def test_1010(self):
"""has_tz(): Returns True for dt that has tz"""
assert dt.has_tz(T1_MST)
assert dt.has_tz(T2_UTC)
assert dt.has_tz(T1_YEKT)
def test_1000(self):
"""has_tz(): Returns false for naive dt"""
assert not dt.has_tz(T1_NAIVE)