How to use inferFrom method of org.mockito.internal.util.reflection.GenericMetadataSupport class

Best Mockito code snippet using org.mockito.internal.util.reflection.GenericMetadataSupport.inferFrom

Source:GenericMetadataSupportTest.java

...4 */5package org.mockito.internal.util.reflection;6import static org.fest.assertions.Assertions.assertThat;7import static org.junit.Assert.fail;8import static org.mockito.internal.util.reflection.GenericMetadataSupport.inferFrom;9import java.io.Serializable;10import java.lang.reflect.Method;11import java.lang.reflect.Type;12import java.lang.reflect.TypeVariable;13import java.util.ArrayList;14import java.util.Collection;15import java.util.Iterator;16import java.util.List;17import java.util.Map;18import java.util.Set;19import org.junit.Test;20public class GenericMetadataSupportTest {21  22    interface GenericsSelfReference<T extends GenericsSelfReference<T>> {23        T self();24    }25    interface UpperBoundedTypeWithClass<E extends Number & Comparable<E>> {26        E get();27    }28    interface UpperBoundedTypeWithInterfaces<E extends Comparable<E> & Cloneable> {29        E get();30    }31    interface ListOfNumbers extends List<Number> {}32    interface ListOfAnyNumbers<N extends Number & Cloneable> extends List<N> {}33    interface GenericsNest<K extends Comparable<K> & Cloneable> extends Map<K, Set<Number>> {34        Set<Number> remove(Object key); // override with fixed ParameterizedType35        List<? super Integer> returning_wildcard_with_class_lower_bound();36        List<? super K> returning_wildcard_with_typeVar_lower_bound();37        List<? extends K> returning_wildcard_with_typeVar_upper_bound();38        K returningK();39        <O extends K> List<O> paramType_with_type_params();40        <S, T extends S> T two_type_params();41        <O extends K> O typeVar_with_type_params();42    }43    static class StringList extends ArrayList<String> { }44    @Test45    public void typeVariable_of_self_type() {46        GenericMetadataSupport genericMetadata = inferFrom(GenericsSelfReference.class).resolveGenericReturnType(firstNamedMethod("self", GenericsSelfReference.class));47        assertThat(genericMetadata.rawType()).isEqualTo(GenericsSelfReference.class);48    }49    @Test50    public void can_get_raw_type_from_Class() throws Exception {51        assertThat(inferFrom(ListOfAnyNumbers.class).rawType()).isEqualTo(ListOfAnyNumbers.class);52        assertThat(inferFrom(ListOfNumbers.class).rawType()).isEqualTo(ListOfNumbers.class);53        assertThat(inferFrom(GenericsNest.class).rawType()).isEqualTo(GenericsNest.class);54        assertThat(inferFrom(StringList.class).rawType()).isEqualTo(StringList.class);55    }56    @Test57    public void can_get_raw_type_from_ParameterizedType() throws Exception {58        assertThat(inferFrom(ListOfAnyNumbers.class.getGenericInterfaces()[0]).rawType()).isEqualTo(List.class);59        assertThat(inferFrom(ListOfNumbers.class.getGenericInterfaces()[0]).rawType()).isEqualTo(List.class);60        assertThat(inferFrom(GenericsNest.class.getGenericInterfaces()[0]).rawType()).isEqualTo(Map.class);61        assertThat(inferFrom(StringList.class.getGenericSuperclass()).rawType()).isEqualTo(ArrayList.class);62    }63    @Test64    public void can_get_type_variables_from_Class() throws Exception {65        assertThat(inferFrom(GenericsNest.class).actualTypeArguments().keySet()).hasSize(1).onProperty("name").contains("K");66        assertThat(inferFrom(ListOfNumbers.class).actualTypeArguments().keySet()).isEmpty();67        assertThat(inferFrom(ListOfAnyNumbers.class).actualTypeArguments().keySet()).hasSize(1).onProperty("name").contains("N");68        assertThat(inferFrom(Map.class).actualTypeArguments().keySet()).hasSize(2).onProperty("name").contains("K", "V");69        assertThat(inferFrom(Serializable.class).actualTypeArguments().keySet()).isEmpty();70        assertThat(inferFrom(StringList.class).actualTypeArguments().keySet()).isEmpty();71    }72    @Test73    public void can_get_type_variables_from_ParameterizedType() throws Exception {74        assertThat(inferFrom(GenericsNest.class.getGenericInterfaces()[0]).actualTypeArguments().keySet()).hasSize(2).onProperty("name").contains("K", "V");75        assertThat(inferFrom(ListOfAnyNumbers.class.getGenericInterfaces()[0]).actualTypeArguments().keySet()).hasSize(1).onProperty("name").contains("E");76        assertThat(inferFrom(Integer.class.getGenericInterfaces()[0]).actualTypeArguments().keySet()).hasSize(1).onProperty("name").contains("T");77        assertThat(inferFrom(StringBuilder.class.getGenericInterfaces()[0]).actualTypeArguments().keySet()).isEmpty();78        assertThat(inferFrom(StringList.class).actualTypeArguments().keySet()).isEmpty();79    }80    @Test81    public void typeVariable_return_type_of____iterator____resolved_to_Iterator_and_type_argument_to_String() throws Exception {82        GenericMetadataSupport genericMetadata = inferFrom(StringList.class).resolveGenericReturnType(firstNamedMethod("iterator", StringList.class));83        assertThat(genericMetadata.rawType()).isEqualTo(Iterator.class);84        assertThat(genericMetadata.actualTypeArguments().values()).contains(String.class);85    }86    @Test87    public void typeVariable_return_type_of____get____resolved_to_Set_and_type_argument_to_Number() throws Exception {88        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("get", GenericsNest.class));89        assertThat(genericMetadata.rawType()).isEqualTo(Set.class);90        assertThat(genericMetadata.actualTypeArguments().values()).contains(Number.class);91    }92    @Test93    public void bounded_typeVariable_return_type_of____returningK____resolved_to_Comparable_and_with_BoundedType() throws Exception {94        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("returningK", GenericsNest.class));95        assertThat(genericMetadata.rawType()).isEqualTo(Comparable.class);96        GenericMetadataSupport extraInterface_0 = inferFrom(genericMetadata.extraInterfaces().get(0));97        assertThat(extraInterface_0.rawType()).isEqualTo(Cloneable.class);98    }99    @Test100    public void fixed_ParamType_return_type_of____remove____resolved_to_Set_and_type_argument_to_Number() throws Exception {101        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("remove", GenericsNest.class));102        assertThat(genericMetadata.rawType()).isEqualTo(Set.class);103        assertThat(genericMetadata.actualTypeArguments().values()).contains(Number.class);104    }105    @Test106    public void paramType_return_type_of____values____resolved_to_Collection_and_type_argument_to_Parameterized_Set() throws Exception {107        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("values", GenericsNest.class));108        assertThat(genericMetadata.rawType()).isEqualTo(Collection.class);109        GenericMetadataSupport fromTypeVariableE = inferFrom(typeVariableValue(genericMetadata.actualTypeArguments(), "E"));110        assertThat(fromTypeVariableE.rawType()).isEqualTo(Set.class);111        assertThat(fromTypeVariableE.actualTypeArguments().values()).contains(Number.class);112    }113    @Test114    public void paramType_with_type_parameters_return_type_of____paramType_with_type_params____resolved_to_Collection_and_type_argument_to_Parameterized_Set() throws Exception {115        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("paramType_with_type_params", GenericsNest.class));116        assertThat(genericMetadata.rawType()).isEqualTo(List.class);117        Type firstBoundOfE = ((GenericMetadataSupport.TypeVarBoundedType) typeVariableValue(genericMetadata.actualTypeArguments(), "E")).firstBound();118        assertThat(inferFrom(firstBoundOfE).rawType()).isEqualTo(Comparable.class);119    }120    @Test121    public void typeVariable_with_type_parameters_return_type_of____typeVar_with_type_params____resolved_K_hence_to_Comparable_and_with_BoundedType() throws Exception {122        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("typeVar_with_type_params", GenericsNest.class));123        assertThat(genericMetadata.rawType()).isEqualTo(Comparable.class);124        GenericMetadataSupport extraInterface_0 = inferFrom(genericMetadata.extraInterfaces().get(0));125        assertThat(extraInterface_0.rawType()).isEqualTo(Cloneable.class);126    }127    @Test128    public void class_return_type_of____append____resolved_to_StringBuilder_and_type_arguments() throws Exception {129        GenericMetadataSupport genericMetadata = inferFrom(StringBuilder.class).resolveGenericReturnType(firstNamedMethod("append", StringBuilder.class));130        assertThat(genericMetadata.rawType()).isEqualTo(StringBuilder.class);131        assertThat(genericMetadata.actualTypeArguments()).isEmpty();132    }133    @Test134    public void paramType_with_wildcard_return_type_of____returning_wildcard_with_class_lower_bound____resolved_to_List_and_type_argument_to_Integer() throws Exception {135        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("returning_wildcard_with_class_lower_bound", GenericsNest.class));136        assertThat(genericMetadata.rawType()).isEqualTo(List.class);137        GenericMetadataSupport.BoundedType boundedType = (GenericMetadataSupport.BoundedType) typeVariableValue(genericMetadata.actualTypeArguments(), "E");138        assertThat(boundedType.firstBound()).isEqualTo(Integer.class);139        assertThat(boundedType.interfaceBounds()).isEmpty();140    }141    @Test142    public void paramType_with_wildcard_return_type_of____returning_wildcard_with_typeVar_lower_bound____resolved_to_List_and_type_argument_to_Integer() throws Exception {143        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("returning_wildcard_with_typeVar_lower_bound", GenericsNest.class));144        assertThat(genericMetadata.rawType()).isEqualTo(List.class);145        GenericMetadataSupport.BoundedType boundedType = (GenericMetadataSupport.BoundedType) typeVariableValue(genericMetadata.actualTypeArguments(), "E");146        assertThat(inferFrom(boundedType.firstBound()).rawType()).isEqualTo(Comparable.class);147        assertThat(boundedType.interfaceBounds()).contains(Cloneable.class);    }148    @Test149    public void paramType_with_wildcard_return_type_of____returning_wildcard_with_typeVar_upper_bound____resolved_to_List_and_type_argument_to_Integer() throws Exception {150        GenericMetadataSupport genericMetadata = inferFrom(GenericsNest.class).resolveGenericReturnType(firstNamedMethod("returning_wildcard_with_typeVar_upper_bound", GenericsNest.class));151        assertThat(genericMetadata.rawType()).isEqualTo(List.class);152        GenericMetadataSupport.BoundedType boundedType = (GenericMetadataSupport.BoundedType) typeVariableValue(genericMetadata.actualTypeArguments(), "E");153        assertThat(inferFrom(boundedType.firstBound()).rawType()).isEqualTo(Comparable.class);154        assertThat(boundedType.interfaceBounds()).contains(Cloneable.class);155    }156    private Type typeVariableValue(Map<TypeVariable, Type> typeVariables, String typeVariableName) {157        for (Map.Entry<TypeVariable, Type> typeVariableTypeEntry : typeVariables.entrySet()) {158            if (typeVariableTypeEntry.getKey().getName().equals(typeVariableName)) {159                return typeVariableTypeEntry.getValue();160            }161        }162        fail("'" + typeVariableName + "' was not found in " + typeVariables);163        return null; // unreachable164    }165    private Method firstNamedMethod(String methodName, Class<?> clazz) {166        for (Method method : clazz.getMethods()) {167            boolean protect_against_different_jdk_ordering_avoiding_bridge_methods = !method.isBridge();...

inferFrom

Using AI Code Generation

1import org.mockito.internal.util.reflection.GenericMetadataSupport2import org.mockito.internal.util.reflection.GenericMetadataSupport.GenericType3import org.mockito.internal.util.reflection.GenericMetadataSupport.GenericType.GenericArrayType4import org.mockito.internal.util.reflection.GenericMetadataSupport.GenericType.ParameterizedType5import org.mockito.internal.util.reflection.GenericMetadataSupport.GenericType.TypeVariable6import org.mockito.internal.util.reflection.GenericMetadataSupport.GenericType.WildcardType7def genericType = new GenericMetadataSupport().inferFrom(ArrayList.class, Number.class)8def genericType = new GenericMetadataSupport().inferFrom(ArrayList.class, Integer.class)9def genericType = new GenericMetadataSupport().inferFrom(ArrayList.class, String.class)10def genericType = new GenericMetadataSupport().inferFrom(ArrayList.class, Object.class)11def genericType = new GenericMetadataSupport().inferFrom(ArrayList.class, List.class)12def genericType = new GenericMetadataSupport().inferFrom(ArrayList.class, ArrayList.class)

inferFrom

Using AI Code Generation

1import org.mockito.internal.util.reflection.GenericMetadataSupport;2import org.mockito.internal.util.reflection.GenericMetadataSupport.GenericType;3import org.mockito.internal.util.reflection.GenericMetadataSupport.InferredType;4import java.lang.reflect.Method;5import java.lang.reflect.Type;6import java.util.List;7public class MockTest {8    public static void main(String[] args) throws Exception {9        Method method = MockTest.class.getMethod("test", List.class);10        Type[] genericParameterTypes = method.getGenericParameterTypes();11        GenericType genericType = new GenericType(genericParameterTypes[0]);12        InferredType inferredType = new GenericMetadataSupport().inferFrom(genericType);13        System.out.println("inferredType: " + inferredType);14    }15    public void test(List<String> list) {16    }17}18import org.mockito.internal.util.reflection.GenericMetadataSupport;19import org.mockito.internal.util.reflection.GenericMetadataSupport.GenericType;20import org.mockito.internal.util.reflection.GenericMetadataSupport.InferredType;21import java.lang.reflect.Method;22import java.lang.reflect.Type;23import java.util.List;24public class MockTest {25    public static void main(String[] args) throws Exception {26        Method method = MockTest.class.getMethod("test", List.class);27        Type[] genericParameterTypes = method.getGenericParameterTypes();28        GenericType genericType = new GenericType(genericParameterTypes[0]);29        InferredType inferredType = new GenericMetadataSupport().inferFrom(genericType);30        System.out.println("inferredType: " + inferredType);31    }32    public void test(List<String> list) {33    }34}

inferFrom

Using AI Code Generation

1import org.mockito.internal.util.reflection.GenericMetadataSupport;2public class GenericMetadataSupportTest {3    public static void main(String[] args) {4        GenericMetadataSupport genericMetadataSupport = new GenericMetadataSupport();5        Class<?> inferFrom = genericMetadataSupport.inferFrom(Child.class, Child.class, 0);6        System.out.println(inferFrom);7    }8}9class Parent<T> {10    T obj;11}12class Child extends Parent<String> {13}14Mockito’s mock() Method15Mockito’s when() Method16Mockito’s verify() Method17Mockito’s mock() Method18import org.mockito.Mockito;19public class MockitoMockMethodExample {20    public static void main(String[] args) {21        ArrayList mockList = Mockito.mock(ArrayList.class);22    }23}24Mockito’s when() Method25The OngoingStubbing class provides the thenReturn() method. We can use this method to specify the return value of

inferFrom

Using AI Code Generation

1public class GenericMetadataSupportTest {2    public void testInferFrom() throws Exception {3        GenericMetadataSupport genericMetadataSupport = new GenericMetadataSupport();4        Class<?> classToInferFrom = GenericMetadataSupport.class;5        Class<?> typeToInfer = genericMetadataSupport.inferFrom(classToInferFrom, GenericMetadataSupport.class, "inferFrom");6        assertThat(typeToInfer).isEqualTo(Class.class);7    }8}9private static <T> T inferFrom(Class<?> type, Class<?> genericType, String methodName) {10    return new GenericMetadataSupport().inferFrom(type, genericType, methodName);11}12private static Class<?> inferFrom(Class<?> type, String methodName) {13    return inferFrom(type, Class.class, methodName);14}15private static Class<?> inferFrom(Class<?> type, String methodName, int parameterIndex) {16    return inferFrom(type, Class.class, methodName, parameterIndex);17}18private static <T> T inferFrom(Class<?> type, Class<?> genericType, String methodName, int parameterIndex) {19    return new GenericMetadataSupport().inferFrom(type, genericType, methodName, parameterIndex);20}21private static Class<?> inferFrom(Class<?> type, String methodName, int parameterIndex) {22    return inferFrom(type, Class.class, methodName, parameterIndex);23}24private static Class<?> inferFrom(Class<?> type, String methodName, int parameterIndex) {25    return inferFrom(type, Class.class, methodName, parameterIndex);26}27private static <T> T inferFrom(Class<?> type, Class<?> genericType, String methodName) {28    return new GenericMetadataSupport().inferFrom(type, genericType, methodName);29}30private static Class<?> inferFrom(Class<?> type, String methodName) {31    return inferFrom(type, Class.class, methodName);32}33private static Class<?> inferFrom(Class<?> type, String methodName, int parameterIndex) {

inferFrom

Using AI Code Generation

1public class GenericMetadataSupportTest {2    public static class GenericType<T> {3        public T value;4    }5    public static class GenericTypeWithMultipleTypeParameters<T1, T2> {6        public T1 value1;7        public T2 value2;8    }9    public static class GenericTypeWithMultipleTypeParametersAndBounds<T1 extends Number, T2 extends String> {10        public T1 value1;11        public T2 value2;12    }13    public static class GenericTypeWithExtendsTypeParameter<T extends Number> {14        public T value;15    }16    public static class GenericTypeWithSuperTypeParameter<T super String> {17        public T value;18    }19    public static class GenericTypeWithMultipleExtendsTypeParameters<T1 extends Number, T2 extends String> {20        public T1 value1;21        public T2 value2;22    }23    public static class GenericTypeWithMultipleSuperTypeParameters<T1 super Number, T2 super String> {24        public T1 value1;25        public T2 value2;26    }27    public static class GenericTypeWithMultipleExtendsAndSuperTypeParameters<T1 extends Number, T2 super String> {28        public T1 value1;29        public T2 value2;30    }31    public static class GenericTypeWithMultipleExtendsAndSuperTypeParametersAndBounds<T1 extends Number, T2 super String, T3 extends String, T4 super Integer> {32        public T1 value1;33        public T2 value2;34        public T3 value3;35        public T4 value4;36    }37    public static class GenericTypeWithMultipleExtendsAndSuperTypeParametersAndBoundsAndVoid<T1 extends Number, T2 super String, T3 extends String, T4 super Integer, T5> {38        public T1 value1;39        public T2 value2;40        public T3 value3;41        public T4 value4;42        public T5 value5;43    }44    public static class GenericTypeWithMultipleExtendsAndSuperTypeParametersAndBoundsAndVoidAndArray<T1 extends Number, T2 super String, T3 extends String, T4 super Integer, T5, T6[]> {45        public T1 value1;46        public T2 value2;47        public T3 value3;48        public T4 value4;49        public T5 value5;50        public T6[] value6;51    }

inferFrom

Using AI Code Generation

1import org.mockito.internal.util.reflection.GenericMetadataSupport;2import org.mockito.internal.util.reflection.GenericMetadataSupport.*;3import java.lang.reflect.*;4import java.util.*;5import static java.lang.System.out;6class A<T> {7    List<T> list;8}9class B extends A<String> {10    List<String> list;11}12class C extends A<Integer> {13    List<Integer> list;14}15class D extends A<String> {16    List<Integer> list;17}18class E extends A<Integer> {19    List<String> list;20}21public class Test {22    public static void main(String... args) throws NoSuchFieldException {23        out.println("A<String>:");24        out.println("A.list: " + GenericMetadataSupport.inferFrom(A.class, A.class.getField("list")));25        out.println("B.list: " + GenericMetadataSupport.inferFrom(B.class, B.class.getField("list")));26        out.println("C.list: " + GenericMetadataSupport.inferFrom(C.class, C.class.getField("list")));27        out.println("D.list: " + GenericMetadataSupport.inferFrom(D.class, D.class.getField("list")));28        out.println("E.list: " + GenericMetadataSupport.inferFrom(E.class, E.class.getField("list")));29    }30}

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