# -*- coding: utf-8 -*-

"""

 (c) 2015 - Copyright Red Hat Inc

 Authors:

   Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>

"""

__requires__ = ['SQLAlchemy >= 0.8']

import pkg_resources

import json

import unittest

import shutil

import sys

import tempfile

import os

import pygit2

from mock import patch

sys.path.insert(0, os.path.join(os.path.dirname(

    os.path.abspath(__file__)), '..'))

import pagure.lib

import tests

class PagureFlaskForktests(tests.Modeltests):

    """ Tests for flask fork controller of pagure """

    def setUp(self):

        """ Set up the environnment, ran before every tests. """

        super(PagureFlaskForktests, self).setUp()

        pagure.APP.config['TESTING'] = True

        pagure.SESSION = self.session

        pagure.lib.SESSION = self.session

        pagure.ui.SESSION = self.session

        pagure.ui.app.SESSION = self.session

        pagure.ui.filters.SESSION = self.session

        pagure.ui.fork.SESSION = self.session

        pagure.ui.repo.SESSION = self.session

        pagure.ui.issues.SESSION = self.session

        pagure.APP.config['GIT_FOLDER'] = os.path.join(tests.HERE, 'repos')

        pagure.APP.config['FORK_FOLDER'] = os.path.join(tests.HERE, 'forks')

        pagure.APP.config['TICKETS_FOLDER'] = os.path.join(

            tests.HERE, 'tickets')

        pagure.APP.config['DOCS_FOLDER'] = os.path.join(

            tests.HERE, 'docs')

        pagure.APP.config['REQUESTS_FOLDER'] = os.path.join(

            tests.HERE, 'requests')

        self.app = pagure.APP.test_client()

    def set_up_git_repo(

            self, new_project=None, branch_from='feature', mtype='FF'):

        """ Set up the git repo and create the corresponding PullRequest

        object.

        """

        # Create a git repo to play with

        gitrepo = os.path.join(tests.HERE, 'repos', 'test.git')

        repo = pygit2.init_repository(gitrepo, bare=True)

        newpath = tempfile.mkdtemp(prefix='pagure-fork-test')

        repopath = os.path.join(newpath, 'test')

        clone_repo = pygit2.clone_repository(gitrepo, repopath)

        # Create a file in that git repo

        with open(os.path.join(repopath, 'sources'), 'w') as stream:

            stream.write('foo\n bar')

        clone_repo.index.add('sources')

        clone_repo.index.write()

        # Commits the files added

        tree = clone_repo.index.write_tree()

        author = pygit2.Signature(

            'Alice Author', 'alice@authors.tld')

        committer = pygit2.Signature(

            'Cecil Committer', 'cecil@committers.tld')

        clone_repo.create_commit(

            'refs/heads/master',  # the name of the reference to update

            author,

            committer,

            'Add sources file for testing',

            # binary string representing the tree object ID

            tree,

            # list of binary strings representing parents of the new commit

            []

        )

        refname = 'refs/heads/master:refs/heads/master'

        ori_remote = clone_repo.remotes[0]

        ori_remote.push(refname)

        first_commit = repo.revparse_single('HEAD')

        if mtype == 'merge':

            with open(os.path.join(repopath, '.gitignore'), 'w') as stream:

                stream.write('*~')

            clone_repo.index.add('.gitignore')

            clone_repo.index.write()

            # Commits the files added

            tree = clone_repo.index.write_tree()

            author = pygit2.Signature(

                'Alice Author', 'alice@authors.tld')

            committer = pygit2.Signature(

                'Cecil Committer', 'cecil@committers.tld')

            clone_repo.create_commit(

                'refs/heads/master',

                author,

                committer,

                'Add .gitignore file for testing',

                # binary string representing the tree object ID

                tree,

                # list of binary strings representing parents of the new commit

                [first_commit.oid.hex]

            )

            refname = 'refs/heads/master:refs/heads/master'

            ori_remote = clone_repo.remotes[0]

            ori_remote.push(refname)

        if mtype == 'conflicts':

            with open(os.path.join(repopath, 'sources'), 'w') as stream:

                stream.write('foo\n bar\nbaz')

            clone_repo.index.add('sources')

            clone_repo.index.write()

            # Commits the files added

            tree = clone_repo.index.write_tree()

            author = pygit2.Signature(

                'Alice Author', 'alice@authors.tld')

            committer = pygit2.Signature(

                'Cecil Committer', 'cecil@committers.tld')

            clone_repo.create_commit(

                'refs/heads/master',

                author,

                committer,

                'Add sources conflicting',

                # binary string representing the tree object ID

                tree,

                # list of binary strings representing parents of the new commit

                [first_commit.oid.hex]

            )

            refname = 'refs/heads/master:refs/heads/master'

            ori_remote = clone_repo.remotes[0]

            ori_remote.push(refname)

        # Set the second repo

        new_gitrepo = repopath

        if new_project:

            # Create a new git repo to play with

            new_gitrepo = os.path.join(newpath, new_project.fullname)

            if not os.path.exists(new_gitrepo):

                os.makedirs(new_gitrepo)

                new_repo = pygit2.clone_repository(gitrepo, new_gitrepo)

        repo = pygit2.Repository(new_gitrepo)

        if mtype != 'nochanges':

            # Edit the sources file again

            with open(os.path.join(new_gitrepo, 'sources'), 'w') as stream:

                stream.write('foo\n bar\nbaz\n boose')

            repo.index.add('sources')

            repo.index.write()

            # Commits the files added

            tree = repo.index.write_tree()

            author = pygit2.Signature(

                'Alice Author', 'alice@authors.tld')

            committer = pygit2.Signature(

                'Cecil Committer', 'cecil@committers.tld')

            repo.create_commit(

                'refs/heads/%s' % branch_from,

                author,

                committer,

                'A commit on branch %s' % branch_from,

                tree,

                [first_commit.oid.hex]

            )

            refname = 'refs/heads/%s' % (branch_from)

            ori_remote = repo.remotes[0]

            ori_remote.push(refname)

        # Create a PR for these changes

        project = pagure.lib.get_project(self.session, 'test')

        req = pagure.lib.new_pull_request(

            session=self.session,

            repo_from=project,

            branch_from=branch_from,

            repo_to=project,

            branch_to='master',

            title='PR from the %s branch' % branch_from,

            user='pingou',

            requestfolder=None,

        )

        self.session.commit()

        self.assertEqual(req.id, 1)

        self.assertEqual(req.title, 'PR from the %s branch' % branch_from)

        shutil.rmtree(newpath)

    @patch('pagure.lib.notify.send_email')

    def test_request_pull(self, send_email):

        """ Test the request_pull endpoint. """

        send_email.return_value = True

        tests.create_projects(self.session)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        # Non-existant project

        output = self.app.get('/foobar/pull-request/1')

        self.assertEqual(output.status_code, 404)

        # Project has no PR

        output = self.app.get('/test/pull-request/1')

        self.assertEqual(output.status_code, 404)

        self.set_up_git_repo(new_project=None, branch_from='feature')

        project = pagure.lib.get_project(self.session, 'test')

        self.assertEqual(len(project.requests), 1)

        # View the pull-request

        output = self.app.get('/test/pull-request/1')

        self.assertEqual(output.status_code, 200)

        self.assertIn(

            '<title>Pull request #1 - test - Pagure</title>', output.data)

        self.assertIn(

            'title="View file as of 2a552b">View', output.data)

    @patch('pagure.lib.notify.send_email')

    def test_merge_request_pull_FF(self, send_email):

        """ Test the merge_request_pull endpoint with a FF PR. """

        send_email.return_value = True

        self.test_request_pull()

        user = tests.FakeUser()

        with tests.user_set(pagure.APP, user):

            output = self.app.get('/test/pull-request/1')

            self.assertEqual(output.status_code, 200)

            csrf_token = output.data.split(

                'name="csrf_token" type="hidden" value="')[1].split('">')[0]

            # No CSRF

            output = self.app.post(

                '/test/pull-request/1/merge', data={}, follow_redirects=True)

            self.assertEqual(output.status_code, 200)

            self.assertIn(

                '<title>Pull request #1 - test - Pagure</title>', output.data)

            self.assertIn(

                'title="View file as of 2a552b">View', output.data)

            # Wrong project

            data = {

                'csrf_token': csrf_token,

            }

            output = self.app.post(

                '/foobar/pull-request/100/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 404)

            # Wrong project

            data = {

                'csrf_token': csrf_token,

            }

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 403)

        user.username = 'pingou'

        with tests.user_set(pagure.APP, user):

            # Wrong request id

            data = {

                'csrf_token': csrf_token,

            }

            output = self.app.post(

                '/test/pull-request/100/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 404)

            # Project w/o pull-request

            repo = pagure.lib.get_project(self.session, 'test')

            settings = repo.settings

            settings['pull_requests'] = False

            repo.settings = settings

            self.session.add(repo)

            self.session.commit()

            # Pull-request disabled

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 404)

            # Project w pull-request but only assignee can merge

            settings['pull_requests'] = True

            settings['Only_assignee_can_merge_pull-request'] = True

            repo.settings = settings

            self.session.add(repo)

            self.session.commit()

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 200)

            self.assertIn(

                '<title>Pull request #1 - test - Pagure</title>',

                output.data)

            self.assertIn(

                '
This request must be assigned to be merged
',

                output.data)

            # PR assigned but not to this user

            repo = pagure.lib.get_project(self.session, 'test')

            req = repo.requests[0]

            req.assignee_id = 2

            self.session.add(req)

            self.session.commit()

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 200)

            self.assertIn(

                '<title>Pull request #1 - test - Pagure</title>',

                output.data)

            self.assertIn(

                '
Only the assignee can merge this review
',

                output.data)

            # Project w/ minimal PR score

            settings['Only_assignee_can_merge_pull-request'] = False

            settings['Minimum_score_to_merge_pull-request'] = 2

            repo.settings = settings

            self.session.add(repo)

            self.session.commit()

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 200)

            self.assertIn(

                '<title>Pull request #1 - test - Pagure</title>',

                output.data)

            self.assertIn(

                '
This request does not have the minimum '

                'review score necessary to be merged', output.data)

            # Merge

            settings['Minimum_score_to_merge_pull-request'] = -1

            repo.settings = settings

            self.session.add(repo)

            self.session.commit()

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 200)

            self.assertIn(

                '<title>Overview - test - Pagure</title>', output.data)

            self.assertIn(

                '
Changes merged!
', output.data)

    @patch('pagure.lib.notify.send_email')

    def test_merge_request_pull_merge(self, send_email):

        """ Test the merge_request_pull endpoint with a merge PR. """

        send_email.return_value = True

        tests.create_projects(self.session)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        self.set_up_git_repo(

            new_project=None, branch_from='feature', mtype='merge')

        user = tests.FakeUser()

        user.username = 'pingou'

        with tests.user_set(pagure.APP, user):

            output = self.app.get('/test/pull-request/1')

            self.assertEqual(output.status_code, 200)

            csrf_token = output.data.split(

                'name="csrf_token" type="hidden" value="')[1].split('">')[0]

            data = {

                'csrf_token': csrf_token,

            }

            # Merge

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 200)

            self.assertIn(

                '<title>Overview - test - Pagure</title>', output.data)

            self.assertIn(

                '
Changes merged!
', output.data)

    @patch('pagure.lib.notify.send_email')

    def test_merge_request_pull_conflicts(self, send_email):

        """ Test the merge_request_pull endpoint with a conflicting PR. """

        send_email.return_value = True

        tests.create_projects(self.session)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        self.set_up_git_repo(

            new_project=None, branch_from='feature', mtype='conflicts')

        user = tests.FakeUser()

        user.username = 'pingou'

        with tests.user_set(pagure.APP, user):

            output = self.app.get('/test/pull-request/1')

            self.assertEqual(output.status_code, 200)

            csrf_token = output.data.split(

                'name="csrf_token" type="hidden" value="')[1].split('">')[0]

            data = {

                'csrf_token': csrf_token,

            }

            # Merge conflicts

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 200)

            self.assertIn(

                '<title>Pull request #1 - test - Pagure</title>',

                output.data)

            self.assertIn(

                '
Merge conflicts!
', output.data)

    @patch('pagure.lib.notify.send_email')

    def test_merge_request_pull_nochange(self, send_email):

        """ Test the merge_request_pull endpoint. """

        send_email.return_value = True

        tests.create_projects(self.session)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        self.set_up_git_repo(

            new_project=None, branch_from='master', mtype='nochanges')

        user = tests.FakeUser()

        user.username = 'pingou'

        with tests.user_set(pagure.APP, user):

            output = self.app.get('/test/pull-request/1')

            self.assertEqual(output.status_code, 200)

            csrf_token = output.data.split(

                'name="csrf_token" type="hidden" value="')[1].split('">')[0]

            data = {

                'csrf_token': csrf_token,

            }

            # Nothing to merge

            output = self.app.post(

                '/test/pull-request/1/merge', data=data, follow_redirects=True)

            self.assertEqual(output.status_code, 200)

            self.assertIn(

                '<title>Pull request #1 - test - Pagure</title>', output.data)

            self.assertIn(

                '
Nothing to do, changes were already '

                'merged', output.data)

    @patch('pagure.lib.notify.send_email')

    def test_request_pull_close(self, send_email):

        """ Test the request_pull endpoint with a closed PR. """

        send_email.return_value = True

        self.test_merge_request_pull_FF()

        output = self.app.get('/test/pull-request/1')

        self.assertEqual(output.status_code, 200)

        self.assertIn(

            '<title>Pull request #1 - test - Pagure</title>', output.data)

        self.assertIn(

            'Merged by', output.data)

        self.assertIn(

            'title="View file as of 2a552b">View', output.data)

    @patch('pagure.lib.notify.send_email')

    def test_request_pull_disabled(self, send_email):

        """ Test the request_pull endpoint with PR disabled. """

        send_email.return_value = True

        tests.create_projects(self.session)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        self.set_up_git_repo(new_project=None, branch_from='feature')

        # Project w/o pull-request

        repo = pagure.lib.get_project(self.session, 'test')

        settings = repo.settings

        settings['pull_requests'] = False

        repo.settings = settings

        self.session.add(repo)

        self.session.commit()

        output = self.app.get('/test/pull-request/1')

        self.assertEqual(output.status_code, 404)

    @patch('pagure.lib.notify.send_email')

    def test_request_pull_empty_repo(self, send_email):

        """ Test the request_pull endpoint against an empty repo. """

        send_email.return_value = True

        tests.create_projects(self.session)

        item = pagure.lib.model.Project(

            user_id=2,  # foo

            name='test',

            description='test project #1',

            hook_token='aaabbb',

            parent_id=1,

        )

        self.session.add(item)

        self.session.commit()

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'forks', 'foo'), bare=True)

        # Create a git repo to play with

        gitrepo = os.path.join(tests.HERE, 'repos', 'test.git')

        self.assertFalse(os.path.exists(gitrepo))

        os.makedirs(gitrepo)

        repo = pygit2.init_repository(gitrepo, bare=True)

        # Create a fork of this repo

        newpath = tempfile.mkdtemp(prefix='pagure-fork-test')

        gitrepo = os.path.join(tests.HERE, 'forks', 'foo', 'test.git')

        new_repo = pygit2.clone_repository(gitrepo, newpath)

        # Edit the sources file again

        with open(os.path.join(newpath, 'sources'), 'w') as stream:

            stream.write('foo\n bar\nbaz\n boose')

        new_repo.index.add('sources')

        new_repo.index.write()

        # Commits the files added

        tree = new_repo.index.write_tree()

        author = pygit2.Signature(

            'Alice Author', 'alice@authors.tld')

        committer = pygit2.Signature(

            'Cecil Committer', 'cecil@committers.tld')

        new_repo.create_commit(

            'refs/heads/feature',

            author,

            committer,

            'A commit on branch feature',

            tree,

            []

        )

        refname = 'refs/heads/feature:refs/heads/feature'

        ori_remote = new_repo.remotes[0]

        ori_remote.push(refname)

        # Create a PR for these changes

        project = pagure.lib.get_project(self.session, 'test')

        req = pagure.lib.new_pull_request(

            session=self.session,

            repo_from=item,

            branch_from='feature',

            repo_to=project,

            branch_to='master',

            title='PR from the feature branch',

            user='pingou',

            requestfolder=None,

        )

        self.session.commit()

        self.assertEqual(req.id, 1)

        self.assertEqual(req.title, 'PR from the feature branch')

        output = self.app.get('/test/pull-request/1')

        self.assertEqual(output.status_code, 200)

        self.assertIn(

            '<title>Pull request #1 - test - Pagure</title>', output.data)

        self.assertTrue(output.data.count(''), 1)

        shutil.rmtree(newpath)

    @patch('pagure.lib.notify.send_email')

    def test_request_pull_empty_fork(self, send_email):

        """ Test the request_pull endpoint from an empty fork. """

        send_email.return_value = True

        tests.create_projects(self.session)

        item = pagure.lib.model.Project(

            user_id=2,  # foo

            name='test',

            description='test project #1',

            hook_token='aaabbb',

            parent_id=1,

        )

        self.session.add(item)

        self.session.commit()

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'forks', 'foo'), bare=True)

        # Create a git repo to play with

        gitrepo = os.path.join(tests.HERE, 'repos', 'test.git')

        self.assertFalse(os.path.exists(gitrepo))

        os.makedirs(gitrepo)

        repo = pygit2.init_repository(gitrepo, bare=True)

        # Create a fork of this repo

        newpath = tempfile.mkdtemp(prefix='pagure-fork-test')

        gitrepo = os.path.join(tests.HERE, 'forks', 'foo', 'test.git')

        new_repo = pygit2.clone_repository(gitrepo, newpath)

        # Create a PR for these "changes" (there are none, both repos are

        # empty)

        project = pagure.lib.get_project(self.session, 'test')

        req = pagure.lib.new_pull_request(

            session=self.session,

            repo_from=item,

            branch_from='feature',

            repo_to=project,

            branch_to='master',

            title='PR from the feature branch',

            user='pingou',

            requestfolder=None,

        )

        self.session.commit()

        self.assertEqual(req.id, 1)

        self.assertEqual(req.title, 'PR from the feature branch')

        output = self.app.get('/test/pull-request/1', follow_redirects=True)

        self.assertEqual(output.status_code, 200)

        self.assertIn(

            '<title>Overview - test - Pagure</title>', output.data)

        self.assertIn(

            '
Fork is empty, there are no commits to '

            'request pulling', output.data)

        shutil.rmtree(newpath)

    @patch('pagure.lib.notify.send_email')

    def test_request_pulls(self, send_email):

        """ Test the request_pulls endpoint. """

        send_email.return_value = True

        # No such project

        output = self.app.get('/test/pull-requests')

        self.assertEqual(output.status_code, 404)

        tests.create_projects(self.session)

        output = self.app.get('/test/pull-requests')

        self.assertEqual(output.status_code, 200)

        self.assertIn('Pull-requests (0)', output.data)

        self.assertIn('(0 Closed)', output.data)

        self.set_up_git_repo(new_project=None, branch_from='feature')

        output = self.app.get('/test/pull-requests')

        self.assertEqual(output.status_code, 200)

        self.assertIn('Pull-requests (1)', output.data)

        self.assertIn('(0 Closed)', output.data)

        output = self.app.get('/test/pull-requests?status=Closed')

        self.assertEqual(output.status_code, 200)

        self.assertIn('Closed Pull-requests (0)', output.data)

        self.assertIn('(1 Open)', output.data)

        output = self.app.get('/test/pull-requests?status=0')

        self.assertEqual(output.status_code, 200)

        self.assertIn('Closed/Merged Pull-requests (0)', output.data)

        self.assertIn('(1 Open)', output.data)

        # Project w/o pull-request

        repo = pagure.lib.get_project(self.session, 'test')

        settings = repo.settings

        settings['pull_requests'] = False

        repo.settings = settings

        self.session.add(repo)

        self.session.commit()

        output = self.app.get('/test/pull-requests')

        self.assertEqual(output.status_code, 404)

    @patch('pagure.lib.notify.send_email')

    def test_request_pull_patch(self, send_email):

        """ Test the request_pull_patch endpoint. """

        send_email.return_value = True

        output = self.app.get('/test/pull-request/1.patch')

        self.assertEqual(output.status_code, 404)

        tests.create_projects(self.session)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        self.set_up_git_repo(

            new_project=None, branch_from='feature', mtype='merge')

        output = self.app.get('/test/pull-request/100.patch')

        self.assertEqual(output.status_code, 404)

        output = self.app.get('/test/pull-request/1.patch')

        self.assertEqual(output.status_code, 200)

        npatch = []

        for row in output.data.split('\n'):

            if row.startswith('Date:'):

                continue

            if row.startswith('From '):

                row = row.split(' ', 2)[2]

            npatch.append(row)

        exp = """Mon Sep 17 00:00:00 2001

From: Alice Author <alice@authors.tld></alice@authors.tld>

Subject: A commit on branch feature

---

diff --git a/.gitignore b/.gitignore

new file mode 100644

index 0000000..e4e5f6c

--- /dev/null

+++ b/.gitignore

@@ -0,0 +1 @@

+*~

\ No newline at end of file

diff --git a/sources b/sources

index 9f44358..2a552bb 100644

--- a/sources

+++ b/sources

@@ -1,2 +1,4 @@

 foo

- bar

\ No newline at end of file

+ bar

+baz

+ boose

\ No newline at end of file

"""

        patch = '\n'.join(npatch)

        #print patch

        self.assertEqual(patch, exp)

        # Project w/o pull-request

        repo = pagure.lib.get_project(self.session, 'test')

        settings = repo.settings

        settings['pull_requests'] = False

        repo.settings = settings

        self.session.add(repo)

        self.session.commit()

        output = self.app.get('/test/pull-request/1.patch')

        self.assertEqual(output.status_code, 404)

    @patch('pagure.lib.notify.send_email')

    def test_request_pull_patch_close(self, send_email):

        """ Test the request_pull_patch endpoint with a closed PR. """

        send_email.return_value = True

        self.test_merge_request_pull_FF()

        output = self.app.get('/test/pull-request/1.patch')

        self.assertEqual(output.status_code, 200)

        npatch = []

        for row in output.data.split('\n'):

            if row.startswith('Date:'):

                continue

            if row.startswith('From '):

                row = row.split(' ', 2)[2]

            npatch.append(row)

        exp = """Mon Sep 17 00:00:00 2001

From: Alice Author <alice@authors.tld></alice@authors.tld>

Subject: A commit on branch feature

---

diff --git a/sources b/sources

index 9f44358..2a552bb 100644

--- a/sources

+++ b/sources

@@ -1,2 +1,4 @@

 foo

- bar

\ No newline at end of file

+ bar

+baz

+ boose

\ No newline at end of file

"""

        patch = '\n'.join(npatch)

        #print patch

        self.assertEqual(patch, exp)

    @patch('pagure.lib.notify.send_email')

    def test_request_pull_patch_empty_repo(self, send_email):

        """ Test the request_pull_patch endpoint against an empty repo. """

        send_email.return_value = True

        tests.create_projects(self.session)

        item = pagure.lib.model.Project(

            user_id=2,  # foo

            name='test',

            description='test project #1',

            hook_token='aaabbb',

            parent_id=1,

        )

        self.session.add(item)

        self.session.commit()

        tests.create_projects_git(

            os.path.join(tests.HERE, 'requests'), bare=True)

        tests.create_projects_git(

            os.path.join(tests.HERE, 'forks', 'foo'), bare=True)

        # Create a git repo to play with

        gitrepo = os.path.join(tests.HERE, 'repos', 'test.git')

        self.assertFalse(os.path.exists(gitrepo))

        os.makedirs(gitrepo)

        repo = pygit2.init_repository(gitrepo, bare=True)

        # Create a fork of this repo

        newpath = tempfile.mkdtemp(prefix='pagure-fork-test')

        gitrepo = os.path.join(tests.HERE, 'forks', 'foo', 'test.git')

        new_repo = pygit2.clone_repository(gitrepo, newpath)

        # Edit the sources file again

        with open(os.path.join(newpath, 'sources'), 'w') as stream:

            stream.write('foo\n bar\nbaz\n boose')

        new_repo.index.add('sources')

        new_repo.index.write()

        # Commits the files added

        tree = new_repo.index.write_tree()

        author = pygit2.Signature(

            'Alice Author', 'alice@authors.tld')

        committer = pygit2.Signature(

            'Cecil Committer', 'cecil@committers.tld')

        new_repo.create_commit(

            'refs/heads/feature',

            author,

            committer,

            'A commit on branch feature',

            tree,

            []

        )

        refname = 'refs/heads/feature:refs/heads/feature'

        ori_remote = new_repo.remotes[0]

        ori_remote.push(refname)

        # Create a PR for these "changes" (there are none, both repos are

        # empty)

        project = pagure.lib.get_project(self.session, 'test')

        req = pagure.lib.new_pull_request(

            session=self.session,

            repo_from=item,

            branch_from='feature',

            repo_to=project,

            branch_to='master',

            title='PR from the feature branch',

            user='pingou',

            requestfolder=None,

        )

        self.session.commit()

        self.assertEqual(req.id, 1)

        self.assertEqual(req.title, 'PR from the feature branch')

        output = self.app.get('/test/pull-request/1.patch', follow_redirects=True)