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

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

Source: ConstructorFinder.java

...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() {...

getDeclaredConstructorsWithoutPowerMockConstructor

Using AI Code Generation

1public class ConstructorFinderTest {2    public void testGetDeclaredConstructorsWithoutPowerMockConstructor() throws Exception {3        Constructor<?>[] constructors = ConstructorFinder.getDeclaredConstructorsWithoutPowerMockConstructor(Foo.class);4        assertThat(constructors.length, is(1));5        assertThat(constructors[0].getParameterTypes().length, is(0));6    }7    public void testGetDeclaredConstructorsWithoutPowerMockConstructorWhenNoConstructors() throws Exception {8        Constructor<?>[] constructors = ConstructorFinder.getDeclaredConstructorsWithoutPowerMockConstructor(Bar.class);9        assertThat(constructors.length, is(0));10    }11    public void testGetDeclaredConstructorsWithoutPowerMockConstructorWhenPrivateConstructor() throws Exception {12        Constructor<?>[] constructors = ConstructorFinder.getDeclaredConstructorsWithoutPowerMockConstructor(Baz.class);13        assertThat(constructors.length, is(1));14        assertThat(constructors[0].getParameterTypes().length, is(0));15    }16    public void testGetDeclaredConstructorsWithoutPowerMockConstructorWhenNoPowerMockConstructor() throws Exception {17        Constructor<?>[] constructors = ConstructorFinder.getDeclaredConstructorsWithoutPowerMockConstructor(Qux.class);18        assertThat(constructors.length, is(1));19        assertThat(constructors[0].getParameterTypes().length, is(2));20        assertThat(constructors[0].getParameterTypes()[0], is(String.class));21        assertThat(constructors[0].getParameterTypes()[1], is(int.class));22    }23    private static class Foo {24        public Foo() {25        }26        public Foo(String foo) {27        }28    }29    private static class Bar {30    }31    private static class Baz {32        private Baz() {33        }34    }35    private static class Qux {36        public Qux() {37        }38        public Qux(String foo, int bar) {39        }40        public Qux(String foo, int bar, String baz) {41        }42    }43}44The testGetDeclaredConstructorsWithoutPowerMockConstructor() method verifies that the getDeclaredConstructorsWithoutPowerMockConstructor() method returns a constructor with zero arguments. The testGetDeclaredConstructorsWithoutPowerMockConstructorWhenNoConstructors() method verifies that the getDeclaredConstructorsWithoutPowerMockConstructor() method returns an empty array when there are no constructors

getDeclaredConstructorsWithoutPowerMockConstructor

Using AI Code Generation

1    public void testGetDeclaredConstructorsWithoutPowerMockConstructor() throws Exception {2        Constructor<?>[] constructors = ConstructorFinder.getDeclaredConstructorsWithoutPowerMockConstructor(3                ClassWithPrivateConstructor.class);4        assertEquals(1, constructors.length);5        assertEquals(1, constructors[0].getParameterTypes().length);6        assertEquals(String.class, constructors[0].getParameterTypes()[0]);7    }8}

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