/*
 * Copyright 2016 The Bazel Authors. 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.idea.blaze.base.sync.workspace;

import static com.google.common.truth.Truth.assertThat;

import com.google.common.collect.ImmutableList;
import com.google.idea.blaze.base.BlazeTestCase;
import com.google.idea.blaze.base.bazel.BazelBuildSystemProvider;
import com.google.idea.blaze.base.bazel.BuildSystemProvider;
import com.google.idea.blaze.base.model.primitives.ExecutionRootPath;
import com.google.idea.blaze.base.model.primitives.WorkspacePath;
import com.google.idea.blaze.base.model.primitives.WorkspaceRoot;
import com.google.idea.blaze.base.settings.Blaze.BuildSystem;
import com.intellij.openapi.extensions.ExtensionPoint;
import java.io.File;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Units tests for {@link ExecutionRootPathResolver}. */
@RunWith(JUnit4.class)
public class ExecutionRootPathResolverTest extends BlazeTestCase {

  private static final WorkspaceRoot WORKSPACE_ROOT = new WorkspaceRoot(new File("/path/to/root"));
  private static final String EXECUTION_ROOT = "/path/to/_bazel_user/1234bf129e/root";

  private ExecutionRootPathResolver pathResolver;

  @Override
  protected void initTest(Container applicationServices, Container projectServices) {
    ExtensionPoint<BuildSystemProvider> extensionPoint =
        registerExtensionPoint(BuildSystemProvider.EP_NAME, BuildSystemProvider.class);
    extensionPoint.registerExtension(new BazelBuildSystemProvider());

    pathResolver =
        new ExecutionRootPathResolver(
            BuildSystem.Bazel,
            WORKSPACE_ROOT,
            new File(EXECUTION_ROOT),
            new WorkspacePathResolverImpl(WORKSPACE_ROOT));
  }

  @Test
  public void testExternalWorkspacePathRelativeToExecRoot() {
    ImmutableList<File> files =
        pathResolver.resolveToIncludeDirectories(new ExecutionRootPath("external/guava/src"));
    assertThat(files).containsExactly(new File(EXECUTION_ROOT, "external/guava/src"));
  }

  @Test
  public void testGenfilesPathRelativeToExecRoot() {
    ImmutableList<File> files =
        pathResolver.resolveToIncludeDirectories(
            new ExecutionRootPath("bazel-out/crosstool/genfiles/res/normal"));
    assertThat(files)
        .containsExactly(new File(EXECUTION_ROOT, "bazel-out/crosstool/genfiles/res/normal"));
  }

  @Test
  public void testNonOutputPathsRelativeToWorkspaceRoot() {
    ImmutableList<File> files =
        pathResolver.resolveToIncludeDirectories(new ExecutionRootPath("tools/fast"));
    assertThat(files).containsExactly(WORKSPACE_ROOT.fileForPath(new WorkspacePath("tools/fast")));
  }

  @Test
  public void testGenfilesPathWithDifferentConfigSettingStillResolves() {
    ImmutableList<File> files =
        pathResolver.resolveToIncludeDirectories(
            new ExecutionRootPath("bazel-out/arm-linux-fastbuild/genfiles/res/normal"));
    assertThat(files)
        .containsExactly(
            new File(EXECUTION_ROOT, "bazel-out/arm-linux-fastbuild/genfiles/res/normal"));
  }
}