@Test
public void typeInfoDoesNotEqualForGenericTypesWithDifferentParent() {
TypeInformation<ConcreteWrapper> first = ClassTypeInformation.from(ConcreteWrapper.class);
TypeInformation<AnotherConcreteWrapper> second =
ClassTypeInformation.from(AnotherConcreteWrapper.class);
assertFalse(first.getProperty("wrapped").equals(second.getProperty("wrapped")));
}
@Test
public void discoversBoundTypeForSpecialization() {
TypeInformation<SpecialGenericTypeWithBound> information =
ClassTypeInformation.from(SpecialGenericTypeWithBound.class);
assertEquals(SpecialPerson.class, information.getProperty("person").getType());
}
@Test
@SuppressWarnings("rawtypes")
public void discoversBoundType() {
TypeInformation<GenericTypeWithBound> information =
ClassTypeInformation.from(GenericTypeWithBound.class);
assertEquals(Person.class, information.getProperty("person").getType());
}
@Test
@SuppressWarnings("rawtypes")
public void discoversBoundTypeForNested() {
TypeInformation<AnotherGenericType> information =
ClassTypeInformation.from(AnotherGenericType.class);
assertEquals(GenericTypeWithBound.class, information.getProperty("nested").getType());
assertEquals(Person.class, information.getProperty("nested.person").getType());
}
@Test
public void discoversTypeForSimpleGenericField() {
TypeInformation<ConcreteType> discoverer = ClassTypeInformation.from(ConcreteType.class);
assertEquals(ConcreteType.class, discoverer.getType());
TypeInformation<?> content = discoverer.getProperty("content");
assertEquals(String.class, content.getType());
assertNull(content.getComponentType());
assertNull(content.getMapValueType());
}
@Test
public void resolvesNestedInheritedTypeParameters() {
TypeInformation<SecondExtension> information = ClassTypeInformation.from(SecondExtension.class);
TypeInformation<?> superTypeInformation = information.getSuperTypeInformation(Base.class);
List<TypeInformation<?>> parameters = superTypeInformation.getTypeArguments();
assertThat(parameters, hasSize(1));
assertThat(parameters.get(0).getType(), is((Object) String.class));
}
@Test
public void discoveresMethodParameterTypesCorrectly() throws Exception {
TypeInformation<SecondExtension> information = ClassTypeInformation.from(SecondExtension.class);
Method method = SecondExtension.class.getMethod("foo", Base.class);
List<TypeInformation<?>> informations = information.getParameterTypes(method);
TypeInformation<?> returnTypeInformation = information.getReturnType(method);
assertThat(informations, hasSize(1));
assertThat(informations.get(0).getType(), is((Object) Base.class));
assertThat(informations.get(0), is((Object) returnTypeInformation));
}
@Test
public void resolvesTypeParametersCorrectly() {
TypeInformation<ConcreteType> information = ClassTypeInformation.from(ConcreteType.class);
TypeInformation<?> superTypeInformation =
information.getSuperTypeInformation(GenericType.class);
List<TypeInformation<?>> parameters = superTypeInformation.getTypeArguments();
assertThat(parameters, hasSize(2));
assertThat(parameters.get(0).getType(), is((Object) String.class));
assertThat(parameters.get(1).getType(), is((Object) Object.class));
}
@Test
public void discoversTypeForNestedGenericField() {
TypeInformation<ConcreteWrapper> discoverer = ClassTypeInformation.from(ConcreteWrapper.class);
assertEquals(ConcreteWrapper.class, discoverer.getType());
TypeInformation<?> wrapper = discoverer.getProperty("wrapped");
assertEquals(GenericType.class, wrapper.getType());
TypeInformation<?> content = wrapper.getProperty("content");
assertEquals(String.class, content.getType());
assertEquals(String.class, discoverer.getProperty("wrapped").getProperty("content").getType());
assertEquals(String.class, discoverer.getProperty("wrapped.content").getType());
}
@Test
public void handlesPropertyFieldMismatchCorrectly() {
TypeInformation<PropertyGetter> from = ClassTypeInformation.from(PropertyGetter.class);
TypeInformation<?> property = from.getProperty("_name");
assertThat(property, is(notNullValue()));
assertThat(property.getType(), is(typeCompatibleWith(String.class)));
property = from.getProperty("name");
assertThat(property, is(notNullValue()));
assertThat(property.getType(), is(typeCompatibleWith(byte[].class)));
}
@Test
public void discoversMapValueType() {
TypeInformation<StringMapContainer> information =
ClassTypeInformation.from(StringMapContainer.class);
TypeInformation<?> genericMap = information.getProperty("genericMap");
assertEquals(Map.class, genericMap.getType());
assertEquals(String.class, genericMap.getMapValueType().getType());
TypeInformation<?> map = information.getProperty("map");
assertEquals(Map.class, map.getType());
assertEquals(Calendar.class, map.getMapValueType().getType());
}
/** @see DATACMNS-39 */
@Test
public void resolvesWildCardTypeCorrectly() {
TypeInformation<ClassWithWildCardBound> information =
ClassTypeInformation.from(ClassWithWildCardBound.class);
TypeInformation<?> property = information.getProperty("wildcard");
assertThat(property.isCollectionLike(), is(true));
assertThat(property.getComponentType().getType(), is(typeCompatibleWith(String.class)));
property = information.getProperty("complexWildcard");
assertThat(property.isCollectionLike(), is(true));
TypeInformation<?> component = property.getComponentType();
assertThat(component.isCollectionLike(), is(true));
assertThat(component.getComponentType().getType(), is(typeCompatibleWith(String.class)));
}
@Test
public void discoversArraysAndCollections() {
TypeInformation<StringCollectionContainer> information =
ClassTypeInformation.from(StringCollectionContainer.class);
TypeInformation<?> property = information.getProperty("array");
assertEquals(property.getComponentType().getType(), String.class);
Class<?> type = property.getType();
assertEquals(String[].class, type);
assertThat(type.isArray(), is(true));
property = information.getProperty("foo");
assertEquals(Collection[].class, property.getType());
assertEquals(Collection.class, property.getComponentType().getType());
assertEquals(String.class, property.getComponentType().getComponentType().getType());
property = information.getProperty("rawSet");
assertEquals(Set.class, property.getType());
assertEquals(Object.class, property.getComponentType().getType());
assertNull(property.getMapValueType());
}
/** @see DATACMNS-77 */
@Test
public void returnsSameInstanceForCachedClass() {
TypeInformation<PropertyGetter> info = ClassTypeInformation.from(PropertyGetter.class);
assertThat(ClassTypeInformation.from(PropertyGetter.class), is(sameInstance(info)));
}