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BUG: Fixed encoding of pd.NA with to_json #31748

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Merged
merged 4 commits into from
Feb 8, 2020
Merged

BUG: Fixed encoding of pd.NA with to_json #31748

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715118e
BUG: Fixed encoding of pd.NA with to_json GH31615
ArtificialQualia Feb 6, 2020
c472a3a
DOC/TST: Update tests and docs for np.NA fix
ArtificialQualia Feb 6, 2020
cda6f07
DOC/TST: Fixes for PR
ArtificialQualia Feb 7, 2020
2f3853e
TST: remove label tests
ArtificialQualia Feb 7, 2020
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TST: remove label tests
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@ArtificialQualia
ArtificialQualia committed Feb 7, 2020
commit 2f3853e621d2168423c616bd34ab67d9465ef21b
14 changes: 0 additions & 14 deletions pandas/tests/io/json/test_pandas.py
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Expand Up @@ -1677,21 +1677,7 @@ def test_json_pandas_na(self):
result = pd.DataFrame([[pd.NA]]).to_json()
assert result == '{"0":{"0":null}}'

def test_json_pandas_na_label(self):
# GH 31615
result = pd.DataFrame({pd.NA: ["a"]}).to_json()
assert result == '{"<NA>":{"0":"a"}}'

def test_json_pandas_nulls(self, nulls_fixture):
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@simonjayhawkins do you know of an easy way to add pd.NA to nulls_fixture inline during injection? Or would adding another fixture on top be the only way?

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since we already have two nulls_fixtures (nulls_fixture and unique_nulls_fixture), I think adding another could be the simplest way for now.

I think, in general, simpler to skip than to add a extra parameter (although I've not kept up with the latest pytest releases).

There is not a huge number of tests using the nulls_fixture and maybe tests that do should also test for pandas.NA, either now of in the future. So an alternative could be to add pd.NA to the existing nulls fixture and either skip of xfail.

# GH 31615
result = pd.DataFrame([[nulls_fixture]]).to_json()
assert result == '{"0":{"0":null}}'

def test_json_pandas_nulls_labels(self, nulls_fixture):
# GH 31615
result = pd.DataFrame({nulls_fixture: ["a"]}).to_json()
if nulls_fixture is pd.NaT:
null_string = "null"
else:
null_string = str(nulls_fixture)
assert result == '{"' + null_string + '":{"0":"a"}}'