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How to use field method of org.mockito.internal.util.reflection.ParameterizedConstructorInstantiatorTest class

Best Mockito code snippet using org.mockito.internal.util.reflection.ParameterizedConstructorInstantiatorTest.field

Source:ParameterizedConstructorInstantiatorTest.java

...29    @Mock30    private FieldInitializer.ConstructorArgumentResolver resolver;31    @Test32    public void should_be_created_with_an_argument_resolver() throws Exception {33        new FieldInitializer.ParameterizedConstructorInstantiator(this, field("whateverForNow"), resolver);34    }35    @Test36    public void should_fail_if_no_parameterized_constructor_found___excluding_inner_and_others_kind_of_types() throws Exception {37        try {38            new FieldInitializer.ParameterizedConstructorInstantiator(this, field("withNoArgConstructor"), resolver).instantiate();39            Assert.fail();40        } catch (MockitoException me) {41            assertThat(me.getMessage()).contains("no parameterized constructor").contains("withNoArgConstructor").contains("NoArgConstructor");42        }43    }44    @Test45    public void should_instantiate_type_if_resolver_provide_matching_types() throws Exception {46        Observer observer = Mockito.mock(Observer.class);47        Map map = Mockito.mock(Map.class);48        BDDMockito.given(resolver.resolveTypeInstances(Matchers.<Class<?>[]>anyVararg())).willReturn(new Object[]{ observer, map });49        new FieldInitializer.ParameterizedConstructorInstantiator(this, field("withMultipleConstructor"), resolver).instantiate();50        Assert.assertNotNull(withMultipleConstructor);51        Assert.assertNotNull(withMultipleConstructor.observer);52        Assert.assertNotNull(withMultipleConstructor.map);53    }54    @Test55    public void should_fail_if_an_argument_instance_type_do_not_match_wanted_type() throws Exception {56        Observer observer = Mockito.mock(Observer.class);57        Set<?> wrongArg = Mockito.mock(Set.class);58        BDDMockito.given(resolver.resolveTypeInstances(Matchers.<Class<?>[]>anyVararg())).willReturn(new Object[]{ observer, wrongArg });59        try {60            new FieldInitializer.ParameterizedConstructorInstantiator(this, field("withMultipleConstructor"), resolver).instantiate();61            Assert.fail();62        } catch (MockitoException e) {63            assertThat(e.getMessage()).contains("argResolver").contains("incorrect types");64        }65    }66    @Test67    public void should_report_failure_if_constructor_throws_exception() throws Exception {68        BDDMockito.given(resolver.resolveTypeInstances(Matchers.<Class<?>[]>anyVararg())).willReturn(new Object[]{ null });69        try {70            new FieldInitializer.ParameterizedConstructorInstantiator(this, field("withThrowingConstructor"), resolver).instantiate();71            Assert.fail();72        } catch (MockitoException e) {73            assertThat(e.getMessage()).contains("constructor").contains("raised an exception");74        }75    }76    @Test77    public void should_instantiate_type_with_vararg_constructor() throws Exception {78        Observer[] vararg = new Observer[]{  };79        BDDMockito.given(resolver.resolveTypeInstances(Matchers.<Class<?>[]>anyVararg())).willReturn(new Object[]{ "", vararg });80        new FieldInitializer.ParameterizedConstructorInstantiator(this, field("withVarargConstructor"), resolver).instantiate();81        Assert.assertNotNull(withVarargConstructor);82    }83    private static class NoArgConstructor {84        NoArgConstructor() {85        }86    }87    private static class OneConstructor {88        public OneConstructor(Observer observer) {89        }90    }91    private static class ThrowingConstructor {92        public ThrowingConstructor(Observer observer) throws IOException {93            throw new IOException();94        }...

field

Using AI Code Generation

1import java.lang.reflect.Field;2import java.lang.reflect.ParameterizedType;3import java.lang.reflect.Type;4import java.util.List;5public class Test {6    private List<String> list;7    public static void main(String[] args) throws NoSuchFieldException {8        Field field = Test.class.getDeclaredField("list");9        Type type = field.getGenericType();10        System.out.println(type);11        System.out.println(type instanceof ParameterizedType);12        ParameterizedType parameterizedType = (ParameterizedType) type;13        System.out.println(parameterizedType.getActualTypeArguments()[0]);14    }15}16import java.lang.reflect.Constructor;17import java.lang.reflect.ParameterizedType;18import java.lang.reflect.Type;19import java.util.List;20import java.util.stream.Collectors;21import java.util.stream.Stream;22public class ParameterizedConstructorInstantiatorTest {23    public static void main(String[] args) throws Exception {24        Constructor<ParameterizedConstructorInstantiatorTest> constructor = ParameterizedConstructorInstantiatorTest.class.getConstructor(List.class);25        Type[] parameterTypes = constructor.getGenericParameterTypes();26        for (Type type : parameterTypes) {27            System.out.println(type);28            System.out.println(type instanceof ParameterizedType);29            ParameterizedType parameterizedType = (ParameterizedType) type;30            System.out.println(parameterizedType.getActualTypeArguments()[0]);31        }32    }33}

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