/*
 * Copyright 2013 Google 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.google.common.jimfs;

import static com.google.common.jimfs.UserLookupService.createUserPrincipal;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.collect.ImmutableSet;
import java.io.IOException;
import java.nio.file.attribute.FileOwnerAttributeView;
import java.util.Set;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/**
 * Tests for {@link OwnerAttributeProvider}.
 *
 * @author Colin Decker
 */
@RunWith(JUnit4.class)
public class OwnerAttributeProviderTest
    extends AbstractAttributeProviderTest<OwnerAttributeProvider> {

  @Override
  protected OwnerAttributeProvider createProvider() {
    return new OwnerAttributeProvider();
  }

  @Override
  protected Set<? extends AttributeProvider> createInheritedProviders() {
    return ImmutableSet.of();
  }

  @Test
  public void testInitialAttributes() {
    assertThat(provider.get(file, "owner")).isEqualTo(createUserPrincipal("user"));
  }

  @Test
  public void testSet() {
    assertSetAndGetSucceeds("owner", createUserPrincipal("user"));
    assertSetFailsOnCreate("owner", createUserPrincipal("user"));

    // invalid type
    assertSetFails("owner", "root");
  }

  @Test
  public void testView() throws IOException {
    FileOwnerAttributeView view = provider.view(fileLookup(), NO_INHERITED_VIEWS);
    assertThat(view).isNotNull();

    assertThat(view.name()).isEqualTo("owner");
    assertThat(view.getOwner()).isEqualTo(createUserPrincipal("user"));

    view.setOwner(createUserPrincipal("root"));
    assertThat(view.getOwner()).isEqualTo(createUserPrincipal("root"));
    assertThat(file.getAttribute("owner", "owner")).isEqualTo(createUserPrincipal("root"));
  }
}