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UnnecessarilyFullyQualifiedTest.java
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UnnecessarilyFullyQualifiedTest.java
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/*
* Copyright 2020 The Error Prone 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 com.google.errorprone.bugpatterns;
import com.google.errorprone.BugCheckerRefactoringTestHelper;
import com.google.errorprone.CompilationTestHelper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link UnnecessarilyFullyQualified}. */
@RunWith(JUnit4.class)
public final class UnnecessarilyFullyQualifiedTest {
private final BugCheckerRefactoringTestHelper helper =
BugCheckerRefactoringTestHelper.newInstance(UnnecessarilyFullyQualified.class, getClass());
@Test
public void javaLang() {
helper
.addInputLines(
"Test.java",
"public class Test {",
" @java.lang.Deprecated",
" public java.lang.String foo(java.lang.String s) {",
" java.lang.Integer i = 1;",
" return s;",
" }",
"}")
.addOutputLines(
"Test.java",
"public class Test {",
" @Deprecated",
" public String foo(String s) {",
" Integer i = 1;",
" return s;",
" }",
"}")
.doTest();
}
@Test
public void singleUse() {
helper
.addInputLines(
"Test.java", //
"interface Test {",
" java.util.List foo();",
" java.util.List bar();",
"}")
.addOutputLines(
"Test.java", //
"import java.util.List;",
"interface Test {",
" List foo();",
" List bar();",
"}")
.doTest();
}
@Test
public void wouldBeAmbiguous() {
helper
.addInputLines(
"List.java", //
"class List {}")
.expectUnchanged()
.addInputLines(
"Test.java", //
"interface Test {",
" java.util.List foo();",
"}")
.expectUnchanged()
.doTest();
}
@Test
public void refersToMultipleTypes() {
helper
.addInputLines(
"List.java", //
"package a;",
"public class List {}")
.expectUnchanged()
.addInputLines(
"Test.java",
"package b;",
"interface Test {",
" java.util.List foo();",
" a.List bar();",
"}")
.expectUnchanged()
.doTest();
}
@Test
public void inconsistentImportUsage() {
helper
.addInputLines(
"Test.java",
"import java.util.List;",
"public class Test {",
" public java.util.List foo(List list) {",
" return list;",
" }",
"}")
.addOutputLines(
"Test.java",
"import java.util.List;",
"public class Test {",
" public List foo(List list) {",
" return list;",
" }",
"}")
.doTest();
}
@Test
public void clashesWithTypeInSuperType() {
helper
.addInputLines(
"A.java", //
"package a;",
"public interface A {",
" public static class List {}",
"}")
.expectUnchanged()
.addInputLines(
"Test.java",
"package b;",
"import a.A;",
"class Test implements A {",
" java.util.List foo() {",
" return null;",
" }",
"}")
.expectUnchanged()
.doTest();
}
@Test
public void builder() {
helper
.addInputLines(
"Foo.java", //
"package a;",
"public class Foo {",
" public static final class Builder {}",
"}")
.expectUnchanged()
.addInputLines(
"Test.java",
"package b;",
"interface Test {",
" a.Foo foo();",
" a.Foo.Builder fooBuilder();",
"}")
.addOutputLines(
"Test.java",
"package b;",
"import a.Foo;",
"interface Test {",
" Foo foo();",
" Foo.Builder fooBuilder();",
"}")
.doTest();
}
@Test
public void exemptedNames() {
helper
.addInputLines(
"Annotation.java", //
"package pkg;",
"public class Annotation {}")
.expectUnchanged()
.addInputLines(
"Test.java", //
"interface Test {",
" pkg.Annotation foo();",
"}")
.expectUnchanged()
.doTest();
}
@Test
public void packageInfo() {
CompilationTestHelper.newInstance(UnnecessarilyFullyQualified.class, getClass())
.addSourceLines(
"a/A.java", //
"package a;",
"public @interface A {}")
.addSourceLines(
"b/package-info.java", //
"@a.A",
"package b;")
.doTest();
}
}