Index: tools/perf/contrib/cluster_telemetry/screenshot_unittest.py |
diff --git a/tools/perf/contrib/cluster_telemetry/screenshot_unittest.py b/tools/perf/contrib/cluster_telemetry/screenshot_unittest.py |
new file mode 100644 |
index 0000000000000000000000000000000000000000..7eef0b3f0c69e179e00a3b337d49a93d24a59599 |
--- /dev/null |
+++ b/tools/perf/contrib/cluster_telemetry/screenshot_unittest.py |
@@ -0,0 +1,41 @@ |
+# Copyright 2017 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 os |
+import shutil |
+import tempfile |
+ |
+from telemetry import decorators |
+from telemetry.testing import options_for_unittests |
+from telemetry.testing import page_test_test_case |
+from telemetry.util import image_util |
+from contrib.cluster_telemetry import screenshot |
+ |
+class ScreenshotUnitTest(page_test_test_case.PageTestTestCase): |
+ |
+ def setUp(self): |
+ self._options = options_for_unittests.GetCopy() |
+ self._png_outdir = tempfile.mkdtemp('_png_test') |
+ |
+ def tearDown(self): |
+ shutil.rmtree(self._png_outdir) |
+ |
+ @decorators.Enabled('linux') |
+ def testScreenshot(self): |
+ # Screenshots for Cluster Telemetry purposes currently only supported on |
+ # Linux platform. |
+ page_set = self.CreateStorySetFromFileInUnittestDataDir( |
+ 'screenshot_test.html') |
+ measurement = screenshot.Screenshot(self._png_outdir) |
+ self.RunMeasurement(measurement, page_set, options=self._options) |
+ |
+ path = self._png_outdir + '/' + page_set.stories[0].file_safe_name + '.png' |
+ self.assertTrue(os.path.exists(path)) |
+ self.assertTrue(os.path.isfile(path)) |
+ self.assertTrue(os.access(path, os.R_OK)) |
+ |
+ image = image_util.FromPngFile(path) |
+ screenshot_pixels = image_util.Pixels(image) |
+ special_colored_pixel = bytearray([217, 115, 43]) |
+ self.assertTrue(special_colored_pixel in screenshot_pixels) |