Merge webkit_patch and multi_command_tool.

third_party/WebKit/Tools/Scripts/webkitpy/tool/webkit_patch_unittest.py

+# 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.system.outputcapture import OutputCapture
+from webkitpy.tool.webkit_patch import WebKitPatch
+
+
+class WebKitPatchTest(unittest.TestCase):
+
+    def test_split_args_basic(self):
+        self.assertEqual(
+            WebKitPatch._split_command_name_from_args(['--global-option', 'command', '--option', 'arg']),
+            ('command', ['--global-option', '--option', 'arg']))
+
+    def test_split_args_empty(self):
+        self.assertEqual(
+            WebKitPatch._split_command_name_from_args([]),
+            (None, []))
+
+    def test_split_args_with_no_options(self):
+        self.assertEqual(
+            WebKitPatch._split_command_name_from_args(['command', 'arg']),
+            ('command', ['arg']))
+
+    def test_command_by_name(self):
+        tool = WebKitPatch()
+        self.assertEqual(tool.command_by_name('help').name, 'help')
+        self.assertIsNone(tool.command_by_name('non-existent'))
+
+    def test_help(self):
+        oc = OutputCapture()
+        oc.capture_output()
+        tool = WebKitPatch()
+        tool.main(['tool', 'help'])
+        out, err, logs = oc.restore_output()
+        self.assertTrue(out.startswith('Usage: '))
+        self.assertEqual('', err)
+        self.assertEqual('', logs)
+
+    def test_constructor_calls_bind_to_tool(self):
+        tool = WebKitPatch()
+        self.assertEqual(tool.commands[0]._tool, tool)
+        self.assertEqual(tool.commands[1]._tool, tool)