/*
* 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.step.fs;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import com.facebook.buck.io.ProjectFilesystem;
import com.facebook.buck.step.ExecutionContext;
import com.facebook.buck.step.TestExecutionContext;
import com.google.common.collect.ImmutableMap;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Optional;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
public class SymlinkTreeStepTest {
@Rule public final TemporaryFolder tmpDir = new TemporaryFolder();
@Test
public void testSymlinkFiles() throws InterruptedException, IOException {
ProjectFilesystem projectFilesystem = new ProjectFilesystem(tmpDir.getRoot().toPath());
ExecutionContext context = TestExecutionContext.newInstance();
Path root = Paths.get("symlink-tree-root");
Path link1 = Paths.get("link");
Path source1 = Paths.get("source1");
projectFilesystem.writeContentsToPath("foo", source1);
Path link2 = Paths.get("a", "link", "under", "directory");
Path source2 = Paths.get("source2");
projectFilesystem.writeContentsToPath("bar", source2);
SymlinkTreeStep step =
new SymlinkTreeStep(
projectFilesystem,
root,
ImmutableMap.of(
link1, source1,
link2, source2));
step.execute(context);
assertTrue(projectFilesystem.exists(root.resolve(link1)));
assertEquals(Optional.of("foo"), projectFilesystem.readFirstLine(root.resolve(link1)));
assertTrue(projectFilesystem.exists(root.resolve(link2)));
assertEquals(Optional.of("bar"), projectFilesystem.readFirstLine(root.resolve(link2)));
// Modify the original file and see if the linked file changes as well.
projectFilesystem.writeContentsToPath("new", source1);
assertEquals(Optional.of("new"), projectFilesystem.readFirstLine(root.resolve(link1)));
}
}