NOT FOR LANDING: How do we add unit tests for bindings?

third_party/WebKit/Tools/Scripts/webkitpy/bindings/bindings_path_finder.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.
+
+# Source/ path is needed both to find input IDL files, and to import other
+# Python modules.
+
+"""Tiny utility to find various paths, relevant for running bindings
+tests.
+"""
+
+import os
+
+
+def get_blink_source():
+    return os.path.normpath(
+        os.path.join(
+            os.path.dirname(__file__), os.pardir, os.pardir, os.pardir,
+            os.pardir, 'Source'))
+
+
+def get_bindings_scripts():
+    return os.path.join(get_blink_source(), 'bindings', 'scripts')
+
+
+def get_test_input():
+    return os.path.join(get_blink_source(), 'bindings', 'tests', 'idls')
+
+
+def get_test_results():
+    return os.path.join(get_blink_source(), 'bindings', 'tests', 'results')