[chromedriver] Add back the speed test; suppressed

BUG= Review URL: https://codereview.chromium.org/1018453002 Cr-Commit-Position: refs/heads/master@{#320798}

[chromedriver] Add back the speed test; suppressed
BUG= Review URL: https://codereview.chromium.org/1018453002 Cr-Commit-Position: refs/heads/master@{#320798}
b386883d · srawlins · Commit bot · ce744394 · b386883d
Commit b386883d authored Mar 16, 2015 by srawlins Committed by Commit bot Mar 16, 2015
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chrome/test/chromedriver/test/run_py_tests.py chrome/test/chromedriver/test/run_py_tests.py +29 -0

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--- a/chrome/test/chromedriver/test/run_py_tests.py
+++ b/chrome/test/chromedriver/test/run_py_tests.py
@@ -52,6 +52,9 @@ _NEGATIVE_FILTER = [
    'ChromeDriverTest.testAlert',
    # Enable per-browser when http://crbug.com/456324 is fixed.
    'ChromeDriverTest.testEmulateNetworkConditionsOffline',
+    # This test is too flaky on the bots, but seems to run perfectly fine
+    # on developer workstations.
+    'ChromeDriverTest.testEmulateNetworkConditionsSpeed',
 ]

 _VERSION_SPECIFIC_FILTER = {}
@@ -159,6 +162,7 @@ _ANDROID_NEGATIVE_FILTER['chromedriver_webview_shell'] = (
        # WebView doesn't support emulating network conditions.
        'ChromeDriverTest.testEmulateNetworkConditions',
        'ChromeDriverTest.testEmulateNetworkConditionsOffline',
+        'ChromeDriverTest.testEmulateNetworkConditionsSpeed',
    ]
 )

@@ -803,6 +807,31 @@ class ChromeDriverTest(ChromeDriverBaseTest):
    self.assertEquals(throughput, network['download_throughput']);
    self.assertEquals(throughput, network['upload_throughput']);

+  def testEmulateNetworkConditionsSpeed(self):
+    # Warm up the browser.
+    self._http_server.SetDataForPath(
+        '/', "<html><body>blank</body></html>")
+    self._driver.Load(self._http_server.GetUrl() + '/')
+
+    # DSL: 2Mbps throughput, 5ms RTT
+    latency = 5
+    throughput_kbps = 2048
+    throughput = throughput_kbps * 1024
+    self._driver.SetNetworkConditions(latency, throughput, throughput)
+
+    _32_bytes = " 0 1 2 3 4 5 6 7 8 9 A B C D E F"
+    _1_megabyte = _32_bytes * 32768
+    self._http_server.SetDataForPath(
+        '/1MB',
+        "<html><body>%s</body></html>" % _1_megabyte)
+    start = time.time()
+    self._driver.Load(self._http_server.GetUrl() + '/1MB')
+    finish = time.time()
+    duration = finish - start
+    actual_throughput_kbps = 1024 / duration
+    self.assertLessEqual(actual_throughput_kbps, throughput_kbps * 1.5)
+    self.assertGreaterEqual(actual_throughput_kbps, throughput_kbps / 1.5)
+
  def testEmulateNetworkConditionsOffline(self):
    self._driver.SetNetworkConditions(5, 2048, 2048, offline=True)
    self._driver.Load(self.GetHttpUrlForFile('/chromedriver/page_test.html'))