Merge tag 'u-boot-atmel-fixes-2021.01-b' of https://gitlab.denx.de/u-boot/custodians...
[platform/kernel/u-boot.git] / tools / patman / func_test.py
index 76319ff..74a144d 100644 (file)
@@ -4,7 +4,8 @@
 # Copyright 2017 Google, Inc
 #
 
-import contextlib
+"""Functional tests for checking that patman behaves correctly"""
+
 import os
 import re
 import shutil
@@ -12,66 +13,109 @@ import sys
 import tempfile
 import unittest
 
+
+from patman.commit import Commit
+from patman import control
+from patman import gitutil
+from patman import patchstream
+from patman.patchstream import PatchStream
+from patman.series import Series
+from patman import settings
+from patman import terminal
+from patman import tools
+from patman.test_util import capture_sys_output
+
 try:
-    from StringIO import StringIO
-except ImportError:
-    from io import StringIO
-
-import gitutil
-import patchstream
-import settings
-import tools
-
-
-@contextlib.contextmanager
-def capture():
-    import sys
-    oldout,olderr = sys.stdout, sys.stderr
-    try:
-        out=[StringIO(), StringIO()]
-        sys.stdout,sys.stderr = out
-        yield out
-    finally:
-        sys.stdout,sys.stderr = oldout, olderr
-        out[0] = out[0].getvalue()
-        out[1] = out[1].getvalue()
+    import pygit2
+    HAVE_PYGIT2 = True
+    from patman import status
+except ModuleNotFoundError:
+    HAVE_PYGIT2 = False
 
 
 class TestFunctional(unittest.TestCase):
+    """Functional tests for checking that patman behaves correctly"""
+    leb = (b'Lord Edmund Blackadd\xc3\xabr <weasel@blackadder.org>'.
+           decode('utf-8'))
+    fred = 'Fred Bloggs <f.bloggs@napier.net>'
+    joe = 'Joe Bloggs <joe@napierwallies.co.nz>'
+    mary = 'Mary Bloggs <mary@napierwallies.co.nz>'
+    commits = None
+    patches = None
+
     def setUp(self):
         self.tmpdir = tempfile.mkdtemp(prefix='patman.')
+        self.gitdir = os.path.join(self.tmpdir, 'git')
+        self.repo = None
 
     def tearDown(self):
         shutil.rmtree(self.tmpdir)
+        terminal.SetPrintTestMode(False)
 
     @staticmethod
-    def GetPath(fname):
+    def _get_path(fname):
+        """Get the path to a test file
+
+        Args:
+            fname (str): Filename to obtain
+
+        Returns:
+            str: Full path to file in the test directory
+        """
         return os.path.join(os.path.dirname(os.path.realpath(sys.argv[0])),
                             'test', fname)
 
     @classmethod
-    def GetText(self, fname):
-        return open(self.GetPath(fname), encoding='utf-8').read()
+    def _get_text(cls, fname):
+        """Read a file as text
+
+        Args:
+            fname (str): Filename to read
+
+        Returns:
+            str: Contents of file
+        """
+        return open(cls._get_path(fname), encoding='utf-8').read()
 
     @classmethod
-    def GetPatchName(self, subject):
+    def _get_patch_name(cls, subject):
+        """Get the filename of a patch given its subject
+
+        Args:
+            subject (str): Patch subject
+
+        Returns:
+            str: Filename for that patch
+        """
         fname = re.sub('[ :]', '-', subject)
         return fname.replace('--', '-')
 
-    def CreatePatchesForTest(self, series):
+    def _create_patches_for_test(self, series):
+        """Create patch files for use by tests
+
+        This copies patch files from the test directory as needed by the series
+
+        Args:
+            series (Series): Series containing commits to convert
+
+        Returns:
+            tuple:
+                str: Cover-letter filename, or None if none
+                fname_list: list of str, each a patch filename
+        """
         cover_fname = None
         fname_list = []
         for i, commit in enumerate(series.commits):
-            clean_subject = self.GetPatchName(commit.subject)
+            clean_subject = self._get_patch_name(commit.subject)
             src_fname = '%04d-%s.patch' % (i + 1, clean_subject[:52])
             fname = os.path.join(self.tmpdir, src_fname)
-            shutil.copy(self.GetPath(src_fname), fname)
+            shutil.copy(self._get_path(src_fname), fname)
             fname_list.append(fname)
         if series.get('cover'):
             src_fname = '0000-cover-letter.patch'
             cover_fname = os.path.join(self.tmpdir, src_fname)
             fname = os.path.join(self.tmpdir, src_fname)
-            shutil.copy(self.GetPath(src_fname), fname)
+            shutil.copy(self._get_path(src_fname), fname)
 
         return cover_fname, fname_list
 
@@ -85,19 +129,33 @@ class TestFunctional(unittest.TestCase):
             Series-prefix: RFC
             Series-cc: Stefan Brüns <stefan.bruens@rwth-aachen.de>
             Cover-letter-cc: Lord Mëlchett <clergy@palace.gov>
-            Series-version: 2
+            Series-version: 3
+            Patch-cc: fred
+            Series-process-log: sort, uniq
             Series-changes: 4
             - Some changes
+            - Multi
+              line
+              change
+
+            Commit-changes: 2
+            - Changes only for this commit
+
+            Cover-changes: 4
+            - Some notes for the cover letter
 
             Cover-letter:
             test: A test patch series
             This is a test of how the cover
-            leter
+            letter
             works
             END
 
         and this in the first commit:
 
+            Commit-changes: 2
+            - second revision change
+
             Series-notes:
             some notes
             about some things
@@ -132,80 +190,78 @@ class TestFunctional(unittest.TestCase):
         stefan = b'Stefan Br\xc3\xbcns <stefan.bruens@rwth-aachen.de>'.decode('utf-8')
         rick = 'Richard III <richard@palace.gov>'
         mel = b'Lord M\xc3\xablchett <clergy@palace.gov>'.decode('utf-8')
-        ed = b'Lond Edmund Blackadd\xc3\xabr <weasel@blackadder.org'.decode('utf-8')
-        fred = 'Fred Bloggs <f.bloggs@napier.net>'
         add_maintainers = [stefan, rick]
         dry_run = True
         in_reply_to = mel
         count = 2
         settings.alias = {
-                'fdt': ['simon'],
-                'u-boot': ['u-boot@lists.denx.de'],
-                'simon': [ed],
-                'fred': [fred],
+            'fdt': ['simon'],
+            'u-boot': ['u-boot@lists.denx.de'],
+            'simon': [self.leb],
+            'fred': [self.fred],
         }
 
-        text = self.GetText('test01.txt')
-        series = patchstream.GetMetaDataForTest(text)
-        cover_fname, args = self.CreatePatchesForTest(series)
-        with capture() as out:
-            patchstream.FixPatches(series, args)
+        text = self._get_text('test01.txt')
+        series = patchstream.get_metadata_for_test(text)
+        cover_fname, args = self._create_patches_for_test(series)
+        with capture_sys_output() as out:
+            patchstream.fix_patches(series, args)
             if cover_fname and series.get('cover'):
-                patchstream.InsertCoverLetter(cover_fname, series, count)
+                patchstream.insert_cover_letter(cover_fname, series, count)
             series.DoChecks()
             cc_file = series.MakeCcFile(process_tags, cover_fname,
                                         not ignore_bad_tags, add_maintainers,
                                         None)
-            cmd = gitutil.EmailPatches(series, cover_fname, args,
-                    dry_run, not ignore_bad_tags, cc_file,
-                    in_reply_to=in_reply_to, thread=None)
+            cmd = gitutil.EmailPatches(
+                series, cover_fname, args, dry_run, not ignore_bad_tags,
+                cc_file, in_reply_to=in_reply_to, thread=None)
             series.ShowActions(args, cmd, process_tags)
         cc_lines = open(cc_file, encoding='utf-8').read().splitlines()
         os.remove(cc_file)
 
-        lines = out[0].splitlines()
-        self.assertEqual('Cleaned %s patches' % len(series.commits), lines[0])
-        self.assertEqual('Change log missing for v2', lines[1])
-        self.assertEqual('Change log missing for v3', lines[2])
-        self.assertEqual('Change log for unknown version v4', lines[3])
-        self.assertEqual("Alias 'pci' not found", lines[4])
-        self.assertIn('Dry run', lines[5])
-        self.assertIn('Send a total of %d patches' % count, lines[7])
-        line = 8
+        lines = iter(out[0].getvalue().splitlines())
+        self.assertEqual('Cleaned %s patches' % len(series.commits),
+                         next(lines))
+        self.assertEqual('Change log missing for v2', next(lines))
+        self.assertEqual('Change log missing for v3', next(lines))
+        self.assertEqual('Change log for unknown version v4', next(lines))
+        self.assertEqual("Alias 'pci' not found", next(lines))
+        self.assertIn('Dry run', next(lines))
+        self.assertEqual('', next(lines))
+        self.assertIn('Send a total of %d patches' % count, next(lines))
+        prev = next(lines)
         for i, commit in enumerate(series.commits):
-            self.assertEqual('   %s' % args[i], lines[line + 0])
-            line += 1
-            while 'Cc:' in lines[line]:
-                line += 1
-        self.assertEqual('To:    u-boot@lists.denx.de', lines[line])
-        self.assertEqual('Cc:    %s' % tools.FromUnicode(stefan),
-                         lines[line + 1])
-        self.assertEqual('Version:  3', lines[line + 2])
-        self.assertEqual('Prefix:\t  RFC', lines[line + 3])
-        self.assertEqual('Cover: 4 lines', lines[line + 4])
-        line += 5
-        self.assertEqual('      Cc:  %s' % fred, lines[line + 0])
-        self.assertEqual('      Cc:  %s' % tools.FromUnicode(ed),
-                         lines[line + 1])
-        self.assertEqual('      Cc:  %s' % tools.FromUnicode(mel),
-                         lines[line + 2])
-        self.assertEqual('      Cc:  %s' % rick, lines[line + 3])
+            self.assertEqual('   %s' % args[i], prev)
+            while True:
+                prev = next(lines)
+                if 'Cc:' not in prev:
+                    break
+        self.assertEqual('To:    u-boot@lists.denx.de', prev)
+        self.assertEqual('Cc:    %s' % tools.FromUnicode(stefan), next(lines))
+        self.assertEqual('Version:  3', next(lines))
+        self.assertEqual('Prefix:\t  RFC', next(lines))
+        self.assertEqual('Cover: 4 lines', next(lines))
+        self.assertEqual('      Cc:  %s' % self.fred, next(lines))
+        self.assertEqual('      Cc:  %s' % tools.FromUnicode(self.leb),
+                         next(lines))
+        self.assertEqual('      Cc:  %s' % tools.FromUnicode(mel), next(lines))
+        self.assertEqual('      Cc:  %s' % rick, next(lines))
         expected = ('Git command: git send-email --annotate '
                     '--in-reply-to="%s" --to "u-boot@lists.denx.de" '
-                    '--cc "%s" --cc-cmd "%s --cc-cmd %s" %s %s'
+                    '--cc "%s" --cc-cmd "%s send --cc-cmd %s" %s %s'
                     % (in_reply_to, stefan, sys.argv[0], cc_file, cover_fname,
                        ' '.join(args)))
-        line += 4
-        self.assertEqual(expected, tools.ToUnicode(lines[line]))
+        self.assertEqual(expected, tools.ToUnicode(next(lines)))
 
         self.assertEqual(('%s %s\0%s' % (args[0], rick, stefan)),
                          tools.ToUnicode(cc_lines[0]))
-        self.assertEqual(('%s %s\0%s\0%s\0%s' % (args[1], fred, ed, rick,
-                                     stefan)), tools.ToUnicode(cc_lines[1]))
+        self.assertEqual(
+            '%s %s\0%s\0%s\0%s' % (args[1], self.fred, self.leb, rick, stefan),
+            tools.ToUnicode(cc_lines[1]))
 
         expected = '''
 This is a test of how the cover
-leter
+letter
 works
 
 some notes
@@ -213,7 +269,11 @@ about some things
 from the first commit
 
 Changes in v4:
+- Multi
+  line
+  change
 - Some changes
+- Some notes for the cover letter
 
 Simon Glass (2):
   pci: Correct cast for sandbox
@@ -231,8 +291,8 @@ Simon Glass (2):
 '''
         lines = open(cover_fname, encoding='utf-8').read().splitlines()
         self.assertEqual(
-                'Subject: [RFC PATCH v3 0/2] test: A test patch series',
-                lines[3])
+            'Subject: [RFC PATCH v3 0/2] test: A test patch series',
+            lines[3])
         self.assertEqual(expected.splitlines(), lines[7:])
 
         for i, fname in enumerate(args):
@@ -240,8 +300,1001 @@ Simon Glass (2):
             subject = [line for line in lines if line.startswith('Subject')]
             self.assertEqual('Subject: [RFC %d/%d]' % (i + 1, count),
                              subject[0][:18])
+
+            # Check that we got our commit notes
+            start = 0
+            expected = ''
+
             if i == 0:
-                # Check that we got our commit notes
-                self.assertEqual('---', lines[17])
-                self.assertEqual('Some notes about', lines[18])
-                self.assertEqual('the first commit', lines[19])
+                start = 17
+                expected = '''---
+Some notes about
+the first commit
+
+(no changes since v2)
+
+Changes in v2:
+- second revision change'''
+            elif i == 1:
+                start = 17
+                expected = '''---
+
+Changes in v4:
+- Multi
+  line
+  change
+- Some changes
+
+Changes in v2:
+- Changes only for this commit'''
+
+            if expected:
+                expected = expected.splitlines()
+                self.assertEqual(expected, lines[start:(start+len(expected))])
+
+    def make_commit_with_file(self, subject, body, fname, text):
+        """Create a file and add it to the git repo with a new commit
+
+        Args:
+            subject (str): Subject for the commit
+            body (str): Body text of the commit
+            fname (str): Filename of file to create
+            text (str): Text to put into the file
+        """
+        path = os.path.join(self.gitdir, fname)
+        tools.WriteFile(path, text, binary=False)
+        index = self.repo.index
+        index.add(fname)
+        author = pygit2.Signature('Test user', 'test@email.com')
+        committer = author
+        tree = index.write_tree()
+        message = subject + '\n' + body
+        self.repo.create_commit('HEAD', author, committer, message, tree,
+                                [self.repo.head.target])
+
+    def make_git_tree(self):
+        """Make a simple git tree suitable for testing
+
+        It has three branches:
+            'base' has two commits: PCI, main
+            'first' has base as upstream and two more commits: I2C, SPI
+            'second' has base as upstream and three more: video, serial, bootm
+
+        Returns:
+            pygit2.Repository: repository
+        """
+        repo = pygit2.init_repository(self.gitdir)
+        self.repo = repo
+        new_tree = repo.TreeBuilder().write()
+
+        author = pygit2.Signature('Test user', 'test@email.com')
+        committer = author
+        _ = repo.create_commit('HEAD', author, committer, 'Created master',
+                               new_tree, [])
+
+        self.make_commit_with_file('Initial commit', '''
+Add a README
+
+''', 'README', '''This is the README file
+describing this project
+in very little detail''')
+
+        self.make_commit_with_file('pci: PCI implementation', '''
+Here is a basic PCI implementation
+
+''', 'pci.c', '''This is a file
+it has some contents
+and some more things''')
+        self.make_commit_with_file('main: Main program', '''
+Hello here is the second commit.
+''', 'main.c', '''This is the main file
+there is very little here
+but we can always add more later
+if we want to
+
+Series-to: u-boot
+Series-cc: Barry Crump <bcrump@whataroa.nz>
+''')
+        base_target = repo.revparse_single('HEAD')
+        self.make_commit_with_file('i2c: I2C things', '''
+This has some stuff to do with I2C
+''', 'i2c.c', '''And this is the file contents
+with some I2C-related things in it''')
+        self.make_commit_with_file('spi: SPI fixes', '''
+SPI needs some fixes
+and here they are
+
+Signed-off-by: %s
+
+Series-to: u-boot
+Commit-notes:
+title of the series
+This is the cover letter for the series
+with various details
+END
+''' % self.leb, 'spi.c', '''Some fixes for SPI in this
+file to make SPI work
+better than before''')
+        first_target = repo.revparse_single('HEAD')
+
+        target = repo.revparse_single('HEAD~2')
+        repo.reset(target.oid, pygit2.GIT_CHECKOUT_FORCE)
+        self.make_commit_with_file('video: Some video improvements', '''
+Fix up the video so that
+it looks more purple. Purple is
+a very nice colour.
+''', 'video.c', '''More purple here
+Purple and purple
+Even more purple
+Could not be any more purple''')
+        self.make_commit_with_file('serial: Add a serial driver', '''
+Here is the serial driver
+for my chip.
+
+Cover-letter:
+Series for my board
+This series implements support
+for my glorious board.
+END
+Series-links: 183237
+''', 'serial.c', '''The code for the
+serial driver is here''')
+        self.make_commit_with_file('bootm: Make it boot', '''
+This makes my board boot
+with a fix to the bootm
+command
+''', 'bootm.c', '''Fix up the bootm
+command to make the code as
+complicated as possible''')
+        second_target = repo.revparse_single('HEAD')
+
+        repo.branches.local.create('first', first_target)
+        repo.config.set_multivar('branch.first.remote', '', '.')
+        repo.config.set_multivar('branch.first.merge', '', 'refs/heads/base')
+
+        repo.branches.local.create('second', second_target)
+        repo.config.set_multivar('branch.second.remote', '', '.')
+        repo.config.set_multivar('branch.second.merge', '', 'refs/heads/base')
+
+        repo.branches.local.create('base', base_target)
+        return repo
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testBranch(self):
+        """Test creating patches from a branch"""
+        repo = self.make_git_tree()
+        target = repo.lookup_reference('refs/heads/first')
+        self.repo.checkout(target, strategy=pygit2.GIT_CHECKOUT_FORCE)
+        control.setup()
+        try:
+            orig_dir = os.getcwd()
+            os.chdir(self.gitdir)
+
+            # Check that it can detect the current branch
+            self.assertEqual(2, gitutil.CountCommitsToBranch(None))
+            col = terminal.Color()
+            with capture_sys_output() as _:
+                _, cover_fname, patch_files = control.prepare_patches(
+                    col, branch=None, count=-1, start=0, end=0,
+                    ignore_binary=False)
+            self.assertIsNone(cover_fname)
+            self.assertEqual(2, len(patch_files))
+
+            # Check that it can detect a different branch
+            self.assertEqual(3, gitutil.CountCommitsToBranch('second'))
+            with capture_sys_output() as _:
+                _, cover_fname, patch_files = control.prepare_patches(
+                    col, branch='second', count=-1, start=0, end=0,
+                    ignore_binary=False)
+            self.assertIsNotNone(cover_fname)
+            self.assertEqual(3, len(patch_files))
+
+            # Check that it can skip patches at the end
+            with capture_sys_output() as _:
+                _, cover_fname, patch_files = control.prepare_patches(
+                    col, branch='second', count=-1, start=0, end=1,
+                    ignore_binary=False)
+            self.assertIsNotNone(cover_fname)
+            self.assertEqual(2, len(patch_files))
+        finally:
+            os.chdir(orig_dir)
+
+    def testTags(self):
+        """Test collection of tags in a patchstream"""
+        text = '''This is a patch
+
+Signed-off-by: Terminator
+Reviewed-by: %s
+Reviewed-by: %s
+Tested-by: %s
+''' % (self.joe, self.mary, self.leb)
+        pstrm = PatchStream.process_text(text)
+        self.assertEqual(pstrm.commit.rtags, {
+            'Reviewed-by': {self.joe, self.mary},
+            'Tested-by': {self.leb}})
+
+    def testMissingEnd(self):
+        """Test a missing END tag"""
+        text = '''This is a patch
+
+Cover-letter:
+This is the title
+missing END after this line
+Signed-off-by: Fred
+'''
+        pstrm = PatchStream.process_text(text)
+        self.assertEqual(["Missing 'END' in section 'cover'"],
+                         pstrm.commit.warn)
+
+    def testMissingBlankLine(self):
+        """Test a missing blank line after a tag"""
+        text = '''This is a patch
+
+Series-changes: 2
+- First line of changes
+- Missing blank line after this line
+Signed-off-by: Fred
+'''
+        pstrm = PatchStream.process_text(text)
+        self.assertEqual(["Missing 'blank line' in section 'Series-changes'"],
+                         pstrm.commit.warn)
+
+    def testInvalidCommitTag(self):
+        """Test an invalid Commit-xxx tag"""
+        text = '''This is a patch
+
+Commit-fred: testing
+'''
+        pstrm = PatchStream.process_text(text)
+        self.assertEqual(["Line 3: Ignoring Commit-fred"], pstrm.commit.warn)
+
+    def testSelfTest(self):
+        """Test a tested by tag by this user"""
+        test_line = 'Tested-by: %s@napier.com' % os.getenv('USER')
+        text = '''This is a patch
+
+%s
+''' % test_line
+        pstrm = PatchStream.process_text(text)
+        self.assertEqual(["Ignoring '%s'" % test_line], pstrm.commit.warn)
+
+    def testSpaceBeforeTab(self):
+        """Test a space before a tab"""
+        text = '''This is a patch
+
++ \tSomething
+'''
+        pstrm = PatchStream.process_text(text)
+        self.assertEqual(["Line 3/0 has space before tab"], pstrm.commit.warn)
+
+    def testLinesAfterTest(self):
+        """Test detecting lines after TEST= line"""
+        text = '''This is a patch
+
+TEST=sometest
+more lines
+here
+'''
+        pstrm = PatchStream.process_text(text)
+        self.assertEqual(["Found 2 lines after TEST="], pstrm.commit.warn)
+
+    def testBlankLineAtEnd(self):
+        """Test detecting a blank line at the end of a file"""
+        text = '''This is a patch
+
+diff --git a/lib/fdtdec.c b/lib/fdtdec.c
+index c072e54..942244f 100644
+--- a/lib/fdtdec.c
++++ b/lib/fdtdec.c
+@@ -1200,7 +1200,8 @@ int fdtdec_setup_mem_size_base(void)
+       }
+
+       gd->ram_size = (phys_size_t)(res.end - res.start + 1);
+-      debug("%s: Initial DRAM size %llx\n", __func__, (u64)gd->ram_size);
++      debug("%s: Initial DRAM size %llx\n", __func__,
++            (unsigned long long)gd->ram_size);
++
+diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
+
+--
+2.7.4
+
+ '''
+        pstrm = PatchStream.process_text(text)
+        self.assertEqual(
+            ["Found possible blank line(s) at end of file 'lib/fdtdec.c'"],
+            pstrm.commit.warn)
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testNoUpstream(self):
+        """Test CountCommitsToBranch when there is no upstream"""
+        repo = self.make_git_tree()
+        target = repo.lookup_reference('refs/heads/base')
+        self.repo.checkout(target, strategy=pygit2.GIT_CHECKOUT_FORCE)
+
+        # Check that it can detect the current branch
+        try:
+            orig_dir = os.getcwd()
+            os.chdir(self.gitdir)
+            with self.assertRaises(ValueError) as exc:
+                gitutil.CountCommitsToBranch(None)
+            self.assertIn(
+                "Failed to determine upstream: fatal: no upstream configured for branch 'base'",
+                str(exc.exception))
+        finally:
+            os.chdir(orig_dir)
+
+    @staticmethod
+    def _fake_patchwork(url, subpath):
+        """Fake Patchwork server for the function below
+
+        This handles accessing a series, providing a list consisting of a
+        single patch
+
+        Args:
+            url (str): URL of patchwork server
+            subpath (str): URL subpath to use
+        """
+        re_series = re.match(r'series/(\d*)/$', subpath)
+        if re_series:
+            series_num = re_series.group(1)
+            if series_num == '1234':
+                return {'patches': [
+                    {'id': '1', 'name': 'Some patch'}]}
+        raise ValueError('Fake Patchwork does not understand: %s' % subpath)
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testStatusMismatch(self):
+        """Test Patchwork patches not matching the series"""
+        series = Series()
+
+        with capture_sys_output() as (_, err):
+            status.collect_patches(series, 1234, None, self._fake_patchwork)
+        self.assertIn('Warning: Patchwork reports 1 patches, series has 0',
+                      err.getvalue())
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testStatusReadPatch(self):
+        """Test handling a single patch in Patchwork"""
+        series = Series()
+        series.commits = [Commit('abcd')]
+
+        patches = status.collect_patches(series, 1234, None,
+                                         self._fake_patchwork)
+        self.assertEqual(1, len(patches))
+        patch = patches[0]
+        self.assertEqual('1', patch.id)
+        self.assertEqual('Some patch', patch.raw_subject)
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testParseSubject(self):
+        """Test parsing of the patch subject"""
+        patch = status.Patch('1')
+
+        # Simple patch not in a series
+        patch.parse_subject('Testing')
+        self.assertEqual('Testing', patch.raw_subject)
+        self.assertEqual('Testing', patch.subject)
+        self.assertEqual(1, patch.seq)
+        self.assertEqual(1, patch.count)
+        self.assertEqual(None, patch.prefix)
+        self.assertEqual(None, patch.version)
+
+        # First patch in a series
+        patch.parse_subject('[1/2] Testing')
+        self.assertEqual('[1/2] Testing', patch.raw_subject)
+        self.assertEqual('Testing', patch.subject)
+        self.assertEqual(1, patch.seq)
+        self.assertEqual(2, patch.count)
+        self.assertEqual(None, patch.prefix)
+        self.assertEqual(None, patch.version)
+
+        # Second patch in a series
+        patch.parse_subject('[2/2] Testing')
+        self.assertEqual('Testing', patch.subject)
+        self.assertEqual(2, patch.seq)
+        self.assertEqual(2, patch.count)
+        self.assertEqual(None, patch.prefix)
+        self.assertEqual(None, patch.version)
+
+        # RFC patch
+        patch.parse_subject('[RFC,3/7] Testing')
+        self.assertEqual('Testing', patch.subject)
+        self.assertEqual(3, patch.seq)
+        self.assertEqual(7, patch.count)
+        self.assertEqual('RFC', patch.prefix)
+        self.assertEqual(None, patch.version)
+
+        # Version patch
+        patch.parse_subject('[v2,3/7] Testing')
+        self.assertEqual('Testing', patch.subject)
+        self.assertEqual(3, patch.seq)
+        self.assertEqual(7, patch.count)
+        self.assertEqual(None, patch.prefix)
+        self.assertEqual('v2', patch.version)
+
+        # All fields
+        patch.parse_subject('[RESEND,v2,3/7] Testing')
+        self.assertEqual('Testing', patch.subject)
+        self.assertEqual(3, patch.seq)
+        self.assertEqual(7, patch.count)
+        self.assertEqual('RESEND', patch.prefix)
+        self.assertEqual('v2', patch.version)
+
+        # RFC only
+        patch.parse_subject('[RESEND] Testing')
+        self.assertEqual('Testing', patch.subject)
+        self.assertEqual(1, patch.seq)
+        self.assertEqual(1, patch.count)
+        self.assertEqual('RESEND', patch.prefix)
+        self.assertEqual(None, patch.version)
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testCompareSeries(self):
+        """Test operation of compare_with_series()"""
+        commit1 = Commit('abcd')
+        commit1.subject = 'Subject 1'
+        commit2 = Commit('ef12')
+        commit2.subject = 'Subject 2'
+        commit3 = Commit('3456')
+        commit3.subject = 'Subject 2'
+
+        patch1 = status.Patch('1')
+        patch1.subject = 'Subject 1'
+        patch2 = status.Patch('2')
+        patch2.subject = 'Subject 2'
+        patch3 = status.Patch('3')
+        patch3.subject = 'Subject 2'
+
+        series = Series()
+        series.commits = [commit1]
+        patches = [patch1]
+        patch_for_commit, commit_for_patch, warnings = (
+            status.compare_with_series(series, patches))
+        self.assertEqual(1, len(patch_for_commit))
+        self.assertEqual(patch1, patch_for_commit[0])
+        self.assertEqual(1, len(commit_for_patch))
+        self.assertEqual(commit1, commit_for_patch[0])
+
+        series.commits = [commit1]
+        patches = [patch1, patch2]
+        patch_for_commit, commit_for_patch, warnings = (
+            status.compare_with_series(series, patches))
+        self.assertEqual(1, len(patch_for_commit))
+        self.assertEqual(patch1, patch_for_commit[0])
+        self.assertEqual(1, len(commit_for_patch))
+        self.assertEqual(commit1, commit_for_patch[0])
+        self.assertEqual(["Cannot find commit for patch 2 ('Subject 2')"],
+                         warnings)
+
+        series.commits = [commit1, commit2]
+        patches = [patch1]
+        patch_for_commit, commit_for_patch, warnings = (
+            status.compare_with_series(series, patches))
+        self.assertEqual(1, len(patch_for_commit))
+        self.assertEqual(patch1, patch_for_commit[0])
+        self.assertEqual(1, len(commit_for_patch))
+        self.assertEqual(commit1, commit_for_patch[0])
+        self.assertEqual(["Cannot find patch for commit 2 ('Subject 2')"],
+                         warnings)
+
+        series.commits = [commit1, commit2, commit3]
+        patches = [patch1, patch2]
+        patch_for_commit, commit_for_patch, warnings = (
+            status.compare_with_series(series, patches))
+        self.assertEqual(2, len(patch_for_commit))
+        self.assertEqual(patch1, patch_for_commit[0])
+        self.assertEqual(patch2, patch_for_commit[1])
+        self.assertEqual(1, len(commit_for_patch))
+        self.assertEqual(commit1, commit_for_patch[0])
+        self.assertEqual(["Cannot find patch for commit 3 ('Subject 2')",
+                          "Multiple commits match patch 2 ('Subject 2'):\n"
+                          '   Subject 2\n   Subject 2'],
+                         warnings)
+
+        series.commits = [commit1, commit2]
+        patches = [patch1, patch2, patch3]
+        patch_for_commit, commit_for_patch, warnings = (
+            status.compare_with_series(series, patches))
+        self.assertEqual(1, len(patch_for_commit))
+        self.assertEqual(patch1, patch_for_commit[0])
+        self.assertEqual(2, len(commit_for_patch))
+        self.assertEqual(commit1, commit_for_patch[0])
+        self.assertEqual(["Multiple patches match commit 2 ('Subject 2'):\n"
+                          '   Subject 2\n   Subject 2',
+                          "Cannot find commit for patch 3 ('Subject 2')"],
+                         warnings)
+
+    def _fake_patchwork2(self, url, subpath):
+        """Fake Patchwork server for the function below
+
+        This handles accessing series, patches and comments, providing the data
+        in self.patches to the caller
+
+        Args:
+            url (str): URL of patchwork server
+            subpath (str): URL subpath to use
+        """
+        re_series = re.match(r'series/(\d*)/$', subpath)
+        re_patch = re.match(r'patches/(\d*)/$', subpath)
+        re_comments = re.match(r'patches/(\d*)/comments/$', subpath)
+        if re_series:
+            series_num = re_series.group(1)
+            if series_num == '1234':
+                return {'patches': self.patches}
+        elif re_patch:
+            patch_num = int(re_patch.group(1))
+            patch = self.patches[patch_num - 1]
+            return patch
+        elif re_comments:
+            patch_num = int(re_comments.group(1))
+            patch = self.patches[patch_num - 1]
+            return patch.comments
+        raise ValueError('Fake Patchwork does not understand: %s' % subpath)
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testFindNewResponses(self):
+        """Test operation of find_new_responses()"""
+        commit1 = Commit('abcd')
+        commit1.subject = 'Subject 1'
+        commit2 = Commit('ef12')
+        commit2.subject = 'Subject 2'
+
+        patch1 = status.Patch('1')
+        patch1.parse_subject('[1/2] Subject 1')
+        patch1.name = patch1.raw_subject
+        patch1.content = 'This is my patch content'
+        comment1a = {'content': 'Reviewed-by: %s\n' % self.joe}
+
+        patch1.comments = [comment1a]
+
+        patch2 = status.Patch('2')
+        patch2.parse_subject('[2/2] Subject 2')
+        patch2.name = patch2.raw_subject
+        patch2.content = 'Some other patch content'
+        comment2a = {
+            'content': 'Reviewed-by: %s\nTested-by: %s\n' %
+                       (self.mary, self.leb)}
+        comment2b = {'content': 'Reviewed-by: %s' % self.fred}
+        patch2.comments = [comment2a, comment2b]
+
+        # This test works by setting up commits and patch for use by the fake
+        # Rest API function _fake_patchwork2(). It calls various functions in
+        # the status module after setting up tags in the commits, checking that
+        # things behaves as expected
+        self.commits = [commit1, commit2]
+        self.patches = [patch1, patch2]
+        count = 2
+        new_rtag_list = [None] * count
+        review_list = [None, None]
+
+        # Check that the tags are picked up on the first patch
+        status.find_new_responses(new_rtag_list, review_list, 0, commit1,
+                                  patch1, None, self._fake_patchwork2)
+        self.assertEqual(new_rtag_list[0], {'Reviewed-by': {self.joe}})
+
+        # Now the second patch
+        status.find_new_responses(new_rtag_list, review_list, 1, commit2,
+                                  patch2, None, self._fake_patchwork2)
+        self.assertEqual(new_rtag_list[1], {
+            'Reviewed-by': {self.mary, self.fred},
+            'Tested-by': {self.leb}})
+
+        # Now add some tags to the commit, which means they should not appear as
+        # 'new' tags when scanning comments
+        new_rtag_list = [None] * count
+        commit1.rtags = {'Reviewed-by': {self.joe}}
+        status.find_new_responses(new_rtag_list, review_list, 0, commit1,
+                                  patch1, None, self._fake_patchwork2)
+        self.assertEqual(new_rtag_list[0], {})
+
+        # For the second commit, add Ed and Fred, so only Mary should be left
+        commit2.rtags = {
+            'Tested-by': {self.leb},
+            'Reviewed-by': {self.fred}}
+        status.find_new_responses(new_rtag_list, review_list, 1, commit2,
+                                  patch2, None, self._fake_patchwork2)
+        self.assertEqual(new_rtag_list[1], {'Reviewed-by': {self.mary}})
+
+        # Check that the output patches expectations:
+        #   1 Subject 1
+        #     Reviewed-by: Joe Bloggs <joe@napierwallies.co.nz>
+        #   2 Subject 2
+        #     Tested-by: Lord Edmund Blackaddër <weasel@blackadder.org>
+        #     Reviewed-by: Fred Bloggs <f.bloggs@napier.net>
+        #   + Reviewed-by: Mary Bloggs <mary@napierwallies.co.nz>
+        # 1 new response available in patchwork
+
+        series = Series()
+        series.commits = [commit1, commit2]
+        terminal.SetPrintTestMode()
+        status.check_patchwork_status(series, '1234', None, None, False, False,
+                                      None, self._fake_patchwork2)
+        lines = iter(terminal.GetPrintTestLines())
+        col = terminal.Color()
+        self.assertEqual(terminal.PrintLine('  1 Subject 1', col.BLUE),
+                         next(lines))
+        self.assertEqual(
+            terminal.PrintLine('    Reviewed-by: ', col.GREEN, newline=False,
+                               bright=False),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(self.joe, col.WHITE, bright=False),
+                         next(lines))
+
+        self.assertEqual(terminal.PrintLine('  2 Subject 2', col.BLUE),
+                         next(lines))
+        self.assertEqual(
+            terminal.PrintLine('    Reviewed-by: ', col.GREEN, newline=False,
+                               bright=False),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(self.fred, col.WHITE, bright=False),
+                         next(lines))
+        self.assertEqual(
+            terminal.PrintLine('    Tested-by: ', col.GREEN, newline=False,
+                               bright=False),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(self.leb, col.WHITE, bright=False),
+                         next(lines))
+        self.assertEqual(
+            terminal.PrintLine('  + Reviewed-by: ', col.GREEN, newline=False),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(self.mary, col.WHITE),
+                         next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '1 new response available in patchwork (use -d to write them to a new branch)',
+            None), next(lines))
+
+    def _fake_patchwork3(self, url, subpath):
+        """Fake Patchwork server for the function below
+
+        This handles accessing series, patches and comments, providing the data
+        in self.patches to the caller
+
+        Args:
+            url (str): URL of patchwork server
+            subpath (str): URL subpath to use
+        """
+        re_series = re.match(r'series/(\d*)/$', subpath)
+        re_patch = re.match(r'patches/(\d*)/$', subpath)
+        re_comments = re.match(r'patches/(\d*)/comments/$', subpath)
+        if re_series:
+            series_num = re_series.group(1)
+            if series_num == '1234':
+                return {'patches': self.patches}
+        elif re_patch:
+            patch_num = int(re_patch.group(1))
+            patch = self.patches[patch_num - 1]
+            return patch
+        elif re_comments:
+            patch_num = int(re_comments.group(1))
+            patch = self.patches[patch_num - 1]
+            return patch.comments
+        raise ValueError('Fake Patchwork does not understand: %s' % subpath)
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testCreateBranch(self):
+        """Test operation of create_branch()"""
+        repo = self.make_git_tree()
+        branch = 'first'
+        dest_branch = 'first2'
+        count = 2
+        gitdir = os.path.join(self.gitdir, '.git')
+
+        # Set up the test git tree. We use branch 'first' which has two commits
+        # in it
+        series = patchstream.get_metadata_for_list(branch, gitdir, count)
+        self.assertEqual(2, len(series.commits))
+
+        patch1 = status.Patch('1')
+        patch1.parse_subject('[1/2] %s' % series.commits[0].subject)
+        patch1.name = patch1.raw_subject
+        patch1.content = 'This is my patch content'
+        comment1a = {'content': 'Reviewed-by: %s\n' % self.joe}
+
+        patch1.comments = [comment1a]
+
+        patch2 = status.Patch('2')
+        patch2.parse_subject('[2/2] %s' % series.commits[1].subject)
+        patch2.name = patch2.raw_subject
+        patch2.content = 'Some other patch content'
+        comment2a = {
+            'content': 'Reviewed-by: %s\nTested-by: %s\n' %
+                       (self.mary, self.leb)}
+        comment2b = {
+            'content': 'Reviewed-by: %s' % self.fred}
+        patch2.comments = [comment2a, comment2b]
+
+        # This test works by setting up patches for use by the fake Rest API
+        # function _fake_patchwork3(). The fake patch comments above should
+        # result in new review tags that are collected and added to the commits
+        # created in the destination branch.
+        self.patches = [patch1, patch2]
+        count = 2
+
+        # Expected output:
+        #   1 i2c: I2C things
+        #   + Reviewed-by: Joe Bloggs <joe@napierwallies.co.nz>
+        #   2 spi: SPI fixes
+        #   + Reviewed-by: Fred Bloggs <f.bloggs@napier.net>
+        #   + Reviewed-by: Mary Bloggs <mary@napierwallies.co.nz>
+        #   + Tested-by: Lord Edmund Blackaddër <weasel@blackadder.org>
+        # 4 new responses available in patchwork
+        # 4 responses added from patchwork into new branch 'first2'
+        # <unittest.result.TestResult run=8 errors=0 failures=0>
+
+        terminal.SetPrintTestMode()
+        status.check_patchwork_status(series, '1234', branch, dest_branch,
+                                      False, False, None, self._fake_patchwork3,
+                                      repo)
+        lines = terminal.GetPrintTestLines()
+        self.assertEqual(12, len(lines))
+        self.assertEqual(
+            "4 responses added from patchwork into new branch 'first2'",
+            lines[11].text)
+
+        # Check that the destination branch has the new tags
+        new_series = patchstream.get_metadata_for_list(dest_branch, gitdir,
+                                                       count)
+        self.assertEqual(
+            {'Reviewed-by': {self.joe}},
+            new_series.commits[0].rtags)
+        self.assertEqual(
+            {'Tested-by': {self.leb},
+             'Reviewed-by': {self.fred, self.mary}},
+            new_series.commits[1].rtags)
+
+        # Now check the actual test of the first commit message. We expect to
+        # see the new tags immediately below the old ones.
+        stdout = patchstream.get_list(dest_branch, count=count, git_dir=gitdir)
+        lines = iter([line.strip() for line in stdout.splitlines()
+                      if '-by:' in line])
+
+        # First patch should have the review tag
+        self.assertEqual('Reviewed-by: %s' % self.joe, next(lines))
+
+        # Second patch should have the sign-off then the tested-by and two
+        # reviewed-by tags
+        self.assertEqual('Signed-off-by: %s' % self.leb, next(lines))
+        self.assertEqual('Reviewed-by: %s' % self.fred, next(lines))
+        self.assertEqual('Reviewed-by: %s' % self.mary, next(lines))
+        self.assertEqual('Tested-by: %s' % self.leb, next(lines))
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testParseSnippets(self):
+        """Test parsing of review snippets"""
+        text = '''Hi Fred,
+
+This is a comment from someone.
+
+Something else
+
+On some recent date, Fred wrote:
+> This is why I wrote the patch
+> so here it is
+
+Now a comment about the commit message
+A little more to say
+
+Even more
+
+> diff --git a/file.c b/file.c
+> Some more code
+> Code line 2
+> Code line 3
+> Code line 4
+> Code line 5
+> Code line 6
+> Code line 7
+> Code line 8
+> Code line 9
+
+And another comment
+
+> @@ -153,8 +143,13 @@ def CheckPatch(fname, show_types=False):
+>  further down on the file
+>  and more code
+> +Addition here
+> +Another addition here
+>  codey
+>  more codey
+
+and another thing in same file
+
+> @@ -253,8 +243,13 @@
+>  with no function context
+
+one more thing
+
+> diff --git a/tools/patman/main.py b/tools/patman/main.py
+> +line of code
+now a very long comment in a different file
+line2
+line3
+line4
+line5
+line6
+line7
+line8
+'''
+        pstrm = PatchStream.process_text(text, True)
+        self.assertEqual([], pstrm.commit.warn)
+
+        # We expect to the filename and up to 5 lines of code context before
+        # each comment. The 'On xxx wrote:' bit should be removed.
+        self.assertEqual(
+            [['Hi Fred,',
+              'This is a comment from someone.',
+              'Something else'],
+             ['> This is why I wrote the patch',
+              '> so here it is',
+              'Now a comment about the commit message',
+              'A little more to say', 'Even more'],
+             ['> File: file.c', '> Code line 5', '> Code line 6',
+              '> Code line 7', '> Code line 8', '> Code line 9',
+              'And another comment'],
+             ['> File: file.c',
+              '> Line: 153 / 143: def CheckPatch(fname, show_types=False):',
+              '>  and more code', '> +Addition here', '> +Another addition here',
+              '>  codey', '>  more codey', 'and another thing in same file'],
+             ['> File: file.c', '> Line: 253 / 243',
+              '>  with no function context', 'one more thing'],
+             ['> File: tools/patman/main.py', '> +line of code',
+              'now a very long comment in a different file',
+              'line2', 'line3', 'line4', 'line5', 'line6', 'line7', 'line8']],
+            pstrm.snippets)
+
+    @unittest.skipIf(not HAVE_PYGIT2, 'Missing python3-pygit2')
+    def testReviewSnippets(self):
+        """Test showing of review snippets"""
+        def _to_submitter(who):
+            m_who = re.match('(.*) <(.*)>', who)
+            return {
+                'name': m_who.group(1),
+                'email': m_who.group(2)
+                }
+
+        commit1 = Commit('abcd')
+        commit1.subject = 'Subject 1'
+        commit2 = Commit('ef12')
+        commit2.subject = 'Subject 2'
+
+        patch1 = status.Patch('1')
+        patch1.parse_subject('[1/2] Subject 1')
+        patch1.name = patch1.raw_subject
+        patch1.content = 'This is my patch content'
+        comment1a = {'submitter': _to_submitter(self.joe),
+                     'content': '''Hi Fred,
+
+On some date Fred wrote:
+
+> diff --git a/file.c b/file.c
+> Some code
+> and more code
+
+Here is my comment above the above...
+
+
+Reviewed-by: %s
+''' % self.joe}
+
+        patch1.comments = [comment1a]
+
+        patch2 = status.Patch('2')
+        patch2.parse_subject('[2/2] Subject 2')
+        patch2.name = patch2.raw_subject
+        patch2.content = 'Some other patch content'
+        comment2a = {
+            'content': 'Reviewed-by: %s\nTested-by: %s\n' %
+                       (self.mary, self.leb)}
+        comment2b = {'submitter': _to_submitter(self.fred),
+                     'content': '''Hi Fred,
+
+On some date Fred wrote:
+
+> diff --git a/tools/patman/commit.py b/tools/patman/commit.py
+> @@ -41,6 +41,9 @@ class Commit:
+>          self.rtags = collections.defaultdict(set)
+>          self.warn = []
+>
+> +    def __str__(self):
+> +        return self.subject
+> +
+>      def AddChange(self, version, info):
+>          """Add a new change line to the change list for a version.
+>
+A comment
+
+Reviewed-by: %s
+''' % self.fred}
+        patch2.comments = [comment2a, comment2b]
+
+        # This test works by setting up commits and patch for use by the fake
+        # Rest API function _fake_patchwork2(). It calls various functions in
+        # the status module after setting up tags in the commits, checking that
+        # things behaves as expected
+        self.commits = [commit1, commit2]
+        self.patches = [patch1, patch2]
+
+        # Check that the output patches expectations:
+        #   1 Subject 1
+        #     Reviewed-by: Joe Bloggs <joe@napierwallies.co.nz>
+        #   2 Subject 2
+        #     Tested-by: Lord Edmund Blackaddër <weasel@blackadder.org>
+        #     Reviewed-by: Fred Bloggs <f.bloggs@napier.net>
+        #   + Reviewed-by: Mary Bloggs <mary@napierwallies.co.nz>
+        # 1 new response available in patchwork
+
+        series = Series()
+        series.commits = [commit1, commit2]
+        terminal.SetPrintTestMode()
+        status.check_patchwork_status(series, '1234', None, None, False, True,
+                                      None, self._fake_patchwork2)
+        lines = iter(terminal.GetPrintTestLines())
+        col = terminal.Color()
+        self.assertEqual(terminal.PrintLine('  1 Subject 1', col.BLUE),
+                         next(lines))
+        self.assertEqual(
+            terminal.PrintLine('  + Reviewed-by: ', col.GREEN, newline=False),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(self.joe, col.WHITE), next(lines))
+
+        self.assertEqual(terminal.PrintLine('Review: %s' % self.joe, col.RED),
+                         next(lines))
+        self.assertEqual(terminal.PrintLine('    Hi Fred,', None), next(lines))
+        self.assertEqual(terminal.PrintLine('', None), next(lines))
+        self.assertEqual(terminal.PrintLine('    > File: file.c', col.MAGENTA),
+                         next(lines))
+        self.assertEqual(terminal.PrintLine('    > Some code', col.MAGENTA),
+                         next(lines))
+        self.assertEqual(terminal.PrintLine('    > and more code', col.MAGENTA),
+                         next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '    Here is my comment above the above...', None), next(lines))
+        self.assertEqual(terminal.PrintLine('', None), next(lines))
+
+        self.assertEqual(terminal.PrintLine('  2 Subject 2', col.BLUE),
+                         next(lines))
+        self.assertEqual(
+            terminal.PrintLine('  + Reviewed-by: ', col.GREEN, newline=False),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(self.fred, col.WHITE),
+                         next(lines))
+        self.assertEqual(
+            terminal.PrintLine('  + Reviewed-by: ', col.GREEN, newline=False),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(self.mary, col.WHITE),
+                         next(lines))
+        self.assertEqual(
+            terminal.PrintLine('  + Tested-by: ', col.GREEN, newline=False),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(self.leb, col.WHITE),
+                         next(lines))
+
+        self.assertEqual(terminal.PrintLine('Review: %s' % self.fred, col.RED),
+                         next(lines))
+        self.assertEqual(terminal.PrintLine('    Hi Fred,', None), next(lines))
+        self.assertEqual(terminal.PrintLine('', None), next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '    > File: tools/patman/commit.py', col.MAGENTA), next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '    > Line: 41 / 41: class Commit:', col.MAGENTA), next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '    > +        return self.subject', col.MAGENTA), next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '    > +', col.MAGENTA), next(lines))
+        self.assertEqual(
+            terminal.PrintLine('    >      def AddChange(self, version, info):',
+                               col.MAGENTA),
+            next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '    >          """Add a new change line to the change list for a version.',
+            col.MAGENTA), next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '    >', col.MAGENTA), next(lines))
+        self.assertEqual(terminal.PrintLine(
+            '    A comment', None), next(lines))
+        self.assertEqual(terminal.PrintLine('', None), next(lines))
+
+        self.assertEqual(terminal.PrintLine(
+            '4 new responses available in patchwork (use -d to write them to a new branch)',
+            None), next(lines))