| # Copyright 2015 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 logging |
| import math |
| import os |
| |
| from telemetry import decorators |
| from telemetry.internal.actions import drag |
| from telemetry.internal.actions import page_action |
| from telemetry.testing import tab_test_case |
| |
| |
| class DragActionTest(tab_test_case.TabTestCase): |
| def CheckWithinRange(self, value, expected, error_ratio): |
| error_range = abs(expected * error_ratio) |
| return abs(value - expected) <= error_range |
| |
| @decorators.Disabled('chromeos') # crbug.com/483212 |
| def testDragAction(self): |
| self.Navigate('draggable.html') |
| |
| with open(os.path.join(os.path.dirname(__file__), |
| 'gesture_common.js')) as f: |
| js = f.read() |
| self._tab.ExecuteJavaScript(js) |
| |
| div_width = self._tab.EvaluateJavaScript( |
| '__GestureCommon_GetBoundingVisibleRect(document.body).width') |
| div_height = self._tab.EvaluateJavaScript( |
| '__GestureCommon_GetBoundingVisibleRect(document.body).height') |
| |
| i = drag.DragAction(left_start_ratio=0.5, top_start_ratio=0.5, |
| left_end_ratio=0.25, top_end_ratio=0.25) |
| try: |
| i.WillRunAction(self._tab) |
| except page_action.PageActionNotSupported: |
| logging.warning('This browser does not support drag gesture. Please try' |
| ' updating chrome.') |
| return |
| |
| self._tab.ExecuteJavaScript(''' |
| window.__dragAction.beginMeasuringHook = function() { |
| window.__didBeginMeasuring = true; |
| }; |
| window.__dragAction.endMeasuringHook = function() { |
| window.__didEndMeasuring = true; |
| };''') |
| i.RunAction(self._tab) |
| |
| self.assertTrue(self._tab.EvaluateJavaScript('window.__didBeginMeasuring')) |
| self.assertTrue(self._tab.EvaluateJavaScript('window.__didEndMeasuring')) |
| |
| div_position_x = self._tab.EvaluateJavaScript( |
| 'document.getElementById("drag_div").offsetLeft') |
| div_position_y = self._tab.EvaluateJavaScript( |
| 'document.getElementById("drag_div").offsetTop') |
| |
| # 0.25 is the ratio of displacement to the initial size. |
| expected_x = math.floor(div_width * -0.25) |
| expected_y = math.floor(div_height * -0.25) |
| error_ratio = 0.1 |
| |
| self.assertTrue( |
| self.CheckWithinRange(div_position_x, expected_x, error_ratio), |
| msg="Moved element's left coordinate: %d, expected: %d" % |
| (div_position_x, expected_x)) |
| self.assertTrue( |
| self.CheckWithinRange(div_position_y, expected_y, error_ratio), |
| msg="Moved element's top coordinate: %d, expected: %d" % |
| (div_position_y, expected_y)) |
