def test_covar_wrong_stat(self):
ui.covar()
fail = False
wrong_stats = set(ui.list_stats()) - self.right_stats
for stat in wrong_stats:
ui.set_stat(stat)
try:
ui.get_draws()
except ValueError as ve:
self.assertEqual(self.wrong_stat_msg.format(stat), str(ve))
continue
fail = True
break
if fail:
self.fail(self.fail_msg)
def test_covar_wrong_stat(self):
ui.covar()
fail = False
wrong_stats = set(ui.list_stats()) - self.right_stats
for stat in wrong_stats:
ui.set_stat(stat)
try:
ui.get_draws()
except ValueError as ve:
self.assertEqual(self.wrong_stat_msg.format(stat), ve.message)
continue
fail = True
break
if fail:
self.fail(self.fail_msg)
WRONG_STAT_MSG = "Fit statistic must be cash, cstat or wstat, not {}"
WSTAT_ERR_MSG = "No background data has been supplied. Use cstat"
NO_COVAR_MSG = "covariance has not been performed"
RIGHT_STATS = {'cash', 'cstat', 'wstat'}
@pytest.fixture
def setup_covar(make_data_path):
print("A")
ui.load_data(make_data_path('sim.poisson.1.dat'))
ui.set_model(PowLaw1D("p1"))
@requires_data
@pytest.mark.parametrize('stat', sorted(set(ui.list_stats()) - RIGHT_STATS))
def test_covar_wrong_stat(stat, clean_ui, setup_covar):
"Test an exception is thrown is the proper stat is not set"
ui.covar()
ui.set_stat(stat)
with pytest.raises(ValueError) as exc:
ui.get_draws()
assert WRONG_STAT_MSG.format(stat) == str(exc.value)
@requires_data
def test_covar_wstat_no_background(clean_ui, setup_covar):
"Test an exception is thrown when wstat is used without background"