1 files changed, 279 insertions, 0 deletions
diff --git a/src/test/java/com/google/devtools/build/lib/vfs/UnixPathTest.java b/src/test/java/com/google/devtools/build/lib/vfs/UnixPathTest.java
new file mode 100644
index 0000000000..b59336725a
--- /dev/null
+++ b/src/test/java/com/google/devtools/build/lib/vfs/UnixPathTest.java
@@ -0,0 +1,279 @@
+// Copyright 2014 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.devtools.build.lib.vfs;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertSame;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import com.google.common.collect.Lists;
+import com.google.devtools.build.lib.testutil.TestUtils;
+import com.google.devtools.build.lib.vfs.util.FileSystems;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.List;
+
+/**
+ * Tests for {@link Path}.
+ */
+@RunWith(JUnit4.class)
+public class UnixPathTest {
+
+  private FileSystem unixFs;
+  private File aDirectory;
+  private File aFile;
+  private File anotherFile;
+  private File tmpDir;
+
+  protected FileSystem getUnixFileSystem() {
+    return FileSystems.initDefaultAsNative();
+  }
+
+  @Before
+  public void setUp() throws Exception {
+    unixFs = getUnixFileSystem();
+    tmpDir = new File(TestUtils.tmpDir(), "tmpDir");
+    tmpDir.mkdirs();
+    aDirectory = new File(tmpDir, "a_directory");
+    aDirectory.mkdirs();
+    aFile = new File(tmpDir, "a_file");
+    new FileWriter(aFile).close();
+    anotherFile = new File(aDirectory, "another_file.txt");
+    new FileWriter(anotherFile).close();
+  }
+
+  @Test
+  public void testExists() {
+    assertTrue(unixFs.getPath(aDirectory.getPath()).exists());
+    assertTrue(unixFs.getPath(aFile.getPath()).exists());
+    assertFalse(unixFs.getPath("/does/not/exist").exists());
+  }
+
+  @Test
+  public void testDirectoryEntriesForDirectory() throws IOException {
+    Collection<Path> entries =
+        unixFs.getPath(tmpDir.getPath()).getDirectoryEntries();
+    List<Path> expectedEntries = Arrays.asList(
+      unixFs.getPath(tmpDir.getPath() + "/a_file"),
+      unixFs.getPath(tmpDir.getPath() + "/a_directory"));
+
+    assertEquals(new HashSet<Object>(expectedEntries),
+        new HashSet<Object>(entries));
+  }
+
+  @Test
+  public void testDirectoryEntriesForFileThrowsException() {
+    try {
+      unixFs.getPath(aFile.getPath()).getDirectoryEntries();
+      fail("No exception thrown.");
+    } catch (IOException x) {
+      // The expected result.
+    }
+  }
+
+  @Test
+  public void testIsFileIsTrueForFile() {
+    assertTrue(unixFs.getPath(aFile.getPath()).isFile());
+  }
+
+  @Test
+  public void testIsFileIsFalseForDirectory() {
+    assertFalse(unixFs.getPath(aDirectory.getPath()).isFile());
+  }
+
+  @Test
+  public void testBaseName() {
+    assertEquals("base", unixFs.getPath("/foo/base").getBaseName());
+  }
+
+  @Test
+  public void testBaseNameRunsAfterDotDotInterpretation() {
+    assertEquals("base", unixFs.getPath("/base/foo/..").getBaseName());
+  }
+
+  @Test
+  public void testParentOfRootIsRoot() {
+    assertEquals(unixFs.getPath("/"), unixFs.getPath("/.."));
+    assertEquals(unixFs.getPath("/"), unixFs.getPath("/../../../../../.."));
+    assertEquals(unixFs.getPath("/foo"), unixFs.getPath("/../../../foo"));
+  }
+
+  @Test
+  public void testIsDirectory() {
+    assertTrue(unixFs.getPath(aDirectory.getPath()).isDirectory());
+    assertFalse(unixFs.getPath(aFile.getPath()).isDirectory());
+    assertFalse(unixFs.getPath("/does/not/exist").isDirectory());
+  }
+
+  @Test
+  public void testListNonExistingDirectoryThrowsException() {
+    try {
+      unixFs.getPath("/does/not/exist").getDirectoryEntries();
+      fail("No exception thrown.");
+    } catch (IOException ex) {
+      // success!
+    }
+  }
+
+  private void assertPathSet(Collection<Path> actual, String... expected) {
+    List<String> actualStrings = Lists.newArrayListWithCapacity(actual.size());
+
+    for (Path path : actual) {
+      actualStrings.add(path.getPathString());
+    }
+
+    assertThat(actualStrings).containsExactlyElementsIn(Arrays.asList(expected));
+  }
+
+  @Test
+  public void testGlob() throws Exception {
+    Collection<Path> textFiles = UnixGlob.forPath(unixFs.getPath(tmpDir.getPath()))
+        .addPattern("*/*.txt")
+        .globInterruptible();
+    assertEquals(1, textFiles.size());
+    Path onlyFile = textFiles.iterator().next();
+    assertEquals(unixFs.getPath(anotherFile.getPath()), onlyFile);
+
+    Collection<Path> onlyFiles =
+        UnixGlob.forPath(unixFs.getPath(tmpDir.getPath()))
+        .addPattern("*")
+        .setExcludeDirectories(true)
+        .globInterruptible();
+    assertPathSet(onlyFiles, aFile.getPath());
+
+    Collection<Path> directoriesToo =
+        UnixGlob.forPath(unixFs.getPath(tmpDir.getPath()))
+        .addPattern("*")
+        .setExcludeDirectories(false)
+        .globInterruptible();
+    assertPathSet(directoriesToo, aFile.getPath(), aDirectory.getPath());
+  }
+
+  @Test
+  public void testGetRelative() {
+    Path relative = unixFs.getPath("/foo").getChild("bar");
+    Path expected = unixFs.getPath("/foo/bar");
+    assertEquals(expected, relative);
+  }
+
+  @Test
+  public void testEqualsAndHash() {
+    Path path = unixFs.getPath("/foo/bar");
+    Path equalPath = unixFs.getPath("/foo/bar");
+    Path differentPath = unixFs.getPath("/foo/bar/baz");
+    Object differentType = new Object();
+
+    assertEquals(path.hashCode(), equalPath.hashCode());
+    assertEquals(path, equalPath);
+    assertFalse(path.equals(differentPath));
+    assertFalse(path.equals(differentType));
+  }
+
+  @Test
+  public void testLatin1ReadAndWrite() throws IOException {
+    char[] allLatin1Chars = new char[256];
+    for (int i = 0; i < 256; i++) {
+      allLatin1Chars[i] = (char) i;
+    }
+    Path path = unixFs.getPath(aFile.getPath());
+    String latin1String = new String(allLatin1Chars);
+    FileSystemUtils.writeContentAsLatin1(path, latin1String);
+    String fileContent = new String(FileSystemUtils.readContentAsLatin1(path));
+    assertEquals(fileContent, latin1String);
+  }
+
+  /**
+   * Verify that the encoding implemented by
+   * {@link FileSystemUtils#writeContentAsLatin1(Path, String)}
+   * really is 8859-1 (latin1).
+   */
+  @Test
+  public void testVerifyLatin1() throws IOException {
+    char[] allLatin1Chars = new char[256];
+    for( int i = 0; i < 256; i++) {
+      allLatin1Chars[i] = (char)i;
+    }
+    Path path = unixFs.getPath(aFile.getPath());
+    String latin1String = new String(allLatin1Chars);
+    FileSystemUtils.writeContentAsLatin1(path, latin1String);
+    byte[] bytes = FileSystemUtils.readContent(path);
+    assertEquals(new String(bytes, "ISO-8859-1"), latin1String);
+  }
+
+  @Test
+  public void testBytesReadAndWrite() throws IOException {
+    byte[] bytes = new byte[] { (byte) 0xdeadbeef, (byte) 0xdeadbeef>>8,
+                                (byte) 0xdeadbeef>>16, (byte) 0xdeadbeef>>24 };
+    Path path = unixFs.getPath(aFile.getPath());
+    FileSystemUtils.writeContent(path, bytes);
+    byte[] content = FileSystemUtils.readContent(path);
+    assertEquals(bytes.length, content.length);
+    for (int i = 0; i < bytes.length; i++) {
+      assertEquals(bytes[i], content[i]);
+    }
+  }
+
+  @Test
+  public void testInputOutputStreams() throws IOException {
+    Path path = unixFs.getPath(aFile.getPath());
+    OutputStream out = path.getOutputStream();
+    for (int i = 0; i < 256; i++) {
+      out.write(i);
+    }
+    out.close();
+    InputStream in = path.getInputStream();
+    for (int i = 0; i < 256; i++) {
+      assertEquals(i, in.read());
+    }
+    assertEquals(-1, in.read());
+    in.close();
+  }
+
+  @Test
+  public void testAbsolutePathRoot() {
+    assertEquals("/", new Path(null).toString());
+  }
+
+  @Test
+  public void testAbsolutePath() {
+    Path segment = new Path(null, "bar.txt",
+      new Path(null, "foo", new Path(null)));
+    assertEquals("/foo/bar.txt", segment.toString());
+  }
+
+  @Test
+  public void testDerivedSegmentEquality() {
+    Path absoluteSegment = new Path(null);
+
+    Path derivedNode = absoluteSegment.getChild("derivedSegment");
+    Path otherDerivedNode = absoluteSegment.getChild("derivedSegment");
+
+    assertSame(derivedNode, otherDerivedNode);
+  }
+}