def test_cmp_cross_reso(self):
# numpy gets this wrong because of silent overflow
dt64 = np.datetime64(106752, "D") # won't fit in M8[ns]
ts = Timestamp._from_dt64(dt64)
other = Timestamp(dt64 - 1)
assert other < ts
assert other.asm8 > ts.asm8 # <- numpy gets this wrong
assert ts > other
assert ts.asm8 < other.asm8 # <- numpy gets this wrong
assert not other == ts
assert ts != other
def test_cmp_cross_reso(self):
# numpy gets this wrong because of silent overflow
dt64 = np.datetime64(9223372800, "s") # won't fit in M8[ns]
ts = Timestamp._from_dt64(dt64)
# subtracting 3600*24 gives a datetime64 that _can_ fit inside the
# nanosecond implementation bounds.
other = Timestamp(dt64 - 3600 * 24)
assert other < ts
assert other.asm8 > ts.asm8 # <- numpy gets this wrong
assert ts > other
assert ts.asm8 < other.asm8 # <- numpy gets this wrong
assert not other == ts
assert ts != other
def test_cmp_cross_reso_reversed_dt64(self):
dt64 = np.datetime64(106752, "D") # won't fit in M8[ns]
ts = Timestamp._from_dt64(dt64)
other = Timestamp(dt64 - 1)
assert other.asm8 < ts
def ts(self, dt64):
return Timestamp._from_dt64(dt64)