@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 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 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());
}