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// Copyright 2018 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.vfs;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.collect.Lists;
import com.google.common.testing.EqualsTester;
import com.google.devtools.build.lib.clock.BlazeClock;
import com.google.devtools.build.lib.skyframe.serialization.testutils.ObjectCodecTester;
import com.google.devtools.build.lib.testutil.MoreAsserts;
import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem;
import java.util.Comparator;
import java.util.List;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Tests for {@link RootTest}. */
@RunWith(JUnit4.class)
public class RootTest {
private FileSystem fs;
@Before
public final void initializeFileSystem() throws Exception {
fs = new InMemoryFileSystem(BlazeClock.instance());
}
@Test
public void testEqualsAndHashCodeContract() throws Exception {
FileSystem otherFs = new InMemoryFileSystem(BlazeClock.instance());
new EqualsTester()
.addEqualityGroup(Root.absoluteRoot(fs), Root.absoluteRoot(fs))
.addEqualityGroup(Root.absoluteRoot(otherFs), Root.absoluteRoot(otherFs))
.addEqualityGroup(Root.fromPath(fs.getPath("/foo")), Root.fromPath(fs.getPath("/foo")))
.testEquals();
}
@Test
public void testPathRoot() throws Exception {
Root root = Root.fromPath(fs.getPath("/foo"));
assertThat(root.asPath()).isEqualTo(fs.getPath("/foo"));
assertThat(root.contains(fs.getPath("/foo/bar"))).isTrue();
assertThat(root.contains(fs.getPath("/boo/bar"))).isFalse();
assertThat(root.contains(PathFragment.create("/foo/bar"))).isTrue();
assertThat(root.contains(PathFragment.create("foo/bar"))).isFalse();
assertThat(root.getRelative(PathFragment.create("bar"))).isEqualTo(fs.getPath("/foo/bar"));
assertThat(root.getRelative("bar")).isEqualTo(fs.getPath("/foo/bar"));
assertThat(root.getRelative(PathFragment.create("/bar"))).isEqualTo(fs.getPath("/bar"));
assertThat(root.relativize(fs.getPath("/foo/bar"))).isEqualTo(PathFragment.create("bar"));
assertThat(root.relativize(PathFragment.create("/foo/bar")))
.isEqualTo(PathFragment.create("bar"));
MoreAsserts.expectThrows(
IllegalArgumentException.class, () -> root.relativize(PathFragment.create("foo")));
}
@Test
public void testFileSystemAbsoluteRoot() throws Exception {
Root root = Root.absoluteRoot(fs);
assertThat(root.asPath()).isNull();
assertThat(root.contains(fs.getPath("/foo"))).isTrue();
assertThat(root.contains(PathFragment.create("/foo/bar"))).isTrue();
assertThat(root.contains(PathFragment.create("foo/bar"))).isFalse();
assertThat(root.getRelative("/foo")).isEqualTo(fs.getPath("/foo"));
assertThat(root.relativize(fs.getPath("/foo"))).isEqualTo(PathFragment.create("/foo"));
assertThat(root.relativize(PathFragment.create("/foo"))).isEqualTo(PathFragment.create("/foo"));
MoreAsserts.expectThrows(
IllegalArgumentException.class, () -> root.getRelative(PathFragment.create("foo")));
MoreAsserts.expectThrows(
IllegalArgumentException.class, () -> root.getRelative(PathFragment.create("foo")));
MoreAsserts.expectThrows(
IllegalArgumentException.class, () -> root.relativize(PathFragment.create("foo")));
}
@Test
public void testCompareTo() throws Exception {
Root a = Root.fromPath(fs.getPath("/a"));
Root b = Root.fromPath(fs.getPath("/b"));
Root root = Root.absoluteRoot(fs);
List<Root> list = Lists.newArrayList(a, root, b);
list.sort(Comparator.naturalOrder());
assertThat(list).containsExactly(root, a, b).inOrder();
}
@Test
public void testSerialization() throws Exception {
ObjectCodecTester.newBuilder(Root.CODEC)
.addSubjects(Root.absoluteRoot(fs), Root.fromPath(fs.getPath("/foo")))
.addDependency(FileSystem.class, fs)
.skipBadDataTest()
.buildAndRunTests();
}
}
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