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// Copyright 2014 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 static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertSame;
import com.google.devtools.build.lib.util.BlazeClock;
import com.google.devtools.build.lib.vfs.Path.PathFactory;
import com.google.devtools.build.lib.vfs.WindowsFileSystem.WindowsPathFactory;
import com.google.devtools.build.lib.vfs.inmemoryfs.InMemoryFileSystem;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* A test for windows aspects of {@link Path}.
*/
@RunWith(JUnit4.class)
public class PathWindowsTest {
private FileSystem filesystem;
private Path root;
@Before
public final void initializeFileSystem() throws Exception {
filesystem =
new InMemoryFileSystem(BlazeClock.instance()) {
@Override
protected PathFactory getPathFactory() {
return WindowsPathFactory.INSTANCE;
}
};
root = filesystem.getRootDirectory().getRelative("C:/");
root.createDirectory();
Path first = root.getChild("first");
first.createDirectory();
}
private void assertAsFragmentWorks(String expected) {
assertEquals(new PathFragment(expected), filesystem.getPath(expected).asFragment());
}
@Test
public void testWindowsPath() {
Path p = filesystem.getPath("C:/foo/bar");
assertEquals("C:/foo/bar", p.getPathString());
assertEquals("C:/foo/bar", p.toString());
}
@Test
public void testAsFragmentWindows() {
assertAsFragmentWorks("C:/");
assertAsFragmentWorks("C://");
assertAsFragmentWorks("C:/first");
assertAsFragmentWorks("C:/first/x/y");
assertAsFragmentWorks("C:/first/x/y.foo");
}
@Test
public void testGetRelativeWithFragmentWindows() {
Path dir = filesystem.getPath("C:/first/x");
assertEquals("C:/first/x/y",
dir.getRelative(new PathFragment("y")).toString());
assertEquals("C:/first/x/x",
dir.getRelative(new PathFragment("./x")).toString());
assertEquals("C:/first/y",
dir.getRelative(new PathFragment("../y")).toString());
assertEquals("C:/first/y",
dir.getRelative(new PathFragment("../y")).toString());
assertEquals("C:/y",
dir.getRelative(new PathFragment("../../../y")).toString());
}
@Test
public void testGetRelativeWithAbsoluteFragmentWindows() {
Path root = filesystem.getPath("C:/first/x");
assertEquals("C:/x/y",
root.getRelative(new PathFragment("C:/x/y")).toString());
}
@Test
public void testGetRelativeWithAbsoluteStringWorksWindows() {
Path root = filesystem.getPath("C:/first/x");
assertEquals("C:/x/y", root.getRelative("C:/x/y").toString());
}
@Test
public void testParentOfRootIsRootWindows() {
assertSame(root, root.getRelative(".."));
assertSame(root.getRelative("dots"),
root.getRelative("broken/../../dots"));
}
@Test
public void testAbsoluteUnixPathIsRelativeToWindowsUnixRoot() {
Path actual = root.getRelative("/foo/bar");
Path expected = root.getRelative("C:/fake/msys/foo/bar");
assertThat(actual.getPathString()).isEqualTo(expected.getPathString());
assertThat(actual).isEqualTo(expected);
}
@Test
public void testAbsoluteUnixPathReferringToDriveIsRecognized() {
Path actual = root.getRelative("/c/foo");
Path expected = root.getRelative("C:/foo");
assertThat(actual.getPathString()).isEqualTo(expected.getPathString());
assertThat(actual).isEqualTo(expected);
// "unexpected" is not a valid MSYS path, we should not be able to create it.
try {
root.getRelative("/c:");
Assert.fail("expected failure");
} catch (IllegalArgumentException e) {
assertThat(e.getMessage()).contains("Illegal path string \"/c:\"");
}
}
@Test
public void testStartsWithWorksOnWindows() {
assertStartsWithReturnsOnWindows(true, "C:/first/x", "C:/first/x/y");
assertStartsWithReturnsOnWindows(true, "c:/first/x", "C:/FIRST/X/Y");
assertStartsWithReturnsOnWindows(true, "C:/FIRST/X", "c:/first/x/y");
assertStartsWithReturnsOnWindows(true, "/", "C:/");
assertStartsWithReturnsOnWindows(false, "C:/", "/");
assertStartsWithReturnsOnWindows(false, "C:/", "D:/");
assertStartsWithReturnsOnWindows(false, "C:/", "D:/foo");
}
@Test
public void testGetRelative() {
Path root = filesystem.getPath("C:\\first\\x");
Path other = root.getRelative("a\\b\\c");
assertThat(other.asFragment().getPathString()).isEqualTo("C:/first/x/a/b/c");
}
private void assertStartsWithReturnsOnWindows(boolean expected,
String ancestor,
String descendant) {
FileSystem windowsFileSystem = new WindowsFileSystem();
Path parent = windowsFileSystem.getPath(ancestor);
Path child = windowsFileSystem.getPath(descendant);
assertEquals(expected, child.startsWith(parent));
}
}
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