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TST: Make sparse test more strict #12789

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27 changes: 24 additions & 3 deletions pandas/util/testing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1203,31 +1203,52 @@ def assert_sp_array_equal(left, right):
assertIsInstance(right, pd.SparseArray, '[SparseArray]')

assert_almost_equal(left.sp_values, right.sp_values)

# SparseIndex comparison
assertIsInstance(left.sp_index, pd._sparse.SparseIndex, '[SparseIndex]')
assertIsInstance(right.sp_index, pd._sparse.SparseIndex, '[SparseIndex]')
assert (left.sp_index.equals(right.sp_index))

if np.isnan(left.fill_value):
assert (np.isnan(right.fill_value))
else:
assert (left.fill_value == right.fill_value)

assert_attr_equal('dtype', left, right)
assert_numpy_array_equal(left.values, right.values)


def assert_sp_series_equal(left, right, exact_indices=True, check_names=True):
def assert_sp_series_equal(left, right, exact_indices=True,
check_names=True, obj='SparseSeries'):
assertIsInstance(left, pd.SparseSeries, '[SparseSeries]')
assertIsInstance(right, pd.SparseSeries, '[SparseSeries]')

assert (left.index.equals(right.index))
assert_index_equal(left.index, right.index,
obj='{0}.index'.format(obj))

assert_sp_array_equal(left.block.values, right.block.values)

if check_names:
assert_attr_equal('name', left, right)
assert_attr_equal('dtype', left, right)

assert_numpy_array_equal(left.values, right.values)


def assert_sp_frame_equal(left, right, exact_indices=True):
def assert_sp_frame_equal(left, right, exact_indices=True,
obj='SparseDataFrame'):
"""
exact: Series SparseIndex objects must be exactly the same, otherwise just
compare dense representations
"""
assertIsInstance(left, pd.SparseDataFrame, '[SparseDataFrame]')
assertIsInstance(right, pd.SparseDataFrame, '[SparseDataFrame]')

assert_index_equal(left.index, right.index,
obj='{0}.index'.format(obj))
assert_index_equal(left.columns, right.columns,
obj='{0}.columns'.format(obj))

for col, series in compat.iteritems(left):
assert (col in right)
# trade-off?
Expand Down