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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 com.google.common.truth.Truth.assertThat;
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 com.google.devtools.build.lib.vfs.Root;
import java.io.IOException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link ArtifactRoot}. */
@RunWith(JUnit4.class)
public class ArtifactRootTest {
private Scratch scratch = new Scratch();
@Test
public void testAsSourceRoot() throws IOException {
Path sourceDir = scratch.dir("/source");
ArtifactRoot root = ArtifactRoot.asSourceRoot(Root.fromPath(sourceDir));
assertThat(root.isSourceRoot()).isTrue();
assertThat(root.getExecPath()).isEqualTo(PathFragment.EMPTY_FRAGMENT);
assertThat(root.getRoot()).isEqualTo(Root.fromPath(sourceDir));
assertThat(root.toString()).isEqualTo("/source[source]");
}
@Test
public void testBadAsSourceRoot() {
try {
ArtifactRoot.asSourceRoot(null);
fail();
} catch (NullPointerException expected) {
}
}
@Test
public void testAsDerivedRoot() throws IOException {
Path execRoot = scratch.dir("/exec");
Path rootDir = scratch.dir("/exec/root");
ArtifactRoot root = ArtifactRoot.asDerivedRoot(execRoot, rootDir);
assertThat(root.isSourceRoot()).isFalse();
assertThat(root.getExecPath()).isEqualTo(PathFragment.create("root"));
assertThat(root.getRoot()).isEqualTo(Root.fromPath(rootDir));
assertThat(root.toString()).isEqualTo("/exec/root[derived]");
}
@Test
public void testBadAsDerivedRoot() throws IOException {
try {
Path execRoot = scratch.dir("/exec");
Path outsideDir = scratch.dir("/not_exec");
ArtifactRoot.asDerivedRoot(execRoot, outsideDir);
fail();
} catch (IllegalArgumentException expected) {
}
}
@Test
public void testBadAsDerivedRootSameForBoth() throws IOException {
try {
Path execRoot = scratch.dir("/exec");
ArtifactRoot.asDerivedRoot(execRoot, execRoot);
fail();
} catch (IllegalArgumentException expected) {
}
}
@Test
public void testBadAsDerivedRootNullDir() throws IOException {
try {
Path execRoot = scratch.dir("/exec");
ArtifactRoot.asDerivedRoot(execRoot, null);
fail();
} catch (NullPointerException expected) {
}
}
@Test
public void testBadAsDerivedRootNullExecRoot() throws IOException {
try {
Path execRoot = scratch.dir("/exec");
ArtifactRoot.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");
ArtifactRoot rootA = ArtifactRoot.asDerivedRoot(execRoot, rootDir);
assertEqualsAndHashCode(true, rootA, ArtifactRoot.asDerivedRoot(execRoot, rootDir));
assertEqualsAndHashCode(false, rootA, ArtifactRoot.asSourceRoot(Root.fromPath(sourceDir)));
assertEqualsAndHashCode(false, rootA, ArtifactRoot.asSourceRoot(Root.fromPath(rootDir)));
assertEqualsAndHashCode(false, rootA, ArtifactRoot.asDerivedRoot(otherRootDir, rootDir));
}
public void assertEqualsAndHashCode(boolean expected, Object a, Object b) {
if (expected) {
new EqualsTester().addEqualityGroup(b, a).testEquals();
} else {
assertThat(a.equals(b)).isFalse();
assertThat(a.hashCode() == b.hashCode()).isFalse();
}
}
}