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REF: Assert json roundtrip equal #28626

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Merged
merged 6 commits into from
Sep 27, 2019
Merged

REF: Assert json roundtrip equal #28626

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94e528a
Add assert_json_roundtrip_equal function
bganglia Sep 23, 2019
7cb5f85
assert_json_roundtrip_equal calls
bganglia Sep 23, 2019
318669d
Remove trailing whitespace
bganglia Sep 26, 2019
e3244b8
Remove trailing whitespace
bganglia Sep 27, 2019
23d2b1c
Update test_pandas.py
bganglia Sep 27, 2019
10a69ad
Remove whitespace
bganglia Sep 27, 2019
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64 changes: 16 additions & 48 deletions pandas/tests/io/json/test_pandas.py
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,14 @@
_mixed_frame = _frame.copy()


def assert_json_roundtrip_equal(result, expected, orient):
if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))
assert_frame_equal(result, expected)


class TestPandasContainer:
@pytest.fixture(scope="function", autouse=True)
def setup(self, datapath):
Expand Down Expand Up @@ -90,25 +98,15 @@ def test_frame_double_encoded_labels(self, orient):
result = read_json(df.to_json(orient=orient), orient=orient)
expected = df.copy()

if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))

assert_frame_equal(result, expected)
assert_json_roundtrip_equal(result, expected, orient)

@pytest.mark.parametrize("orient", ["split", "records", "values"])
def test_frame_non_unique_index(self, orient):
df = DataFrame([["a", "b"], ["c", "d"]], index=[1, 1], columns=["x", "y"])
result = read_json(df.to_json(orient=orient), orient=orient)
expected = df.copy()

if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))

assert_frame_equal(result, expected)
assert_json_roundtrip_equal(result, expected, orient)

@pytest.mark.parametrize("orient", ["index", "columns"])
def test_frame_non_unique_index_raises(self, orient):
Expand Down Expand Up @@ -172,12 +170,7 @@ def test_roundtrip_simple(self, orient, convert_axes, numpy, dtype):
# TODO: debug why sort is required
expected = expected.sort_index()

if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))

tm.assert_frame_equal(result, expected)
assert_json_roundtrip_equal(result, expected, orient)

@pytest.mark.parametrize("dtype", [False, np.int64])
@pytest.mark.parametrize("convert_axes", [True, False])
Expand All @@ -191,11 +184,6 @@ def test_roundtrip_intframe(self, orient, convert_axes, numpy, dtype):
if not numpy and (orient == "index" or (PY35 and orient == "columns")):
expected = expected.sort_index()

if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))

if (
numpy
and (is_platform_32bit() or is_platform_windows())
Expand All @@ -205,7 +193,7 @@ def test_roundtrip_intframe(self, orient, convert_axes, numpy, dtype):
# TODO: see what is causing roundtrip dtype loss
expected = expected.astype(np.int32)

tm.assert_frame_equal(result, expected)
assert_json_roundtrip_equal(result, expected, orient)

@pytest.mark.parametrize("dtype", [None, np.float64, np.int, "U3"])
@pytest.mark.parametrize("convert_axes", [True, False])
Expand Down Expand Up @@ -246,12 +234,7 @@ def test_roundtrip_str_axes(self, orient, convert_axes, numpy, dtype):
elif orient == "records" and convert_axes:
expected.columns = expected.columns.astype(np.int64)

if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))

tm.assert_frame_equal(result, expected)
assert_json_roundtrip_equal(result, expected, orient)

@pytest.mark.parametrize("convert_axes", [True, False])
@pytest.mark.parametrize("numpy", [True, False])
Expand All @@ -277,12 +260,7 @@ def test_roundtrip_categorical(self, orient, convert_axes, numpy):
if not numpy and (orient == "index" or (PY35 and orient == "columns")):
expected = expected.sort_index()

if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))

tm.assert_frame_equal(result, expected)
assert_json_roundtrip_equal(result, expected, orient)

@pytest.mark.parametrize("convert_axes", [True, False])
@pytest.mark.parametrize("numpy", [True, False])
Expand Down Expand Up @@ -320,12 +298,7 @@ def test_roundtrip_timestamp(self, orient, convert_axes, numpy):

expected.index = idx

if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))

tm.assert_frame_equal(result, expected)
assert_json_roundtrip_equal(result, expected, orient)

@pytest.mark.parametrize("convert_axes", [True, False])
@pytest.mark.parametrize("numpy", [True, False])
Expand Down Expand Up @@ -354,12 +327,7 @@ def test_roundtrip_mixed(self, orient, convert_axes, numpy):
if not numpy and (orient == "index" or (PY35 and orient == "columns")):
expected = expected.sort_index()

if orient == "records" or orient == "values":
expected = expected.reset_index(drop=True)
if orient == "values":
expected.columns = range(len(expected.columns))

tm.assert_frame_equal(result, expected)
assert_json_roundtrip_equal(result, expected, orient)

@pytest.mark.parametrize(
"data,msg,orient",
Expand Down