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TST: Use IPython instance fixture to avoid file leak #44700

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Dec 1, 2021
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TST: Use IPython instance fixture to avoid file leak #44700

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27 changes: 9 additions & 18 deletions pandas/tests/io/formats/test_printing.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
import numpy as np
import pytest

import pandas._config.config as cf

Expand Down Expand Up @@ -120,16 +119,8 @@ def test_ambiguous_width(self):


class TestTableSchemaRepr:
@classmethod
def setup_class(cls):
pytest.importorskip("IPython")

from IPython.core.interactiveshell import InteractiveShell

cls.display_formatter = InteractiveShell.instance().display_formatter

def test_publishes(self):

def test_publishes(self, ip):
ipython = ip.instance(config=ip.config)
df = pd.DataFrame({"A": [1, 2]})
objects = [df["A"], df, df] # dataframe / series
expected_keys = [
Expand All @@ -140,13 +131,13 @@ def test_publishes(self):
opt = pd.option_context("display.html.table_schema", True)
for obj, expected in zip(objects, expected_keys):
with opt:
formatted = self.display_formatter.format(obj)
formatted = ipython.display_formatter.format(obj)
assert set(formatted[0].keys()) == expected

with_latex = pd.option_context("display.latex.repr", True)

with opt, with_latex:
formatted = self.display_formatter.format(obj)
formatted = ipython.display_formatter.format(obj)

expected = {
"text/plain",
Expand All @@ -156,7 +147,7 @@ def test_publishes(self):
}
assert set(formatted[0].keys()) == expected

def test_publishes_not_implemented(self):
def test_publishes_not_implemented(self, ip):
# column MultiIndex
# GH 15996
midx = pd.MultiIndex.from_product([["A", "B"], ["a", "b", "c"]])
Expand All @@ -165,7 +156,7 @@ def test_publishes_not_implemented(self):
opt = pd.option_context("display.html.table_schema", True)

with opt:
formatted = self.display_formatter.format(df)
formatted = ip.instance(config=ip.config).display_formatter.format(df)

expected = {"text/plain", "text/html"}
assert set(formatted[0].keys()) == expected
Expand All @@ -184,9 +175,9 @@ def test_config_default_off(self):

assert result is None

def test_enable_data_resource_formatter(self):
def test_enable_data_resource_formatter(self, ip):
# GH 10491
formatters = self.display_formatter.formatters
formatters = ip.instance(config=ip.config).display_formatter.formatters
mimetype = "application/vnd.dataresource+json"

with pd.option_context("display.html.table_schema", True):
Expand All @@ -202,4 +193,4 @@ def test_enable_data_resource_formatter(self):
assert "application/vnd.dataresource+json" in formatters
assert formatters[mimetype].enabled
# smoke test that it works
self.display_formatter.format(cf)
ip.instance(config=ip.config).display_formatter.format(cf)