Move exportable_commits_since to webkitpy/w3c/common.py.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/common_unittest.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/w3c/common_unittest.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/common_unittest.py b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/common_unittest.py
new file mode 100644
index 0000000000000000000000000000000000000000..bc8ea5154cb5fb3c7e23d49d7521ffcb8c905954
--- /dev/null
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/common_unittest.py
@@ -0,0 +1,109 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import unittest
+
+from webkitpy.common.host_mock import MockHost
+from webkitpy.common.system.executive_mock import MockExecutive
+from webkitpy.w3c.chromium_commit import ChromiumCommit
+from webkitpy.w3c.common import exportable_commits_since
+
+
+# TODO(qyearsley): Move this to executive_mock.

[jeffcarp, 2017/01/20 22:22:55]

Would it be cleaner if we integrated this functionality into MockExecutive
itself? e.g. to be able to pass it a list of expected arguments & their
corresponding outputs.

[qyearsley, 2017/01/20 22:40:02]

Yeah, that sounds like a good idea - in this case we're wanting to map
specifically from git subcommands to values, although in the general case we
might want to map from commands or full args lists to values... so now I'm not
sure what's the best way to do it. Maybe it will actually be better to just
leave this here...

+def mock_command_exec(vals):
+    def run_fn(args):
+        sub_command = args[1]
+        return vals.get(sub_command, '')
+    return MockExecutive(run_command_fn=run_fn)
+
+
+class MockLocalWPT(object):
+
+    def test_patch(self, _):
+        return True
+
+
+class CommonTest(unittest.TestCase):
+
+    def test_exportable_commits_since(self):
+        host = MockHost()
+        host.executive = mock_command_exec({
+            'show': 'fake message',
+            'rev-list': 'badbeef8',
+            'rev-parse': 'badbeef8',
+            'crrev-parse': 'badbeef8',
+            'diff': 'fake diff',
+            'diff-tree': 'some\nfiles',
+            'format-patch': 'hey I\'m a patch',
+            'footers': 'cr-rev-position',
+        })
+
+        commits = exportable_commits_since('beefcafe', host, MockLocalWPT())
+        self.assertEqual(len(commits), 1)
+        self.assertIsInstance(commits[0], ChromiumCommit)
+        self.assertEqual(host.executive.calls, [
+            ['git', 'rev-parse', '--show-toplevel'],
+            ['git', 'rev-list', 'beefcafe..HEAD', '--reverse', '--', 'badbeef8/third_party/WebKit/LayoutTests/external/wpt/'],
+            ['git', 'diff-tree', '--name-only', '--no-commit-id', '-r', 'badbeef8', '--',
+             '/mock-checkout/third_party/WebKit/LayoutTests/external/wpt'],
+            ['git', 'format-patch', '-1', '--stdout', 'badbeef8', '--', 'some', 'files'],
+            ['git', 'show', '--format=%B', '--no-patch', 'badbeef8'],
+            ['git', 'show', '--format=%B', '--no-patch', 'badbeef8']
+        ])
+
+    def test_ignores_commits_with_noexport_true(self):
+        host = MockHost()
+        host.executive = mock_command_exec({
+            'show': 'Commit message\nNOEXPORT=true',
+            'rev-list': 'badbeef8',
+            'rev-parse': 'badbeef8',
+            'footers': 'cr-rev-position',
+        })
+
+        commits = exportable_commits_since('beefcafe', host, MockLocalWPT())
+        self.assertEqual(commits, [])
+        self.assertEqual(host.executive.calls, [
+            ['git', 'rev-parse', '--show-toplevel'],
+            ['git', 'rev-list', 'beefcafe..HEAD', '--reverse', '--',
+             'badbeef8/third_party/WebKit/LayoutTests/external/wpt/'],
+            ['git', 'diff-tree', '--name-only', '--no-commit-id', '-r', 'badbeef8', '--',
+             '/mock-checkout/third_party/WebKit/LayoutTests/external/wpt']
+        ])
+
+    def test_ignores_reverted_commits_with_noexport_true(self):
+        host = MockHost()
+        host.executive = mock_command_exec({
+            'show': 'Commit message\n> NOEXPORT=true',
+            'rev-list': 'badbeef8',
+            'rev-parse': 'badbeef8',
+            'footers': 'cr-rev-position',
+        })
+
+        commits = exportable_commits_since('beefcafe', host, MockLocalWPT())
+        self.assertEqual(len(commits), 0)
+        self.assertEqual(host.executive.calls, [
+            ['git', 'rev-parse', '--show-toplevel'],
+            ['git', 'rev-list', 'beefcafe..HEAD', '--reverse', '--',
+             'badbeef8/third_party/WebKit/LayoutTests/external/wpt/'],
+            ['git', 'diff-tree', '--name-only', '--no-commit-id', '-r', 'badbeef8', '--',
+             '/mock-checkout/third_party/WebKit/LayoutTests/external/wpt']])
+
+    def test_ignores_commits_that_start_with_import(self):
+        host = MockHost()
+        host.executive = mock_command_exec({
+            'show': 'Import rutabaga@deadbeef',
+            'rev-list': 'badbeef8',
+            'rev-parse': 'badbeef8',
+            'footers': 'cr-rev-position',
+        })
+
+        commits = exportable_commits_since('beefcafe', host, MockLocalWPT())
+        self.assertEqual(commits, [])
+        self.assertEqual(host.executive.calls, [
+            ['git', 'rev-parse', '--show-toplevel'],
+            ['git', 'rev-list', 'beefcafe..HEAD', '--reverse', '--',
+             'badbeef8/third_party/WebKit/LayoutTests/external/wpt/'],
+            ['git', 'diff-tree', '--name-only', '--no-commit-id', '-r', 'badbeef8', '--',
+             '/mock-checkout/third_party/WebKit/LayoutTests/external/wpt']
+        ])