javatests/com/google/gerrit/server/notedb/CommitMessageOutputTest.java - gerrit - Git at Google

 // Copyright (C) 2014 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.server.notedb;

 import static com.google.common.truth.Truth.assertThat;
 import static com.google.gerrit.server.notedb.ReviewerStateInternal.CC;
 import static com.google.gerrit.server.notedb.ReviewerStateInternal.REVIEWER;

 import com.google.common.collect.ImmutableList;
 import com.google.gerrit.entities.Account;
 import com.google.gerrit.entities.Address;
 import com.google.gerrit.entities.Change;
 import com.google.gerrit.entities.LabelId;
 import com.google.gerrit.entities.SubmissionId;
 import com.google.gerrit.server.CurrentUser;
 import com.google.gerrit.server.util.time.TimeUtil;
 import com.google.gerrit.testing.TestChanges;
 import java.time.ZoneId;
 import org.eclipse.jgit.lib.ObjectId;
 import org.eclipse.jgit.lib.PersonIdent;
 import org.eclipse.jgit.revwalk.RevCommit;
 import org.eclipse.jgit.revwalk.RevWalk;
 import org.junit.Test;

 public class CommitMessageOutputTest extends AbstractChangeNotesTest {
   @Test
   public void approvalsCommitFormatSimple() throws Exception {
     Change c = TestChanges.newChange(project, changeOwner.getAccountId(), 1);
     ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
     update.putApproval(LabelId.CODE_REVIEW, (short) -1);
     update.putApproval(LabelId.VERIFIED, (short) 1);
     update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
     update.putReviewer(otherUser.getAccount().id(), CC);
     update.commit();
     assertThat(update.getRefName()).isEqualTo("refs/changes/01/1/meta");
     RevCommit commit = parseCommit(update.getResult());
     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Change-id: "
             + c.getKey().get()
             + "\n"
             + "Subject: Change subject\n"
             + "Branch: refs/heads/master\n"
             + "Commit: "
             + update.getCommit().name()
             + "\n"
             + "Reviewer: Gerrit User 1 <1@gerrit>\n"
             + "CC: Gerrit User 2 <2@gerrit>\n"
             + "Label: Code-Review=-1, 1_1_1_code_review__1_1\n"
             + "Label: Verified=+1, 1_1_1_verified_1_2\n",
         commit);

     PersonIdent author = commit.getAuthorIdent();
     assertThat(author.getName()).isEqualTo("Gerrit User 1");
     assertThat(author.getEmailAddress()).isEqualTo("1@gerrit");
     assertThat(author.getWhenAsInstant().toEpochMilli())
         .isEqualTo(c.getCreatedOn().toEpochMilli() + 1000);
     assertThat(author.getZoneId()).isEqualTo(ZoneId.of("GMT-7"));

     PersonIdent committer = commit.getCommitterIdent();
     assertThat(committer.getName()).isEqualTo("Gerrit Server");
     assertThat(committer.getEmailAddress()).isEqualTo("noreply@gerrit.com");
     assertThat(committer.getWhenAsInstant()).isEqualTo(author.getWhenAsInstant());
     assertThat(committer.getZoneId()).isEqualTo(author.getZoneId());
   }

   @Test
   public void changeMessageCommitFormatSimple() throws Exception {
     Change c = TestChanges.newChange(project, changeOwner.getAccountId(), 1);
     ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
     update.setChangeMessage("Just a little code change.\nHow about a new line");
     update.commit();
     assertThat(update.getRefName()).isEqualTo("refs/changes/01/1/meta");

     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Just a little code change.\n"
             + "How about a new line\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Change-id: "
             + c.getKey().get()
             + "\n"
             + "Subject: Change subject\n"
             + "Branch: refs/heads/master\n"
             + "Commit: "
             + update.getCommit().name()
             + "\n",
         update.getResult());
   }

   @Test
   public void changeWithRevision() throws Exception {
     Change c = TestChanges.newChange(project, changeOwner.getAccountId(), 1);
     ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
     update.setChangeMessage("Foo");
     RevCommit commit = tr.commit().message("Subject").create();
     update.setCommit(rw, commit);
     update.commit();
     assertThat(update.getRefName()).isEqualTo("refs/changes/01/1/meta");

     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Foo\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Change-id: "
             + c.getKey().get()
             + "\n"
             + "Subject: Subject\n"
             + "Branch: refs/heads/master\n"
             + "Commit: "
             + commit.name()
             + "\n",
         update.getResult());
   }

   @Test
   public void approvalTombstoneCommitFormat() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.removeApproval(LabelId.CODE_REVIEW);
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n\nPatch-set: 1\nLabel: -Code-Review\n", update.getResult());
   }

   @Test
   public void submitCommitFormat() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.setSubjectForCommit("Submit patch set 1");

     SubmissionId submissionId = new SubmissionId(c);
     update.merge(
         submissionId,
         ImmutableList.of(
             submitRecord(
                 "NOT_READY",
                 null,
                 submitLabel(LabelId.VERIFIED, "OK", changeOwner.getAccountId()),
                 submitLabel(LabelId.CODE_REVIEW, "NEED", null)),
             submitRecord(
                 "NOT_READY",
                 null,
                 submitLabel(LabelId.VERIFIED, "OK", changeOwner.getAccountId()),
                 submitLabel("Alternative-Code-Review", "NEED", null))));
     update.commit();

     RevCommit commit = parseCommit(update.getResult());
     assertBodyEquals(
         "Submit patch set 1\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Status: merged\n"
             + "Submission-id: "
             + submissionId.toString()
             + "\n"
             + "Submitted-with: NOT_READY\n"
             + "Submitted-with: OK: Verified: Gerrit User 1 <1@gerrit>\n"
             + "Submitted-with: NEED: Code-Review\n"
             + "Submitted-with: NOT_READY\n"
             + "Submitted-with: OK: Verified: Gerrit User 1 <1@gerrit>\n"
             + "Submitted-with: NEED: Alternative-Code-Review\n",
         commit);

     PersonIdent author = commit.getAuthorIdent();
     assertThat(author.getName()).isEqualTo("Gerrit User 1");
     assertThat(author.getEmailAddress()).isEqualTo("1@gerrit");
     assertThat(author.getWhenAsInstant().toEpochMilli())
         .isEqualTo(c.getCreatedOn().toEpochMilli() + 2000);
     assertThat(author.getZoneId()).isEqualTo(ZoneId.of("GMT-7"));

     PersonIdent committer = commit.getCommitterIdent();
     assertThat(committer.getName()).isEqualTo("Gerrit Server");
     assertThat(committer.getEmailAddress()).isEqualTo("noreply@gerrit.com");
     assertThat(committer.getWhenAsInstant()).isEqualTo(author.getWhenAsInstant());
     assertThat(committer.getZoneId()).isEqualTo(author.getZoneId());
   }

   @Test
   public void anonymousUser() throws Exception {
     Account anon =
         Account.builder(Account.id(3), TimeUtil.now())
             .setMetaId("1234567812345678123456781234567812345678")
             .build();
     accountCache.put(anon);
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, userFactory.create(anon.id()));
     update.setChangeMessage("Comment on the change.");
     update.commit();

     RevCommit commit = parseCommit(update.getResult());
     assertBodyEquals("Update patch set 1\n\nComment on the change.\n\nPatch-set: 1\n", commit);

     PersonIdent author = commit.getAuthorIdent();
     assertThat(author.getName()).isEqualTo("Gerrit User 3");
     assertThat(author.getEmailAddress()).isEqualTo("3@gerrit");
   }

   @Test
   public void submitWithErrorMessage() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.setSubjectForCommit("Submit patch set 1");

     SubmissionId submissionId = new SubmissionId(c);
     update.merge(
         submissionId, ImmutableList.of(submitRecord("RULE_ERROR", "Problem with patch set:\n1")));
     update.commit();

     assertBodyEquals(
         "Submit patch set 1\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Status: merged\n"
             + "Submission-id: "
             + submissionId.toString()
             + "\n"
             + "Submitted-with: RULE_ERROR Problem with patch set: 1\n",
         update.getResult());
   }

   @Test
   public void noChangeMessage() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n\nPatch-set: 1\nReviewer: Gerrit User 1 <1@gerrit>\n",
         update.getResult());
   }

   @Test
   public void changeMessageWithTrailingDoubleNewline() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.setChangeMessage("Testing trailing double newline\n\n");
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Testing trailing double newline\n"
             + "\n"
             + "\n"
             + "\n"
             + "Patch-set: 1\n",
         update.getResult());
   }

   @Test
   public void changeMessageWithMultipleParagraphs() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.setChangeMessage("Testing paragraph 1\n\nTesting paragraph 2\n\nTesting paragraph 3");
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Testing paragraph 1\n"
             + "\n"
             + "Testing paragraph 2\n"
             + "\n"
             + "Testing paragraph 3\n"
             + "\n"
             + "Patch-set: 1\n",
         update.getResult());
   }

   @Test
   public void changeMessageWithTag() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.setChangeMessage("Change message with tag");
     update.setTag("jenkins");
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Change message with tag\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Tag: jenkins\n",
         update.getResult());
   }

   @Test
   public void leadingWhitespace() throws Exception {
     Change c = TestChanges.newChange(project, changeOwner.getAccountId());
     c.setCurrentPatchSet(c.currentPatchSetId(), "  " + c.getSubject(), c.getOriginalSubject());
     ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
     update.setChangeId(c.getKey().get());
     update.setBranch(c.getDest().branch());
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Change-id: "
             + c.getKey().get()
             + "\n"
             + "Subject:   Change subject\n"
             + "Branch: refs/heads/master\n"
             + "Commit: "
             + update.getCommit().name()
             + "\n",
         update.getResult());

     c = TestChanges.newChange(project, changeOwner.getAccountId());
     c.setCurrentPatchSet(c.currentPatchSetId(), "\t\t" + c.getSubject(), c.getOriginalSubject());
     update = newUpdateForNewChange(c, changeOwner);
     update.setChangeId(c.getKey().get());
     update.setBranch(c.getDest().branch());
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Change-id: "
             + c.getKey().get()
             + "\n"
             + "Subject: \t\tChange subject\n"
             + "Branch: refs/heads/master\n"
             + "Commit: "
             + update.getCommit().name()
             + "\n",
         update.getResult());
   }

   @Test
   public void realUser() throws Exception {
     Change c = newChange();
     CurrentUser ownerAsOtherUser = userFactory.runAs(null, otherUserId, changeOwner);
     ChangeUpdate update = newUpdate(c, ownerAsOtherUser);
     update.setChangeMessage("Message on behalf of other user");
     update.commit();

     RevCommit commit = parseCommit(update.getResult());
     PersonIdent author = commit.getAuthorIdent();
     assertThat(author.getName()).isEqualTo("Gerrit User 2");
     assertThat(author.getEmailAddress()).isEqualTo("2@gerrit");

     assertBodyEquals(
         "Update patch set 1\n"
             + "\n"
             + "Message on behalf of other user\n"
             + "\n"
             + "Patch-set: 1\n"
             + "Real-user: Gerrit User 1 <1@gerrit>\n",
         commit);
   }

   @Test
   public void currentPatchSet() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.setCurrentPatchSet();
     update.commit();

     assertBodyEquals("Update patch set 1\n\nPatch-set: 1\nCurrent: true\n", update.getResult());
   }

   @Test
   public void reviewerByEmail() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.putReviewerByEmail(
         Address.create("John Doe", "j.doe@gerritcodereview.com"), ReviewerStateInternal.REVIEWER);
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n\nPatch-set: 1\n"
             + "Reviewer-email: John Doe <j.doe@gerritcodereview.com>\n",
         update.getResult());
   }

   @Test
   public void ccByEmail() throws Exception {
     Change c = newChange();
     ChangeUpdate update = newUpdate(c, changeOwner);
     update.putReviewerByEmail(
         Address.create("j.doe@gerritcodereview.com"), ReviewerStateInternal.CC);
     update.commit();

     assertBodyEquals(
         "Update patch set 1\n\nPatch-set: 1\nCC-email: j.doe@gerritcodereview.com\n",
         update.getResult());
   }

   private RevCommit parseCommit(ObjectId id) throws Exception {
     if (id instanceof RevCommit) {
       return (RevCommit) id;
     }
     try (RevWalk walk = new RevWalk(repo)) {
       RevCommit commit = walk.parseCommit(id);
       walk.parseBody(commit);
       return commit;
     }
   }

   private void assertBodyEquals(String expected, ObjectId commitId) throws Exception {
     RevCommit commit = parseCommit(commitId);
     assertThat(commit.getFullMessage()).isEqualTo(expected);
   }
 }
	// Copyright (C) 2014 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.server.notedb;

	import static com.google.common.truth.Truth.assertThat;
	import static com.google.gerrit.server.notedb.ReviewerStateInternal.CC;
	import static com.google.gerrit.server.notedb.ReviewerStateInternal.REVIEWER;

	import com.google.common.collect.ImmutableList;
	import com.google.gerrit.entities.Account;
	import com.google.gerrit.entities.Address;
	import com.google.gerrit.entities.Change;
	import com.google.gerrit.entities.LabelId;
	import com.google.gerrit.entities.SubmissionId;
	import com.google.gerrit.server.CurrentUser;
	import com.google.gerrit.server.util.time.TimeUtil;
	import com.google.gerrit.testing.TestChanges;
	import java.time.ZoneId;
	import org.eclipse.jgit.lib.ObjectId;
	import org.eclipse.jgit.lib.PersonIdent;
	import org.eclipse.jgit.revwalk.RevCommit;
	import org.eclipse.jgit.revwalk.RevWalk;
	import org.junit.Test;

	public class CommitMessageOutputTest extends AbstractChangeNotesTest {
	@Test
	public void approvalsCommitFormatSimple() throws Exception {
	Change c = TestChanges.newChange(project, changeOwner.getAccountId(), 1);
	ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
	update.putApproval(LabelId.CODE_REVIEW, (short) -1);
	update.putApproval(LabelId.VERIFIED, (short) 1);
	update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
	update.putReviewer(otherUser.getAccount().id(), CC);
	update.commit();
	assertThat(update.getRefName()).isEqualTo("refs/changes/01/1/meta");
	RevCommit commit = parseCommit(update.getResult());
	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Change-id: "
	+ c.getKey().get()
	+ "\n"
	+ "Subject: Change subject\n"
	+ "Branch: refs/heads/master\n"
	+ "Commit: "
	+ update.getCommit().name()
	+ "\n"
	+ "Reviewer: Gerrit User 1 <1@gerrit>\n"
	+ "CC: Gerrit User 2 <2@gerrit>\n"
	+ "Label: Code-Review=-1, 1_1_1_code_review__1_1\n"
	+ "Label: Verified=+1, 1_1_1_verified_1_2\n",
	commit);

	PersonIdent author = commit.getAuthorIdent();
	assertThat(author.getName()).isEqualTo("Gerrit User 1");
	assertThat(author.getEmailAddress()).isEqualTo("1@gerrit");
	assertThat(author.getWhenAsInstant().toEpochMilli())
	.isEqualTo(c.getCreatedOn().toEpochMilli() + 1000);
	assertThat(author.getZoneId()).isEqualTo(ZoneId.of("GMT-7"));

	PersonIdent committer = commit.getCommitterIdent();
	assertThat(committer.getName()).isEqualTo("Gerrit Server");
	assertThat(committer.getEmailAddress()).isEqualTo("noreply@gerrit.com");
	assertThat(committer.getWhenAsInstant()).isEqualTo(author.getWhenAsInstant());
	assertThat(committer.getZoneId()).isEqualTo(author.getZoneId());
	}

	@Test
	public void changeMessageCommitFormatSimple() throws Exception {
	Change c = TestChanges.newChange(project, changeOwner.getAccountId(), 1);
	ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
	update.setChangeMessage("Just a little code change.\nHow about a new line");
	update.commit();
	assertThat(update.getRefName()).isEqualTo("refs/changes/01/1/meta");

	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Just a little code change.\n"
	+ "How about a new line\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Change-id: "
	+ c.getKey().get()
	+ "\n"
	+ "Subject: Change subject\n"
	+ "Branch: refs/heads/master\n"
	+ "Commit: "
	+ update.getCommit().name()
	+ "\n",
	update.getResult());
	}

	@Test
	public void changeWithRevision() throws Exception {
	Change c = TestChanges.newChange(project, changeOwner.getAccountId(), 1);
	ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
	update.setChangeMessage("Foo");
	RevCommit commit = tr.commit().message("Subject").create();
	update.setCommit(rw, commit);
	update.commit();
	assertThat(update.getRefName()).isEqualTo("refs/changes/01/1/meta");

	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Foo\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Change-id: "
	+ c.getKey().get()
	+ "\n"
	+ "Subject: Subject\n"
	+ "Branch: refs/heads/master\n"
	+ "Commit: "
	+ commit.name()
	+ "\n",
	update.getResult());
	}

	@Test
	public void approvalTombstoneCommitFormat() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.removeApproval(LabelId.CODE_REVIEW);
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n\nPatch-set: 1\nLabel: -Code-Review\n", update.getResult());
	}

	@Test
	public void submitCommitFormat() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.setSubjectForCommit("Submit patch set 1");

	SubmissionId submissionId = new SubmissionId(c);
	update.merge(
	submissionId,
	ImmutableList.of(
	submitRecord(
	"NOT_READY",
	null,
	submitLabel(LabelId.VERIFIED, "OK", changeOwner.getAccountId()),
	submitLabel(LabelId.CODE_REVIEW, "NEED", null)),
	submitRecord(
	"NOT_READY",
	null,
	submitLabel(LabelId.VERIFIED, "OK", changeOwner.getAccountId()),
	submitLabel("Alternative-Code-Review", "NEED", null))));
	update.commit();

	RevCommit commit = parseCommit(update.getResult());
	assertBodyEquals(
	"Submit patch set 1\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Status: merged\n"
	+ "Submission-id: "
	+ submissionId.toString()
	+ "\n"
	+ "Submitted-with: NOT_READY\n"
	+ "Submitted-with: OK: Verified: Gerrit User 1 <1@gerrit>\n"
	+ "Submitted-with: NEED: Code-Review\n"
	+ "Submitted-with: NOT_READY\n"
	+ "Submitted-with: OK: Verified: Gerrit User 1 <1@gerrit>\n"
	+ "Submitted-with: NEED: Alternative-Code-Review\n",
	commit);

	PersonIdent author = commit.getAuthorIdent();
	assertThat(author.getName()).isEqualTo("Gerrit User 1");
	assertThat(author.getEmailAddress()).isEqualTo("1@gerrit");
	assertThat(author.getWhenAsInstant().toEpochMilli())
	.isEqualTo(c.getCreatedOn().toEpochMilli() + 2000);
	assertThat(author.getZoneId()).isEqualTo(ZoneId.of("GMT-7"));

	PersonIdent committer = commit.getCommitterIdent();
	assertThat(committer.getName()).isEqualTo("Gerrit Server");
	assertThat(committer.getEmailAddress()).isEqualTo("noreply@gerrit.com");
	assertThat(committer.getWhenAsInstant()).isEqualTo(author.getWhenAsInstant());
	assertThat(committer.getZoneId()).isEqualTo(author.getZoneId());
	}

	@Test
	public void anonymousUser() throws Exception {
	Account anon =
	Account.builder(Account.id(3), TimeUtil.now())
	.setMetaId("1234567812345678123456781234567812345678")
	.build();
	accountCache.put(anon);
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, userFactory.create(anon.id()));
	update.setChangeMessage("Comment on the change.");
	update.commit();

	RevCommit commit = parseCommit(update.getResult());
	assertBodyEquals("Update patch set 1\n\nComment on the change.\n\nPatch-set: 1\n", commit);

	PersonIdent author = commit.getAuthorIdent();
	assertThat(author.getName()).isEqualTo("Gerrit User 3");
	assertThat(author.getEmailAddress()).isEqualTo("3@gerrit");
	}

	@Test
	public void submitWithErrorMessage() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.setSubjectForCommit("Submit patch set 1");

	SubmissionId submissionId = new SubmissionId(c);
	update.merge(
	submissionId, ImmutableList.of(submitRecord("RULE_ERROR", "Problem with patch set:\n1")));
	update.commit();

	assertBodyEquals(
	"Submit patch set 1\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Status: merged\n"
	+ "Submission-id: "
	+ submissionId.toString()
	+ "\n"
	+ "Submitted-with: RULE_ERROR Problem with patch set: 1\n",
	update.getResult());
	}

	@Test
	public void noChangeMessage() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.putReviewer(changeOwner.getAccount().id(), REVIEWER);
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n\nPatch-set: 1\nReviewer: Gerrit User 1 <1@gerrit>\n",
	update.getResult());
	}

	@Test
	public void changeMessageWithTrailingDoubleNewline() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.setChangeMessage("Testing trailing double newline\n\n");
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Testing trailing double newline\n"
	+ "\n"
	+ "\n"
	+ "\n"
	+ "Patch-set: 1\n",
	update.getResult());
	}

	@Test
	public void changeMessageWithMultipleParagraphs() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.setChangeMessage("Testing paragraph 1\n\nTesting paragraph 2\n\nTesting paragraph 3");
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Testing paragraph 1\n"
	+ "\n"
	+ "Testing paragraph 2\n"
	+ "\n"
	+ "Testing paragraph 3\n"
	+ "\n"
	+ "Patch-set: 1\n",
	update.getResult());
	}

	@Test
	public void changeMessageWithTag() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.setChangeMessage("Change message with tag");
	update.setTag("jenkins");
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Change message with tag\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Tag: jenkins\n",
	update.getResult());
	}

	@Test
	public void leadingWhitespace() throws Exception {
	Change c = TestChanges.newChange(project, changeOwner.getAccountId());
	c.setCurrentPatchSet(c.currentPatchSetId(), " " + c.getSubject(), c.getOriginalSubject());
	ChangeUpdate update = newUpdateForNewChange(c, changeOwner);
	update.setChangeId(c.getKey().get());
	update.setBranch(c.getDest().branch());
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Change-id: "
	+ c.getKey().get()
	+ "\n"
	+ "Subject: Change subject\n"
	+ "Branch: refs/heads/master\n"
	+ "Commit: "
	+ update.getCommit().name()
	+ "\n",
	update.getResult());

	c = TestChanges.newChange(project, changeOwner.getAccountId());
	c.setCurrentPatchSet(c.currentPatchSetId(), "\t\t" + c.getSubject(), c.getOriginalSubject());
	update = newUpdateForNewChange(c, changeOwner);
	update.setChangeId(c.getKey().get());
	update.setBranch(c.getDest().branch());
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Change-id: "
	+ c.getKey().get()
	+ "\n"
	+ "Subject: \t\tChange subject\n"
	+ "Branch: refs/heads/master\n"
	+ "Commit: "
	+ update.getCommit().name()
	+ "\n",
	update.getResult());
	}

	@Test
	public void realUser() throws Exception {
	Change c = newChange();
	CurrentUser ownerAsOtherUser = userFactory.runAs(null, otherUserId, changeOwner);
	ChangeUpdate update = newUpdate(c, ownerAsOtherUser);
	update.setChangeMessage("Message on behalf of other user");
	update.commit();

	RevCommit commit = parseCommit(update.getResult());
	PersonIdent author = commit.getAuthorIdent();
	assertThat(author.getName()).isEqualTo("Gerrit User 2");
	assertThat(author.getEmailAddress()).isEqualTo("2@gerrit");

	assertBodyEquals(
	"Update patch set 1\n"
	+ "\n"
	+ "Message on behalf of other user\n"
	+ "\n"
	+ "Patch-set: 1\n"
	+ "Real-user: Gerrit User 1 <1@gerrit>\n",
	commit);
	}

	@Test
	public void currentPatchSet() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.setCurrentPatchSet();
	update.commit();

	assertBodyEquals("Update patch set 1\n\nPatch-set: 1\nCurrent: true\n", update.getResult());
	}

	@Test
	public void reviewerByEmail() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.putReviewerByEmail(
	Address.create("John Doe", "j.doe@gerritcodereview.com"), ReviewerStateInternal.REVIEWER);
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n\nPatch-set: 1\n"
	+ "Reviewer-email: John Doe <j.doe@gerritcodereview.com>\n",
	update.getResult());
	}

	@Test
	public void ccByEmail() throws Exception {
	Change c = newChange();
	ChangeUpdate update = newUpdate(c, changeOwner);
	update.putReviewerByEmail(
	Address.create("j.doe@gerritcodereview.com"), ReviewerStateInternal.CC);
	update.commit();

	assertBodyEquals(
	"Update patch set 1\n\nPatch-set: 1\nCC-email: j.doe@gerritcodereview.com\n",
	update.getResult());
	}

	private RevCommit parseCommit(ObjectId id) throws Exception {
	if (id instanceof RevCommit) {
	return (RevCommit) id;
	}
	try (RevWalk walk = new RevWalk(repo)) {
	RevCommit commit = walk.parseCommit(id);
	walk.parseBody(commit);
	return commit;
	}
	}

	private void assertBodyEquals(String expected, ObjectId commitId) throws Exception {
	RevCommit commit = parseCommit(commitId);
	assertThat(commit.getFullMessage()).isEqualTo(expected);
	}
	}