| /* |
| * Copyright 2014-present Facebook, Inc. |
| * |
| * 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.facebook.buck.testutil; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.contains; |
| import static org.hamcrest.Matchers.containsInAnyOrder; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.facebook.buck.timing.SettableFakeClock; |
| import com.google.common.base.Charsets; |
| import com.google.common.base.Optional; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Lists; |
| import com.google.common.io.CharStreams; |
| |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.OutputStream; |
| import java.nio.file.FileVisitResult; |
| import java.nio.file.FileVisitor; |
| import java.nio.file.NoSuchFileException; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.nio.file.SimpleFileVisitor; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.nio.file.attribute.FileAttribute; |
| import java.nio.file.attribute.PosixFilePermission; |
| import java.nio.file.attribute.PosixFilePermissions; |
| import java.util.List; |
| |
| public class FakeProjectFilesystemTest { |
| @Test |
| public void testFilesystemReturnsAddedContents() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.writeContentsToPath("Some content", Paths.get("A.txt")); |
| |
| Optional<String> contents; |
| contents = filesystem.readFileIfItExists(Paths.get("A.txt")); |
| assertTrue("Fake file system must return added file contents.", contents.isPresent()); |
| assertEquals("Some content", contents.get()); |
| |
| contents = filesystem.readFileIfItExists(Paths.get("B.txt")); |
| assertFalse( |
| "Fake file system must not return non-existing file contents", |
| contents.isPresent()); |
| } |
| |
| @Test |
| public void testReadLines() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.writeContentsToPath("line one.\nline two.\n", Paths.get("A.txt")); |
| filesystem.writeLinesToPath(ImmutableList.<String>of(), Paths.get("B.txt")); |
| filesystem.writeContentsToPath("\n", Paths.get("C.txt")); |
| |
| MoreAsserts.assertIterablesEquals( |
| ImmutableList.of("line one.", "line two."), |
| filesystem.readLines(Paths.get("A.txt"))); |
| |
| MoreAsserts.assertIterablesEquals( |
| ImmutableList.of(), |
| filesystem.readLines(Paths.get("B.txt"))); |
| |
| MoreAsserts.assertIterablesEquals( |
| ImmutableList.of(""), |
| filesystem.readLines(Paths.get("C.txt"))); |
| |
| MoreAsserts.assertIterablesEquals( |
| ImmutableList.of(), |
| filesystem.readLines(Paths.get("D.txt"))); |
| } |
| |
| @Test |
| public void testTouch() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.touch(Paths.get("A.txt")); |
| filesystem.touch(Paths.get("A/B.txt")); |
| |
| assertTrue(filesystem.exists(Paths.get("A.txt"))); |
| assertTrue(filesystem.exists(Paths.get("A/B.txt"))); |
| } |
| |
| @Test |
| public void testWalkRelativeFileTree() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.touch(Paths.get("root/A.txt")); |
| filesystem.touch(Paths.get("root/A/B/C.txt")); |
| filesystem.touch(Paths.get("root/A/B.txt")); |
| |
| final List<Path> filesVisited = Lists.newArrayList(); |
| |
| FileVisitor<Path> fileVisitor = new SimpleFileVisitor<Path>() { |
| @Override |
| public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) { |
| filesVisited.add(path); |
| return FileVisitResult.CONTINUE; |
| } |
| }; |
| |
| filesystem.walkRelativeFileTree(Paths.get("root"), fileVisitor); |
| assertThat(filesVisited, containsInAnyOrder( |
| Paths.get("root/A.txt"), |
| Paths.get("root/A/B/C.txt"), |
| Paths.get("root/A/B.txt"))); |
| |
| filesVisited.clear(); |
| filesystem.walkRelativeFileTree(Paths.get("root/A"), fileVisitor); |
| assertThat( |
| filesVisited, containsInAnyOrder( |
| Paths.get("root/A/B/C.txt"), |
| Paths.get("root/A/B.txt"))); |
| } |
| |
| @Test |
| public void testWalkRelativeFileTreeWhenPathIsAFile() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.touch(Paths.get("A.txt")); |
| |
| final List<Path> filesVisited = Lists.newArrayList(); |
| |
| FileVisitor<Path> fileVisitor = new SimpleFileVisitor<Path>() { |
| @Override |
| public FileVisitResult visitFile(Path path, BasicFileAttributes attrs) { |
| filesVisited.add(path); |
| return FileVisitResult.CONTINUE; |
| } |
| }; |
| |
| filesystem.walkRelativeFileTree(Paths.get("A.txt"), fileVisitor); |
| |
| // Despite the awkward name, "contains" implies an exact match. |
| assertThat(filesVisited, contains(Paths.get("A.txt"))); |
| } |
| |
| @Test |
| public void testNewFileInputStream() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| Path path = Paths.get("hello.txt"); |
| filesystem.writeContentsToPath("hello world", path); |
| InputStreamReader reader = new InputStreamReader( |
| filesystem.newFileInputStream(path), Charsets.UTF_8); |
| String contents = CharStreams.toString(reader); |
| assertEquals("hello world", contents); |
| } |
| |
| @Test |
| public void testAllExistingFileSystem() throws IOException { |
| AllExistingProjectFilesystem filesystem = new AllExistingProjectFilesystem(); |
| assertTrue(filesystem.exists(Paths.get("somepath.txt"))); |
| } |
| |
| @Test |
| public void testWriteContentsWithDefaultFileAttributes() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| Path path = Paths.get("hello.txt"); |
| filesystem.writeContentsToPath("hello world", path); |
| assertEquals(ImmutableSet.<FileAttribute<?>>of(), filesystem.getFileAttributesAtPath(path)); |
| } |
| |
| @Test |
| public void testWriteContentsWithSpecifiedFileAttributes() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| ImmutableSet<PosixFilePermission> permissions = |
| ImmutableSet.of( |
| PosixFilePermission.OWNER_READ, |
| PosixFilePermission.GROUP_READ, |
| PosixFilePermission.OTHERS_READ); |
| FileAttribute<?> attribute = PosixFilePermissions.asFileAttribute(permissions); |
| |
| Path path = Paths.get("hello.txt"); |
| filesystem.writeContentsToPath( |
| "hello world", |
| Paths.get("hello.txt"), |
| attribute); |
| assertEquals(ImmutableSet.of(attribute), filesystem.getFileAttributesAtPath(path)); |
| } |
| |
| @Test |
| public void testFileOutputStream() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| Path filePath = Paths.get("somefile.txt"); |
| |
| try (OutputStream stream = filesystem.newFileOutputStream(filePath)) { |
| stream.write("hello world".getBytes()); |
| } |
| assertEquals("hello world", filesystem.readFileIfItExists(filePath).get()); |
| } |
| |
| @Test |
| public void testFlushThenCloseFileOutputStream() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| Path filePath = Paths.get("somefile.txt"); |
| OutputStream stream = filesystem.newFileOutputStream(filePath); |
| stream.write("hello world".getBytes()); |
| stream.flush(); |
| stream.close(); |
| assertEquals("hello world", filesystem.readFileIfItExists(filePath).get()); |
| } |
| |
| @Test |
| public void testSingleElementMkdirsExists() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.mkdirs(Paths.get("foo")); |
| assertTrue(filesystem.isDirectory(Paths.get("foo"))); |
| assertFalse(filesystem.isDirectory(Paths.get("foo/bar"))); |
| } |
| |
| @Test |
| public void testEachElementOfMkdirsExists() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.mkdirs(Paths.get("foo/bar/baz")); |
| assertTrue(filesystem.isDirectory(Paths.get("foo"))); |
| assertTrue(filesystem.isDirectory(Paths.get("foo/bar"))); |
| assertTrue(filesystem.isDirectory(Paths.get("foo/bar/baz"))); |
| assertFalse(filesystem.isDirectory(Paths.get("foo/bar/baz/blech"))); |
| } |
| |
| @Test |
| public void testDirectoryDoesNotExistAfterRmdir() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.mkdirs(Paths.get("foo")); |
| filesystem.rmdir(Paths.get("foo")); |
| assertFalse(filesystem.isDirectory(Paths.get("foo"))); |
| } |
| |
| @Test |
| public void testDirectoryExistsIfIsDirectory() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.mkdirs(Paths.get("foo")); |
| assertTrue(filesystem.isDirectory(Paths.get("foo"))); |
| assertTrue(filesystem.exists(Paths.get("foo"))); |
| } |
| |
| @Test |
| public void testIsFileAfterTouch() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.touch(Paths.get("foo")); |
| assertFalse(filesystem.isDirectory(Paths.get("foo"))); |
| assertTrue(filesystem.isFile(Paths.get("foo"))); |
| assertTrue(filesystem.exists(Paths.get("foo"))); |
| } |
| |
| @Test(expected = NoSuchFileException.class) |
| public void fileModifiedTimeThrowsIfDoesNotExist() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.getLastModifiedTime(Paths.get("foo")); |
| } |
| |
| @Test |
| public void fileModifiedTimeIsSetOnInitialWrite() throws IOException { |
| SettableFakeClock clock = new SettableFakeClock(49152, 0); |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(clock); |
| filesystem.touch(Paths.get("foo")); |
| assertEquals(filesystem.getLastModifiedTime(Paths.get("foo")), 49152); |
| } |
| |
| @Test |
| public void fileModifiedTimeIsUpdatedOnSubsequentWrite() throws IOException { |
| SettableFakeClock clock = new SettableFakeClock(49152, 0); |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(clock); |
| filesystem.touch(Paths.get("foo")); |
| clock.setCurrentTimeMillis(64738); |
| filesystem.touch(Paths.get("foo")); |
| assertEquals(filesystem.getLastModifiedTime(Paths.get("foo")), 64738); |
| } |
| |
| @Test |
| public void fileModifiedTimeIsSetOnMkdirs() throws IOException { |
| SettableFakeClock clock = new SettableFakeClock(49152, 0); |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(clock); |
| filesystem.mkdirs(Paths.get("foo/bar/baz")); |
| assertEquals(filesystem.getLastModifiedTime(Paths.get("foo")), 49152); |
| assertEquals(filesystem.getLastModifiedTime(Paths.get("foo/bar")), 49152); |
| assertEquals(filesystem.getLastModifiedTime(Paths.get("foo/bar/baz")), 49152); |
| } |
| |
| @Test |
| public void testWritingAFileAddsParentDirectories() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.writeContentsToPath("hello", Paths.get("test/one/two/three.txt")); |
| |
| assertTrue(filesystem.exists(Paths.get("test/one/two"))); |
| assertTrue(filesystem.exists(Paths.get("test/one"))); |
| assertTrue(filesystem.exists(Paths.get("test"))); |
| } |
| |
| @Test |
| public void testIsSymLinkReturnsTrueForSymLink() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.createSymLink(Paths.get("foo"), Paths.get("bar"), false); |
| assertTrue(filesystem.isSymLink(Paths.get("foo"))); |
| } |
| |
| @Test |
| public void testIsSymLinkReturnsFalseForFile() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| filesystem.touch(Paths.get("foo")); |
| assertFalse(filesystem.isSymLink(Paths.get("foo"))); |
| } |
| |
| @Test |
| public void testIsSymLinkReturnsFalseForNotExistent() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| assertFalse(filesystem.isSymLink(Paths.get("foo"))); |
| } |
| |
| @Test |
| public void testSortedDirectoryContents() throws IOException { |
| SettableFakeClock clock = new SettableFakeClock(1000, 0); |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(clock); |
| filesystem.mkdirs(Paths.get("foo")); |
| Path a = Paths.get("foo/a.txt"); |
| filesystem.touch(a); |
| clock.setCurrentTimeMillis(2000); |
| Path b = Paths.get("foo/b.txt"); |
| filesystem.touch(b); |
| clock.setCurrentTimeMillis(3000); |
| Path c = Paths.get("foo/c.txt"); |
| filesystem.touch(c); |
| filesystem.touch(Paths.get("foo/non-matching")); |
| |
| assertEquals( |
| ImmutableSet.of(c, b, a), |
| filesystem.getSortedMatchingDirectoryContents( |
| Paths.get("foo"), |
| "*.txt")); |
| } |
| |
| @Test |
| public void testGetFilesUnderPath() throws IOException { |
| FakeProjectFilesystem filesystem = new FakeProjectFilesystem(); |
| Path bar = Paths.get("foo/bar.txt"); |
| Path baz = Paths.get("foo/baz/blech.txt"); |
| filesystem.touch(bar); |
| filesystem.touch(baz); |
| |
| assertEquals( |
| ImmutableSet.of(bar, baz), |
| filesystem.getFilesUnderPath(Paths.get("foo"))); |
| } |
| } |