def test_GenArgsOneConfig(self):
with tempfile.NamedTemporaryFile('w', delete=False) as base_file:
config = '''{
"BrowserBlackList": [
{ "group_name": "Enabled" }
],
"c": [
{
"group_name": "d.",
"params": {"url": "http://www.google.com"}
}
],
"SimpleParams": [
{
"group_name": "Default",
"params": {"id": "abc"}
}
]
}'''
try:
base_file.write(config)
base_file.close()
result = fieldtrial_util.GenerateArgs(base_file.name)
self.assertEqual(['--force-fieldtrials='
'BrowserBlackList/Enabled/c/d./SimpleParams/Default',
'--force-fieldtrial-params='
'c.d%2E:url/http%3A%2F%2Fwww%2Egoogle%2Ecom,'
'SimpleParams.Default:id/abc'], result)
finally:
os.unlink(base_file.name)
def _IsFieldTrialSizeBelowLimitOnWindows(input_api, file_path):
"""Checks whether the fieldtrial parameters exceeded the Windows cmd limit.
When launching chrome, the fieldtrial related parameters take more than
30,000 characters. Windows has a limit of 32767 characters on command
line and thus it raises parameter error when the parameters are too long.
Before we have a valid fix, we need to limit the number of fieldtrias in
fieldtrial_testing_config.json to 31,500, from the fact that the
non-fieldtrial parameters take roughly 1450 characters.
See crbug.com/1045530 for more details.
Args:
input_api: An instance passed to presubmit scripts telling info about the
changes.
file_path: the absolute path to the json file with the fieldtrial configs.
"""
sys.path.append(
input_api.os_path.join(input_api.PresubmitLocalPath(), '..', '..',
'tools', 'variations'))
import fieldtrial_util
args = fieldtrial_util.GenerateArgs(file_path, 'windows')
total_length = 0
for arg in args:
total_length += len(arg)
return total_length < 31500
def test_GenArgsOverrideConfig(self):
with tempfile.NamedTemporaryFile('w') as base_file:
config = '''{
"a": [
{ "group_name": "b" }
],
"c": [
{ "group_name": "d" }
]
}'''
base_file.write(config)
base_file.flush()
with tempfile.NamedTemporaryFile('w') as platform_file:
config = '''{
"a": [
{ "group_name": "1" }
],
"b": [
{ "group_name": "bgroup" }
]
}'''
platform_file.write(config)
platform_file.flush()
result = fieldtrial_util.GenerateArgs(base_file.name,
platform_file.name)
self.assertEqual(['--force-fieldtrials='
'a/1/c/d/b/bgroup'], result)
def _GetVariationsBrowserArgs(self, finder_options):
variations_dir = os.path.join(os.path.dirname(__file__), os.pardir,
os.pardir, os.pardir, 'testing',
'variations')
target_os = browser_finder.FindBrowser(finder_options).target_os
return fieldtrial_util.GenerateArgs(
os.path.join(
variations_dir, 'fieldtrial_testing_config_%s.json' %
self._FixupTargetOS(target_os)))
def _GetVariationsBrowserArgs(self, finder_options):
variations_dir = os.path.join(os.path.dirname(__file__), '..', '..',
'..', 'testing', 'variations')
possible_browser = browser_finder.FindBrowser(finder_options)
if not possible_browser:
return []
return fieldtrial_util.GenerateArgs(
os.path.join(variations_dir, 'fieldtrial_testing_config.json'),
self._FixupTargetOS(possible_browser.target_os))
def runGenerateArgs(self, config):
result = None
with tempfile.NamedTemporaryFile('w', delete=False) as base_file:
try:
base_file.write(config)
base_file.close()
result = fieldtrial_util.GenerateArgs(base_file.name)
finally:
os.unlink(base_file.name)
return result
def _GetVariationsBrowserArgs(self, finder_options, current_args):
chrome_root = finder_options.chrome_root
if chrome_root is None:
chrome_root = path_module.GetChromiumSrcDir()
variations_dir = os.path.join(chrome_root, 'testing', 'variations')
possible_browser = browser_finder.FindBrowser(finder_options)
if not possible_browser:
return []
return fieldtrial_util.GenerateArgs(
os.path.join(variations_dir, 'fieldtrial_testing_config.json'),
self.FixupTargetOS(possible_browser.target_os), current_args)
def GetExperimentArgs():
"""Returns a list of arguments with all tested field trials.
This function is a simple wrapper around the variation team's fieldtrail_util
script that generates command line arguments to test Chromium field trials.
Returns:
an array of command line arguments to pass to chrome
"""
config_path = os.path.join(os.path.dirname(__file__), os.pardir, os.pardir,
os.pardir, 'testing', 'variations', 'fieldtrial_testing_config.json')
my_platform = ''
if common.ParseFlags().android:
my_platform = 'android'
elif platform.system().lower() == 'linux':
my_platform = 'linux'
elif platform.system().lower() == 'windows':
my_platform = 'windows'
elif platform.system().lower() == 'darwin':
my_platform = 'mac'
else:
raise Exception('unknown platform!')
return fieldtrial_util.GenerateArgs(config_path, [my_platform])
def test_GenArgsEmptyPaths(self):
args = fieldtrial_util.GenerateArgs('', ['linux'])
self.assertEqual([], args)
