| /* |
| * Copyright (C) 2007 The Guava Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.google.common.reflect; |
| |
| import static org.truth0.Truth.ASSERT; |
| |
| import com.google.common.base.Function; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Maps; |
| import com.google.common.primitives.Primitives; |
| import com.google.common.testing.EqualsTester; |
| import com.google.common.testing.NullPointerTester; |
| import com.google.common.testing.SerializableTester; |
| |
| import junit.framework.TestCase; |
| |
| import org.truth0.subjects.CollectionSubject; |
| |
| import java.io.Serializable; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.GenericArrayType; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.ParameterizedType; |
| import java.lang.reflect.Type; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * Test cases for {@link TypeToken}. |
| * |
| * @author Sven Mawson |
| * @author Ben Yu |
| */ |
| public class TypeTokenTest extends TestCase { |
| |
| private abstract static class StringList implements List<String> {} |
| |
| private abstract static class IntegerList implements List<Integer> {} |
| |
| public void testValueEqualityNotInstanceEquality() { |
| TypeToken<List<String>> a = new TypeToken<List<String>>() {}; |
| TypeToken<List<String>> b = new TypeToken<List<String>>() {}; |
| assertEquals(a, b); |
| } |
| |
| public <T> void testVariableTypeTokenNotAllowed() { |
| try { |
| new TypeToken<T>() {}; |
| fail(); |
| } catch (IllegalStateException expected) {} |
| } |
| |
| public void testRawTypeIsCorrect() { |
| TypeToken<List<String>> token = new TypeToken<List<String>>() {}; |
| assertEquals(List.class, token.getRawType()); |
| } |
| |
| public void testTypeIsCorrect() { |
| TypeToken<List<String>> token = new TypeToken<List<String>>() {}; |
| assertEquals(StringList.class.getGenericInterfaces()[0], token.getType()); |
| } |
| |
| @SuppressWarnings("rawtypes") // Trying to test TypeToken.of(List.class) |
| public void testGetClass() { |
| TypeToken<List> token = TypeToken.of(List.class); |
| assertEquals(new TypeToken<List>() {}, token); |
| } |
| |
| public void testGetType() { |
| TypeToken<?> t = TypeToken.of(StringList.class.getGenericInterfaces()[0]); |
| assertEquals(new TypeToken<List<String>>() {}, t); |
| } |
| |
| public void testNonStaticLocalClass() { |
| class Local<T> {} |
| TypeToken<Local<String>> type = new TypeToken<Local<String>>() {}; |
| assertEquals(Types.newParameterizedType(Local.class, String.class), |
| type.getType()); |
| assertEquals(new Local<String>() {}.getClass().getGenericSuperclass(), type.getType()); |
| } |
| |
| public void testStaticLocalClass() { |
| doTestStaticLocalClass(); |
| } |
| |
| private static void doTestStaticLocalClass() { |
| class Local<T> {} |
| TypeToken<Local<String>> type = new TypeToken<Local<String>>() {}; |
| assertEquals(Types.newParameterizedType(Local.class, String.class), |
| type.getType()); |
| assertEquals(new Local<String>() {}.getClass().getGenericSuperclass(), type.getType()); |
| } |
| |
| public void testGenericArrayType() throws Exception { |
| TypeToken<List<String>[]> token = new TypeToken<List<String>[]>() {}; |
| assertEquals(List[].class, token.getRawType()); |
| assertTrue(token.getType() instanceof GenericArrayType); |
| } |
| |
| public void testMultiDimensionalGenericArrayType() throws Exception { |
| TypeToken<List<Long>[][][]> token = new TypeToken<List<Long>[][][]>() {}; |
| assertEquals(List[][][].class, token.getRawType()); |
| assertTrue(token.getType() instanceof GenericArrayType); |
| } |
| |
| public <T> void testGenericVariableTypeArrays() throws Exception { |
| assertEquals("T[]", new TypeToken<T[]>() {}.toString()); |
| } |
| |
| public void testResolveType() throws Exception { |
| Method getFromList = List.class.getMethod("get", int.class); |
| TypeToken<?> returnType = new TypeToken<List<String>>() {} |
| .resolveType(getFromList.getGenericReturnType()); |
| assertEquals(String.class, returnType.getType()); |
| } |
| |
| public <F extends Enum<F> & Function<String, Integer> & Iterable<Long>> |
| void testResolveType_fromTypeVariable() throws Exception { |
| TypeToken<?> f = TypeToken.of(new TypeCapture<F>() {}.capture()); |
| assertEquals(String.class, |
| f.resolveType(Function.class.getTypeParameters()[0]).getType()); |
| assertEquals(Integer.class, |
| f.resolveType(Function.class.getTypeParameters()[1]).getType()); |
| assertEquals(Long.class, |
| f.resolveType(Iterable.class.getTypeParameters()[0]).getType()); |
| } |
| |
| public <E extends Comparable<Iterable<String>> & Iterable<Integer>> |
| void testResolveType_fromTypeVariable_onlyDirectBoundsAreUsed() throws Exception { |
| TypeToken<?> e = TypeToken.of(new TypeCapture<E>() {}.capture()); |
| assertEquals(Integer.class, |
| e.resolveType(Iterable.class.getTypeParameters()[0]).getType()); |
| } |
| |
| public void testResolveType_fromWildcard() throws Exception { |
| ParameterizedType withWildcardType = (ParameterizedType) |
| new TypeCapture<Comparable<? extends Iterable<String>>>() {}.capture(); |
| TypeToken<?> wildcardType = TypeToken.of(withWildcardType.getActualTypeArguments()[0]); |
| assertEquals(String.class, |
| wildcardType.resolveType(Iterable.class.getTypeParameters()[0]).getType()); |
| } |
| |
| public void testGetTypes_noSuperclass() { |
| TypeToken<Object>.TypeSet types = new TypeToken<Object>() {}.getTypes(); |
| ASSERT.that(types).has().item(TypeToken.of(Object.class)); |
| ASSERT.that(types.rawTypes()).has().item(Object.class); |
| ASSERT.that(types.interfaces()).isEmpty(); |
| ASSERT.that(types.interfaces().rawTypes()).isEmpty(); |
| ASSERT.that(types.classes()).has().item(TypeToken.of(Object.class)); |
| ASSERT.that(types.classes().rawTypes()).has().item(Object.class); |
| } |
| |
| public void testGetTypes_fromInterface() { |
| TypeToken<Interface1>.TypeSet types = new TypeToken<Interface1>() {}.getTypes(); |
| ASSERT.that(types).has().item(TypeToken.of(Interface1.class)); |
| ASSERT.that(types.rawTypes()).has().item(Interface1.class); |
| ASSERT.that(types.interfaces()).has().item(TypeToken.of(Interface1.class)); |
| ASSERT.that(types.interfaces().rawTypes()).has().item(Interface1.class); |
| ASSERT.that(types.classes()).isEmpty(); |
| ASSERT.that(types.classes().rawTypes()).isEmpty(); |
| } |
| |
| public void testGetTypes_fromPrimitive() { |
| TypeToken<Integer>.TypeSet types = TypeToken.of(int.class).getTypes(); |
| ASSERT.that(types).has().item(TypeToken.of(int.class)); |
| ASSERT.that(types.rawTypes()).has().item(int.class); |
| ASSERT.that(types.interfaces()).isEmpty(); |
| ASSERT.that(types.interfaces().rawTypes()).isEmpty(); |
| ASSERT.that(types.classes()).has().item(TypeToken.of(int.class)); |
| ASSERT.that(types.classes().rawTypes()).has().item(int.class); |
| } |
| |
| public void testGetTypes_withInterfacesAndSuperclasses() { |
| abstract class Class2 extends Class1 implements Interface12 {} |
| abstract class Class3<T> extends Class2 implements Interface3<T> {} |
| TypeToken<Class3<String>>.TypeSet types = new TypeToken<Class3<String>>() {}.getTypes(); |
| assertThat(types).has().exactly( |
| new TypeToken<Class3<String>>() {}, |
| new TypeToken<Interface3<String>>() {}, |
| new TypeToken<Iterable<String>>() {}, |
| TypeToken.of(Class2.class), |
| TypeToken.of(Interface12.class), |
| TypeToken.of(Interface1.class), |
| TypeToken.of(Interface2.class), |
| TypeToken.of(Class1.class), |
| TypeToken.of(Object.class)); |
| assertThat(types.interfaces()).has().exactly( |
| new TypeToken<Interface3<String>>() {}, |
| TypeToken.of(Interface12.class), |
| TypeToken.of(Interface1.class), |
| TypeToken.of(Interface2.class), |
| new TypeToken<Iterable<String>>() {}); |
| assertThat(types.classes()).has().exactly( |
| new TypeToken<Class3<String>>() {}, |
| TypeToken.of(Class2.class), |
| TypeToken.of(Class1.class), |
| TypeToken.of(Object.class)); |
| assertSubtypeFirst(types); |
| } |
| |
| public void testGetTypes_rawTypes_withInterfacesAndSuperclasses() { |
| abstract class Class2 extends Class1 implements Interface12 {} |
| abstract class Class3<T> extends Class2 implements Interface3<T> {} |
| TypeToken<Class3<String>>.TypeSet types = new TypeToken<Class3<String>>() {}.getTypes(); |
| assertThat(types.rawTypes()).has().exactly( |
| Class3.class, Interface3.class, |
| Iterable.class, |
| Class2.class, |
| Interface12.class, |
| Interface1.class, |
| Interface2.class, |
| Class1.class, |
| Object.class); |
| assertThat(types.interfaces().rawTypes()).has().exactly( |
| Interface3.class, |
| Interface12.class, |
| Interface1.class, |
| Interface2.class, |
| Iterable.class); |
| assertThat(types.classes().rawTypes()).has().exactly( |
| Class3.class, |
| Class2.class, |
| Class1.class, |
| Object.class); |
| assertSubtypeFirst(types); |
| } |
| |
| public <A extends Class1 & Interface1, B extends A> |
| void testGetTypes_ignoresTypeVariablesByDefault() { |
| TypeToken<?>.TypeSet types = TypeToken.of(new TypeCapture<B>() {}.capture()).getTypes(); |
| assertThat(types).has().exactly( |
| TypeToken.of(Interface1.class), TypeToken.of(Class1.class), |
| TypeToken.of(Object.class)); |
| assertSubtypeFirst(types); |
| assertThat(types.interfaces()) |
| .has().exactly(TypeToken.of(Interface1.class)) |
| .inOrder(); |
| assertThat(types.classes()) |
| .has().exactly(TypeToken.of(Class1.class), TypeToken.of(Object.class)) |
| .inOrder(); |
| } |
| |
| public <A extends Class1 & Interface1, B extends A> |
| void testGetTypes_rawTypes_ignoresTypeVariablesByDefault() { |
| TypeToken<?>.TypeSet types = TypeToken.of(new TypeCapture<B>() {}.capture()).getTypes(); |
| assertThat(types.rawTypes()) |
| .has().exactly(Interface1.class, Class1.class, Object.class); |
| assertThat(types.interfaces().rawTypes()) |
| .has().exactly(Interface1.class) |
| .inOrder(); |
| assertThat(types.classes().rawTypes()) |
| .has().exactly(Class1.class, Object.class) |
| .inOrder(); |
| } |
| |
| public <A extends Interface1 & Interface2 & Interface3<String>> |
| void testGetTypes_manyBounds() { |
| TypeToken<?>.TypeSet types = TypeToken.of(new TypeCapture<A>() {}.capture()).getTypes(); |
| assertThat(types.rawTypes()) |
| .has().exactly(Interface1.class, Interface2.class, Interface3.class, Iterable.class); |
| } |
| |
| private static void assertSubtypeFirst(TypeToken<?>.TypeSet types) { |
| assertSubtypeTokenBeforeSupertypeToken(types); |
| assertSubtypeTokenBeforeSupertypeToken(types.interfaces()); |
| assertSubtypeTokenBeforeSupertypeToken(types.classes()); |
| assertSubtypeBeforeSupertype(types.rawTypes()); |
| assertSubtypeBeforeSupertype(types.interfaces().rawTypes()); |
| assertSubtypeBeforeSupertype(types.classes().rawTypes()); |
| } |
| |
| private static void assertSubtypeTokenBeforeSupertypeToken( |
| Iterable<? extends TypeToken<?>> types) { |
| int i = 0; |
| for (TypeToken<?> left : types) { |
| int j = 0; |
| for (TypeToken<?> right : types) { |
| if (left.isAssignableFrom(right)) { |
| assertTrue(left + " should be after " + right, i >= j); |
| } |
| j++; |
| } |
| i++; |
| } |
| } |
| |
| private static void assertSubtypeBeforeSupertype(Iterable<? extends Class<?>> types) { |
| int i = 0; |
| for (Class<?> left : types) { |
| int j = 0; |
| for (Class<?> right : types) { |
| if (left.isAssignableFrom(right)) { |
| assertTrue(left + " should be after " + right, i >= j); |
| } |
| j++; |
| } |
| i++; |
| } |
| } |
| |
| // Tests to make sure assertSubtypeBeforeSupertype() works. |
| |
| public void testAssertSubtypeTokenBeforeSupertypeToken_empty() { |
| assertSubtypeTokenBeforeSupertypeToken(ImmutableList.<TypeToken<?>>of()); |
| } |
| |
| public void testAssertSubtypeTokenBeforeSupertypeToken_oneType() { |
| assertSubtypeTokenBeforeSupertypeToken(ImmutableList.of(TypeToken.of(String.class))); |
| } |
| |
| public void testAssertSubtypeTokenBeforeSupertypeToken_subtypeFirst() { |
| assertSubtypeTokenBeforeSupertypeToken( |
| ImmutableList.of(TypeToken.of(String.class), TypeToken.of(CharSequence.class))); |
| } |
| |
| public void testAssertSubtypeTokenBeforeSupertypeToken_supertypeFirst() { |
| try { |
| assertSubtypeTokenBeforeSupertypeToken( |
| ImmutableList.of(TypeToken.of(CharSequence.class), TypeToken.of(String.class))); |
| } catch (AssertionError expected) { |
| return; |
| } |
| fail(); |
| } |
| |
| public void testAssertSubtypeTokenBeforeSupertypeToken_duplicate() { |
| try { |
| assertSubtypeTokenBeforeSupertypeToken( |
| ImmutableList.of(TypeToken.of(String.class), TypeToken.of(String.class))); |
| } catch (AssertionError expected) { |
| return; |
| } |
| fail(); |
| } |
| |
| public void testAssertSubtypeBeforeSupertype_empty() { |
| assertSubtypeBeforeSupertype(ImmutableList.<Class<?>>of()); |
| } |
| |
| public void testAssertSubtypeBeforeSupertype_oneType() { |
| assertSubtypeBeforeSupertype(ImmutableList.of(String.class)); |
| } |
| |
| public void testAssertSubtypeBeforeSupertype_subtypeFirst() { |
| assertSubtypeBeforeSupertype( |
| ImmutableList.of(String.class, CharSequence.class)); |
| } |
| |
| public void testAssertSubtypeBeforeSupertype_supertypeFirst() { |
| try { |
| assertSubtypeBeforeSupertype( |
| ImmutableList.of(CharSequence.class, String.class)); |
| } catch (AssertionError expected) { |
| return; |
| } |
| fail(); |
| } |
| |
| public void testAssertSubtypeBeforeSupertype_duplicate() { |
| try { |
| assertSubtypeBeforeSupertype( |
| ImmutableList.of(String.class, String.class)); |
| } catch (AssertionError expected) { |
| return; |
| } |
| fail(); |
| } |
| |
| public void testGetGenericSuperclass_noSuperclass() { |
| assertNull(new TypeToken<Object>() {}.getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), |
| new TypeToken<Object[]>() {}.getGenericSuperclass()); |
| assertNull(new TypeToken<List<String>>() {}.getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), |
| new TypeToken<List<String>[]>() {}.getGenericSuperclass()); |
| } |
| |
| public void testGetGenericSuperclass_withSuperclass() { |
| TypeToken<? super ArrayList<String>> superToken = |
| new TypeToken<ArrayList<String>>() {}.getGenericSuperclass(); |
| assertEquals(ArrayList.class.getSuperclass(), superToken.getRawType()); |
| assertEquals(String.class, |
| ((ParameterizedType) superToken.getType()).getActualTypeArguments()[0]); |
| assertEquals(TypeToken.of(Base.class), TypeToken.of(Sub.class).getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), TypeToken.of(Sub[].class).getGenericSuperclass()); |
| } |
| |
| public <T> void testGetGenericSuperclass_typeVariable_unbounded() { |
| assertEquals(TypeToken.of(Object.class), |
| TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), new TypeToken<T[]>() {}.getGenericSuperclass()); |
| } |
| |
| public <T extends ArrayList<String> & CharSequence> |
| void testGetGenericSuperclass_typeVariable_boundIsClass() { |
| assertEquals(new TypeToken<ArrayList<String>>() {}, |
| TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), new TypeToken<T[]>() {}.getGenericSuperclass()); |
| } |
| |
| public <T extends Enum<T> & CharSequence> |
| void testGetGenericSuperclass_typeVariable_boundIsFBoundedClass() { |
| assertEquals(new TypeToken<Enum<T>>() {}, |
| TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), new TypeToken<T[]>() {}.getGenericSuperclass()); |
| } |
| |
| public <T extends List<String> & CharSequence> |
| void testGetGenericSuperclass_typeVariable_boundIsInterface() { |
| assertNull(TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), new TypeToken<T[]>() {}.getGenericSuperclass()); |
| } |
| |
| public <T extends ArrayList<String> & CharSequence, T1 extends T> |
| void testGetGenericSuperclass_typeVariable_boundIsTypeVariableAndClass() { |
| assertEquals(TypeToken.of(new TypeCapture<T>() {}.capture()), |
| TypeToken.of(new TypeCapture<T1>() {}.capture()).getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), new TypeToken<T[]>() {}.getGenericSuperclass()); |
| } |
| |
| public <T extends List<String> & CharSequence, T1 extends T> |
| void testGetGenericSuperclass_typeVariable_boundIsTypeVariableAndInterface() { |
| assertNull(TypeToken.of(new TypeCapture<T1>() {}.capture()).getGenericSuperclass()); |
| assertEquals(TypeToken.of(Object.class), new TypeToken<T1[]>() {}.getGenericSuperclass()); |
| } |
| |
| public void testGetGenericSuperclass_wildcard_lowerBounded() { |
| assertEquals(TypeToken.of(Object.class), |
| TypeToken.of(Types.supertypeOf(String.class)).getGenericSuperclass()); |
| assertEquals(new TypeToken<Object>() {}, |
| TypeToken.of(Types.supertypeOf(String[].class)).getGenericSuperclass()); |
| assertEquals(new TypeToken<Object>() {}, |
| TypeToken.of(Types.supertypeOf(CharSequence.class)).getGenericSuperclass()); |
| } |
| |
| public void testGetGenericSuperclass_wildcard_boundIsClass() { |
| assertEquals(TypeToken.of(Object.class), |
| TypeToken.of(Types.subtypeOf(Object.class)).getGenericSuperclass()); |
| assertEquals(new TypeToken<Object[]>() {}, |
| TypeToken.of(Types.subtypeOf(Object[].class)).getGenericSuperclass()); |
| } |
| |
| public void testGetGenericSuperclass_wildcard_boundIsInterface() { |
| assertNull(TypeToken.of(Types.subtypeOf(CharSequence.class)).getGenericSuperclass()); |
| assertEquals(new TypeToken<CharSequence[]>() {}, |
| TypeToken.of(Types.subtypeOf(CharSequence[].class)).getGenericSuperclass()); |
| } |
| |
| public <T> void testGetGenericInterfaces_typeVariable_unbounded() { |
| ASSERT.that(TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericInterfaces()).isEmpty(); |
| assertHasArrayInterfaces(new TypeToken<T[]>() {}); |
| } |
| |
| public <T extends NoInterface> void testGetGenericInterfaces_typeVariable_boundIsClass() { |
| ASSERT.that(TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericInterfaces()).isEmpty(); |
| assertHasArrayInterfaces(new TypeToken<T[]>() {}); |
| } |
| |
| public <T extends NoInterface&Iterable<String>> |
| void testGetGenericInterfaces_typeVariable_boundsAreClassWithInterface() { |
| assertThat(TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericInterfaces()) |
| .has().exactly(new TypeToken<Iterable<String>>() {}); |
| assertHasArrayInterfaces(new TypeToken<T[]>() {}); |
| } |
| |
| public <T extends CharSequence&Iterable<String>> |
| void testGetGenericInterfaces_typeVariable_boundsAreInterfaces() { |
| assertThat(TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericInterfaces()) |
| .has().exactly(TypeToken.of(CharSequence.class), new TypeToken<Iterable<String>>() {}); |
| assertHasArrayInterfaces(new TypeToken<T[]>() {}); |
| } |
| |
| public <T extends CharSequence&Iterable<T>> |
| void testGetGenericInterfaces_typeVariable_boundsAreFBoundedInterfaces() { |
| assertThat(TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericInterfaces()) |
| .has().exactly(TypeToken.of(CharSequence.class), new TypeToken<Iterable<T>>() {}); |
| assertHasArrayInterfaces(new TypeToken<T[]>() {}); |
| } |
| |
| public <T extends Base&Iterable<T>> |
| void testGetGenericInterfaces_typeVariable_boundsAreClassWithFBoundedInterface() { |
| assertThat(TypeToken.of(new TypeCapture<T>() {}.capture()).getGenericInterfaces()) |
| .has().exactly(new TypeToken<Iterable<T>>() {}); |
| assertHasArrayInterfaces(new TypeToken<T[]>() {}); |
| } |
| |
| public <T extends NoInterface, T1 extends T, T2 extends T1> |
| void testGetGenericInterfaces_typeVariable_boundIsTypeVariableAndClass() { |
| ASSERT.that(TypeToken.of(new TypeCapture<T2>() {}.capture()).getGenericInterfaces()).isEmpty(); |
| assertHasArrayInterfaces(new TypeToken<T2[]>() {}); |
| } |
| |
| public <T extends Iterable<T>, T1 extends T, T2 extends T1> |
| void testGetGenericInterfaces_typeVariable_boundIsTypeVariableAndInterface() { |
| assertThat(TypeToken.of(new TypeCapture<T2>() {}.capture()).getGenericInterfaces()) |
| .has().exactly(TypeToken.of(new TypeCapture<T1>() {}.capture())); |
| assertHasArrayInterfaces(new TypeToken<T2[]>() {}); |
| } |
| |
| public void testGetGenericInterfaces_wildcard_lowerBounded() { |
| ASSERT.that(TypeToken.of(Types.supertypeOf(String.class)).getGenericInterfaces()).isEmpty(); |
| ASSERT.that(TypeToken.of(Types.supertypeOf(String[].class)).getGenericInterfaces()).isEmpty(); |
| } |
| |
| public void testGetGenericInterfaces_wildcard_boundIsClass() { |
| ASSERT.that(TypeToken.of(Types.subtypeOf(Object.class)).getGenericInterfaces()).isEmpty(); |
| ASSERT.that(TypeToken.of(Types.subtypeOf(Object[].class)).getGenericInterfaces()).isEmpty(); |
| } |
| |
| public void testGetGenericInterfaces_wildcard_boundIsInterface() { |
| TypeToken<Iterable<String>> interfaceType = new TypeToken<Iterable<String>>() {}; |
| assertThat(TypeToken.of(Types.subtypeOf(interfaceType.getType())).getGenericInterfaces()) |
| .has().exactly(interfaceType); |
| assertHasArrayInterfaces(new TypeToken<Iterable<String>[]>() {}); |
| } |
| |
| public void testGetGenericInterfaces_noInterface() { |
| ASSERT.that(new TypeToken<NoInterface>() {}.getGenericInterfaces()).isEmpty(); |
| assertHasArrayInterfaces(new TypeToken<NoInterface[]>() {}); |
| } |
| |
| public void testGetGenericInterfaces_withInterfaces() { |
| Map<Class<?>, Type> interfaceMap = Maps.newHashMap(); |
| for (TypeToken<?> interfaceType: |
| new TypeToken<Implementation<Integer, String>>() {}.getGenericInterfaces()) { |
| interfaceMap.put(interfaceType.getRawType(), interfaceType.getType()); |
| } |
| assertEquals(ImmutableMap.of( |
| Iterable.class, new TypeToken<Iterable<String>>() {}.getType(), |
| Map.class, new TypeToken<Map<Integer, String>>() {}.getType()), |
| interfaceMap); |
| } |
| |
| private interface Interface1 {} |
| private interface Interface2 {} |
| private interface Interface3<T> extends Iterable<T> {} |
| private interface Interface12 extends Interface1, Interface2 {} |
| private static class Class1 implements Interface1 {} |
| |
| private static final class NoInterface {} |
| |
| private abstract static class Implementation<K, V> |
| implements Iterable<V>, Map<K, V> {} |
| |
| private abstract static class First<T> {} |
| |
| private abstract static class Second<D> extends First<D> {} |
| |
| private abstract static class Third<T, D> extends Second<T> {} |
| |
| private abstract static class Fourth<T, D> extends Third<D, T> {} |
| |
| private static class ConcreteIS extends Fourth<Integer, String> {} |
| |
| private static class ConcreteSI extends Fourth<String, Integer> {} |
| |
| public void testAssignableClassToClass() { |
| @SuppressWarnings("rawtypes") // To test TypeToken<List> |
| TypeToken<List> tokL = new TypeToken<List>() {}; |
| assertTrue(tokL.isAssignableFrom(List.class)); |
| assertTrue(tokL.isAssignableFrom(ArrayList.class)); |
| assertFalse(tokL.isAssignableFrom(List[].class)); |
| |
| TypeToken<Number> tokN = new TypeToken<Number>() {}; |
| assertTrue(tokN.isAssignableFrom(Number.class)); |
| assertTrue(tokN.isAssignableFrom(Integer.class)); |
| } |
| |
| public <T> void testAssignableParameterizedTypeToObject() { |
| assertTrue(TypeToken.of(Object.class).isAssignableFrom( |
| TypeToken.of(new TypeCapture<T>() {}.capture()))); |
| assertFalse(TypeToken.of(int.class).isAssignableFrom( |
| TypeToken.of(new TypeCapture<T>() {}.capture()))); |
| } |
| |
| public <T, T1 extends T> void testAssignableGenericArrayToGenericArray() { |
| assertTrue(new TypeToken<T[]>() {}.isAssignableFrom(new TypeToken<T[]>() {})); |
| assertTrue(new TypeToken<T[]>() {}.isAssignableFrom(new TypeToken<T1[]>() {})); |
| assertFalse(new TypeToken<T[]>() {}.isAssignableFrom(new TypeToken<T[][]>() {})); |
| } |
| |
| public void testAssignableWildcardBoundedByArrayToArrayClass() throws Exception { |
| Type wildcardType = Types.subtypeOf(Object[].class); |
| assertTrue(TypeToken.of(Object[].class).isAssignableFrom(wildcardType)); |
| assertTrue(TypeToken.of(Object.class).isAssignableFrom(wildcardType)); |
| assertTrue(TypeToken.of(wildcardType).isAssignableFrom(wildcardType)); |
| assertFalse(TypeToken.of(int[].class).isAssignableFrom(wildcardType)); |
| } |
| |
| public void testAssignableArrayClassToBoundedWildcard() throws Exception { |
| TypeToken<?> upperBounded = TypeToken.of(Types.subtypeOf(Object[].class)); |
| TypeToken<?> lowerBounded = TypeToken.of(Types.supertypeOf(Object[].class)); |
| assertTrue(upperBounded.isAssignableFrom(Object[].class)); |
| assertTrue(upperBounded.isAssignableFrom(Object[][].class)); |
| assertTrue(upperBounded.isAssignableFrom(String[].class)); |
| assertTrue(lowerBounded.isAssignableFrom(Object[].class)); |
| assertTrue(lowerBounded.isAssignableFrom(Object.class)); |
| assertFalse(lowerBounded.isAssignableFrom(Object[][].class)); |
| assertFalse(lowerBounded.isAssignableFrom(String[].class)); |
| } |
| |
| public void testAssignableWildcardBoundedByIntArrayToArrayClass() throws Exception { |
| Type wildcardType = Types.subtypeOf(int[].class); |
| assertTrue(TypeToken.of(int[].class).isAssignableFrom(wildcardType)); |
| assertTrue(TypeToken.of(Object.class).isAssignableFrom(wildcardType)); |
| assertTrue(TypeToken.of(wildcardType).isAssignableFrom(wildcardType)); |
| assertFalse(TypeToken.of(Object[].class).isAssignableFrom(wildcardType)); |
| } |
| |
| public void testAssignableWildcardToWildcard() throws Exception { |
| TypeToken<?> upperBounded = TypeToken.of(Types.subtypeOf(Object[].class)); |
| TypeToken<?> lowerBounded = TypeToken.of(Types.supertypeOf(Object[].class)); |
| assertFalse(lowerBounded.isAssignableFrom(upperBounded)); |
| assertTrue(lowerBounded.isAssignableFrom(lowerBounded)); |
| assertTrue(upperBounded.isAssignableFrom(upperBounded)); |
| assertFalse(upperBounded.isAssignableFrom(lowerBounded)); |
| } |
| |
| public <T> void testAssignableGenericArrayToArrayClass() { |
| assertTrue(TypeToken.of(Object[].class).isAssignableFrom(new TypeToken<T[]>() {})); |
| assertTrue(TypeToken.of(Object[].class).isAssignableFrom(new TypeToken<T[][]>() {})); |
| assertTrue(TypeToken.of(Object[][].class).isAssignableFrom(new TypeToken<T[][]>() {})); |
| } |
| |
| public void testAssignableParameterizedTypeToClass() { |
| @SuppressWarnings("rawtypes") // Trying to test raw class |
| TypeToken<List> tokL = new TypeToken<List>() {}; |
| assertTrue(tokL.isAssignableFrom(StringList.class)); |
| assertTrue(tokL.isAssignableFrom( |
| StringList.class.getGenericInterfaces()[0])); |
| |
| @SuppressWarnings("rawtypes") // Trying to test raw class |
| TypeToken<Second> tokS = new TypeToken<Second>() {}; |
| assertTrue(tokS.isAssignableFrom(Second.class)); |
| assertTrue(tokS.isAssignableFrom(Third.class.getGenericSuperclass())); |
| } |
| |
| public void testAssignableArrayToClass() throws Exception { |
| @SuppressWarnings("rawtypes") // Trying to test raw class |
| TypeToken<List[]> tokL = new TypeToken<List[]>() {}; |
| assertTrue(tokL.isAssignableFrom(List[].class)); |
| assertFalse(tokL.isAssignableFrom(List.class)); |
| |
| @SuppressWarnings("rawtypes") // Trying to test raw class |
| TypeToken<Second[]> tokS = new TypeToken<Second[]>() {}; |
| assertTrue(tokS.isAssignableFrom(Second[].class)); |
| assertTrue(tokS.isAssignableFrom(Third[].class)); |
| } |
| |
| @SuppressWarnings("rawtypes") // Trying to test raw class |
| public void testAssignableTokenToClass() { |
| TypeToken<List> tokL = new TypeToken<List>() {}; |
| assertTrue(tokL.isAssignableFrom(new TypeToken<List>() {})); |
| assertTrue(tokL.isAssignableFrom(new TypeToken<List<String>>() {})); |
| assertTrue(tokL.isAssignableFrom(new TypeToken<List<?>>() {})); |
| |
| TypeToken<Second> tokS = new TypeToken<Second>() {}; |
| assertTrue(tokS.isAssignableFrom(new TypeToken<Second>() {})); |
| assertTrue(tokS.isAssignableFrom(new TypeToken<Third>() {})); |
| assertTrue(tokS.isAssignableFrom( |
| new TypeToken<Third<String, Integer>>() {})); |
| |
| TypeToken<List[]> tokA = new TypeToken<List[]>() {}; |
| assertTrue(tokA.isAssignableFrom(new TypeToken<List[]>() {})); |
| assertTrue(tokA.isAssignableFrom(new TypeToken<List<String>[]>() {})); |
| assertTrue(tokA.isAssignableFrom(new TypeToken<List<?>[]>() {})); |
| } |
| |
| public void testAssignableClassToType() { |
| TypeToken<List<String>> tokenL = new TypeToken<List<String>>() {}; |
| assertTrue(tokenL.isAssignableFrom(StringList.class)); |
| assertFalse(tokenL.isAssignableFrom(List.class)); |
| |
| TypeToken<First<String>> tokenF = new TypeToken<First<String>>() {}; |
| assertTrue(tokenF.isAssignableFrom(ConcreteIS.class)); |
| assertFalse(tokenF.isAssignableFrom(ConcreteSI.class)); |
| } |
| |
| public void testAssignableClassToArrayType() { |
| TypeToken<List<String>[]> tokenL = new TypeToken<List<String>[]>() {}; |
| assertTrue(tokenL.isAssignableFrom(StringList[].class)); |
| assertFalse(tokenL.isAssignableFrom(List[].class)); |
| } |
| |
| public void testAssignableParameterizedTypeToType() { |
| TypeToken<List<String>> tokenL = new TypeToken<List<String>>() {}; |
| assertTrue(tokenL.isAssignableFrom( |
| StringList.class.getGenericInterfaces()[0])); |
| assertFalse(tokenL.isAssignableFrom( |
| IntegerList.class.getGenericInterfaces()[0])); |
| |
| TypeToken<First<String>> tokenF = new TypeToken<First<String>>() {}; |
| assertTrue(tokenF.isAssignableFrom( |
| ConcreteIS.class.getGenericSuperclass())); |
| assertFalse(tokenF.isAssignableFrom( |
| ConcreteSI.class.getGenericSuperclass())); |
| } |
| |
| public void testGenericArrayTypeToArrayType() throws Exception { |
| TypeToken<List<String>[]> tokL = new TypeToken<List<String>[]>() {}; |
| TypeToken<ArrayList<String>[]> token = |
| new TypeToken<ArrayList<String>[]>() {}; |
| assertTrue(tokL.isAssignableFrom(tokL.getType())); |
| assertTrue(tokL.isAssignableFrom(token.getType())); |
| } |
| |
| public void testAssignableTokenToType() { |
| TypeToken<List<String>> tokenL = new TypeToken<List<String>>() {}; |
| assertTrue(tokenL.isAssignableFrom(new TypeToken<List<String>>() {})); |
| assertTrue(tokenL.isAssignableFrom(new TypeToken<ArrayList<String>>() {})); |
| assertTrue(tokenL.isAssignableFrom(new TypeToken<StringList>() {})); |
| |
| TypeToken<First<String>> tokenF = new TypeToken<First<String>>() {}; |
| assertTrue(tokenF.isAssignableFrom(new TypeToken<Second<String>>() {})); |
| assertTrue(tokenF.isAssignableFrom( |
| new TypeToken<Third<String, Integer>>() {})); |
| assertFalse(tokenF.isAssignableFrom( |
| new TypeToken<Third<Integer, String>>() {})); |
| assertTrue(tokenF.isAssignableFrom( |
| new TypeToken<Fourth<Integer, String>>() {})); |
| assertFalse(tokenF.isAssignableFrom( |
| new TypeToken<Fourth<String, Integer>>() {})); |
| assertTrue(tokenF.isAssignableFrom(new TypeToken<ConcreteIS>() {})); |
| assertFalse(tokenF.isAssignableFrom(new TypeToken<ConcreteSI>() {})); |
| } |
| |
| public void testAssignableWithWildcards() { |
| TypeToken<?> unboundedToken = new TypeToken<List<?>>() {}; |
| TypeToken<?> upperBoundToken = new TypeToken<List<? extends Number>>() {}; |
| TypeToken<?> lowerBoundToken = new TypeToken<List<? super Number>>() {}; |
| TypeToken<?> concreteToken = new TypeToken<List<Number>>() {}; |
| TypeToken<?> subtypeToken = new TypeToken<List<Integer>>() {}; |
| TypeToken<?> supertypeToken = new TypeToken<List<Serializable>>() {}; |
| List<TypeToken<?>> allTokens = ImmutableList.of( |
| unboundedToken, upperBoundToken, lowerBoundToken, |
| concreteToken, subtypeToken, supertypeToken); |
| |
| for (TypeToken<?> typeToken : allTokens) { |
| assertTrue(typeToken.toString(), unboundedToken.isAssignableFrom(typeToken)); |
| } |
| |
| assertFalse(upperBoundToken.isAssignableFrom(unboundedToken)); |
| assertTrue(upperBoundToken.isAssignableFrom(upperBoundToken)); |
| assertFalse(upperBoundToken.isAssignableFrom(lowerBoundToken)); |
| assertTrue(upperBoundToken.isAssignableFrom(concreteToken)); |
| assertTrue(upperBoundToken.isAssignableFrom(subtypeToken)); |
| assertFalse(upperBoundToken.isAssignableFrom(supertypeToken)); |
| |
| assertFalse(lowerBoundToken.isAssignableFrom(unboundedToken)); |
| assertFalse(lowerBoundToken.isAssignableFrom(upperBoundToken)); |
| assertTrue(lowerBoundToken.isAssignableFrom(lowerBoundToken)); |
| assertTrue(lowerBoundToken.isAssignableFrom(concreteToken)); |
| assertFalse(lowerBoundToken.isAssignableFrom(subtypeToken)); |
| assertTrue(lowerBoundToken.isAssignableFrom(supertypeToken)); |
| |
| for (TypeToken<?> typeToken : allTokens) { |
| assertEquals(typeToken.toString(), |
| typeToken == concreteToken, concreteToken.isAssignableFrom(typeToken)); |
| } |
| |
| for (TypeToken<?> typeToken : allTokens) { |
| assertEquals(typeToken.toString(), |
| typeToken == subtypeToken, subtypeToken.isAssignableFrom(typeToken)); |
| } |
| |
| for (TypeToken<?> typeToken : allTokens) { |
| assertEquals(typeToken.toString(), |
| typeToken == supertypeToken, supertypeToken.isAssignableFrom(typeToken)); |
| } |
| } |
| |
| public <N1 extends Number, N2 extends Number, N11 extends N1> |
| void testIsAssignableFrom_typeVariable() { |
| assertAssignable(TypeToken.of(new TypeCapture<N1>() {}.capture()), |
| TypeToken.of(new TypeCapture<N1>() {}.capture())); |
| assertNotAssignable(new TypeToken<List<N11>>() {}, |
| new TypeToken<List<N1>>() {}); |
| assertNotAssignable(new TypeToken<Number>() {}, |
| TypeToken.of(new TypeCapture<N1>() {}.capture())); |
| assertAssignable(TypeToken.of(new TypeCapture<N11>() {}.capture()), |
| TypeToken.of(new TypeCapture<N1>() {}.capture())); |
| assertNotAssignable(TypeToken.of(new TypeCapture<N2>() {}.capture()), |
| TypeToken.of(new TypeCapture<N1>() {}.capture())); |
| } |
| |
| public <N1 extends Number, N2 extends Number, N11 extends N1> |
| void testIsAssignableFrom_equalWildcardTypes() { |
| assertAssignable(new TypeToken<List<? extends N1>>() {}, |
| new TypeToken<List<? extends N1>>() {}); |
| assertAssignable(new TypeToken<List<? super N1>>() {}, |
| new TypeToken<List<? super N1>>() {}); |
| assertAssignable(new TypeToken<List<? extends Number>>() {}, |
| new TypeToken<List<? extends Number>>() {}); |
| assertAssignable(new TypeToken<List<? super Number>>() {}, |
| new TypeToken<List<? super Number>>() {}); |
| } |
| |
| public <N> void testIsAssignableFrom_wildcard_noBound() { |
| assertAssignable(new TypeToken<List<? super N>>() {}, |
| new TypeToken<List<?>>() {}); |
| assertAssignable(new TypeToken<List<N>>() {}, |
| new TypeToken<List<?>>() {}); |
| } |
| |
| public <N1 extends Number, N2 extends Number, N11 extends N1> |
| void testIsAssignableFrom_wildcardType_upperBoundMatch() { |
| // ? extends T |
| assertAssignable(new TypeToken<List<N11>>() {}, |
| new TypeToken<List<? extends N1>>() {}); |
| assertNotAssignable(new TypeToken<List<N1>>() {}, |
| new TypeToken<List<? extends N11>>() {}); |
| assertNotAssignable(new TypeToken<List<Number>>() {}, |
| new TypeToken<List<? extends N11>>() {}); |
| |
| // ? extends Number |
| assertAssignable(new TypeToken<List<N1>>() {}, |
| new TypeToken<List<? extends Number>>() {}); |
| assertAssignable(new TypeToken<ArrayList<N1>>() {}, |
| new TypeToken<List<? extends Number>>() {}); |
| assertAssignable(new TypeToken<List<? extends N11>>() {}, |
| new TypeToken<List<? extends Number>>() {}); |
| } |
| |
| public <N1 extends Number, N2 extends Number, N11 extends N1> |
| void testIsAssignableFrom_wildcardType_lowerBoundMatch() { |
| // ? super T |
| assertAssignable(new TypeToken<List<N1>>() {}, |
| new TypeToken<List<? super N11>>() {}); |
| assertAssignable(new TypeToken<ArrayList<Number>>() {}, |
| new TypeToken<List<? super N1>>() {}); |
| assertNotAssignable(new TypeToken<ArrayList<? super N11>>() {}, |
| new TypeToken<List<? super Number>>() {}); |
| assertAssignable(new TypeToken<ArrayList<? super N1>>() {}, |
| new TypeToken<List<? super N11>>() {}); |
| assertAssignable(new TypeToken<ArrayList<? super Number>>() {}, |
| new TypeToken<List<? super N11>>() {}); |
| |
| // ? super Number |
| assertNotAssignable(new TypeToken<ArrayList<N11>>() {}, |
| new TypeToken<List<? super Number>>() {}); |
| assertAssignable(new TypeToken<ArrayList<Number>>() {}, |
| new TypeToken<List<? super Number>>() {}); |
| assertAssignable(new TypeToken<ArrayList<Object>>() {}, |
| new TypeToken<List<? super Number>>() {}); |
| } |
| |
| public <L extends List<R>, R extends List<L>> |
| void testIsAssignableFrom_recursiveTypeVariableBounds() { |
| assertAssignable(TypeToken.of(new TypeCapture<L>() {}.capture()), |
| TypeToken.of(new TypeCapture<L>() {}.capture())); |
| assertNotAssignable(TypeToken.of(new TypeCapture<R>() {}.capture()), |
| TypeToken.of(new TypeCapture<L>() {}.capture())); |
| assertAssignable(TypeToken.of(new TypeCapture<L>() {}.capture()), |
| new TypeToken<List<R>>() {}); |
| } |
| |
| public void testIsAssignableFrom_resolved() { |
| assertFalse(Assignability.of().isAssignable()); |
| assertTrue(new Assignability<Integer, Integer>() {}.isAssignable()); |
| assertTrue(new Assignability<Integer, Object>() {}.isAssignable()); |
| assertFalse(new Assignability<Integer, String>() {}.isAssignable()); |
| TypeTokenTest.<Number, Integer>assignabilityTestWithTypeVariables(); |
| } |
| |
| private static <N1 extends Number, N11 extends N1> |
| void assignabilityTestWithTypeVariables() { |
| assertTrue(new Assignability<N11, N1>() {}.isAssignable()); |
| assertTrue(new Assignability<N11, Number>() {}.isAssignable()); |
| assertFalse(new Assignability<Number, N11>() {}.isAssignable()); |
| } |
| |
| public void testIsArray_arrayClasses() { |
| assertTrue(TypeToken.of(Object[].class).isArray()); |
| assertTrue(TypeToken.of(Object[][].class).isArray()); |
| assertTrue(TypeToken.of(char[].class).isArray()); |
| assertTrue(TypeToken.of(char[][].class).isArray()); |
| assertTrue(TypeToken.of(byte[].class).isArray()); |
| assertTrue(TypeToken.of(short[].class).isArray()); |
| assertTrue(TypeToken.of(int[].class).isArray()); |
| assertTrue(TypeToken.of(long[].class).isArray()); |
| assertTrue(TypeToken.of(float[].class).isArray()); |
| assertTrue(TypeToken.of(double[].class).isArray()); |
| assertFalse(TypeToken.of(Object.class).isArray()); |
| assertFalse(TypeToken.of(void.class).isArray()); |
| } |
| |
| public <T> void testIsArray_genericArrayClasses() { |
| assertFalse(TypeToken.of(new TypeCapture<T>() {}.capture()).isArray()); |
| assertTrue(new TypeToken<T[]>() {}.isArray()); |
| assertTrue(new TypeToken<T[][]>() {}.isArray()); |
| } |
| |
| public void testIsArray_wildcardType() throws Exception { |
| assertTrue(TypeToken.of(Types.subtypeOf(Object[].class)).isArray()); |
| assertTrue(TypeToken.of(Types.subtypeOf(int[].class)).isArray()); |
| assertFalse(TypeToken.of(Types.subtypeOf(Object.class)).isArray()); |
| assertFalse(TypeToken.of(Types.supertypeOf(Object[].class)).isArray()); |
| } |
| |
| public <T extends Integer> void testPrimitiveWrappingAndUnwrapping() { |
| for (Class<?> type : Primitives.allPrimitiveTypes()) { |
| assertIsPrimitive(TypeToken.of(type)); |
| } |
| for (Class<?> type : Primitives.allWrapperTypes()) { |
| assertIsWrapper(TypeToken.of(type)); |
| } |
| assertNotPrimitiveNorWrapper(TypeToken.of(String.class)); |
| assertNotPrimitiveNorWrapper(TypeToken.of(Object[].class)); |
| assertNotPrimitiveNorWrapper(TypeToken.of(Types.subtypeOf(Object.class))); |
| assertNotPrimitiveNorWrapper(new TypeToken<List<String>>() {}); |
| assertNotPrimitiveNorWrapper(TypeToken.of(new TypeCapture<T>() {}.capture())); |
| } |
| |
| public void testGetComponentType_arrayClasses() { |
| assertEquals(Object.class, TypeToken.of(Object[].class).getComponentType().getType()); |
| assertEquals(Object[].class, TypeToken.of(Object[][].class).getComponentType().getType()); |
| assertEquals(char.class, TypeToken.of(char[].class).getComponentType().getType()); |
| assertEquals(char[].class, TypeToken.of(char[][].class).getComponentType().getType()); |
| assertEquals(byte.class, TypeToken.of(byte[].class).getComponentType().getType()); |
| assertEquals(short.class, TypeToken.of(short[].class).getComponentType().getType()); |
| assertEquals(int.class, TypeToken.of(int[].class).getComponentType().getType()); |
| assertEquals(long.class, TypeToken.of(long[].class).getComponentType().getType()); |
| assertEquals(float.class, TypeToken.of(float[].class).getComponentType().getType()); |
| assertEquals(double.class, TypeToken.of(double[].class).getComponentType().getType()); |
| assertNull(TypeToken.of(Object.class).getComponentType()); |
| assertNull(TypeToken.of(void.class).getComponentType()); |
| } |
| |
| public <T> void testGetComponentType_genericArrayClasses() { |
| assertNull(TypeToken.of(new TypeCapture<T>() {}.capture()).getComponentType()); |
| assertEquals(TypeToken.of(new TypeCapture<T>() {}.capture()), |
| new TypeToken<T[]>() {}.getComponentType()); |
| assertEquals(new TypeToken<T[]>() {}, new TypeToken<T[][]>() {}.getComponentType()); |
| } |
| |
| public void testGetComponentType_wildcardType() throws Exception { |
| assertEquals(Types.subtypeOf(Object.class), |
| TypeToken.of(Types.subtypeOf(Object[].class)).getComponentType().getType()); |
| assertEquals(Types.subtypeOf(Object[].class), |
| Types.newArrayType( |
| TypeToken.of(Types.subtypeOf(Object[].class)).getComponentType().getType())); |
| assertEquals(int.class, |
| TypeToken.of(Types.subtypeOf(int[].class)).getComponentType().getType()); |
| assertNull(TypeToken.of(Types.subtypeOf(Object.class)).getComponentType()); |
| assertNull(TypeToken.of(Types.supertypeOf(Object[].class)).getComponentType()); |
| } |
| |
| private interface NumberList<T extends Number> {} |
| |
| public void testImplicitUpperBoundForWildcards() { |
| assertAssignable( |
| new TypeToken<NumberList<? extends Number>>() {}, |
| new TypeToken<NumberList<?>>() {}); |
| assertAssignable( |
| new TypeToken<NumberList<? super Integer>>() {}, |
| new TypeToken<NumberList<?>>() {}); |
| } |
| |
| public <T extends Readable & Appendable> void testMultiBound() { |
| assertAssignable(new TypeToken<List<T>>() {}, |
| new TypeToken<List<? extends Readable>>() {}); |
| assertAssignable(new TypeToken<List<T>>() {}, |
| new TypeToken<List<? extends Appendable>>() {}); |
| } |
| |
| public void testToGenericType() { |
| assertEquals(TypeToken.of(String.class), TypeToken.toGenericType(String.class)); |
| assertEquals(new TypeToken<int[]>() {}, TypeToken.toGenericType(int[].class)); |
| @SuppressWarnings("rawtypes") // Iterable.class |
| TypeToken<? extends Iterable> genericType = TypeToken.toGenericType(Iterable.class); |
| assertEquals(Iterable.class, genericType.getRawType()); |
| assertEquals(Types.newParameterizedType(Iterable.class, Iterable.class.getTypeParameters()[0]), |
| genericType.getType()); |
| } |
| |
| private interface ListIterable<T> extends Iterable<List<T>> {} |
| private interface StringListIterable extends ListIterable<String> {} |
| private interface ListArrayIterable<T> extends Iterable<List<T>[]> {} |
| private interface StringListArrayIterable extends ListIterable<String> {} |
| |
| public void testGetSupertype_withTypeVariable() { |
| ParameterizedType expectedType = Types.newParameterizedType(Iterable.class, |
| Types.newParameterizedType(List.class, ListIterable.class.getTypeParameters()[0])); |
| assertEquals(expectedType, |
| TypeToken.of(ListIterable.class).getSupertype(Iterable.class).getType()); |
| } |
| |
| public void testGetSupertype_withoutTypeVariable() { |
| ParameterizedType expectedType = Types.newParameterizedType(Iterable.class, |
| Types.newParameterizedType(List.class, String.class)); |
| assertEquals(expectedType, |
| TypeToken.of(StringListIterable.class).getSupertype(Iterable.class).getType()); |
| } |
| |
| public void testGetSupertype_chained() { |
| @SuppressWarnings("unchecked") // StringListIterable extensd ListIterable<String> |
| TypeToken<ListIterable<String>> listIterableType = (TypeToken<ListIterable<String>>) |
| TypeToken.of(StringListIterable.class).getSupertype(ListIterable.class); |
| ParameterizedType expectedType = Types.newParameterizedType(Iterable.class, |
| Types.newParameterizedType(List.class, String.class)); |
| assertEquals(expectedType, listIterableType.getSupertype(Iterable.class).getType()); |
| } |
| |
| public void testGetSupertype_withArray() { |
| assertEquals(new TypeToken<Iterable<List<String>>[]>() {}, |
| TypeToken.of(StringListIterable[].class).getSupertype(Iterable[].class)); |
| assertEquals(int[].class, TypeToken.of(int[].class).getSupertype(int[].class).getType()); |
| assertEquals(Object.class, TypeToken.of(int[].class).getSupertype(Object.class).getType()); |
| assertEquals(int[][].class, TypeToken.of(int[][].class).getSupertype(int[][].class).getType()); |
| assertEquals(Object[].class, |
| TypeToken.of(String[].class).getSupertype(Object[].class).getType()); |
| assertEquals(Object.class, TypeToken.of(String[].class).getSupertype(Object.class).getType()); |
| } |
| |
| public void testGetSupertype_fromWildcard() { |
| @SuppressWarnings("unchecked") // can't do new TypeToken<? extends ...>() {} |
| TypeToken<? extends List<String>> type = (TypeToken<? extends List<String>>) |
| TypeToken.of(Types.subtypeOf(new TypeToken<List<String>>() {}.getType())); |
| assertEquals(new TypeToken<Iterable<String>>() {}, type.getSupertype(Iterable.class)); |
| } |
| |
| public <T extends Iterable<String>> void testGetSupertype_fromTypeVariable() { |
| @SuppressWarnings("unchecked") // to construct TypeToken<T> from TypeToken.of() |
| TypeToken<T> typeVariableToken = (TypeToken<T>) TypeToken.of(new TypeCapture<T>() {}.capture()); |
| assertEquals(new TypeToken<Iterable<String>>() {}, |
| typeVariableToken.getSupertype(Iterable.class)); |
| } |
| |
| @SuppressWarnings("rawtypes") // purpose is to test raw type |
| public void testGetSupertype_fromRawClass() { |
| assertEquals(Types.newParameterizedType(Iterable.class, List.class.getTypeParameters()[0]), |
| new TypeToken<List>() {}.getSupertype(Iterable.class).getType()); |
| } |
| |
| @SuppressWarnings({"rawtypes", "unchecked"}) // purpose is to test raw type |
| public void testGetSupertype_notSupertype() { |
| try { |
| new TypeToken<List<String>>() {}.getSupertype((Class) String.class); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| public void testGetSupertype_fromArray() { |
| assertEquals(new TypeToken<Iterable<String>[]>() {}, |
| new TypeToken<List<String>[]>() {}.getSupertype(Iterable[].class)); |
| } |
| |
| private interface ListMap<K, V> extends Map<K, List<V>> {} |
| |
| public void testGetSupertype_fullyGenericType() { |
| ParameterizedType expectedType = Types.newParameterizedType(Map.class, |
| ListMap.class.getTypeParameters()[0], |
| Types.newParameterizedType(List.class, ListMap.class.getTypeParameters()[1])); |
| assertEquals(expectedType, |
| TypeToken.of(ListMap.class).getSupertype(Map.class).getType()); |
| } |
| |
| public void testGetSupertype_fullySpecializedType() { |
| Type expectedType = new TypeToken<Map<String, List<Object>>>() {}.getType(); |
| assertEquals(expectedType, |
| new TypeToken<ListMap<String, Object>>() {}.getSupertype(Map.class).getType()); |
| } |
| |
| private interface StringListMap<V> extends ListMap<String, V> {} |
| |
| public <V> void testGetSupertype_partiallySpecializedType() { |
| Type expectedType = new TypeToken<Map<String, List<V>>>() {}.getType(); |
| assertEquals(expectedType, |
| new TypeToken<StringListMap<V>>() {}.getSupertype(Map.class).getType()); |
| } |
| |
| public void testGetSubtype_withTypeVariable() { |
| assertEquals(new TypeToken<ListIterable<String>>() {}, |
| new TypeToken<Iterable<List<String>>>() {}.getSubtype(ListIterable.class)); |
| assertEquals(new TypeToken<ListArrayIterable<String>>() {}, |
| new TypeToken<Iterable<List<String>[]>>() {}.getSubtype(ListArrayIterable.class)); |
| assertEquals(new TypeToken<ListArrayIterable<String>[]>() {}, |
| new TypeToken<Iterable<List<String>[]>[]>() {}.getSubtype(ListArrayIterable[].class)); |
| } |
| |
| public void testGetSubtype_withoutTypeVariable() { |
| assertEquals(StringListIterable.class, |
| TypeToken.of(Iterable.class).getSubtype(StringListIterable.class).getType()); |
| assertEquals(StringListIterable[].class, |
| TypeToken.of(Iterable[].class).getSubtype(StringListIterable[].class).getType()); |
| assertEquals(TypeToken.of(StringListArrayIterable.class), |
| new TypeToken<Iterable<List<String>>>() {}.getSubtype(StringListArrayIterable.class)); |
| assertEquals(TypeToken.of(StringListArrayIterable[].class), |
| new TypeToken<Iterable<List<String>>[]>() {}.getSubtype(StringListArrayIterable[].class)); |
| } |
| |
| public void testGetSubtype_withArray() { |
| assertEquals(TypeToken.of(StringListIterable[].class), |
| TypeToken.of(Iterable[].class).getSubtype(StringListIterable[].class)); |
| assertEquals(TypeToken.of(String[].class), |
| TypeToken.of(Object[].class).getSubtype(String[].class)); |
| assertEquals(TypeToken.of(int[].class), |
| TypeToken.of(Object.class).getSubtype(int[].class)); |
| } |
| |
| public void testGetSubtype_fromWildcard() { |
| @SuppressWarnings("unchecked") // can't do new TypeToken<? extends ...>() {} |
| TypeToken<? super Iterable<String>> type = (TypeToken<? super Iterable<String>>) |
| TypeToken.of(Types.supertypeOf(new TypeToken<Iterable<String>>() {}.getType())); |
| assertEquals(new TypeToken<List<String>>() {}, type.getSubtype(List.class)); |
| } |
| |
| public void testGetSubtype_fromWildcard_lowerBoundNotSupertype() { |
| @SuppressWarnings("unchecked") // can't do new TypeToken<? extends ...>() {} |
| TypeToken<? super Iterable<String>> type = (TypeToken<? super Iterable<String>>) |
| TypeToken.of(Types.supertypeOf(new TypeToken<ImmutableList<String>>() {}.getType())); |
| try { |
| type.getSubtype(List.class); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| public void testGetSubtype_fromWildcard_upperBounded() { |
| @SuppressWarnings("unchecked") // can't do new TypeToken<? extends ...>() {} |
| TypeToken<? extends Iterable<String>> type = (TypeToken<? extends Iterable<String>>) |
| TypeToken.of(Types.subtypeOf(new TypeToken<Iterable<String>>() {}.getType())); |
| try { |
| type.getSubtype(Iterable.class); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| public <T extends Iterable<String>> void testGetSubtype_fromTypeVariable() { |
| try { |
| TypeToken.of(new TypeCapture<T>() {}.capture()).getSubtype(List.class); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| @SuppressWarnings("rawtypes") // purpose is to test raw type |
| public void testGetSubtype_fromRawClass() { |
| assertEquals(List.class, new TypeToken<Iterable>() {}.getSubtype(List.class).getType()); |
| } |
| |
| public void testGetSubtype_fromArray() { |
| assertEquals(new TypeToken<List<String>[]>() {}, |
| new TypeToken<Iterable<String>[]>() {}.getSubtype(List[].class)); |
| } |
| |
| @SuppressWarnings("unchecked") // To construct TypeToken<T> with TypeToken.of() |
| public <T> void testWhere_circleRejected() { |
| TypeToken<List<T>> type = new TypeToken<List<T>>() {}; |
| try { |
| type.where(new TypeParameter<T>() {}, |
| (TypeToken<T>) TypeToken.of(new TypeCapture<T>() {}.capture())); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| public void testWhere() { |
| assertEquals( |
| new TypeToken<Map<String, Integer>>() {}, |
| mapOf(String.class, Integer.class)); |
| assertEquals(new TypeToken<int[]>() {}, arrayOf(int.class)); |
| assertEquals(int[].class, arrayOf(int.class).getRawType()); |
| } |
| |
| @SuppressWarnings("unused") // used by reflection |
| private static class Holder<T> { |
| T element; |
| List<T> list; |
| List<T>[] matrix; |
| |
| void setList(List<T> list) { |
| this.list = list; |
| } |
| } |
| |
| public void testWildcardCaptured_methodParameter_upperBound() throws Exception { |
| TypeToken<Holder<?>> type = new TypeToken<Holder<?>>() {}; |
| TypeToken<?> parameterType = type.resolveType( |
| Holder.class.getDeclaredMethod("setList", List.class).getGenericParameterTypes()[0]); |
| assertEquals(List.class, parameterType.getRawType()); |
| assertFalse(parameterType.getType().toString(), |
| parameterType.isAssignableFrom(new TypeToken<List<Integer>>() {})); |
| } |
| |
| public void testWildcardCaptured_field_upperBound() throws Exception { |
| TypeToken<Holder<?>> type = new TypeToken<Holder<?>>() {}; |
| TypeToken<?> matrixType = type.resolveType( |
| Holder.class.getDeclaredField("matrix").getGenericType()); |
| assertEquals(List[].class, matrixType.getRawType()); |
| ASSERT.that(matrixType.getType()) |
| .isNotEqualTo(new TypeToken<List<?>[]>() {}.getType()); |
| } |
| |
| public void testArrayClassPreserved() { |
| assertEquals(int[].class, TypeToken.of(int[].class).getType()); |
| assertEquals(int[][].class, TypeToken.of(int[][].class).getType()); |
| assertEquals(String[].class, TypeToken.of(String[].class).getType()); |
| assertEquals(Integer.class, new TypeToken<Integer>() {}.getType()); |
| assertEquals(Integer.class, TypeToken.of(Integer.class).getType()); |
| } |
| |
| public void testMethod_getOwnerType() throws NoSuchMethodException { |
| Method sizeMethod = List.class.getMethod("size"); |
| assertEquals(TypeToken.of(List.class), |
| TypeToken.of(List.class).method(sizeMethod).getOwnerType()); |
| assertEquals(new TypeToken<List<String>>() {}, |
| new TypeToken<List<String>>() {}.method(sizeMethod).getOwnerType()); |
| } |
| |
| public void testMethod_notDeclaredByType() throws NoSuchMethodException { |
| Method sizeMethod = Map.class.getMethod("size"); |
| try { |
| TypeToken.of(List.class).method(sizeMethod); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| public void testMethod_declaredBySuperclass() throws Exception { |
| Method toStringMethod = Object.class.getMethod("toString"); |
| ImmutableList<String> list = ImmutableList.of("foo"); |
| assertEquals(list.toString(), TypeToken.of(List.class).method(toStringMethod).invoke(list)); |
| } |
| |
| public <T extends Number & List<String>> void testMethod_returnType_resolvedAgainstTypeBound() |
| throws NoSuchMethodException { |
| Method getMethod = List.class.getMethod("get", int.class); |
| Invokable<T, String> invokable = new TypeToken<T>(getClass()) {} |
| .method(getMethod) |
| .returning(String.class); |
| assertEquals(TypeToken.of(String.class), invokable.getReturnType()); |
| } |
| |
| public <T extends List<String>> void testMethod_parameterTypes() |
| throws NoSuchMethodException { |
| Method setMethod = List.class.getMethod("set", int.class, Object.class); |
| Invokable<T, ?> invokable = new TypeToken<T>(getClass()) {}.method(setMethod); |
| ImmutableList<Parameter> params = invokable.getParameters(); |
| assertEquals(2, params.size()); |
| assertEquals(TypeToken.of(int.class), params.get(0).getType()); |
| assertEquals(TypeToken.of(String.class), params.get(1).getType()); |
| } |
| |
| public void testMethod_equals() throws NoSuchMethodException { |
| Method getMethod = List.class.getMethod("get", int.class); |
| Method setMethod = List.class.getMethod("set", int.class, Object.class); |
| new EqualsTester() |
| .addEqualityGroup(Invokable.from(getMethod), Invokable.from(getMethod)) |
| .addEqualityGroup(Invokable.from(setMethod)) |
| .addEqualityGroup(new TypeToken<List<Integer>>() {}.method(getMethod)) |
| .addEqualityGroup(new TypeToken<List<String>>() {}.method(getMethod)) |
| .addEqualityGroup(new TypeToken<List<Integer>>() {}.method(setMethod)) |
| .addEqualityGroup(new TypeToken<List<String>>() {}.method(setMethod)) |
| .testEquals(); |
| } |
| |
| private interface Loser<E extends Throwable> { |
| void lose() throws E; |
| } |
| |
| public <T extends Loser<AssertionError>> void testMethod_exceptionTypes() |
| throws NoSuchMethodException { |
| Method failMethod = Loser.class.getMethod("lose"); |
| Invokable<T, ?> invokable = new TypeToken<T>(getClass()) {}.method(failMethod); |
| ASSERT.that(invokable.getExceptionTypes()).has().item(TypeToken.of(AssertionError.class)); |
| } |
| |
| public void testConstructor_getOwnerType() throws NoSuchMethodException { |
| @SuppressWarnings("rawtypes") // raw class ArrayList.class |
| Constructor<ArrayList> constructor = ArrayList.class.getConstructor(); |
| assertEquals(TypeToken.of(ArrayList.class), |
| TypeToken.of(ArrayList.class).constructor(constructor).getOwnerType()); |
| assertEquals(new TypeToken<ArrayList<String>>() {}, |
| new TypeToken<ArrayList<String>>() {}.constructor(constructor).getOwnerType()); |
| } |
| |
| public void testConstructor_notDeclaredByType() throws NoSuchMethodException { |
| Constructor<String> constructor = String.class.getConstructor(); |
| try { |
| TypeToken.of(Object.class).constructor(constructor); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| public void testConstructor_declaredBySuperclass() throws NoSuchMethodException { |
| Constructor<Object> constructor = Object.class.getConstructor(); |
| try { |
| TypeToken.of(String.class).constructor(constructor); |
| fail(); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| public void testConstructor_equals() throws NoSuchMethodException { |
| Constructor<?> defaultConstructor = ArrayList.class.getConstructor(); |
| Constructor<?> oneArgConstructor = ArrayList.class.getConstructor(int.class); |
| new EqualsTester() |
| .addEqualityGroup(Invokable.from(defaultConstructor), Invokable.from(defaultConstructor)) |
| .addEqualityGroup(Invokable.from(oneArgConstructor)) |
| .addEqualityGroup(new TypeToken<ArrayList<Integer>>() {}.constructor(defaultConstructor)) |
| .addEqualityGroup(new TypeToken<ArrayList<String>>() {}.constructor(defaultConstructor)) |
| .addEqualityGroup(new TypeToken<ArrayList<Integer>>() {}.constructor(oneArgConstructor)) |
| .addEqualityGroup(new TypeToken<ArrayList<String>>() {}.constructor(oneArgConstructor)) |
| .testEquals(); |
| } |
| |
| private static class Container<T> { |
| @SuppressWarnings("unused") |
| public Container(T data) {} |
| } |
| |
| public <T extends Container<String>> void testConstructor_parameterTypes() |
| throws NoSuchMethodException { |
| @SuppressWarnings("rawtypes") // Reflection API skew |
| Constructor<Container> constructor = Container.class.getConstructor(Object.class); |
| Invokable<T, ?> invokable = new TypeToken<T>(getClass()) {}.constructor(constructor); |
| ImmutableList<Parameter> params = invokable.getParameters(); |
| assertEquals(1, params.size()); |
| assertEquals(TypeToken.of(String.class), params.get(0).getType()); |
| } |
| |
| private static class CannotConstruct<E extends Throwable> { |
| @SuppressWarnings("unused") |
| public CannotConstruct() throws E {} |
| } |
| |
| public <T extends CannotConstruct<AssertionError>> void testConstructor_exceptionTypes() |
| throws NoSuchMethodException { |
| @SuppressWarnings("rawtypes") // Reflection API skew |
| Constructor<CannotConstruct> constructor = CannotConstruct.class.getConstructor(); |
| Invokable<T, ?> invokable = new TypeToken<T>(getClass()) {}.constructor(constructor); |
| ASSERT.that(invokable.getExceptionTypes()).has().item(TypeToken.of(AssertionError.class)); |
| } |
| |
| public void testRejectTypeVariable_class() { |
| assertNoTypeVariable(String.class); |
| assertNoTypeVariable(String[].class); |
| assertNoTypeVariable(int[].class); |
| } |
| |
| public void testRejectTypeVariable_parameterizedType() { |
| assertNoTypeVariable(new TypeCapture<Iterable<String>>() {}.capture()); |
| } |
| |
| public void testRejectTypeVariable_wildcardType() { |
| assertNoTypeVariable( |
| new TypeCapture<Iterable<? extends String>>() {}.capture()); |
| assertNoTypeVariable( |
| new TypeCapture<Iterable<? super String>>() {}.capture()); |
| } |
| |
| public void testRejectTypeVariable_genericArrayType() { |
| assertNoTypeVariable( |
| new TypeCapture<Iterable<? extends String>[]>() {}.capture()); |
| } |
| |
| public <T> void testRejectTypeVariable_withTypeVariable() { |
| assertHasTypeVariable(new TypeCapture<T>() {}.capture()); |
| assertHasTypeVariable(new TypeCapture<T[]>() {}.capture()); |
| assertHasTypeVariable(new TypeCapture<Iterable<T>>() {}.capture()); |
| assertHasTypeVariable(new TypeCapture<Map<String, T>>() {}.capture()); |
| assertHasTypeVariable( |
| new TypeCapture<Map<String, ? extends T>>() {}.capture()); |
| assertHasTypeVariable( |
| new TypeCapture<Map<String, ? super T[]>>() {}.capture()); |
| } |
| |
| private static class From<K> { |
| class To<V> { |
| Type type() { |
| return new TypeToken<To<V>>(getClass()) {}.getType(); |
| } |
| } |
| } |
| |
| public <T> void testRejectTypeVariable_withOwnerType() { |
| // Neither has subclass |
| assertHasTypeVariable(new From<Integer>().new To<String>().type()); |
| assertHasTypeVariable(new From<T>().new To<String>().type()); |
| assertHasTypeVariable(new From<Integer>().new To<T>().type()); |
| |
| // Owner is subclassed |
| assertHasTypeVariable(new From<Integer>() {}.new To<String>().type()); |
| assertHasTypeVariable(new From<T>() {}.new To<String>().type()); |
| |
| // Inner is subclassed |
| assertNoTypeVariable(new From<Integer>().new To<String>() {}.type()); |
| assertHasTypeVariable(new From<Integer>().new To<T>() {}.type()); |
| assertHasTypeVariable(new From<T>().new To<String>() {}.type()); |
| |
| // both subclassed |
| assertHasTypeVariable(new From<T>() {}.new To<String>() {}.type()); |
| assertNoTypeVariable(new From<Integer>() {}.new To<String>() {}.type()); |
| assertHasTypeVariable(new From<Integer>() {}.new To<T>() {}.type()); |
| } |
| |
| private static void assertHasTypeVariable(Type type) { |
| try { |
| TypeToken.of(type).rejectTypeVariables(); |
| fail("Should contain TypeVariable"); |
| } catch (IllegalArgumentException expected) {} |
| } |
| |
| private static void assertNoTypeVariable(Type type) { |
| TypeToken.of(type).rejectTypeVariables(); |
| } |
| |
| private abstract static class RawTypeConsistencyTester<T extends Enum<T> & CharSequence> { |
| abstract T returningT(); |
| abstract void acceptT(T t); |
| abstract <X extends T> X returningX(); |
| abstract <X> void acceptX(X x); |
| abstract <T2 extends Enum<T2> & CharSequence> T2 returningT2(); |
| abstract <T2 extends CharSequence&Iterable<T2>> void acceptT2(T2 t2); |
| |
| static void verifyConsitentRawType() { |
| for (Method method : RawTypeConsistencyTester.class.getDeclaredMethods()) { |
| assertEquals(method.getReturnType(), TypeToken.getRawType(method.getGenericReturnType())); |
| for (int i = 0; i < method.getParameterTypes().length; i++) { |
| assertEquals(method.getParameterTypes()[i], |
| TypeToken.getRawType(method.getGenericParameterTypes()[i])); |
| } |
| } |
| } |
| } |
| |
| public void testRawTypes() throws Exception { |
| RawTypeConsistencyTester.verifyConsitentRawType(); |
| assertEquals(Object.class, TypeToken.getRawType(Types.subtypeOf(Object.class))); |
| assertEquals(CharSequence.class, TypeToken.getRawType(Types.subtypeOf(CharSequence.class))); |
| assertEquals(Object.class, TypeToken.getRawType(Types.supertypeOf(CharSequence.class))); |
| } |
| |
| private abstract static class IKnowMyType<T> { |
| TypeToken<T> type() { |
| return new TypeToken<T>(getClass()) {}; |
| } |
| } |
| |
| public void testTypeResolution() { |
| assertEquals(String.class, |
| new IKnowMyType<String>() {}.type().getType()); |
| assertEquals(new TypeToken<Map<String, Integer>>() {}, |
| new IKnowMyType<Map<String, Integer>>() {}.type()); |
| } |
| |
| public <A extends Iterable<? extends String>, B extends A> void testSerializable() { |
| reserialize(TypeToken.of(String.class)); |
| reserialize(TypeToken.of(String.class).getTypes()); |
| reserialize(TypeToken.of(String.class).getTypes().classes()); |
| reserialize(TypeToken.of(String.class).getTypes().interfaces()); |
| reserialize(TypeToken.of(String.class).getTypes().rawTypes()); |
| reserialize(TypeToken.of(String.class).getTypes().classes().rawTypes()); |
| reserialize(TypeToken.of(String.class).getTypes().interfaces().rawTypes()); |
| reserialize(new TypeToken<int[]>() {}); |
| reserialize(new TypeToken<Map<String, Integer>>() {}); |
| reserialize(new IKnowMyType<Map<? super String, ? extends int[]>>() {}.type()); |
| reserialize(TypeToken.of(new TypeCapture<B>() {}.capture()).getTypes().rawTypes()); |
| try { |
| SerializableTester.reserialize(TypeToken.of(new TypeCapture<B>() {}.capture())); |
| fail(); |
| } catch (RuntimeException expected) {} |
| } |
| |
| public <A> void testSerializable_typeVariableNotSupported() { |
| try { |
| new ITryToSerializeMyTypeVariable<String>().go(); |
| fail(); |
| } catch (RuntimeException expected) {} |
| } |
| |
| private static class ITryToSerializeMyTypeVariable<T> { |
| void go() { |
| SerializableTester.reserialize(TypeToken.of(new TypeCapture<T>() {}.capture())); |
| } |
| } |
| |
| private static <T> T reserialize(T object) { |
| T copy = SerializableTester.reserialize(object); |
| new EqualsTester() |
| .addEqualityGroup(object, copy) |
| .testEquals(); |
| return copy; |
| } |
| |
| public void testTypeResolutionAfterReserialized() { |
| reserialize(new TypeToken<String>() {}); |
| reserialize(new TypeToken<Map<String, Integer>>() {}); |
| TypeToken<Map<String, Integer>> reserialized = reserialize( |
| new TypeToken<Map<String, Integer>>() {}); |
| assertEquals(reserialized, substitute(reserialized, String.class)); |
| } |
| |
| private static <T, X> TypeToken<T> substitute(TypeToken<T> type, Class<X> arg) { |
| return type.where(new TypeParameter<X>() {}, arg); |
| } |
| |
| private abstract static class ToReproduceGenericSignatureFormatError<V> { |
| private abstract class BaseOuter { |
| abstract class BaseInner {} |
| } |
| private abstract class SubOuter extends BaseOuter { |
| private abstract class SubInner extends BaseInner {} |
| } |
| } |
| |
| // For Guava bug http://code.google.com/p/guava-libraries/issues/detail?id=1025 |
| public void testDespiteGenericSignatureFormatError() { |
| ImmutableSet.copyOf( |
| TypeToken.of(ToReproduceGenericSignatureFormatError.SubOuter.SubInner.class) |
| .getTypes() |
| .rawTypes()); |
| } |
| |
| private abstract static class Entry<K, V> { |
| TypeToken<K> keyType() { |
| return new TypeToken<K>(getClass()) {}; |
| } |
| TypeToken<V> valueType() { |
| return new TypeToken<V>(getClass()) {}; |
| } |
| } |
| |
| // The A and B type parameters are used inside the test to test type variable |
| public <A, B> void testEquals() { |
| new EqualsTester() |
| .addEqualityGroup( |
| TypeToken.of(String.class), |
| TypeToken.of(String.class), |
| new Entry<String, Integer>() {}.keyType(), |
| new Entry<Integer, String>() {}.valueType(), |
| new TypeToken<String>() {}, |
| new TypeToken<String>() {}) |
| .addEqualityGroup( |
| TypeToken.of(Integer.class), |
| new TypeToken<Integer>() {}, |
| new Entry<Integer, String>() {}.keyType(), |
| new Entry<String, Integer>() {}.valueType()) |
| .addEqualityGroup( |
| new TypeToken<List<String>>() {}, |
| new TypeToken<List<String>>() {}) |
| .addEqualityGroup( |
| new TypeToken<List<?>>() {}, |
| new TypeToken<List<?>>() {}) |
| .addEqualityGroup( |
| new TypeToken<Map<A, ?>>() {}, |
| new TypeToken<Map<A, ?>>() {}) |
| .addEqualityGroup( |
| new TypeToken<Map<B, ?>>() {}) |
| .addEqualityGroup( |
| TypeToken.of(new TypeCapture<A>() {}.capture()), |
| TypeToken.of(new TypeCapture<A>() {}.capture())) |
| .addEqualityGroup(TypeToken.of(new TypeCapture<B>() {}.capture())) |
| .testEquals(); |
| } |
| |
| // T is used inside to test type variable |
| public <T> void testToString() { |
| assertEquals(String.class.getName(), new TypeToken<String>() {}.toString()); |
| assertEquals("T", TypeToken.of(new TypeCapture<T>() {}.capture()).toString()); |
| assertEquals("java.lang.String", new Entry<String, Integer>() {}.keyType().toString()); |
| } |
| |
| private static <K, V> TypeToken<Map<K, V>> mapOf(Class<K> keyType, Class<V> valueType) { |
| return new TypeToken<Map<K, V>>() {} |
| .where(new TypeParameter<K>() {}, keyType) |
| .where(new TypeParameter<V>() {}, valueType); |
| } |
| |
| private static <T> TypeToken<T[]> arrayOf(Class<T> componentType) { |
| return new TypeToken<T[]>() {} |
| .where(new TypeParameter<T>() {}, componentType); |
| } |
| |
| public <T> void testNulls() { |
| new NullPointerTester() |
| .testAllPublicStaticMethods(TypeToken.class); |
| new NullPointerTester() |
| .setDefault(TypeParameter.class, new TypeParameter<T>() {}) |
| .testAllPublicInstanceMethods(TypeToken.of(String.class)); |
| } |
| |
| private static class Assignability<From, To> { |
| |
| boolean isAssignable() { |
| return new TypeToken<To>(getClass()) {}.isAssignableFrom(new TypeToken<From>(getClass()) {}); |
| } |
| |
| static <From, To> Assignability<From, To> of() { |
| return new Assignability<From, To>(); |
| } |
| } |
| |
| private static void assertAssignable(TypeToken<?> from, TypeToken<?> to) { |
| assertTrue( |
| from.getType() + " is expected to be assignable to " + to.getType(), |
| to.isAssignableFrom(from)); |
| } |
| |
| private static void assertNotAssignable(TypeToken<?> from, TypeToken<?> to) { |
| assertFalse( |
| from.getType() + " shouldn't be assignable to " + to.getType(), |
| to.isAssignableFrom(from)); |
| } |
| |
| private static void assertHasArrayInterfaces(TypeToken<?> arrayType) { |
| assertEquals(arrayInterfaces(), ImmutableSet.copyOf(arrayType.getGenericInterfaces())); |
| } |
| |
| private static ImmutableSet<TypeToken<?>> arrayInterfaces() { |
| ImmutableSet.Builder<TypeToken<?>> builder = ImmutableSet.builder(); |
| for (Class<?> interfaceType : Object[].class.getInterfaces()) { |
| builder.add(TypeToken.of(interfaceType)); |
| } |
| return builder.build(); |
| } |
| |
| private static void assertIsPrimitive(TypeToken<?> type) { |
| assertTrue(type.isPrimitive()); |
| assertNotWrapper(type); |
| assertEquals(TypeToken.of(Primitives.wrap((Class<?>) type.getType())), type.wrap()); |
| } |
| |
| private static void assertNotPrimitive(TypeToken<?> type) { |
| assertFalse(type.isPrimitive()); |
| assertSame(type, type.wrap()); |
| } |
| |
| private static void assertIsWrapper(TypeToken<?> type) { |
| assertNotPrimitive(type); |
| assertEquals(TypeToken.of(Primitives.unwrap((Class<?>) type.getType())), type.unwrap()); |
| } |
| |
| private static void assertNotWrapper(TypeToken<?> type) { |
| assertSame(type, type.unwrap()); |
| } |
| |
| private static void assertNotPrimitiveNorWrapper(TypeToken<?> type) { |
| assertNotPrimitive(type); |
| assertNotWrapper(type); |
| } |
| |
| private interface BaseInterface {} |
| private static class Base implements BaseInterface {} |
| private static class Sub extends Base {} |
| |
| private static CollectionSubject<?, Object, ?> assertThat(Collection<?> actual) { |
| return ASSERT.that(Collections.<Object>unmodifiableCollection(actual)); |
| } |
| } |
