org.eclipse.orion.server.tests.servlets.git.GitMergeSquashTest.java Source code

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/*******************************************************************************
 * Copyright (c)  2012 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.orion.server.tests.servlets.git;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import java.net.HttpURLConnection;
import java.net.URI;
import java.util.List;

import org.eclipse.core.runtime.IPath;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.MergeResult;
import org.eclipse.jgit.api.MergeResult.MergeStatus;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.merge.ResolveMerger.MergeFailureReason;
import org.eclipse.orion.internal.server.servlets.ProtocolConstants;
import org.eclipse.orion.server.core.ServerStatus;
import org.eclipse.orion.server.git.GitConstants;
import org.json.JSONArray;
import org.json.JSONObject;
import org.junit.Test;

import com.meterware.httpunit.WebRequest;
import com.meterware.httpunit.WebResponse;

public class GitMergeSquashTest extends GitTest {
    @Test
    public void testMergeSquashSelf() throws Exception {
        URI workspaceLocation = createWorkspace(getMethodName());

        String projectName = getMethodName();
        JSONObject project = createProjectOrLink(workspaceLocation, projectName, gitDir.toString());

        JSONObject gitSection = project.optJSONObject(GitConstants.KEY_GIT);
        assertNotNull(gitSection);
        String gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);

        // "git merge master"
        JSONObject merge = merge(gitHeadUri, Constants.MASTER, true);
        MergeStatus mergeResult = MergeStatus.valueOf(merge.getString(GitConstants.KEY_RESULT));
        assertEquals(MergeStatus.ALREADY_UP_TO_DATE, mergeResult);
    }

    @Test
    public void testMergeSquash() throws Exception {
        // clone a repo
        URI workspaceLocation = createWorkspace(getMethodName());
        String workspaceId = workspaceIdFromLocation(workspaceLocation);
        JSONObject project = createProjectOrLink(workspaceLocation, getMethodName(), null);
        IPath clonePath = getClonePath(workspaceId, project);
        JSONObject clone = clone(clonePath);
        String cloneContentLocation = clone.getString(ProtocolConstants.KEY_CONTENT_LOCATION);
        String cloneLocation = clone.getString(ProtocolConstants.KEY_LOCATION);
        String branchesLocation = clone.getString(GitConstants.KEY_BRANCH);

        // get project metadata
        WebRequest request = getGetFilesRequest(project.getString(ProtocolConstants.KEY_CONTENT_LOCATION));
        WebResponse response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        project = new JSONObject(response.getText());

        // create branch 'a'
        branch(branchesLocation, "a");

        // checkout 'a'
        Repository db1 = getRepositoryForContentLocation(cloneContentLocation);
        Git git = new Git(db1);
        assertBranchExist(git, "a");
        checkoutBranch(cloneLocation, "a");

        // modify while on 'a'
        JSONObject testTxt = getChild(project, "test.txt");
        modifyFile(testTxt, "change in a");

        JSONObject gitSection = project.getJSONObject(GitConstants.KEY_GIT);
        String gitIndexUri = gitSection.getString(GitConstants.KEY_INDEX);
        String gitStatusUri = gitSection.getString(GitConstants.KEY_STATUS);
        String gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);

        // "git add ."
        request = GitAddTest.getPutGitIndexRequest(gitIndexUri);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // commit all
        request = GitCommitTest.getPostGitCommitRequest(gitHeadUri, "commit on a", false);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // assert clean
        assertStatus(StatusResult.CLEAN, gitStatusUri);

        // checkout 'master'
        checkoutBranch(cloneLocation, Constants.MASTER);

        // modify a different file on master
        JSONObject folder1 = getChild(project, "folder");
        JSONObject folderTxt = getChild(folder1, "folder.txt");
        modifyFile(folderTxt, "change in master");

        gitSection = project.getJSONObject(GitConstants.KEY_GIT);
        gitIndexUri = gitSection.getString(GitConstants.KEY_INDEX);
        gitStatusUri = gitSection.getString(GitConstants.KEY_STATUS);
        gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);

        // "git add ."
        request = GitAddTest.getPutGitIndexRequest(gitIndexUri);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // commit all
        request = GitCommitTest.getPostGitCommitRequest(gitHeadUri, "commit on master", false);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // assert clean
        assertStatus(StatusResult.CLEAN, gitStatusUri);

        // merge: "git merge a"
        JSONObject merge = merge(gitHeadUri, "a", true);
        MergeStatus mergeResult = MergeStatus.valueOf(merge.getString(GitConstants.KEY_RESULT));
        assertEquals(MergeStatus.MERGED_SQUASHED, mergeResult);

        // assert clean
        //assertStatus(StatusResult.CLEAN, gitStatusUri);

        request = getGetFilesRequest(testTxt.getString(ProtocolConstants.KEY_LOCATION));
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        assertEquals("change in a", response.getText());

        request = getGetFilesRequest(folderTxt.getString(ProtocolConstants.KEY_LOCATION));
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        assertEquals("change in master", response.getText());

        // TODO: check commits, bug 340051
    }

    @Test
    public void testMergeSquashAlreadyUpToDate() throws Exception {
        URI workspaceLocation = createWorkspace(getMethodName());

        String projectName = getMethodName();
        JSONObject project = createProjectOrLink(workspaceLocation, projectName, gitDir.toString());

        JSONObject testTxt = getChild(project, "test.txt");
        modifyFile(testTxt, "change in master");

        JSONObject gitSection = project.getJSONObject(GitConstants.KEY_GIT);
        String gitIndexUri = gitSection.getString(GitConstants.KEY_INDEX);
        String gitStatusUri = gitSection.getString(GitConstants.KEY_STATUS);
        String gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);

        // "git add ."
        WebRequest request = GitAddTest.getPutGitIndexRequest(gitIndexUri);
        WebResponse response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        assertStatus(new StatusResult().setChanged(1), gitStatusUri);

        // "git merge master"
        JSONObject merge = merge(gitHeadUri, Constants.MASTER, true);
        MergeStatus mergeResult = MergeResult.MergeStatus.valueOf(merge.getString(GitConstants.KEY_RESULT));
        assertEquals(MergeResult.MergeStatus.ALREADY_UP_TO_DATE, mergeResult);

        // status hasn't changed
        assertStatus(new StatusResult().setChanged(1), gitStatusUri);
    }

    @Test
    public void testMergeSquashConflict() throws Exception {
        // clone a repo
        URI workspaceLocation = createWorkspace(getMethodName());
        String workspaceId = workspaceIdFromLocation(workspaceLocation);
        JSONObject project = createProjectOrLink(workspaceLocation, getMethodName(), null);
        IPath clonePath = getClonePath(workspaceId, project);
        JSONObject clone = clone(clonePath);
        String cloneContentLocation = clone.getString(ProtocolConstants.KEY_CONTENT_LOCATION);
        String cloneLocation = clone.getString(ProtocolConstants.KEY_LOCATION);
        String branchesLocation = clone.getString(GitConstants.KEY_BRANCH);

        // get project metadata
        WebRequest request = getGetFilesRequest(project.getString(ProtocolConstants.KEY_CONTENT_LOCATION));
        WebResponse response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        project = new JSONObject(response.getText());
        JSONObject gitSection = project.optJSONObject(GitConstants.KEY_GIT);
        assertNotNull(gitSection);
        String gitRemoteUri = gitSection.optString(GitConstants.KEY_REMOTE, null);
        assertNotNull(gitRemoteUri);

        // create branch 'a'
        branch(branchesLocation, "a");

        // checkout 'a'
        Repository db1 = getRepositoryForContentLocation(cloneContentLocation);
        Git git = new Git(db1);
        assertBranchExist(git, "a");
        checkoutBranch(cloneLocation, "a");

        // modify while on 'a'
        JSONObject testTxt = getChild(project, "test.txt");
        modifyFile(testTxt, "change in a");

        gitSection = project.getJSONObject(GitConstants.KEY_GIT);
        String gitIndexUri = gitSection.getString(GitConstants.KEY_INDEX);
        String gitStatusUri = gitSection.getString(GitConstants.KEY_STATUS);
        String gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);

        // "git add ."
        request = GitAddTest.getPutGitIndexRequest(gitIndexUri);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // commit all
        request = GitCommitTest.getPostGitCommitRequest(gitHeadUri, "commit on a", false);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // assert clean
        assertStatus(StatusResult.CLEAN, gitStatusUri);

        // checkout 'master'
        checkoutBranch(cloneLocation, Constants.MASTER);

        // modify the same file on master
        modifyFile(testTxt, "change in master");

        gitSection = project.getJSONObject(GitConstants.KEY_GIT);
        gitIndexUri = gitSection.getString(GitConstants.KEY_INDEX);
        gitStatusUri = gitSection.getString(GitConstants.KEY_STATUS);
        gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);

        // "git add ."
        request = GitAddTest.getPutGitIndexRequest(gitIndexUri);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // commit all
        request = GitCommitTest.getPostGitCommitRequest(gitHeadUri, "commit on master", false);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // assert clean
        assertStatus(StatusResult.CLEAN, gitStatusUri);

        // merge: "git merge a"
        JSONObject merge = merge(gitHeadUri, "a", true);
        MergeStatus mergeResult = MergeStatus.valueOf(merge.getString(GitConstants.KEY_RESULT));
        assertEquals(MergeStatus.CONFLICTING, mergeResult);

        // check status
        assertStatus(new StatusResult().setConflictingNames("test.txt"), gitStatusUri);

        request = getGetFilesRequest(testTxt.getString(ProtocolConstants.KEY_LOCATION));
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        String[] responseLines = response.getText().split("\n");
        assertEquals(5, responseLines.length);
        assertEquals("<<<<<<< HEAD", responseLines[0]);
        assertEquals("change in master", responseLines[1]);
        assertEquals("=======", responseLines[2]);
        assertEquals("change in a", responseLines[3]);
        // ignore the last line since it's different each time
        // assertEquals(">>>>>>> c5ddb0e22e7e829683bb3b336ca6cb24a1b5bb2e", responseLines[4]);

        // TODO: check commits, bug 340051
    }

    @Test
    public void testMergeSquashIntoLocalFailedDirtyWorkTree() throws Exception {
        // clone a repo
        URI workspaceLocation = createWorkspace(getMethodName());
        String workspaceId = workspaceIdFromLocation(workspaceLocation);
        JSONObject project = createProjectOrLink(workspaceLocation, getMethodName(), null);
        IPath clonePath = getClonePath(workspaceId, project);
        clone(clonePath);

        // get project metadata
        WebRequest request = getGetFilesRequest(project.getString(ProtocolConstants.KEY_CONTENT_LOCATION));
        WebResponse response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        project = new JSONObject(response.getText());
        JSONObject gitSection = project.getJSONObject(GitConstants.KEY_GIT);
        String gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);
        String gitRemoteUri = gitSection.getString(GitConstants.KEY_REMOTE);

        // add a parallel commit in secondary clone and push it to the remote
        JSONObject project2 = createProjectOrLink(workspaceLocation, getMethodName() + "2", null);
        IPath clonePath2 = getClonePath(workspaceId, project2);
        clone(clonePath2);

        // get project2 metadata
        request = getGetFilesRequest(project2.getString(ProtocolConstants.KEY_CONTENT_LOCATION));
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        project2 = new JSONObject(response.getText());
        JSONObject gitSection2 = project2.getJSONObject(GitConstants.KEY_GIT);
        String gitRemoteUri2 = gitSection2.getString(GitConstants.KEY_REMOTE);

        JSONObject testTxt = getChild(project2, "test.txt");
        modifyFile(testTxt, "change in secondary");
        addFile(testTxt);
        commitFile(testTxt, "commit on branch", false);

        ServerStatus pushStatus = push(gitRemoteUri2, 1, 0, Constants.MASTER, Constants.HEAD, false);
        assertEquals(true, pushStatus.isOK());

        // modify on master and try to merge
        testTxt = getChild(project, "test.txt");
        modifyFile(testTxt, "dirty");

        JSONObject masterDetails = getRemoteBranch(gitRemoteUri, 1, 0, Constants.MASTER);
        String masterLocation = masterDetails.getString(ProtocolConstants.KEY_LOCATION);
        fetch(masterLocation);
        JSONObject merge = merge(gitHeadUri, Constants.DEFAULT_REMOTE_NAME + "/" + Constants.MASTER, true);

        MergeStatus mergeResult = MergeStatus.valueOf(merge.getString(GitConstants.KEY_RESULT));
        assertEquals(MergeStatus.FAILED, mergeResult);
        JSONObject failingPaths = merge.getJSONObject(GitConstants.KEY_FAILING_PATHS);
        assertEquals(1, failingPaths.length());
        assertEquals(MergeFailureReason.DIRTY_WORKTREE,
                MergeFailureReason.valueOf(failingPaths.getString("test.txt")));
    }

    @Test
    public void testMergeSquashFailedDirtyWorkTree() throws Exception {
        // clone a repo
        URI workspaceLocation = createWorkspace(getMethodName());
        String workspaceId = workspaceIdFromLocation(workspaceLocation);
        JSONObject project = createProjectOrLink(workspaceLocation, getMethodName(), null);
        IPath clonePath = getClonePath(workspaceId, project);
        JSONObject clone = clone(clonePath);
        String cloneLocation = clone.getString(ProtocolConstants.KEY_LOCATION);
        String branchesLocation = clone.getString(GitConstants.KEY_BRANCH);

        // get project metadata
        WebRequest request = getGetFilesRequest(project.getString(ProtocolConstants.KEY_CONTENT_LOCATION));
        WebResponse response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        project = new JSONObject(response.getText());
        JSONObject gitSection = project.getJSONObject(GitConstants.KEY_GIT);

        final String branch = "branch";

        branch(branchesLocation, branch);
        checkoutBranch(cloneLocation, branch);

        // create commit on branch
        JSONObject testTxt = getChild(project, "test.txt");
        modifyFile(testTxt, "change in a");
        addFile(testTxt);
        commitFile(testTxt, "commit on branch", false);

        // assert clean
        gitSection = project.getJSONObject(GitConstants.KEY_GIT);
        String gitStatusUri = gitSection.getString(GitConstants.KEY_STATUS);
        assertStatus(StatusResult.CLEAN, gitStatusUri);

        // checkout 'master'
        checkoutBranch(cloneLocation, Constants.MASTER);

        // modify the same file on master
        modifyFile(testTxt, "change in master");

        gitSection = project.getJSONObject(GitConstants.KEY_GIT);
        gitStatusUri = gitSection.getString(GitConstants.KEY_STATUS);
        String gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);

        addFile(testTxt);
        commitFile(testTxt, "commit on master", false);

        // modify again
        modifyFile(testTxt, "change in the working dir");

        // assert clean
        assertStatus(new StatusResult().setModified(1), gitStatusUri);

        // merge: "git merge branch"
        JSONObject merge = merge(gitHeadUri, branch, true);
        MergeStatus mergeResult = MergeStatus.valueOf(merge.getString(GitConstants.KEY_RESULT));
        assertEquals(MergeStatus.FAILED, mergeResult);
        JSONObject failingPaths = merge.getJSONObject(GitConstants.KEY_FAILING_PATHS);
        assertEquals(1, failingPaths.length());
        assertEquals(MergeFailureReason.DIRTY_WORKTREE,
                MergeFailureReason.valueOf(failingPaths.getString("test.txt")));
    }

    @Test
    public void testMergeSquashRemote() throws Exception {
        URI workspaceLocation = createWorkspace(getMethodName());
        String workspaceId = workspaceIdFromLocation(workspaceLocation);

        // clone1
        JSONObject project1 = createProjectOrLink(workspaceLocation, getMethodName() + "1", null);
        IPath clonePath1 = getClonePath(workspaceId, project1);
        clone(clonePath1);

        // get project1 metadata
        WebRequest request = getGetFilesRequest(project1.getString(ProtocolConstants.KEY_CONTENT_LOCATION));
        WebResponse response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        project1 = new JSONObject(response.getText());
        JSONObject gitSection1 = project1.getJSONObject(GitConstants.KEY_GIT);
        String gitRemoteUri1 = gitSection1.getString(GitConstants.KEY_REMOTE);

        // clone2
        JSONObject project2 = createProjectOrLink(workspaceLocation, getMethodName() + "2", null);
        IPath clonePath2 = getClonePath(workspaceId, project2);
        clone(clonePath2);

        // get project2 metadata
        request = getGetFilesRequest(project2.getString(ProtocolConstants.KEY_CONTENT_LOCATION));
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        project2 = new JSONObject(response.getText());
        JSONObject gitSection2 = project2.getJSONObject(GitConstants.KEY_GIT);
        String gitRemoteUri2 = gitSection2.getString(GitConstants.KEY_REMOTE);
        String gitIndexUri2 = gitSection2.getString(GitConstants.KEY_INDEX);
        String gitHeadUri2 = gitSection2.getString(GitConstants.KEY_HEAD);

        // clone1: get remote details
        JSONObject details = getRemoteBranch(gitRemoteUri1, 1, 0, Constants.MASTER);
        String refId1 = details.getString(ProtocolConstants.KEY_ID);
        String remoteBranchLocation1 = details.getString(ProtocolConstants.KEY_LOCATION);

        // clone2: change
        JSONObject testTxt = getChild(project2, "test.txt");
        modifyFile(testTxt, "incoming change");

        // clone2: add
        request = GitAddTest.getPutGitIndexRequest(gitIndexUri2);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // clone2: commit
        request = GitCommitTest.getPostGitCommitRequest(gitHeadUri2, "incoming change commit", false);
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

        // clone2: push
        ServerStatus pushStatus = push(gitRemoteUri2, 1, 0, Constants.MASTER, Constants.HEAD, false);
        assertEquals(true, pushStatus.isOK());

        // clone1: fetch
        request = GitFetchTest.getPostGitRemoteRequest(remoteBranchLocation1, true, false);
        response = webConversation.getResponse(request);
        ServerStatus status = waitForTask(response);
        assertTrue(status.toString(), status.isOK());

        // clone1: get remote details again
        JSONObject remoteBranch = getRemoteBranch(gitRemoteUri1, 1, 0, Constants.MASTER);
        String newRefId1 = remoteBranch.getString(ProtocolConstants.KEY_ID);
        // an incoming commit
        assertFalse(refId1.equals(newRefId1));

        // clone1: merge into HEAD, "git merge origin/master"
        //String gitCommitUri = remoteBranch.getString(GitConstants.KEY_COMMIT);
        // TODO: should fail when POSTing to the above URI, see bug 342845

        String gitHeadUri = remoteBranch.getString(GitConstants.KEY_HEAD);

        // merge
        JSONObject merge = merge(gitHeadUri, newRefId1, true);
        MergeStatus mergeResult = MergeStatus.valueOf(merge.getString(GitConstants.KEY_RESULT));
        assertEquals(MergeStatus.FAST_FORWARD_SQUASHED, mergeResult);

        request = getGetFilesRequest(getChild(project1, "test.txt").getString(ProtocolConstants.KEY_LOCATION));
        response = webConversation.getResponse(request);
        assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
        assertEquals("incoming change", response.getText());
    }

    @Test
    public void testMergeSquashRemovingFolders() throws Exception {
        // see org.eclipse.jgit.api.MergeCommandTest.testMergeRemovingFolders()
        URI workspaceLocation = createWorkspace(getMethodName());
        IPath[] clonePaths = createTestProjects(workspaceLocation);

        for (IPath clonePath : clonePaths) {
            // clone a  repo
            JSONObject clone = clone(clonePath);
            String cloneContentLocation = clone.getString(ProtocolConstants.KEY_CONTENT_LOCATION);

            // get project/folder metadata
            WebRequest request = getGetFilesRequest(cloneContentLocation);
            WebResponse response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
            JSONObject folder = new JSONObject(response.getText());
            String folderChildrenLocation = folder.getString(ProtocolConstants.KEY_CHILDREN_LOCATION);
            String folderLocation = folder.getString(ProtocolConstants.KEY_LOCATION);
            JSONObject gitSection = folder.getJSONObject(GitConstants.KEY_GIT);
            String gitIndexUri = gitSection.getString(GitConstants.KEY_INDEX);
            String gitHeadUri = gitSection.getString(GitConstants.KEY_HEAD);

            String folderName = "folder1";
            request = getPostFilesRequest(folderLocation + "/", getNewDirJSON(folderName).toString(), folderName);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_CREATED, response.getResponseCode());
            JSONObject folder1 = getChild(folder, "folder1");

            String fileName = "file1.txt";
            request = getPostFilesRequest(folder1.getString(ProtocolConstants.KEY_LOCATION),
                    getNewFileJSON(fileName).toString(), fileName);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_CREATED, response.getResponseCode());

            fileName = "file2.txt";
            request = getPostFilesRequest(folder1.getString(ProtocolConstants.KEY_LOCATION),
                    getNewFileJSON(fileName).toString(), fileName);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_CREATED, response.getResponseCode());

            folderName = "folder2";
            request = getPostFilesRequest(folderLocation + "/", getNewDirJSON(folderName).toString(), folderName);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_CREATED, response.getResponseCode());
            JSONObject folder2 = getChild(folder, "folder2");

            fileName = "file1.txt";
            request = getPostFilesRequest(folder2.getString(ProtocolConstants.KEY_LOCATION),
                    getNewFileJSON(fileName).toString(), fileName);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_CREATED, response.getResponseCode());

            fileName = "file2.txt";
            request = getPostFilesRequest(folder2.getString(ProtocolConstants.KEY_LOCATION),
                    getNewFileJSON(fileName).toString(), fileName);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_CREATED, response.getResponseCode());

            request = GitAddTest.getPutGitIndexRequest(gitIndexUri);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

            request = GitCommitTest.getPostGitCommitRequest(gitHeadUri, "folders and files", false);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

            deleteFile(folder1);

            deleteFile(folder2);

            request = GitAddTest.getPutGitIndexRequest(gitIndexUri);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

            request = GitCommitTest.getPostGitCommitRequest(gitHeadUri, "removing folders", false);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());

            JSONArray commitsArray = log(gitHeadUri);
            assertEquals(3, commitsArray.length());
            JSONObject commit = commitsArray.getJSONObject(0);
            assertEquals("removing folders", commit.get(GitConstants.KEY_COMMIT_MESSAGE));
            String toMerge = commit.getString(ProtocolConstants.KEY_NAME);
            commit = commitsArray.getJSONObject(1);
            assertEquals("folders and files", commit.get(GitConstants.KEY_COMMIT_MESSAGE));
            String toCheckout = commit.getString(ProtocolConstants.KEY_NAME);

            Repository db1 = getRepositoryForContentLocation(cloneContentLocation);
            Git git = new Git(db1);
            git.checkout().setName(toCheckout).call();

            JSONObject merge = merge(gitHeadUri, toMerge, true);
            MergeStatus mergeResult = MergeStatus.valueOf(merge.getString(GitConstants.KEY_RESULT));
            assertEquals(MergeStatus.FAST_FORWARD_SQUASHED, mergeResult);

            request = getGetFilesRequest(folderChildrenLocation);
            response = webConversation.getResponse(request);
            assertEquals(HttpURLConnection.HTTP_OK, response.getResponseCode());
            List<JSONObject> children = getDirectoryChildren(new JSONObject(response.getText()));
            assertNull(getChildByName(children, "folder1"));
            assertNull(getChildByName(children, "folder2"));
        }
    }
}