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97 lines
3.1 KiB
97 lines
3.1 KiB
7 months ago
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/*
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* Copyright (C) 2016 The Dagger Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dagger.internal.codegen;
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import static com.google.testing.compile.CompilationSubject.assertThat;
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import static dagger.internal.codegen.Compilers.daggerCompiler;
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import com.google.testing.compile.Compilation;
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import com.google.testing.compile.JavaFileObjects;
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import javax.tools.JavaFileObject;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.junit.runners.JUnit4;
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@RunWith(JUnit4.class)
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public class OptionalBindingTest {
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@Test
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public void provideExplicitOptionalInParent_AndBindsOptionalOfInChild() {
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JavaFileObject parent =
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JavaFileObjects.forSourceLines(
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"test.Parent",
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"package test;",
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"",
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"import dagger.Component;",
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"import java.util.Optional;",
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"",
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"@Component(modules = ParentModule.class)",
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"interface Parent {",
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" Optional<String> optional();",
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" Child child();",
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"}");
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JavaFileObject parentModule =
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JavaFileObjects.forSourceLines(
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"test.ParentModule",
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"package test;",
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"",
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"import dagger.Module;",
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"import dagger.Provides;",
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"import java.util.Optional;",
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"",
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"@Module",
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"class ParentModule {",
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" @Provides",
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" Optional<String> optional() {",
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" return Optional.of(new String());",
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" }",
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"}");
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JavaFileObject child =
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JavaFileObjects.forSourceLines(
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"test.Child",
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"package test;",
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"",
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"import dagger.Subcomponent;",
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"import java.util.Optional;",
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"",
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"@Subcomponent(modules = ChildModule.class)",
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"interface Child {",
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" Optional<String> optional();",
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"}");
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JavaFileObject childModule =
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JavaFileObjects.forSourceLines(
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"test.ChildModule",
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"package test;",
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"",
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"import dagger.BindsOptionalOf;",
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"import dagger.Module;",
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"",
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"@Module",
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"interface ChildModule {",
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" @BindsOptionalOf",
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" String optionalString();",
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"}");
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Compilation compilation = daggerCompiler().compile(parent, parentModule, child, childModule);
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assertThat(compilation).failed();
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assertThat(compilation)
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.hadErrorContaining("Optional<String> is bound multiple times")
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.inFile(parent)
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.onLineContaining("interface Parent");
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}
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}
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