1 files changed, 39 insertions, 0 deletions
diff --git a/catapult/telemetry/telemetry/internal/actions/pinch_unittest.py b/catapult/telemetry/telemetry/internal/actions/pinch_unittest.py
new file mode 100644
index 00000000..6d2aa50d
--- /dev/null
+++ b/catapult/telemetry/telemetry/internal/actions/pinch_unittest.py
@@ -0,0 +1,39 @@
+# Copyright 2014 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.
+
+from telemetry.internal.actions import page_action
+from telemetry.testing import tab_test_case
+
+
+class PinchActionTest(tab_test_case.TabTestCase):
+  def setUp(self):
+    super(PinchActionTest, self).setUp()
+
+  def testPinchByApiCalledWithCorrectArguments(self):
+    self.Navigate('blank.html')
+    if not page_action.IsGestureSourceTypeSupported(self._tab, 'touch'):
+      return
+
+    action_runner = self._tab.action_runner
+    action_runner.ExecuteJavaScript('''
+        chrome.gpuBenchmarking.pinchBy = function(
+            scaleFactor, anchorLeft, anchorTop, callback, speed) {
+          window.__test_scaleFactor = scaleFactor;
+          window.__test_anchorLeft = anchorLeft;
+          window.__test_anchorTop = anchorTop;
+          window.__test_callback = callback;
+          window.__test_speed = speed;
+          window.__pinchActionDone = true;
+        };''')
+    action_runner.PinchPage(scale_factor=2)
+    self.assertEqual(
+        2, action_runner.EvaluateJavaScript('window.__test_scaleFactor'))
+    self.assertTrue(
+        action_runner.EvaluateJavaScript('!isNaN(window.__test_anchorLeft)'))
+    self.assertTrue(
+        action_runner.EvaluateJavaScript('!isNaN(window.__test_anchorTop)'))
+    self.assertTrue(
+        action_runner.EvaluateJavaScript('!!window.__test_callback'))
+    self.assertEqual(
+        800, action_runner.EvaluateJavaScript('window.__test_speed'))