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Test messages test period #31824

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Merged
merged 2 commits into from
Feb 9, 2020
Merged

Test messages test period #31824

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e54c6d8
add messages for test_period.py
Feb 9, 2020
615d05f
remove breakpoints
Feb 9, 2020
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84 changes: 55 additions & 29 deletions pandas/tests/arithmetic/test_period.py
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Original file line number Diff line number Diff line change
Expand Up @@ -153,14 +153,17 @@ def test_eq_integer_disallowed(self, other):
result = idx == other

tm.assert_numpy_array_equal(result, expected)

with pytest.raises(TypeError):
msg = (
r"(:?Invalid comparison between dtype=period\[D\] and .*)"
r"|(:?Cannot compare type Period with type .*)"
)
with pytest.raises(TypeError, match=msg):
idx < other
with pytest.raises(TypeError):
with pytest.raises(TypeError, match=msg):
idx > other
with pytest.raises(TypeError):
with pytest.raises(TypeError, match=msg):
idx <= other
with pytest.raises(TypeError):
with pytest.raises(TypeError, match=msg):
idx >= other

def test_pi_cmp_period(self):
Expand Down Expand Up @@ -587,10 +590,11 @@ def test_parr_add_iadd_parr_raises(self, box_with_array):
# a set operation (union). This has since been changed to
# raise a TypeError. See GH#14164 and GH#13077 for historical
# reference.
with pytest.raises(TypeError):
msg = r"unsupported operand type\(s\) for \+: .* and .*"
with pytest.raises(TypeError, match=msg):
rng + other

with pytest.raises(TypeError):
with pytest.raises(TypeError, match=msg):
rng += other

def test_pi_sub_isub_pi(self):
Expand Down Expand Up @@ -625,7 +629,8 @@ def test_parr_sub_pi_mismatched_freq(self, box_with_array):
# TODO: parametrize over boxes for other?

rng = tm.box_expected(rng, box_with_array)
with pytest.raises(IncompatibleFrequency):
msg = r"Input has different freq=[HD] from PeriodArray\(freq=[DH]\)"
with pytest.raises(IncompatibleFrequency, match=msg):
rng - other

@pytest.mark.parametrize("n", [1, 2, 3, 4])
Expand Down Expand Up @@ -677,7 +682,8 @@ def test_parr_add_sub_float_raises(self, op, other, box_with_array):
dti = pd.DatetimeIndex(["2011-01-01", "2011-01-02"], freq="D")
pi = dti.to_period("D")
pi = tm.box_expected(pi, box_with_array)
with pytest.raises(TypeError):
msg = r"unsupported operand type\(s\) for [+-]: .* and .*"
with pytest.raises(TypeError, match=msg):
op(pi, other)

@pytest.mark.parametrize(
Expand All @@ -700,13 +706,18 @@ def test_parr_add_sub_invalid(self, other, box_with_array):
rng = pd.period_range("1/1/2000", freq="D", periods=3)
rng = tm.box_expected(rng, box_with_array)

with pytest.raises(TypeError):
msg = (
r"(:?cannot add PeriodArray and .*)"
r"|(:?cannot subtract .* from (:?a\s)?.*)"
r"|(:?unsupported operand type\(s\) for \+: .* and .*)"
)
with pytest.raises(TypeError, match=msg):
rng + other
with pytest.raises(TypeError):
with pytest.raises(TypeError, match=msg):
other + rng
with pytest.raises(TypeError):
with pytest.raises(TypeError, match=msg):
rng - other
with pytest.raises(TypeError):
with pytest.raises(TypeError, match=msg):
other - rng

# -----------------------------------------------------------------
Expand All @@ -717,14 +728,16 @@ def test_pi_add_sub_td64_array_non_tick_raises(self):
tdi = pd.TimedeltaIndex(["-1 Day", "-1 Day", "-1 Day"])
tdarr = tdi.values

with pytest.raises(IncompatibleFrequency):
msg = r"Input has different freq=None from PeriodArray\(freq=Q-DEC\)"
with pytest.raises(IncompatibleFrequency, match=msg):
rng + tdarr
with pytest.raises(IncompatibleFrequency):
with pytest.raises(IncompatibleFrequency, match=msg):
tdarr + rng

with pytest.raises(IncompatibleFrequency):
with pytest.raises(IncompatibleFrequency, match=msg):
rng - tdarr
with pytest.raises(TypeError):
msg = r"cannot subtract PeriodArray from timedelta64\[ns\]"
with pytest.raises(TypeError, match=msg):
tdarr - rng

def test_pi_add_sub_td64_array_tick(self):
Expand All @@ -751,10 +764,11 @@ def test_pi_add_sub_td64_array_tick(self):
result = rng - tdarr
tm.assert_index_equal(result, expected)

with pytest.raises(TypeError):
msg = r"cannot subtract .* from .*"
with pytest.raises(TypeError, match=msg):
tdarr - rng

with pytest.raises(TypeError):
with pytest.raises(TypeError, match=msg):
tdi - rng

# -----------------------------------------------------------------
Expand Down Expand Up @@ -783,10 +797,11 @@ def test_pi_add_offset_array(self, box):
unanchored = np.array([pd.offsets.Hour(n=1), pd.offsets.Minute(n=-2)])
# addition/subtraction ops with incompatible offsets should issue
# a PerformanceWarning and _then_ raise a TypeError.
with pytest.raises(IncompatibleFrequency):
msg = r"Input cannot be converted to Period\(freq=Q-DEC\)"
with pytest.raises(IncompatibleFrequency, match=msg):
with tm.assert_produces_warning(PerformanceWarning):
pi + unanchored
with pytest.raises(IncompatibleFrequency):
with pytest.raises(IncompatibleFrequency, match=msg):
with tm.assert_produces_warning(PerformanceWarning):
unanchored + pi

Expand All @@ -811,10 +826,11 @@ def test_pi_sub_offset_array(self, box):

# addition/subtraction ops with anchored offsets should issue
# a PerformanceWarning and _then_ raise a TypeError.
with pytest.raises(IncompatibleFrequency):
msg = r"Input has different freq=-1M from Period\(freq=Q-DEC\)"
with pytest.raises(IncompatibleFrequency, match=msg):
with tm.assert_produces_warning(PerformanceWarning):
pi - anchored
with pytest.raises(IncompatibleFrequency):
with pytest.raises(IncompatibleFrequency, match=msg):
with tm.assert_produces_warning(PerformanceWarning):
anchored - pi

Expand Down Expand Up @@ -924,7 +940,8 @@ def test_pi_sub_intarray(self, int_holder):
expected = pd.PeriodIndex([pd.Period("2014Q1"), pd.Period("NaT")])
tm.assert_index_equal(result, expected)

with pytest.raises(TypeError):
msg = r"bad operand type for unary -: 'PeriodArray'"
with pytest.raises(TypeError, match=msg):
other - pi

# ---------------------------------------------------------------
Expand Down Expand Up @@ -952,7 +969,11 @@ def test_pi_add_timedeltalike_minute_gt1(self, three_days):
result = rng - other
tm.assert_index_equal(result, expected)

with pytest.raises(TypeError):
msg = (
r"(:?bad operand type for unary -: 'PeriodArray')"
r"|(:?cannot subtract PeriodArray from timedelta64\[[hD]\])"
)
with pytest.raises(TypeError, match=msg):
other - rng

@pytest.mark.parametrize("freqstr", ["5ns", "5us", "5ms", "5s", "5T", "5h", "5d"])
Expand All @@ -974,8 +995,11 @@ def test_pi_add_timedeltalike_tick_gt1(self, three_days, freqstr):
expected = pd.period_range(rng[0] - other, periods=6, freq=freqstr)
result = rng - other
tm.assert_index_equal(result, expected)

with pytest.raises(TypeError):
msg = (
r"(:?bad operand type for unary -: 'PeriodArray')"
r"|(:?cannot subtract PeriodArray from timedelta64\[[hD]\])"
)
with pytest.raises(TypeError, match=msg):
other - rng

def test_pi_add_iadd_timedeltalike_daily(self, three_days):
Expand Down Expand Up @@ -1110,7 +1134,8 @@ def test_parr_add_sub_td64_nat(self, box_with_array, transpose):
tm.assert_equal(result, expected)
result = obj - other
tm.assert_equal(result, expected)
with pytest.raises(TypeError):
msg = r"cannot subtract .* from .*"
with pytest.raises(TypeError, match=msg):
other - obj

@pytest.mark.parametrize(
Expand All @@ -1133,7 +1158,8 @@ def test_parr_add_sub_tdt64_nat_array(self, box_with_array, other):
tm.assert_equal(result, expected)
result = obj - other
tm.assert_equal(result, expected)
with pytest.raises(TypeError):
msg = r"cannot subtract .* from .*"
with pytest.raises(TypeError, match=msg):
other - obj

# ---------------------------------------------------------------
Expand Down