patman: Add a functional test

The existing test (patman --test) only covers basic checkpatch output.
We have had some problems with unicode processing and could use test
coverage for the various tags patman supports.

Add a new functional test which runs most of the patman flow on a few
test commits and checks that the results are correct.

See the documentation in the test for a description of what it does.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

7 files changed, 459 insertions, 2 deletions

diff --git a/tools/patman/func_test.py b/tools/patman/func_test.py
new file mode 100644
index 0000000000..2c0da84b30
--- /dev/null
+++ b/tools/patman/func_test.py
@@ -0,0 +1,242 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright 2017 Google, Inc
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+import contextlib
+import os
+import re
+import shutil
+import sys
+import tempfile
+import unittest
+
+import gitutil
+import patchstream
+import settings
+
+
+@contextlib.contextmanager
+def capture():
+    import sys
+    from cStringIO import StringIO
+    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()
+
+
+class TestFunctional(unittest.TestCase):
+    def setUp(self):
+        self.tmpdir = tempfile.mkdtemp(prefix='patman.')
+
+    def tearDown(self):
+        shutil.rmtree(self.tmpdir)
+
+    @staticmethod
+    def GetPath(fname):
+        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)).read()
+
+    @classmethod
+    def GetPatchName(self, subject):
+        fname = re.sub('[ :]', '-', subject)
+        return fname.replace('--', '-')
+
+    def CreatePatchesForTest(self, series):
+        cover_fname = None
+        fname_list = []
+        for i, commit in enumerate(series.commits):
+            clean_subject = self.GetPatchName(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)
+            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)
+
+        return cover_fname, fname_list
+
+    def testBasic(self):
+        """Tests the basic flow of patman
+
+        This creates a series from some hard-coded patches build from a simple
+        tree with the following metadata in the top commit:
+
+            Series-to: u-boot
+            Series-prefix: RFC
+            Series-cc: Stefan Brüns <stefan.bruens@rwth-aachen.de>
+            Cover-letter-cc: Lord Mëlchett <clergy@palace.gov>
+            Series-version: 2
+            Series-changes: 4
+            - Some changes
+
+            Cover-letter:
+            test: A test patch series
+            This is a test of how the cover
+            leter
+            works
+            END
+
+        and this in the first commit:
+
+            Series-notes:
+            some notes
+            about some things
+            from the first commit
+            END
+
+            Commit-notes:
+            Some notes about
+            the first commit
+            END
+
+        with the following commands:
+
+           git log -n2 --reverse >/path/to/tools/patman/test/test01.txt
+           git format-patch --subject-prefix RFC --cover-letter HEAD~2
+           mv 00* /path/to/tools/patman/test
+
+        It checks these aspects:
+            - git log can be processed by patchstream
+            - emailing patches uses the correct command
+            - CC file has information on each commit
+            - cover letter has the expected text and subject
+            - each patch has the correct subject
+            - dry-run information prints out correctly
+            - unicode is handled correctly
+            - Series-to, Series-cc, Series-prefix, Cover-letter
+            - Cover-letter-cc, Series-version, Series-changes, Series-notes
+            - Commit-notes
+        """
+        process_tags = True
+        ignore_bad_tags = True
+        stefan = u'Stefan Brüns <stefan.bruens@rwth-aachen.de>'
+        rick = 'Richard III <richard@palace.gov>'
+        mel = u'Lord Mëlchett <clergy@palace.gov>'
+        ed = u'Lond Edmund Blackaddër <weasel@blackadder.org'
+        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],
+        }
+
+        text = self.GetText('test01.txt')
+        series = patchstream.GetMetaDataForTest(text)
+        cover_fname, args = self.CreatePatchesForTest(series)
+        with capture() as out:
+            patchstream.FixPatches(series, args)
+            if cover_fname and series.get('cover'):
+                patchstream.InsertCoverLetter(cover_fname, series, count)
+            series.DoChecks()
+            cc_file = series.MakeCcFile(process_tags, cover_fname,
+                                        not ignore_bad_tags, add_maintainers)
+            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).read().splitlines()
+        os.remove(cc_file)
+
+        lines = out[0].splitlines()
+        #print '\n'.join(lines)
+        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
+        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' % stefan.encode('utf-8'), 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' % mel.encode('utf-8'), lines[line + 0])
+        self.assertEqual('      Cc:  %s' % rick, lines[line + 1])
+        self.assertEqual('      Cc:  %s' % fred, lines[line + 2])
+        self.assertEqual('      Cc:  %s' % ed.encode('utf-8'), lines[line + 3])
+        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'
+                    % (in_reply_to, stefan, sys.argv[0], cc_file, cover_fname,
+                       ' '.join(args))).encode('utf-8')
+        line += 4
+        self.assertEqual(expected, lines[line])
+
+        self.assertEqual(('%s %s, %s' % (args[0], rick, stefan))
+                         .encode('utf-8'), cc_lines[0])
+        self.assertEqual(('%s %s, %s, %s, %s' % (args[1], fred, rick, stefan,
+                                            ed)).encode('utf-8'), cc_lines[1])
+
+        expected = '''
+This is a test of how the cover
+leter
+works
+
+some notes
+about some things
+from the first commit
+
+Changes in v4:
+- Some changes
+
+Simon Glass (2):
+  pci: Correct cast for sandbox
+  fdt: Correct cast for sandbox in fdtdec_setup_memory_size()
+
+ cmd/pci.c                   | 3 ++-
+ fs/fat/fat.c                | 1 +
+ lib/efi_loader/efi_memory.c | 1 +
+ lib/fdtdec.c                | 3 ++-
+ 4 files changed, 6 insertions(+), 2 deletions(-)
+
+--\x20
+2.7.4
+
+'''
+        lines = open(cover_fname).read().splitlines()
+        #print '\n'.join(lines)
+        self.assertEqual(
+                '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):
+            lines = open(fname).read().splitlines()
+            #print '\n'.join(lines)
+            subject = [line for line in lines if line.startswith('Subject')]
+            self.assertEqual('Subject: [RFC %d/%d]' % (i + 1, count),
+                             subject[0][:18])
+            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])
diff --git a/tools/patman/patchstream.py b/tools/patman/patchstream.py
index 6098728aa1..1b9136aa5c 100644
--- a/tools/patman/patchstream.py
+++ b/tools/patman/patchstream.py
@@ -424,6 +424,19 @@ def GetMetaData(start, count):
     """
     return GetMetaDataForList('HEAD~%d' % start, None, count)
 
+def GetMetaDataForTest(text):
+    """Process metadata from a file containing a git log. Used for tests
+
+    Args:
+        text:
+    """
+    series = Series()
+    ps = PatchStream(series, is_log=True)
+    for line in text.splitlines():
+        ps.ProcessLine(line)
+    ps.Finalize()
+    return series
+
 def FixPatch(backup_dir, fname, series, commit):
     """Fix up a patch file, by adding/removing as required.
 
diff --git a/tools/patman/patman.py b/tools/patman/patman.py
index 63da3f3200..4b3bc78745 100755
--- a/tools/patman/patman.py
+++ b/tools/patman/patman.py
@@ -82,11 +82,13 @@ if __name__ != "__main__":
 # Run our meagre tests
 elif options.test:
     import doctest
+    import func_test
 
     sys.argv = [sys.argv[0]]
-    suite = unittest.TestLoader().loadTestsFromTestCase(test.TestPatch)
     result = unittest.TestResult()
-    suite.run(result)
+    for module in (test.TestPatch, func_test.TestFunctional):
+        suite = unittest.TestLoader().loadTestsFromTestCase(module)
+        suite.run(result)
 
     for module in ['gitutil', 'settings']:
         suite = doctest.DocTestSuite(module)
diff --git a/tools/patman/test/0000-cover-letter.patch b/tools/patman/test/0000-cover-letter.patch
new file mode 100644
index 0000000000..29062015bc
--- /dev/null
+++ b/tools/patman/test/0000-cover-letter.patch
@@ -0,0 +1,23 @@
+From 5ab48490f03051875ab13d288a4bf32b507d76fd Mon Sep 17 00:00:00 2001
+From: Simon Glass <sjg@chromium.org>
+Date: Sat, 27 May 2017 20:52:11 -0600
+Subject: [RFC 0/2] *** SUBJECT HERE ***
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+*** BLURB HERE ***
+
+Simon Glass (2):
+  pci: Correct cast for sandbox
+  fdt: Correct cast for sandbox in fdtdec_setup_memory_size()
+
+ cmd/pci.c                   | 3 ++-
+ fs/fat/fat.c                | 1 +
+ lib/efi_loader/efi_memory.c | 1 +
+ lib/fdtdec.c                | 3 ++-
+ 4 files changed, 6 insertions(+), 2 deletions(-)
+
+-- 
+2.7.4
+
diff --git a/tools/patman/test/0001-pci-Correct-cast-for-sandbox.patch b/tools/patman/test/0001-pci-Correct-cast-for-sandbox.patch
new file mode 100644
index 0000000000..7191176f75
--- /dev/null
+++ b/tools/patman/test/0001-pci-Correct-cast-for-sandbox.patch
@@ -0,0 +1,48 @@
+From b9da5f937bd5ea4931ea17459bf79b2905d9594d Mon Sep 17 00:00:00 2001
+From: Simon Glass <sjg@chromium.org>
+Date: Sat, 15 Apr 2017 15:39:08 -0600
+Subject: [RFC 1/2] pci: Correct cast for sandbox
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This gives a warning with some native compilers:
+
+cmd/pci.c:152:11: warning: format ‘%llx’ expects argument of type
+   ‘long long unsigned int’, but argument 3 has type
+   ‘u64 {aka long unsigned int}’ [-Wformat=]
+
+Fix it with a cast.
+
+Signed-off-by: Simon Glass <sjg@chromium.org>
+Series-notes:
+some notes
+about some things
+from the first commit
+END
+
+Commit-notes:
+Some notes about
+the first commit
+END
+---
+ cmd/pci.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/cmd/pci.c b/cmd/pci.c
+index 41b4fff..fe27b4f 100644
+--- a/cmd/pci.c
++++ b/cmd/pci.c
+@@ -150,7 +150,8 @@ int pci_bar_show(struct udevice *dev)
+ 		if ((!is_64 && size_low) || (is_64 && size)) {
+ 			size = ~size + 1;
+ 			printf(" %d   %#016llx  %#016llx  %d     %s   %s\n",
+-			       bar_id, base, size, is_64 ? 64 : 32,
++			       bar_id, (unsigned long long)base,
++			       (unsigned long long)size, is_64 ? 64 : 32,
+ 			       is_io ? "I/O" : "MEM",
+ 			       prefetchable ? "Prefetchable" : "");
+ 		}
+-- 
+2.7.4
+
diff --git a/tools/patman/test/0002-fdt-Correct-cast-for-sandbox-in-fdtdec_setup_memory_.patch b/tools/patman/test/0002-fdt-Correct-cast-for-sandbox-in-fdtdec_setup_memory_.patch
new file mode 100644
index 0000000000..e3284973a0
--- /dev/null
+++ b/tools/patman/test/0002-fdt-Correct-cast-for-sandbox-in-fdtdec_setup_memory_.patch
@@ -0,0 +1,73 @@
+From 5ab48490f03051875ab13d288a4bf32b507d76fd Mon Sep 17 00:00:00 2001
+From: Simon Glass <sjg@chromium.org>
+Date: Sat, 15 Apr 2017 15:39:08 -0600
+Subject: [RFC 2/2] fdt: Correct cast for sandbox in fdtdec_setup_memory_size()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This gives a warning with some native compilers:
+
+lib/fdtdec.c:1203:8: warning: format ‘%llx’ expects argument of type
+   ‘long long unsigned int’, but argument 3 has type
+   ‘long unsigned int’ [-Wformat=]
+
+Fix it with a cast.
+
+Signed-off-by: Simon Glass <sjg@chromium.org>
+Series-to: u-boot
+Series-prefix: RFC
+Series-cc: Stefan Brüns <stefan.bruens@rwth-aachen.de>
+Cover-letter-cc: Lord Mëlchett <clergy@palace.gov>
+Series-version: 3
+Patch-cc: fred
+Series-changes: 4
+- Some changes
+
+Cover-letter:
+test: A test patch series
+This is a test of how the cover
+leter
+works
+END
+---
+ fs/fat/fat.c                | 1 +
+ lib/efi_loader/efi_memory.c | 1 +
+ lib/fdtdec.c                | 3 ++-
+ 3 files changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/fs/fat/fat.c b/fs/fat/fat.c
+index a71bad1..ba169dc 100644
+--- a/fs/fat/fat.c
++++ b/fs/fat/fat.c
+@@ -1,3 +1,4 @@
++
+ /*
+  * fat.c
+  *
+diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
+index db2ae19..05f75d1 100644
+--- a/lib/efi_loader/efi_memory.c
++++ b/lib/efi_loader/efi_memory.c
+@@ -1,3 +1,4 @@
++
+ /*
+  *  EFI application memory management
+  *
+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_memory_size(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);
+ 
+ 	return 0;
+ }
+-- 
+2.7.4
+
diff --git a/tools/patman/test/test01.txt b/tools/patman/test/test01.txt
new file mode 100644
index 0000000000..8ad9587aef
--- /dev/null
+++ b/tools/patman/test/test01.txt
@@ -0,0 +1,56 @@
+commit b9da5f937bd5ea4931ea17459bf79b2905d9594d
+Author: Simon Glass <sjg@chromium.org>
+Date:   Sat Apr 15 15:39:08 2017 -0600
+
+    pci: Correct cast for sandbox
+    
+    This gives a warning with some native compilers:
+    
+    cmd/pci.c:152:11: warning: format ‘%llx’ expects argument of type
+       ‘long long unsigned int’, but argument 3 has type
+       ‘u64 {aka long unsigned int}’ [-Wformat=]
+    
+    Fix it with a cast.
+    
+    Signed-off-by: Simon Glass <sjg@chromium.org>
+    Series-notes:
+    some notes
+    about some things
+    from the first commit
+    END
+    
+    Commit-notes:
+    Some notes about
+    the first commit
+    END
+
+commit 5ab48490f03051875ab13d288a4bf32b507d76fd
+Author: Simon Glass <sjg@chromium.org>
+Date:   Sat Apr 15 15:39:08 2017 -0600
+
+    fdt: Correct cast for sandbox in fdtdec_setup_memory_size()
+    
+    This gives a warning with some native compilers:
+    
+    lib/fdtdec.c:1203:8: warning: format ‘%llx’ expects argument of type
+       ‘long long unsigned int’, but argument 3 has type
+       ‘long unsigned int’ [-Wformat=]
+    
+    Fix it with a cast.
+    
+    Signed-off-by: Simon Glass <sjg@chromium.org>
+    Series-to: u-boot
+    Series-prefix: RFC
+    Series-cc: Stefan Brüns <stefan.bruens@rwth-aachen.de>
+    Cover-letter-cc: Lord Mëlchett <clergy@palace.gov>
+    Series-version: 3
+    Patch-cc: fred
+    Series-changes: 4
+    - Some changes
+    
+    Cover-letter:
+    test: A test patch series
+    This is a test of how the cover
+    leter
+    works
+    END