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# Copyright 2013 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 import test
from telemetry.page import page
from telemetry.page import page_set
from telemetry.page import page_test
# pylint: disable=W0401,W0614
from telemetry.page.actions.all_page_actions import *
from webgl_conformance import WebglConformanceValidator
from webgl_conformance import conformance_harness_script
from webgl_conformance import conformance_path
robustness_harness_script = conformance_harness_script + r"""
var robustnessTestHarness = {};
robustnessTestHarness._contextLost = false;
robustnessTestHarness.initialize = function() {
var canvas = document.getElementById('example');
canvas.addEventListener('webglcontextlost', function() {
robustnessTestHarness._contextLost = true;
});
}
robustnessTestHarness.runTestLoop = function() {
// Run the test in a loop until the context is lost.
main();
if (!robustnessTestHarness._contextLost)
window.requestAnimationFrame(robustnessTestHarness.runTestLoop);
else
robustnessTestHarness.notifyFinished();
}
robustnessTestHarness.notifyFinished = function() {
// The test may fail in unpredictable ways depending on when the context is
// lost. We ignore such errors and only require that the browser doesn't
// crash.
webglTestHarness._allTestSucceeded = true;
// Notify test completion after a delay to make sure the browser is able to
// recover from the lost context.
setTimeout(webglTestHarness.notifyFinished, 3000);
}
window.confirm = function() {
robustnessTestHarness.initialize();
robustnessTestHarness.runTestLoop();
return false;
}
window.webglRobustnessTestHarness = robustnessTestHarness;
"""
class WebglRobustnessPage(page.Page):
def __init__(self, page_set, base_dir):
super(WebglRobustnessPage, self).__init__(
url='file://extra/lots-of-polys-example.html',
page_set=page_set,
base_dir=base_dir)
self.script_to_evaluate_on_commit = robustness_harness_script
def RunNavigateSteps(self, action_runner):
action_runner.NavigateToPage(self)
action_runner.RunAction(
WaitAction({'javascript': 'webglTestHarness._finished'}))
class WebglRobustness(test.Test):
test = WebglConformanceValidator
def CreatePageSet(self, options):
ps = page_set.PageSet(
file_path=conformance_path,
user_agent_type='desktop',
serving_dirs=[''])
ps.AddPage(WebglRobustnessPage(ps, ps.base_dir))
return ps
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