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// Copyright 2015 The Bazel Authors. 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.devtools.build.lib.actions;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import com.google.common.testing.EqualsTester;
import com.google.devtools.build.lib.testutil.Scratch;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.lib.vfs.PathFragment;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.io.IOException;
/**
* Tests for {@link Root}.
*/
@RunWith(JUnit4.class)
public class RootTest {
private Scratch scratch = new Scratch();
@Test
public void testAsSourceRoot() throws IOException {
Path sourceDir = scratch.dir("/source");
Root root = Root.asSourceRoot(sourceDir);
assertTrue(root.isSourceRoot());
assertEquals(PathFragment.EMPTY_FRAGMENT, root.getExecPath());
assertEquals(sourceDir, root.getPath());
assertEquals("/source[source]", root.toString());
}
@Test
public void testBadAsSourceRoot() {
try {
Root.asSourceRoot(null);
fail();
} catch (NullPointerException expected) {
}
}
@Test
public void testAsDerivedRoot() throws IOException {
Path execRoot = scratch.dir("/exec");
Path rootDir = scratch.dir("/exec/root");
Root root = Root.asDerivedRoot(execRoot, rootDir);
assertFalse(root.isSourceRoot());
assertEquals(new PathFragment("root"), root.getExecPath());
assertEquals(rootDir, root.getPath());
assertEquals("/exec/root[derived]", root.toString());
}
@Test
public void testBadAsDerivedRoot() throws IOException {
try {
Path execRoot = scratch.dir("/exec");
Path outsideDir = scratch.dir("/not_exec");
Root.asDerivedRoot(execRoot, outsideDir);
fail();
} catch (IllegalArgumentException expected) {
}
}
@Test
public void testBadAsDerivedRootSameForBoth() throws IOException {
try {
Path execRoot = scratch.dir("/exec");
Root.asDerivedRoot(execRoot, execRoot);
fail();
} catch (IllegalArgumentException expected) {
}
}
@Test
public void testBadAsDerivedRootNullDir() throws IOException {
try {
Path execRoot = scratch.dir("/exec");
Root.asDerivedRoot(execRoot, null);
fail();
} catch (NullPointerException expected) {
}
}
@Test
public void testBadAsDerivedRootNullExecRoot() throws IOException {
try {
Path execRoot = scratch.dir("/exec");
Root.asDerivedRoot(null, execRoot);
fail();
} catch (NullPointerException expected) {
}
}
@Test
public void testEquals() throws IOException {
Path execRoot = scratch.dir("/exec");
Path rootDir = scratch.dir("/exec/root");
Path otherRootDir = scratch.dir("/");
Path sourceDir = scratch.dir("/source");
Root rootA = Root.asDerivedRoot(execRoot, rootDir);
assertEqualsAndHashCode(true, rootA, Root.asDerivedRoot(execRoot, rootDir));
assertEqualsAndHashCode(false, rootA, Root.asSourceRoot(sourceDir));
assertEqualsAndHashCode(false, rootA, Root.asSourceRoot(rootDir));
assertEqualsAndHashCode(false, rootA, Root.asDerivedRoot(otherRootDir, rootDir));
}
public void assertEqualsAndHashCode(boolean expected, Object a, Object b) {
if (expected) {
new EqualsTester().addEqualityGroup(b, a).testEquals();
} else {
assertFalse(a.equals(b));
assertFalse(a.hashCode() == b.hashCode());
}
}
}
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