithNoMethodName_noMethodFound() throws Exception {487        try {488            Whitebox.getMethod(ClassWithInternalState.class, int.class);489            fail("Should throw MethodNotFoundException");490        } catch (MethodNotFoundException e) {491            assertEquals(492                    "No method was found with parameter types: [ int ] in class org.powermock.reflect.testclasses.ClassWithInternalState.",493                    e.getMessage());494        }495    }496    @Test497    public void testMethodWithNoMethodName_tooManyMethodsFound() throws Exception {498        try {499            Whitebox.getMethod(ClassWithSeveralMethodsWithSameName.class);500            fail("Should throw TooManyMethodsFoundException");501        } catch (TooManyMethodsFoundException e) {502            assertTrue(e503                               .getMessage()504                               .contains(505                                       "Several matching methods found, please specify the method name so that PowerMock can determine which method you're referring to"));506        }507    }508    @Test509    public void testMethodWithNoMethodName_ok() throws Exception {510        final Method method = Whitebox.getMethod(ClassWithSeveralMethodsWithSameName.class, double.class);511        assertEquals(method, ClassWithSeveralMethodsWithSameName.class.getDeclaredMethod("getDouble", double.class));512    }513    @Test514    public void testGetTwoMethodsWhenNoneOfThemAreFound() throws Exception {515        try {516            Whitebox.getMethods(ClassWithSeveralMethodsWithSameName.class, "notFound1", "notFound2");517        } catch (MethodNotFoundException e) {518            assertEquals(519                    "No methods matching the name(s) notFound1 or notFound2 were found in the class hierarchy of class org.powermock.reflect.testclasses.ClassWithSeveralMethodsWithSameName.",520                    e.getMessage());521        }522    }523    @Test524    public void testGetThreeMethodsWhenNoneOfThemAreFound() throws Exception {525        try {526            Whitebox.getMethods(ClassWithSeveralMethodsWithSameName.class, "notFound1", "notFound2", "notFound3");527        } catch (MethodNotFoundException e) {528            assertEquals(529                    "No methods matching the name(s) notFound1, notFound2 or notFound3 were found in the class hierarchy of class org.powermock.reflect.testclasses.ClassWithSeveralMethodsWithSameName.",530                    e.getMessage());531        }532    }533    /**534     * Asserts that <a535     * href="http://code.google.com/p/powermock/issues/detail?id=118">issue536     * 118</a> is fixed. Thanks to cemcatik for finding this.537     */538    @Test539    public void testInvokeConstructorWithBothNormalAndVarArgsParameter() throws Exception {540        ClassWithVarArgsConstructor2 instance = Whitebox.invokeConstructor(ClassWithVarArgsConstructor2.class, "first",541                                                                           "second", "third");542        assertArrayEquals(new String[]{"first", "second", "third"}, instance.getStrings());543    }544    /**545     * Asserts that <a546     * href="http://code.google.com/p/powermock/issues/detail?id=118">issue547     * 118</a> is fixed. Thanks to cemcatik for finding this.548     */549    @Test550    public void testInvokeMethodWithBothNormalAndVarArgsParameter() throws Exception {551        ClassWithPrivateMethods tested = new ClassWithPrivateMethods();552        assertEquals(4, Whitebox.invokeMethod(tested, "varArgsMethod2", 1, 2, 3));553    }554    @Test555    public void testInvokePrivateMethodWithArrayArgument() throws Exception {556        ClassWithPrivateMethods tested = new ClassWithPrivateMethods();557        assertEquals("Hello World", Whitebox.invokeMethod(tested, "evilConcatOfStrings", new Object[]{new String[]{558                "Hello ", "World"}}));559    }560    @Test561    public void testSetInternalStateFromContext_allStatesInSameOneContext() throws Exception {562        ClassWithSimpleInternalState tested = new ClassWithSimpleInternalState();563        MyContext context = new MyContext();564        Whitebox.setInternalStateFromContext(tested, context);565        assertEquals(context.getMyStringState(), tested.getSomeStringState());566        assertEquals(context.getMyIntState(), tested.getSomeIntState());567    }568    @Test569    public void testSetInternalStateFromContext_statesInDifferentContext() throws Exception {570        ClassWithSimpleInternalState tested = new ClassWithSimpleInternalState();571        MyIntContext myIntContext = new MyIntContext();572        MyStringContext myStringContext = new MyStringContext();573        Whitebox.setInternalStateFromContext(tested, myIntContext, myStringContext);574        assertEquals(myStringContext.getMyStringState(), tested.getSomeStringState());575        assertEquals(myIntContext.getSimpleIntState(), tested.getSomeIntState());576    }577    @Test578    public void testSetInternalStateFromContext_contextIsAClass() throws Exception {579        ClassWithSimpleInternalState tested = new ClassWithSimpleInternalState();580        Whitebox.setInternalStateFromContext(tested, MyContext.class);581        assertEquals(Whitebox.getInternalState(MyContext.class, long.class), (Long) tested.getSomeStaticLongState());582    }583    @Test584    public void testSetInternalStateFromContext_contextIsAClassAndAnInstance() throws Exception {585        ClassWithSimpleInternalState tested = new ClassWithSimpleInternalState();586        MyContext myContext = new MyContext();587        Whitebox.setInternalStateFromContext(tested, MyContext.class, myContext);588        assertEquals(myContext.getMyStringState(), tested.getSomeStringState());589        assertEquals(myContext.getMyIntState(), tested.getSomeIntState());590        assertEquals((Long) myContext.getMyLongState(), (Long) tested.getSomeStaticLongState());591    }592    @Test593    public void testSetInternalStateFromContext_contextHasOneInstanceAndOneStaticFieldOfSameType_onlyInstanceContext()594            throws Exception {595        ClassWithStaticAndInstanceInternalStateOfSameType.reset();596        ClassWithStaticAndInstanceInternalStateOfSameType tested = new ClassWithStaticAndInstanceInternalStateOfSameType();597        OneInstanceAndOneStaticFieldOfSameTypeContext context = new OneInstanceAndOneStaticFieldOfSameTypeContext();598        Whitebox.setInternalStateFromContext(tested, context);599        assertEquals(context.getMyStringState(), tested.getStringState());600        assertEquals("Static String state", tested.getStaticStringState());601    }602    @Test603    public void testSetInternalStateFromContext_contextHasOneInstanceAndOneStaticFieldOfSameType_onlyStaticContext()604            throws Exception {605        ClassWithStaticAndInstanceInternalStateOfSameType.reset();606        ClassWithStaticAndInstanceInternalStateOfSameType tested = new ClassWithStaticAndInstanceInternalStateOfSameType();607        Whitebox.setInternalStateFromContext(tested, OneInstanceAndOneStaticFieldOfSameTypeContext.class);608        assertEquals(OneInstanceAndOneStaticFieldOfSameTypeContext.getMyStaticStringState(), tested609                                                                                                     .getStaticStringState());610        assertEquals("String state", tested.getStringState());611    }612    @Test613    public void setInternalStateFromInstanceContextCopiesMatchingContextFieldsToTargetObjectByDefault()614            throws Exception {615        ClassWithSimpleInternalState tested = new ClassWithSimpleInternalState();616        InstanceFieldsNotInTargetContext fieldsNotInTargetContext = new InstanceFieldsNotInTargetContext();617        assertThat(tested.getSomeStringState()).isNotEqualTo(fieldsNotInTargetContext.getString());618        Whitebox.setInternalStateFromContext(tested, fieldsNotInTargetContext);619        assertEquals(tested.getSomeStringState(), fieldsNotInTargetContext.getString());620    }621    @Test622    public void setInternalStateFromInstanceContextCopiesMatchingContextFieldsToTargetObjectWhenSpecifyingMatchingStrategy()623            throws Exception {624        ClassWithSimpleInternalState tested = new ClassWithSimpleInternalState();625        InstanceFieldsNotInTargetContext fieldsNotInTargetContext = new InstanceFieldsNotInTargetContext();626        assertThat(tested.getSomeStringState()).isNotEqualTo(fieldsNotInTargetContext.getString());627        Whitebox.setInternalStateFromContext(tested, fieldsNotInTargetContext, FieldMatchingStrategy.MATCHING);628        assertEquals(tested.getSomeStringState(), fieldsNotInTargetContext.getString());629    }630    @Test(expected = FieldNotFoundException.class)631    public void setInternalStateFromInstanceContextThrowsExceptionWhenContextContainsFieldsNotDefinedInTargetObjectWhenSpecifyingStrictStrategy()632            throws Exception {633        ClassWithSimpleInternalState tested = new ClassWithSimpleInternalState();634        InstanceFieldsNotInTargetContext fieldsNotInTargetContext = new InstanceFieldsNotInTargetContext();635        assertThat(tested.getSomeStringState()).isNotEqualTo(fieldsNotInTargetContext.getString());636        Whitebox.setInternalStateFromContext(tested, fieldsNotInTargetContext, FieldMatchingStrategy.STRICT);637        assertEquals(tested.getSomeStringState(), fieldsNotInTargetContext.getString());638    }639    @Test640    public void setInternalStateFromClassContextCopiesMatchingContextFieldsToTargetObjectByDefault() throws Exception {641        long state = ClassWithSimpleInternalState.getLong();642        try {643            assertThat(state).isNotEqualTo(ClassFieldsNotInTargetContext.getLong());644            Whitebox.setInternalStateFromContext(ClassWithSimpleInternalState.class,645                                                 ClassFieldsNotInTargetContext.class);646            assertEquals(ClassFieldsNotInTargetContext.getLong(), ClassWithSimpleInternalState.getLong());647        } finally {648            // Restore the state649            ClassWithSimpleInternalState.setLong(state);650        }651    }652    @Test653    public void setInternalStateFromClassContextCopiesMatchingContextFieldsToTargetObjectWhenSpecifyingMatchingStrategy()654            throws Exception {655        long state = ClassWithSimpleInternalState.getLong();656        try {657            assertThat(state).isNotEqualTo(ClassFieldsNotInTargetContext.getLong());658            Whitebox.setInternalStateFromContext(ClassWithSimpleInternalState.class,659                                                 ClassFieldsNotInTargetContext.class, FieldMatchingStrategy.MATCHING);660            assertEquals(ClassFieldsNotInTargetContext.getLong(), ClassWithSimpleInternalState.getLong());661        } finally {662            // Restore the state663            ClassWithSimpleInternalState.setLong(state);664        }665    }666    @Test(expected = FieldNotFoundException.class)667    public void setInternalStateFromClassContextThrowsExceptionWhenContextContainsFieldsNotDefinedInTargetObjectWhenSpecifyingStrictStrategy()668            throws Exception {669        long state = ClassWithSimpleInternalState.getLong();670        try {671            assertThat(state).isNotEqualTo(ClassFieldsNotInTargetContext.getLong());672            Whitebox.setInternalStateFromContext(ClassWithSimpleInternalState.class,673                                                 ClassFieldsNotInTargetContext.class, FieldMatchingStrategy.STRICT);674        } finally {675            // Restore the state676            ClassWithSimpleInternalState.setLong(state);677        }678    }679    @Test680    public void assertThatErrorMessageIsCorrectWhenNoInstanceFieldFound() throws Exception {681        ClassWithInternalState classWithInternalState = new ClassWithInternalState();682        try {683            Whitebox.setInternalState(classWithInternalState, (byte) 23);684            fail("Should throw a FieldNotFoundException.");685        } catch (FieldNotFoundException e) {686            assertEquals(687                    "No instance field assignable from \"java.lang.Byte\" could be found in the class hierarchy of "688                            + ClassWithInternalState.class.getName() + ".", e.getMessage());689        }690    }691    @Test692    public void assertThatErrorMessageIsCorrectWhenNoStaticFieldFound() throws Exception {693        try {694            Whitebox.setInternalState(ClassWithInternalState.class, (byte) 23);695            fail("Should throw a FieldNotFoundException.");696        } catch (FieldNotFoundException e) {697            assertEquals("No static field assignable from \"java.lang.Byte\" could be found in the class hierarchy of "698                                 + ClassWithInternalState.class.getName() + ".", e.getMessage());699        }700    }701    @Test702    public void assertThatWhiteboxWorksWithGenericsWhenSpecifyingFieldName() throws Exception {703        ClassWithInternalState object = new ClassWithInternalState();704        Set<String> state = Whitebox.getInternalState(object, "genericState");705        assertSame(object.getGenericState(), state);706    }707    @Test708    public void whiteboxGetMethodWithCorrectMethodNameButWrongParameterTypeReturnsErrorMessageReflectingTheWrongParameter()709            throws Exception {710        try {711            Whitebox.getMethod(ClassWithInternalState.class, "methodWithArgument", String.class, InputStream.class);712            fail("Should throw MethodNotFoundException");713        } catch (MethodNotFoundException e) {714            assertEquals(715                    "No method found with name 'methodWithArgument' with parameter types: [ java.lang.String, java.io.InputStream ] in class org.powermock.reflect.testclasses.ClassWithInternalState.",716                    e.getMessage());717        }718    }719    @Test720    public void whiteboxSetInternalStateWorksOnArraysWhenDefiningMethodName() {721        ClassWithInternalState tested = new ClassWithInternalState();722        final String[] expected = new String[]{"string1", "string2"};723        Whitebox.setInternalState(tested, "stringArray", expected);724        assertArrayEquals(expected, tested.getStringArray());725    }726    @Test727    public void whiteboxSetInternalStateWorksOnArraysWhenNotDefiningMethodName() {728        ClassWithInternalState tested = new ClassWithInternalState();729        final String[] expected = new String[]{"string1", "string2"};730        Whitebox.setInternalState(tested, expected);731        assertArrayEquals(expected, tested.getStringArray());732    }733    @Test734    public void getInternalStateThrowsIAEWhenInstanceIsNull() {735        try {736            Whitebox.getInternalState(null, String.class);737            fail("Should throw IllegalArgumentException");738        } catch (IllegalArgumentException e) {739            assertEquals("The object containing the field cannot be null", e.getMessage());740        }741    }742    @Test743    public void getInternalStateSupportsObjectArrayWhenSUTContainsSerializable() {744        ClassWithSerializableState tested = new ClassWithSerializableState();745        tested.setSerializable(new Serializable() {746            private static final long serialVersionUID = -1850246005852779087L;747        });748        tested.setObjectArray(new Object[0]);749        assertNotNull(Whitebox.getInternalState(tested, Object[].class));750    }751    @Test752    public void getInternalStateUsesAssignableToWhenLookingForObject() {753        ClassWithList tested = new ClassWithList();754        assertNotNull(Whitebox.getInternalState(tested, Object.class));755    }756    @Test(expected = TooManyFieldsFoundException.class)757    public void getInternalStateThrowsTooManyFieldsFoundWhenTooManyFieldsMatchTheSuppliedType() {758        ClassWithInternalState tested = new ClassWithInternalState();759        assertNotNull(Whitebox.getInternalState(tested, Object.class));760    }761    @Test762    public void invokeMethodInvokesOverridenMethods() throws Exception {763        assertTrue(Whitebox.<Boolean>invokeMethod(new ClassWithOverriddenMethod(), 2.0d));764    }765    @Test(expected = IllegalArgumentException.class)766    public void newInstanceThrowsIAEWhenClassIsAbstract() throws Exception {767        Whitebox.newInstance(AbstractClass.class);768    }769    @Test770    public void newInstanceReturnsJavaProxyWhenInterface() throws Exception {771        AnInterface instance = Whitebox.newInstance(AnInterface.class);772        assertTrue(Proxy.isProxyClass(instance.getClass()));773    }774    @Test775    public void newInstanceCreatesAnEmptyArrayWhenClassIsArray() throws Exception {776        byte[] newInstance = Whitebox.newInstance(byte[].class);777        assertEquals(0, newInstance.length);778    }779    @Test(expected = IllegalArgumentException.class)780    public void invokeMethodSupportsNullParameters() throws Exception {781        ClassWithAMethod classWithAMethod = new ClassWithAMethod();782        Connection connection = null;783        Whitebox.invokeMethod(classWithAMethod, "connect", connection);784    }785    @Test(expected = MethodNotFoundException.class)786    public void invokeOverriddenMethodWithNullParameterThrowsIAE() throws Exception {787        ClassWithOverloadedMethods tested = new ClassWithOverloadedMethods();788        Child child = null;789        Whitebox.invokeMethod(tested, "overloaded", 2, child);790    }791    @Test792    public void canPassNullParamToPrivateStaticMethod() throws Exception {793        assertEquals("hello", Whitebox.invokeMethod(ClassWithStaticMethod.class, "aStaticMethod", (Object[])null));794    }795    @Test796    public void canPassNullParamToPrivateStaticMethodWhenDefiningParameterTypes() throws Exception {797        assertEquals("hello", Whitebox.invokeMethod(ClassWithStaticMethod.class, "aStaticMethod", new Class<?>[]{byte[].class}, (Object[])null));798    }799    @Test800    public void canPassNullPrimitiveArraysToAPrivateStaticMethod() throws Exception {801        assertEquals("hello", Whitebox.invokeMethod(ClassWithStaticMethod.class, "aStaticMethod", (byte[]) null));802    }803    @Test804    public void canPassMultipleNullValuesToStaticMethod() throws Exception {805        assertEquals("null null", Whitebox.invokeMethod(ClassWithStaticMethod.class, "anotherStaticMethod", (Object) null, (byte[]) null));806    }807    @Test808    public void testObjectConstructors() throws Exception {809        String name = "objectConstructor";810        ClassWithObjectConstructors instance = Whitebox.invokeConstructor(ClassWithObjectConstructors.class,811                                                                          name);812        assertEquals(instance.getName(), name);813    }814    @Test815    public void testInterfaceConstructors() throws Exception {816        ConstructorInterface param = new ConstructorInterfaceImpl("constructorInterfaceSomeValue");817        ClassWithInterfaceConstructors instance = Whitebox.invokeConstructor(ClassWithInterfaceConstructors.class,818                                                                             param);819        assertEquals(instance.getValue(), param.getValue());820    }821    @Test822    public void testPrimitiveConstructorsArgumentBoxed() throws Exception {823        Long arg = 1L;824        ClassWithPrimitiveConstructors instance = Whitebox.invokeConstructor(ClassWithPrimitiveConstructors.class,825                                                                             arg);826        assertEquals(instance.getValue(), arg.longValue());827    }828    @Test829    public void testOverloadedConstructors() throws Exception {830        String name = "overloadedConstructor";831        ClassWithOverloadedConstructors instance = Whitebox.invokeConstructor(ClassWithOverloadedConstructors.class,832                                                                              true, name);833        assertEquals(instance.getName(), name);834        assertTrue(instance.isBool());835        assertThat(instance.isBool1()).isFalse();836    }837    @Test838    @Ignore("Reflection and direct call returns different values.")839    public void testFinalState() {840        ClassWithInternalState state = new ClassWithInternalState();841        String expected = "changed";842        Whitebox.setInternalState(state, "finalString", expected);843        assertEquals(expected, state.getFinalString());844        assertEquals(expected, Whitebox.getInternalState(state, "finalString"));845    }846}...

ClassWithInternalState

Using AI Code Generation

1@PrepareForTest(ClassWithInternalState.class)2public class ClassWithInternalStateTest {3    public void shouldGetInternalState() {4        ClassWithInternalState classWithInternalState = new ClassWithInternalState();5        classWithInternalState.setInternalState("Hello world!");6        String internalState = Whitebox.getInternalState(classWithInternalState, "internalState");7        assertEquals("Hello world!", internalState);8    }9    public void shouldSetInternalState() {10        ClassWithInternalState classWithInternalState = new ClassWithInternalState();11        Whitebox.setInternalState(classWithInternalState, "internalState", "Hello world!");12        assertEquals("Hello world!", classWithInternalState.getInternalState());13    }14}15package org.powermock.reflect.testclasses;16public class ClassWithInternalState {17    private String internalState;18    public String getInternalState() {19        return internalState;20    }21    public void setInternalState(String internalState) {22        this.internalState = internalState;23    }24}25package org.powermock.reflect.test;26import org.junit.Test;27import org.junit.runner.RunWith;28import org.power

ClassWithInternalState

Using AI Code Generation

1ClassWithInternalState classWithInternalState = new ClassWithInternalState();2classWithInternalState.setInternalState("test");3assertEquals("test", classWithInternalState.getInternalState());4ClassWithInternalState classWithInternalState = new ClassWithInternalState();5classWithInternalState.setInternalState("test");6assertEquals("test", classWithInternalState.getInternalState());7ClassWithInternalState classWithInternalState = new ClassWithInternalState();8classWithInternalState.setInternalState("test");9assertEquals("test", classWithInternalState.getInternalState());10ClassWithInternalState classWithInternalState = new ClassWithInternalState();11classWithInternalState.setInternalState("test");12assertEquals("test", classWithInternalState.getInternalState());13ClassWithInternalState classWithInternalState = new ClassWithInternalState();14classWithInternalState.setInternalState("test");15assertEquals("test", classWithInternalState.getInternalState());16ClassWithInternalState classWithInternalState = new ClassWithInternalState();17classWithInternalState.setInternalState("test");18assertEquals("test", classWithInternalState.getInternalState());19ClassWithInternalState classWithInternalState = new ClassWithInternalState();20classWithInternalState.setInternalState("test");21assertEquals("test", classWithInternalState.getInternalState());22ClassWithInternalState classWithInternalState = new ClassWithInternalState();23classWithInternalState.setInternalState("test");24assertEquals("test", classWithInternalState.getInternalState());

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