Refactor WPT Export to ensure only one PR in flight at a time

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

Index: third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt_unittest.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt_unittest.py b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt_unittest.py
index 0bc5361cc3d0766ab74a4fb4c140a33ca996dfb9..692a3658d05db3fd3db874abd0587f6a1f0cab4a 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt_unittest.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/w3c/chromium_wpt_unittest.py
@@ -9,4 +9,61 @@ from webkitpy.w3c.chromium_wpt import ChromiumWPT
 
 
 class ChromiumWPTTest(unittest.TestCase):
-    pass
+
+    def test_exportable_commits_since(self):
+        host = MockHost()
+
+        def mock_command(args):
+            git_command = args[1]
+            if git_command == 'rev-list':
+                return 'badbeef8'
+            else:
+                return ''
+
+        host.executive = MockExecutive2(run_command_fn=mock_command)
+
+        chromium_wpt = ChromiumWPT(host)
+        commits = chromium_wpt.exportable_commits_since('3dadcafe')
+        self.assertEqual(len(commits), 1)
+
+    def test_ignores_commits_with_noexport_true(self):
+        host = MockHost()
+
+        return_vals = [
+            'Commit message\nNOEXPORT=true',  # show (message)
+            'deadbeefcafe',  # rev-list
+            'third_party/WebKit/LayoutTests/imported/wpt',  # rev-parse
+        ]
+        host.executive = MockExecutive2(run_command_fn=lambda _: return_vals.pop())
+
+        chromium_wpt = ChromiumWPT(host)
+        commits = chromium_wpt.exportable_commits_since('3dadcafe')
+        self.assertEqual(len(commits), 0)
+
+    def test_ignores_reverted_commits_with_noexport_true(self):
+        host = MockHost()
+
+        return_vals = [
+            'Commit message\n> NOEXPORT=true',  # show (message)
+            'deadbeefcafe',  # rev-list
+            'third_party/WebKit/LayoutTests/imported/wpt',  # rev-parse
+        ]
+        host.executive = MockExecutive2(run_command_fn=lambda _: return_vals.pop())
+
+        chromium_wpt = ChromiumWPT(host)
+        commits = chromium_wpt.exportable_commits_since('3dadcafe')
+        self.assertEqual(len(commits), 0)
+
+    def test_ignores_commits_that_start_with_import(self):
+        host = MockHost()
+
+        return_vals = [
+            'Import rutabaga@deadbeef',  # show (message)
+            'deadbeefcafe',  # rev-list
+            'third_party/WebKit/LayoutTests/imported/wpt',  # rev-parse
+        ]
+        host.executive = MockExecutive2(run_command_fn=lambda _: return_vals.pop())
+
+        chromium_wpt = ChromiumWPT(host)
+        commits = chromium_wpt.exportable_commits_since('3dadcafe')
+        self.assertEqual(len(commits), 0)