Returns expected running time for a test by looking up the time in
test/ExpectedPerf, using the current machine name and
browser. See getMachineName and getBrowserName.
Parameters
testName: string
the name of the test
defaultTime: number = 10000
the default expected running time to use when unable
to find expected time
Returns expected running time for a test by looking up the time in test/ExpectedPerf, using the current machine name and browser. See
getMachineNameandgetBrowserName.