TST: Remove duplicate TimdeltaIndex tests (pandas-dev#19509)

Author: jschendel

pandas/tests/indexes/timedeltas/test_astype.py

@@ -2,36 +2,20 @@
 
 import numpy as np
 
-import pandas as pd
 import pandas.util.testing as tm
 from pandas import (TimedeltaIndex, timedelta_range, Int64Index, Float64Index,
- Index, Timedelta)
+ Index, Timedelta, NaT)
 
-from ..datetimelike import DatetimeLike
 
-
-class TestTimedeltaIndex(DatetimeLike):
- _holder = TimedeltaIndex
+class TestTimedeltaIndex(object):
  _multiprocess_can_split_ = True
 
- def test_numeric_compat(self):
- # Dummy method to override super's version; this test is now done
- # in test_arithmetic.py
- pass
-
- def setup_method(self, method):
- self.indices = dict(index=tm.makeTimedeltaIndex(10))
- self.setup_indices()
-
- def create_index(self):
- return pd.to_timedelta(range(5), unit='d') + pd.offsets.Hour(1)
-
  def test_astype(self):
  # GH 13149, GH 13209
- idx = TimedeltaIndex([1e14, 'NaT', pd.NaT, np.NaN])
+ idx = TimedeltaIndex([1e14, 'NaT', NaT, np.NaN])
 
  result = idx.astype(object)
- expected = Index([Timedelta('1 days 03:46:40')] + [pd.NaT] * 3,
+ expected = Index([Timedelta('1 days 03:46:40')] + [NaT] * 3,
  dtype=object)
  tm.assert_index_equal(result, expected)
 
@@ -51,7 +35,7 @@ def test_astype(self):
 
  def test_astype_timedelta64(self):
  # GH 13149, GH 13209
- idx = TimedeltaIndex([1e14, 'NaT', pd.NaT, np.NaN])
+ idx = TimedeltaIndex([1e14, 'NaT', NaT, np.NaN])
 
  result = idx.astype('timedelta64')
  expected = Float64Index([1e+14] + [np.NaN] * 3, dtype='float64')
@@ -69,28 +53,7 @@ def test_astype_timedelta64(self):
  float, 'datetime64', 'datetime64[ns]'])
  def test_astype_raises(self, dtype):
  # GH 13149, GH 13209
- idx = TimedeltaIndex([1e14, 'NaT', pd.NaT, np.NaN])
+ idx = TimedeltaIndex([1e14, 'NaT', NaT, np.NaN])
  msg = 'Cannot cast TimedeltaIndex to dtype'
  with tm.assert_raises_regex(TypeError, msg):
  idx.astype(dtype)
-
- def test_pickle_compat_construction(self):
- pass
-
- def test_shift(self):
- # test shift for TimedeltaIndex
- # err8083
-
- drange = self.create_index()
- result = drange.shift(1)
- expected = TimedeltaIndex(['1 days 01:00:00', '2 days 01:00:00',
- '3 days 01:00:00',
- '4 days 01:00:00', '5 days 01:00:00'],
- freq='D')
- tm.assert_index_equal(result, expected)
-
- result = drange.shift(3, freq='2D 1s')
- expected = TimedeltaIndex(['6 days 01:00:03', '7 days 01:00:03',
- '8 days 01:00:03', '9 days 01:00:03',
- '10 days 01:00:03'], freq='D')
- tm.assert_index_equal(result, expected)