// Copyright (C) 2013 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.rest.change;

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

import com.google.gerrit.acceptance.PushOneCommit;
import com.google.gerrit.acceptance.TestProjectInput;
import com.google.gerrit.extensions.client.InheritableBoolean;
import com.google.gerrit.extensions.client.SubmitType;
import org.eclipse.jgit.revwalk.RevCommit;
import org.junit.Test;

public class SubmitByRebaseIfNecessaryIT extends AbstractSubmitByRebase {

  @Override
  protected SubmitType getSubmitType() {
    return SubmitType.REBASE_IF_NECESSARY;
  }

  @Test
  @TestProjectInput(useContentMerge = InheritableBoolean.TRUE)
  public void submitWithFastForward() throws Exception {
    RevCommit oldHead = getRemoteHead();
    PushOneCommit.Result change = createChange();
    submit(change.getChangeId());
    RevCommit head = getRemoteHead();
    assertThat(head.getId()).isEqualTo(change.getCommit());
    assertThat(head.getParent(0)).isEqualTo(oldHead);
    assertApproved(change.getChangeId());
    assertCurrentRevision(change.getChangeId(), 1, head);
    assertSubmitter(change.getChangeId(), 1);
    assertPersonEquals(admin.getIdent(), head.getAuthorIdent());
    assertPersonEquals(admin.getIdent(), head.getCommitterIdent());
    assertRefUpdatedEvents(oldHead, head);
    assertChangeMergedEvents(change.getChangeId(), head.name());
  }

  @Test
  @TestProjectInput(useContentMerge = InheritableBoolean.TRUE)
  public void submitWithContentMerge() throws Exception {
    RevCommit initialHead = getRemoteHead();
    PushOneCommit.Result change = createChange("Change 1", "a.txt", "aaa\nbbb\nccc\n");
    submit(change.getChangeId());
    RevCommit headAfterFirstSubmit = getRemoteHead();
    PushOneCommit.Result change2 = createChange("Change 2", "a.txt", "aaa\nbbb\nccc\nddd\n");
    submit(change2.getChangeId());

    RevCommit headAfterSecondSubmit = getRemoteHead();
    testRepo.reset(change.getCommit());
    PushOneCommit.Result change3 = createChange("Change 3", "a.txt", "bbb\nccc\n");
    submit(change3.getChangeId());
    assertRebase(testRepo, true);
    RevCommit headAfterThirdSubmit = getRemoteHead();
    assertThat(headAfterThirdSubmit.getParent(0)).isEqualTo(headAfterSecondSubmit);
    assertApproved(change3.getChangeId());
    assertCurrentRevision(change3.getChangeId(), 2, headAfterThirdSubmit);
    assertSubmitter(change3.getChangeId(), 1);
    assertSubmitter(change3.getChangeId(), 2);

    assertRefUpdatedEvents(
        initialHead,
        headAfterFirstSubmit,
        headAfterFirstSubmit,
        headAfterSecondSubmit,
        headAfterSecondSubmit,
        headAfterThirdSubmit);
    assertChangeMergedEvents(
        change.getChangeId(),
        headAfterFirstSubmit.name(),
        change2.getChangeId(),
        headAfterSecondSubmit.name(),
        change3.getChangeId(),
        headAfterThirdSubmit.name());
  }
}