| /* |
| * Copyright 2013-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.util; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.facebook.buck.testutil.integration.DebuggableTemporaryFolder; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| |
| public class MorePathsTest { |
| |
| @Rule |
| public DebuggableTemporaryFolder tmp = new DebuggableTemporaryFolder(); |
| |
| @Test |
| public void testCreateRelativeSymlinkToFilesInRoot() throws IOException { |
| ProjectFilesystem projectFilesystem = new ProjectFilesystem(tmp.getRoot()); |
| tmp.newFile("biz.txt"); |
| |
| Path pathToDesiredLinkUnderProjectRoot = Paths.get("gamma.txt"); |
| Path pathToExistingFileUnderProjectRoot = Paths.get("biz.txt"); |
| Path relativePath = MorePaths.createRelativeSymlink( |
| pathToDesiredLinkUnderProjectRoot, |
| pathToExistingFileUnderProjectRoot, |
| projectFilesystem); |
| assertEquals("biz.txt", relativePath.toString()); |
| |
| Path absolutePathToDesiredLinkUnderProjectRoot = projectFilesystem.resolve( |
| pathToDesiredLinkUnderProjectRoot); |
| assertTrue(Files.isSymbolicLink(absolutePathToDesiredLinkUnderProjectRoot)); |
| Path targetOfSymbolicLink = Files.readSymbolicLink(absolutePathToDesiredLinkUnderProjectRoot); |
| assertEquals(relativePath, targetOfSymbolicLink); |
| |
| Path absolutePathToExistingFileUnderProjectRoot = projectFilesystem.resolve( |
| pathToExistingFileUnderProjectRoot); |
| Files.write(absolutePathToExistingFileUnderProjectRoot, "Hello, World!".getBytes()); |
| String dataReadFromSymlink = new String(Files.readAllBytes( |
| absolutePathToDesiredLinkUnderProjectRoot)); |
| assertEquals("Hello, World!", dataReadFromSymlink); |
| } |
| |
| @Test |
| public void testCreateRelativeSymlinkToFileInRoot() throws IOException { |
| ProjectFilesystem projectFilesystem = new ProjectFilesystem(tmp.getRoot()); |
| tmp.newFile("biz.txt"); |
| |
| tmp.newFolder("alpha", "beta"); |
| Path pathToDesiredLinkUnderProjectRoot = Paths.get("alpha/beta/gamma.txt"); |
| Path pathToExistingFileUnderProjectRoot = Paths.get("biz.txt"); |
| Path relativePath = MorePaths.createRelativeSymlink( |
| pathToDesiredLinkUnderProjectRoot, |
| pathToExistingFileUnderProjectRoot, |
| projectFilesystem); |
| assertEquals("../../biz.txt", relativePath.toString()); |
| |
| Path absolutePathToDesiredLinkUnderProjectRoot = projectFilesystem.resolve( |
| pathToDesiredLinkUnderProjectRoot); |
| assertTrue(Files.isSymbolicLink(absolutePathToDesiredLinkUnderProjectRoot)); |
| Path targetOfSymbolicLink = Files.readSymbolicLink(absolutePathToDesiredLinkUnderProjectRoot); |
| assertEquals(relativePath, targetOfSymbolicLink); |
| |
| Path absolutePathToExistingFileUnderProjectRoot = projectFilesystem.resolve( |
| pathToExistingFileUnderProjectRoot); |
| Files.write(absolutePathToExistingFileUnderProjectRoot, "Hello, World!".getBytes()); |
| String dataReadFromSymlink = new String(Files.readAllBytes( |
| absolutePathToDesiredLinkUnderProjectRoot)); |
| assertEquals("Hello, World!", dataReadFromSymlink); |
| } |
| |
| @Test |
| public void testCreateRelativeSymlinkToFilesOfVaryingDepth() throws IOException { |
| ProjectFilesystem projectFilesystem = new ProjectFilesystem(tmp.getRoot()); |
| tmp.newFolder("foo", "bar", "baz"); |
| tmp.newFile("foo/bar/baz/biz.txt"); |
| |
| tmp.newFolder("alpha", "beta"); |
| Path pathToDesiredLinkUnderProjectRoot = Paths.get("alpha/beta/gamma.txt"); |
| Path pathToExistingFileUnderProjectRoot = Paths.get("foo/bar/baz/biz.txt"); |
| Path relativePath = MorePaths.createRelativeSymlink( |
| pathToDesiredLinkUnderProjectRoot, |
| pathToExistingFileUnderProjectRoot, |
| projectFilesystem); |
| assertEquals("../../foo/bar/baz/biz.txt", relativePath.toString()); |
| |
| Path absolutePathToDesiredLinkUnderProjectRoot = projectFilesystem.resolve( |
| pathToDesiredLinkUnderProjectRoot); |
| assertTrue(Files.isSymbolicLink(absolutePathToDesiredLinkUnderProjectRoot)); |
| Path targetOfSymbolicLink = Files.readSymbolicLink(absolutePathToDesiredLinkUnderProjectRoot); |
| assertEquals(relativePath, targetOfSymbolicLink); |
| |
| Path absolutePathToExistingFileUnderProjectRoot = projectFilesystem.resolve( |
| pathToExistingFileUnderProjectRoot); |
| Files.write(absolutePathToExistingFileUnderProjectRoot, "Hello, World!".getBytes()); |
| String dataReadFromSymlink = new String(Files.readAllBytes( |
| absolutePathToDesiredLinkUnderProjectRoot)); |
| assertEquals("Hello, World!", dataReadFromSymlink); |
| } |
| } |