75 lines
2.9 KiB
Java
75 lines
2.9 KiB
Java
/*
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* Copyright (C) 2014 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.common.truth.Truth.assertThat;
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import static javax.lang.model.util.ElementFilter.methodsIn;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.Iterables;
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import com.google.testing.compile.CompilationRule;
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import dagger.internal.codegen.MethodSignatureFormatterTest.OuterClass.InnerClass;
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import dagger.internal.codegen.langmodel.DaggerElements;
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import dagger.internal.codegen.langmodel.DaggerTypes;
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import javax.inject.Singleton;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.element.TypeElement;
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import org.junit.Rule;
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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 MethodSignatureFormatterTest {
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@Rule public CompilationRule compilationRule = new CompilationRule();
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static class OuterClass {
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@interface Foo {
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Class<?> bar();
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}
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static class InnerClass {
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@Foo(bar = String.class)
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@Singleton
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String foo(
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@SuppressWarnings("unused") int a,
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@SuppressWarnings("unused") ImmutableList<Boolean> blah) {
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return "foo";
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}
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}
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}
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@Test public void methodSignatureTest() {
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DaggerElements elements =
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new DaggerElements(compilationRule.getElements(), compilationRule.getTypes());
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DaggerTypes types = new DaggerTypes(compilationRule.getTypes(), elements);
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TypeElement inner = elements.getTypeElement(InnerClass.class);
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ExecutableElement method = Iterables.getOnlyElement(methodsIn(inner.getEnclosedElements()));
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String formatted = new MethodSignatureFormatter(types).format(method);
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// This is gross, but it turns out that annotation order is not guaranteed when getting
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// all the AnnotationMirrors from an Element, so I have to test this chopped-up to make it
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// less brittle.
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assertThat(formatted).contains("@Singleton");
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assertThat(formatted).doesNotContain("@javax.inject.Singleton"); // maybe more importantly
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assertThat(formatted)
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.contains("@dagger.internal.codegen.MethodSignatureFormatterTest.OuterClass.Foo"
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+ "(bar=String.class)");
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assertThat(formatted).contains(" String "); // return type compressed
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assertThat(formatted).contains("int, ImmutableList<Boolean>)"); // parameters compressed.
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}
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}
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