test/com/facebook/buck/rules/ExportFileRuleTest.java

/*
 * Copyright 2012-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.rules;

import static org.junit.Assert.assertEquals;

import com.facebook.buck.graph.MutableDirectedGraph;
import com.facebook.buck.model.BuildTarget;
import com.facebook.buck.model.BuildTargetFactory;
import com.facebook.buck.model.BuildTargetPattern;
import com.facebook.buck.shell.Command;
import com.facebook.buck.shell.CommandFailedException;
import com.facebook.buck.shell.CommandRunner;
import com.facebook.buck.command.io.MkdirAndSymlinkFileCommand;
import com.facebook.buck.util.AndroidPlatformTarget;
import com.facebook.buck.util.BuckConstant;
import com.facebook.buck.util.ProjectFilesystem;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableSortedSet;
import com.google.common.eventbus.EventBus;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;

import org.junit.Before;
import org.junit.Test;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.Callable;

public class ExportFileRuleTest {

  private BuildRuleParams params;
  private BuildContext context;
  private File root;

  @Before
  public void createFixtures() {
    BuildTarget target = BuildTargetFactory.newInstance("//:example.html");
    params = new BuildRuleParams(
        target, ImmutableSortedSet.<BuildRule>of(), ImmutableSet.<BuildTargetPattern>of());
    root = new File(".");
    context = getBuildContext(root);
  }

  @Test
  public void shouldSetSrcAndOutToNameParameterIfNeitherAreSet() throws IOException {
    ExportFileRule rule = new ExportFileRule(
        params, Optional.<String>absent(), Optional.<String>absent());

    List<Command> commands = rule.buildInternal(context);

    MkdirAndSymlinkFileCommand expected = new MkdirAndSymlinkFileCommand(
        new File(root, "example.html"), new File(BuckConstant.GEN_DIR, "example.html"));
    assertEquals(ImmutableList.of(expected), commands);
  }

  @Test
  public void shouldSetOutToNameParamValueIfSrcIsSet() throws IOException {
    ExportFileRule rule = new ExportFileRule(
        params, Optional.<String>absent(), Optional.of("fish"));

    List<Command> commands = rule.buildInternal(context);

    MkdirAndSymlinkFileCommand expected = new MkdirAndSymlinkFileCommand(
        new File(root, "example.html"), new File(BuckConstant.GEN_DIR, "fish"));
    assertEquals(ImmutableList.of(expected), commands);
  }

  @Test
  public void shouldSetOutAndSrcAndNameParametersSeparately() throws IOException {
    ExportFileRule rule = new ExportFileRule(params, Optional.of("chips"), Optional.of("fish"));

    List<Command> commands = rule.buildInternal(context);

    MkdirAndSymlinkFileCommand expected = new MkdirAndSymlinkFileCommand(
        new File(root, "chips"), new File(BuckConstant.GEN_DIR, "fish"));
    assertEquals(ImmutableList.of(expected), commands);
  }

  private BuildContext getBuildContext(File root) {
    return BuildContext.builder()
        .setProjectRoot(root)
        .setProjectFilesystem(new ProjectFilesystem(root))
        .setEventBus(new EventBus())
        .setAndroidBootclasspathForAndroidPlatformTarget(Optional.<AndroidPlatformTarget>absent())
        .setJavaPackageFinder(new JavaPackageFinder() {
          @Override
          public String findJavaPackageFolderForPath(String pathRelativeToProjectRoot) {
            return null;
          }

          @Override
          public String findJavaPackageForPath(String pathRelativeToProjectRoot) {
            return null;
          }
        })
        .setDependencyGraph(new DependencyGraph(new MutableDirectedGraph<BuildRule>()))
        .setCommandRunner(new CommandRunner() {
          @Override
          public void runCommand(Command command) throws CommandFailedException {
            // Do nothing
          }

          @Override
          public <T> ListenableFuture<T> runCommandsAndYieldResult(List<Command> commands, Callable<T> interpretResults) {
            return null;
          }

          @Override
          public ListeningExecutorService getListeningExecutorService() {
            return null;
          }
        })
        .build();
  }
}