KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use throwExceptionIfConstructorWasNotFound method of org.powermock.reflect.internal.ConstructorFinder class

Best Powermock code snippet using org.powermock.reflect.internal.ConstructorFinder.throwExceptionIfConstructorWasNotFound

Source:ConstructorFinder.java

...21        }22    }23    public java.lang.reflect.Constructor findConstructor() {24        lookupPotentialConstructor();25        throwExceptionIfConstructorWasNotFound();26        return potentialConstructor.getJavaConstructor();27    }28    private void lookupPotentialConstructor() {Set<Constructor> constructors = getDeclaredConstructorsWithoutPowerMockConstructor();29        for (Constructor constructor : constructors) {30            if (constructor.canBeInvokeWith(arguments)) {31                setPotentialConstructor(constructor);32            }33            // if a constructor is found and it has varargs parameters then the constructor will be used even if34            // other constructor is matcher the given arguments. It is done, because when Argument Matchers are used35            // arguments passed to the method are null value and it's imposable to determinate whether parameters36            // match to arguments or not.37            if (isVarArgConstructorFound()){38                return;39            }40        }41    }42    private boolean isVarArgConstructorFound() {return potentialConstructor!=null && potentialConstructor.isVarArg();}43    private void setPotentialConstructor(Constructor constructor) {44        if (potentialConstructor == null) {45            potentialConstructor = constructor;46        }else{47                /*48                       * We've already found a constructor match before, this49                       * means that PowerMock cannot determine which method to50                       * expect since there are two methods with the same name51                       * and the same number of arguments but one is using52                       * wrapper types.53                       */54            throwExceptionWhenMultipleConstructorMatchesFound(new java.lang.reflect.Constructor[]{potentialConstructor.getJavaConstructor(),55                    constructor.getJavaConstructor()});56        }57    }58    public void throwExceptionWhenMultipleConstructorMatchesFound(java.lang.reflect.Constructor[] constructors) {59        if (constructors == null || constructors.length < 2) {60            throw new IllegalArgumentException("Internal error: throwExceptionWhenMultipleConstructorMatchesFound needs at least two constructors.");61        }62        StringBuilder sb = new StringBuilder();63        sb.append("Several matching constructors found, please specify the argument parameter types so that PowerMock can determine which method you're referring to.\n");64        sb.append("Matching constructors in class ").append(constructors[0].getDeclaringClass().getName())65          .append(" were:\n");66        for (java.lang.reflect.Constructor constructor : constructors) {67            sb.append(constructor.getName()).append("( ");68            final Class<?>[] parameterTypes = constructor.getParameterTypes();69            for (Class<?> paramType : parameterTypes) {70                sb.append(paramType.getName()).append(".class ");71            }72            sb.append(")\n");73        }74        throw new TooManyConstructorsFoundException(sb.toString());75    }76    private void addArgumentForNestedClass() {77        Object[] argumentsForLocalClass = new Object[arguments.length + 1];78        argumentsForLocalClass[0] = unmockedType.getEnclosingClass();79        System.arraycopy(arguments, 0, argumentsForLocalClass, 1, arguments.length);80        arguments = argumentsForLocalClass;81    }82    private boolean isNestedClass() {83        return (unmockedType.isLocalClass() || unmockedType.isAnonymousClass() || unmockedType.isMemberClass())84                       && !Modifier.isStatic(unmockedType.getModifiers());85    }86    private Set<Constructor> getDeclaredConstructorsWithoutPowerMockConstructor() {87        Set<Constructor> constructors = new HashSet<Constructor>();88        for (java.lang.reflect.Constructor<?> constructor : unmockedType.getDeclaredConstructors()) {89            if (!isPowerMockConstructor(constructor.getParameterTypes())) {90                constructors.add(new Constructor(constructor));91            }92        }93        return constructors;94    }95    private boolean isPowerMockConstructor(Class<?>[] parameterTypes) {96        return parameterTypes.length >= 197                    && parameterTypes[parameterTypes.length - 1].getName().equals(98                "org.powermock.core.IndicateReloadClass");99    }100    private void throwExceptionIfConstructorWasNotFound() {101        if (potentialConstructor == null) {102            String message = "No constructor found in class '" + WhiteboxImpl.getOriginalUnmockedType(type).getName() + "' " +103                                     "with "104                                     + "parameter types: [ " + WhiteboxImpl.getArgumentTypesAsString(arguments) + " ].";105            throw new ConstructorNotFoundException(message);106        }107    }108}...

throwExceptionIfConstructorWasNotFound

Using AI Code Generation

1public static void throwExceptionIfConstructorWasNotFound(final Class<?> clazz, final Class<?>[] parameterTypes) throws NoSuchMethodException {2    final Constructor<?> constructor = ConstructorFinder.findConstructor(clazz, parameterTypes);3    if (constructor == null) {4        throw new NoSuchMethodException("No matching constructor found for class " + clazz.getName());5    }6}7public static Constructor<?> findConstructor(final Class<?> clazz, final Class<?>[] parameterTypes) {8    return findConstructor(clazz, parameterTypes, null);9}10public static Constructor<?> findConstructor(final Class<?> clazz, final Class<?>[] parameterTypes, final Class<?>[] genericParameterTypes) {11    Constructor<?> constructor = null;12    try {13        constructor = clazz.getDeclaredConstructor(parameterTypes);14    } catch (final NoSuchMethodException e) {15    }16    if (constructor == null) {17        try {18            constructor = clazz.getConstructor(parameterTypes);19        } catch (final NoSuchMethodException e) {20        }21    }22    if (constructor == null) {23        final Constructor<?>[] constructors = clazz.getDeclaredConstructors();24        for (final Constructor<?> c : constructors) {25            if (Modifier.isPublic(c.getModifiers()) || Modifier.isProtected(c.getModifiers())) {26                if (ClassImposterizer.isAssignableFrom(parameterTypes, c.getParameterTypes())) {27                    if (genericParameterTypes == null || ClassImposterizer.isAssignableFrom(genericParameterTypes, c.getGenericParameterTypes())) {28                        constructor = c;29                        break;30                    }31                }32            }33        }34    }35    if (constructor == null) {36        final Constructor<?>[] constructors = clazz.getConstructors();37        for (final Constructor<?> c : constructors) {38            if (ClassImposterizer.isAssignableFrom(parameterTypes, c.getParameterTypes())) {39                if (genericParameterTypes == null || ClassImposterizer.isAssignableFrom(genericParameterTypes, c.getGenericParameterTypes())) {40                    constructor = c;41                    break;42                }43            }44        }45    }46    return constructor;47}48public static boolean isAssignableFrom(final Class<?>[] parameterTypes, final Class<?>[] parameterTypesToCompare) {49    if (parameterTypes.length != parameterTypesTo

throwExceptionIfConstructorWasNotFound

Using AI Code Generation

1PowerMockito.mockStatic(ConstructorFinder.class);2PowerMockito.doThrow(new ConstructorNotFoundException("constructor not found"))3    .when(ConstructorFinder.class, "throwExceptionIfConstructorWasNotFound", any(Class.class), any(Class[].class));4PowerMockito.mockConstruction(ClassUnderTest.class, (mock, context) -> {5    when(mock.getSomeString()).thenReturn("some string");6});7PowerMockito.verifyNew(ClassUnderTest.class).withArguments(anyString(), anyInt());8PowerMockito.verifyNew(ClassUnderTest.class, never()).withArguments(anyString(), anyInt());9PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments(anyString(), anyInt());10PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments("some string", 1);11PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments(anyString(), anyInt());12PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments("some string", 1);13PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments(anyString(), anyInt());14PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments("some string", 1);15PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments(anyString(), anyInt());16PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments("some string", 1);17PowerMockito.verifyNew(ClassUnderTest.class, times(1)).withArguments(anyString(), anyInt());

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.