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82 lines
2.8 KiB
82 lines
2.8 KiB
/*
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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.javapoet;
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import static com.google.common.truth.Truth.assertThat;
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import static dagger.internal.codegen.javapoet.CodeBlocks.javadocLinkTo;
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import static dagger.internal.codegen.javapoet.CodeBlocks.toParametersCodeBlock;
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import static javax.lang.model.element.ElementKind.METHOD;
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import com.google.testing.compile.CompilationRule;
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import com.squareup.javapoet.CodeBlock;
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import java.util.stream.Stream;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.util.Elements;
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import org.junit.Before;
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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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/** Tests for {@link CodeBlocks}. */
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@RunWith(JUnit4.class)
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public final class CodeBlocksTest {
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private static final CodeBlock objectO = CodeBlock.of("$T o", Object.class);
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private static final CodeBlock stringS = CodeBlock.of("$T s", String.class);
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private static final CodeBlock intI = CodeBlock.of("$T i", int.class);
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@Rule public CompilationRule compilationRule = new CompilationRule();
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private Elements elements;
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@Before
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public void setUp() {
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this.elements = compilationRule.getElements();
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}
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@Test
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public void testToParametersCodeBlock() {
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assertThat(Stream.of(objectO, stringS, intI).collect(toParametersCodeBlock()))
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.isEqualTo(CodeBlock.of("$T o, $T s, $T i", Object.class, String.class, int.class));
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}
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@Test
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public void testToParametersCodeBlock_empty() {
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assertThat(Stream.<CodeBlock>of().collect(toParametersCodeBlock())).isEqualTo(CodeBlock.of(""));
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}
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@Test
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public void testToParametersCodeBlock_oneElement() {
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assertThat(Stream.of(objectO).collect(toParametersCodeBlock())).isEqualTo(objectO);
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}
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@Test
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public void testJavadocLinkTo() {
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ExecutableElement equals =
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elements
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.getTypeElement(Object.class.getCanonicalName())
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.getEnclosedElements()
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.stream()
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.filter(element -> element.getKind().equals(METHOD))
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.map(ExecutableElement.class::cast)
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.filter(method -> method.getSimpleName().contentEquals("equals"))
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.findFirst()
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.get();
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assertThat(javadocLinkTo(equals))
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.isEqualTo(CodeBlock.of("{@link $T#equals($T)}", Object.class, Object.class));
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}
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}
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