/*
* Copyright 2012 Google Inc. All Rights Reserved.
*
* 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 static org.junit.Assert.fail;
import com.google.errorprone.CompilationTestHelper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import javax.tools.JavaFileObject;
/**
* @author eaftan@google.com (Eddie Aftandilian)
*/
@RunWith(JUnit4.class)
public class SelfEqualsTest {
CompilationTestHelper compilationHelper = CompilationTestHelper.newInstance(
new SelfEquals(true, true));
final JavaFileObject positiveCase1;
final JavaFileObject positiveCase2;
final JavaFileObject negativeCases;
public SelfEqualsTest() throws Exception {
positiveCase1 =
compilationHelper.fileManager().source(getClass(), "SelfEqualsPositiveCase1.java");
positiveCase2 =
compilationHelper.fileManager().source(getClass(), "SelfEqualsPositiveCase2.java");
negativeCases =
compilationHelper.fileManager().source(getClass(), "SelfEqualsNegativeCases.java");
}
@Test
public void testPositiveCase1() throws Exception {
compilationHelper.assertCompileFailsWithMessages(positiveCase1);
}
@Test
public void testPositiveCase2() throws Exception {
compilationHelper.assertCompileFailsWithMessages(positiveCase2);
}
@Test
public void testNegativeCase() throws Exception {
compilationHelper.assertCompileSucceeds(negativeCases);
}
@Test
public void testFlags() throws Exception {
SelfEquals checker;
CompilationTestHelper compilationHelper;
// Both checks off.
try {
new SelfEquals(false, false);
fail();
} catch (IllegalArgumentException e) {
// Expected to get an exception.
}
// Both checks on.
checker = new SelfEquals(true, true);
compilationHelper = CompilationTestHelper.newInstance(checker);
compilationHelper.assertCompileFailsWithMessages(positiveCase1);
compilationHelper = CompilationTestHelper.newInstance(checker);
compilationHelper.assertCompileFailsWithMessages(positiveCase2);
// Guava on, Eauals off.
checker = new SelfEquals(true, false);
compilationHelper = CompilationTestHelper.newInstance(checker);
compilationHelper.assertCompileFailsWithMessages(positiveCase1);
compilationHelper = CompilationTestHelper.newInstance(checker);
compilationHelper.assertCompileSucceeds(positiveCase2);
// Equals on, Guava off.
checker = new SelfEquals(false, true);
compilationHelper = CompilationTestHelper.newInstance(checker);
compilationHelper.assertCompileSucceeds(positiveCase1);
compilationHelper = CompilationTestHelper.newInstance(checker);
compilationHelper.assertCompileFailsWithMessages(positiveCase2);
}
}