@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 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());
}
@Test
public void returnsComponentTypeForMultiDimensionalArrayCorrectly() {
TypeInformation<?> information = from(String[][].class);
assertThat(information.getType(), is((Object) String[][].class));
assertThat(information.getComponentType().getType(), is((Object) String[].class));
assertThat(information.getActualType().getActualType().getType(), is((Object) 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());
}
