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/*
* Copyright (C) 2017 The Dagger 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 dagger.internal.codegen;
import static com.google.testing.compile.CompilationSubject.assertThat;
import static dagger.internal.codegen.CompilerMode.DEFAULT_MODE;
import static dagger.internal.codegen.CompilerMode.FAST_INIT_MODE;
import static dagger.internal.codegen.Compilers.compilerWithOptions;
import com.google.testing.compile.Compilation;
import com.google.testing.compile.JavaFileObjects;
import java.util.Collection;
import javax.tools.JavaFileObject;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
@RunWith(Parameterized.class)
public class OptionalBindingRequestFulfillmentTest {
@Parameters(name = "{0}")
public static Collection<Object[]> parameters() {
return CompilerMode.TEST_PARAMETERS;
}
private final CompilerMode compilerMode;
public OptionalBindingRequestFulfillmentTest(CompilerMode compilerMode) {
this.compilerMode = compilerMode;
}
@Test
public void inlinedOptionalBindings() {
JavaFileObject module =
JavaFileObjects.forSourceLines(
"test.TestModule",
"package test;",
"",
"import dagger.Module;",
"import dagger.BindsOptionalOf;",
"import other.Maybe;",
"import other.DefinitelyNot;",
"",
"@Module",
"interface TestModule {",
" @BindsOptionalOf Maybe maybe();",
" @BindsOptionalOf DefinitelyNot definitelyNot();",
"}");
JavaFileObject maybe =
JavaFileObjects.forSourceLines(
"other.Maybe",
"package other;",
"",
"import dagger.Module;",
"import dagger.Provides;",
"",
"public class Maybe {",
" @Module",
" public static class MaybeModule {",
" @Provides static Maybe provideMaybe() { return new Maybe(); }",
" }",
"}");
JavaFileObject definitelyNot =
JavaFileObjects.forSourceLines(
"other.DefinitelyNot",
"package other;",
"",
"public class DefinitelyNot {}");
JavaFileObject component =
JavaFileObjects.forSourceLines(
"test.TestComponent",
"package test;",
"",
"import com.google.common.base.Optional;",
"import dagger.Component;",
"import dagger.Lazy;",
"import javax.inject.Provider;",
"import other.Maybe;",
"import other.DefinitelyNot;",
"",
"@Component(modules = {TestModule.class, Maybe.MaybeModule.class})",
"interface TestComponent {",
" Optional<Maybe> maybe();",
" Optional<Provider<Lazy<Maybe>>> providerOfLazyOfMaybe();",
" Optional<DefinitelyNot> definitelyNot();",
" Optional<Provider<Lazy<DefinitelyNot>>> providerOfLazyOfDefinitelyNot();",
"}");
JavaFileObject generatedComponent =
compilerMode
.javaFileBuilder("test.DaggerTestComponent")
.addLines(
"package test;",
"",
"import com.google.common.base.Optional;",
"",
GeneratedLines.generatedAnnotations(),
"final class DaggerTestComponent implements TestComponent {")
.addLinesIn(
FAST_INIT_MODE,
" private volatile Provider<Maybe> provideMaybeProvider;",
"",
" private Provider<Maybe> maybeProvider() {",
" Object local = provideMaybeProvider;",
" if (local == null) {",
" local = new SwitchingProvider<>(0);",
" provideMaybeProvider = (Provider<Maybe>) local;",
" }",
" return (Provider<Maybe>) local;",
" }")
.addLines(
" @Override",
" public Optional<Maybe> maybe() {",
" return Optional.of(",
" Maybe_MaybeModule_ProvideMaybeFactory.provideMaybe());",
" }",
"",
" @Override",
" public Optional<Provider<Lazy<Maybe>>> providerOfLazyOfMaybe() {",
" return Optional.of(ProviderOfLazy.create(")
.addLinesIn(
DEFAULT_MODE, //
" Maybe_MaybeModule_ProvideMaybeFactory.create()));")
.addLinesIn(
FAST_INIT_MODE, //
" maybeProvider()));")
.addLines(
" }",
"",
" @Override",
" public Optional<DefinitelyNot> definitelyNot() {",
" return Optional.<DefinitelyNot>absent();",
" }",
"",
" @Override",
" public Optional<Provider<Lazy<DefinitelyNot>>>",
" providerOfLazyOfDefinitelyNot() {",
" return Optional.<Provider<Lazy<DefinitelyNot>>>absent();",
" }")
.addLinesIn(
FAST_INIT_MODE,
" private final class SwitchingProvider<T> implements Provider<T> {",
" private final int id;",
"",
" SwitchingProvider(int id) {",
" this.id = id;",
" }",
"",
" @SuppressWarnings(\"unchecked\")",
" @Override",
" public T get() {",
" switch (id) {",
" case 0:",
" return (T) Maybe_MaybeModule_ProvideMaybeFactory.provideMaybe();",
" default:",
" throw new AssertionError(id);",
" }",
" }",
" }",
"}")
.build();
Compilation compilation =
compilerWithOptions(
compilerMode
, CompilerMode.JAVA7
)
.compile(module, maybe, definitelyNot, component);
assertThat(compilation).succeeded();
assertThat(compilation)
.generatedSourceFile("test.DaggerTestComponent")
.containsElementsIn(generatedComponent);
}
@Test
public void requestForFuture() {
JavaFileObject module =
JavaFileObjects.forSourceLines(
"test.TestModule",
"package test;",
"",
"import dagger.Module;",
"import dagger.BindsOptionalOf;",
"import other.Maybe;",
"import other.DefinitelyNot;",
"",
"@Module",
"interface TestModule {",
" @BindsOptionalOf Maybe maybe();",
" @BindsOptionalOf DefinitelyNot definitelyNot();",
"}");
JavaFileObject maybe =
JavaFileObjects.forSourceLines(
"other.Maybe",
"package other;",
"",
"import dagger.Module;",
"import dagger.Provides;",
"",
"public class Maybe {",
" @Module",
" public static class MaybeModule {",
" @Provides static Maybe provideMaybe() { return new Maybe(); }",
" }",
"}");
JavaFileObject definitelyNot =
JavaFileObjects.forSourceLines(
"other.DefinitelyNot",
"package other;",
"",
"public class DefinitelyNot {}");
JavaFileObject component =
JavaFileObjects.forSourceLines(
"test.TestComponent",
"package test;",
"",
"import com.google.common.base.Optional;",
"import com.google.common.util.concurrent.ListenableFuture;",
"import dagger.producers.ProductionComponent;",
"import javax.inject.Provider;",
"import other.Maybe;",
"import other.DefinitelyNot;",
"",
"@ProductionComponent(modules = {TestModule.class, Maybe.MaybeModule.class})",
"interface TestComponent {",
" ListenableFuture<Optional<Maybe>> maybe();",
" ListenableFuture<Optional<DefinitelyNot>> definitelyNot();",
"}");
JavaFileObject generatedComponent =
JavaFileObjects.forSourceLines(
"test.DaggerTestComponent",
"package test;",
"",
"import com.google.common.base.Optional;",
"import dagger.producers.internal.CancellationListener;",
"",
GeneratedLines.generatedAnnotations(),
"final class DaggerTestComponent implements TestComponent, CancellationListener {",
" @Override",
" public ListenableFuture<Optional<Maybe>> maybe() {",
" return Futures.immediateFuture(",
" Optional.of(Maybe_MaybeModule_ProvideMaybeFactory.provideMaybe()));",
" }",
"",
" @Override",
" public ListenableFuture<Optional<DefinitelyNot>> definitelyNot() {",
" return Futures.immediateFuture(Optional.<DefinitelyNot>absent());",
" }",
"",
" @Override",
" public void onProducerFutureCancelled(boolean mayInterruptIfRunning) {}",
"}");
Compilation compilation =
compilerWithOptions(
compilerMode
, CompilerMode.JAVA7
)
.compile(module, maybe, definitelyNot, component);
assertThat(compilation).succeeded();
assertThat(compilation)
.generatedSourceFile("test.DaggerTestComponent")
.containsElementsIn(generatedComponent);
}
}
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