| /** |
| * Copyright (C) 2007 Google Inc. |
| * |
| * 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.inject; |
| |
| import static com.google.inject.Asserts.assertContains; |
| import static com.google.inject.Asserts.assertNotSerializable; |
| import com.google.inject.name.Names; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import junit.framework.TestCase; |
| |
| /** |
| * @author crazybob@google.com (Bob Lee) |
| */ |
| public class BinderTest extends TestCase { |
| |
| Provider<Foo> fooProvider; |
| |
| public void testProviderFromBinder() { |
| Guice.createInjector(new Module() { |
| public void configure(Binder binder) { |
| fooProvider = binder.getProvider(Foo.class); |
| |
| try { |
| fooProvider.get(); |
| } catch (IllegalStateException e) { /* expected */ } |
| } |
| }); |
| |
| assertNotNull(fooProvider.get()); |
| } |
| |
| static class Foo {} |
| |
| public void testInvalidProviderFromBinder() { |
| try { |
| Guice.createInjector(new Module() { |
| public void configure(Binder binder) { |
| binder.getProvider(Runnable.class); |
| } |
| }); |
| } |
| catch (CreationException e) { |
| assertEquals(1, e.getErrorMessages().size()); |
| } |
| } |
| |
| public void testDanglingConstantBinding() { |
| try { |
| Guice.createInjector(new AbstractModule() { |
| @Override public void configure() { |
| bindConstant(); |
| } |
| }); |
| fail(); |
| } catch (CreationException expected) { |
| assertContains(expected.getMessage(), "Missing constant value."); |
| } |
| } |
| |
| public void testToStringOnBinderApi() { |
| try { |
| Guice.createInjector(new AbstractModule() { |
| @Override public void configure() { |
| assertEquals("Binder", binder().toString()); |
| assertEquals("Provider<java.lang.Integer>", getProvider(Integer.class).toString()); |
| assertEquals("Provider<java.util.List<java.lang.String>>", |
| getProvider(Key.get(new TypeLiteral<List<String>>() {})).toString()); |
| |
| assertEquals("AnnotatedBindingBuilder<java.lang.Integer>", |
| bind(Integer.class).toString()); |
| assertEquals("LinkedBindingBuilder<java.lang.Integer>", |
| bind(Integer.class).annotatedWith(Names.named("a")).toString()); |
| assertEquals("AnnotatedConstantBindingBuilder", bindConstant().toString()); |
| assertEquals("ConstantBindingBuilder", |
| bindConstant().annotatedWith(Names.named("b")).toString()); |
| } |
| }); |
| fail(); |
| } catch (CreationException ignored) { |
| } |
| } |
| |
| public void testNothingIsSerializableInBinderApi() { |
| try { |
| Guice.createInjector(new AbstractModule() { |
| @Override public void configure() { |
| try { |
| assertNotSerializable(binder()); |
| assertNotSerializable(getProvider(Integer.class)); |
| assertNotSerializable(getProvider(Key.get(new TypeLiteral<List<String>>() {}))); |
| assertNotSerializable(bind(Integer.class)); |
| assertNotSerializable(bind(Integer.class).annotatedWith(Names.named("a"))); |
| assertNotSerializable(bindConstant()); |
| assertNotSerializable(bindConstant().annotatedWith(Names.named("b"))); |
| } catch (IOException e) { |
| fail(e.getMessage()); |
| } |
| } |
| }); |
| fail(); |
| } catch (CreationException ignored) { |
| } |
| } |
| |
| /** |
| * Although {@code String[].class} isn't equal to {@code new |
| * GenericArrayTypeImpl(String.class)}, Guice should treat these two types |
| * interchangeably. |
| */ |
| public void testArrayTypeCanonicalization() { |
| final String[] strings = new String[] { "A" }; |
| final Integer[] integers = new Integer[] { 1 }; |
| |
| Injector injector = Guice.createInjector(new AbstractModule() { |
| protected void configure() { |
| bind(String[].class).toInstance(strings); |
| bind(new TypeLiteral<Integer[]>() {}).toInstance(integers); |
| } |
| }); |
| |
| assertSame(integers, injector.getInstance(Key.get(new TypeLiteral<Integer[]>() {}))); |
| assertSame(integers, injector.getInstance(new Key<Integer[]>() {})); |
| assertSame(integers, injector.getInstance(Integer[].class)); |
| assertSame(strings, injector.getInstance(Key.get(new TypeLiteral<String[]>() {}))); |
| assertSame(strings, injector.getInstance(new Key<String[]>() {})); |
| assertSame(strings, injector.getInstance(String[].class)); |
| |
| try { |
| Guice.createInjector(new AbstractModule() { |
| protected void configure() { |
| bind(String[].class).toInstance(strings); |
| bind(new TypeLiteral<String[]>() {}).toInstance(strings); |
| } |
| }); |
| fail(); |
| } catch (CreationException expected) { |
| Asserts.assertContains(expected.getMessage(), |
| "A binding to java.lang.String[] was already configured"); |
| Asserts.assertContains(expected.getMessage(), |
| "1 error[s]"); |
| } |
| } |
| |
| /** Test for issue 186 */ |
| public void testGuiceRefusesToCreateParameterizedClasses() { |
| try { |
| Guice.createInjector(new AbstractModule() { |
| protected void configure() { |
| bind(List.class).to(ArrayList.class); |
| } |
| }); |
| fail(); |
| } catch (CreationException expected) { |
| Asserts.assertContains(expected.getMessage(), |
| "Cannot instantiate Parameterized class java.util.List"); |
| } |
| |
| } |
| |
| // public void testBindInterfaceWithoutImplementation() { |
| // Guice.createInjector(new AbstractModule() { |
| // protected void configure() { |
| // bind(Runnable.class); |
| // } |
| // }).getInstance(Runnable.class); |
| // } |
| } |