// Copyright (C) 2018 The Android Open Source Project
//
// 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.gerrit.acceptance;

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

import com.google.common.collect.ImmutableList;
import com.google.gerrit.acceptance.ExtensionRegistry.Registration;
import com.google.gerrit.entities.AccountGroup;
import com.google.gerrit.server.account.ListGroupMembership;
import com.google.gerrit.server.account.UniversalGroupBackend;
import com.google.gerrit.server.group.testing.TestGroupBackend;
import com.google.inject.Inject;
import org.junit.Test;

public class TestGroupBackendTest extends AbstractDaemonTest {
  @Inject private UniversalGroupBackend universalGroupBackend;
  @Inject private ExtensionRegistry extensionRegistry;

  private final TestGroupBackend testGroupBackend = new TestGroupBackend();
  private final AccountGroup.UUID testUUID = AccountGroup.uuid("testbackend:test");

  @Test
  public void handlesTestGroup() throws Exception {
    assertThat(testGroupBackend.handles(testUUID)).isTrue();
  }

  @Test
  public void universalGroupBackendHandlesTestGroup() throws Exception {
    try (Registration registration = extensionRegistry.newRegistration().add(testGroupBackend)) {
      assertThat(universalGroupBackend.handles(testUUID)).isTrue();
    }
  }

  @Test
  public void doesNotHandleLDAP() throws Exception {
    assertThat(testGroupBackend.handles(AccountGroup.uuid("ldap:1234"))).isFalse();
  }

  @Test
  public void doesNotHandleNull() throws Exception {
    assertThat(testGroupBackend.handles(null)).isFalse();
  }

  @Test
  public void returnsNullWhenGroupDoesNotExist() throws Exception {
    assertThat(testGroupBackend.get(testUUID)).isNull();
  }

  @Test
  public void returnsNullForNullGroup() throws Exception {
    assertThat(testGroupBackend.get(null)).isNull();
  }

  @Test
  public void returnsKnownGroup() throws Exception {
    testGroupBackend.create(testUUID);
    assertThat(testGroupBackend.get(testUUID)).isNotNull();
  }

  @Test
  public void returnsMembershipsForUser() throws Exception {
    testGroupBackend.create(testUUID);
    testGroupBackend.setMembershipsOf(
        admin.id(), new ListGroupMembership(ImmutableList.of(testUUID)));
    assertThat(
            testGroupBackend
                .membershipsOf(identifiedUserFactory.create(admin.id()))
                .getKnownGroups())
        .containsExactly(testUUID);
  }
}