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3 | 3 | import numpy as np
|
4 | 4 | import pandas as pd
|
5 | 5 | import pytest
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| 6 | +import unittest.mock as mock |
6 | 7 | from plotly.express._core import build_dataframe
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7 | 8 | from pandas.testing import assert_frame_equal
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8 | 9 |
|
@@ -233,17 +234,22 @@ def test_build_df_with_index():
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233 | 234 | assert_frame_equal(tips.reset_index()[out["data_frame"].columns], out["data_frame"])
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234 | 235 |
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235 | 236 |
|
236 |
| -def test_build_df_protocol(): |
237 |
| - import vaex |
| 237 | +def test_build_df_using_interchange_protocol_mock(): |
| 238 | + class CustomDataFrame: |
| 239 | + def __dataframe__(self): |
| 240 | + pass |
238 | 241 |
|
239 |
| - # take out the 'species' columns since there are still some issues with strings |
240 |
| - iris_pandas = px.data.iris()[["petal_width", "sepal_length"]] |
241 |
| - iris_vaex = vaex.from_pandas(iris_pandas) |
242 |
| - args = dict(data_frame=iris_vaex, x="petal_width", y="sepal_length") |
243 |
| - out = build_dataframe(args, go.Scatter) |
244 |
| - assert_frame_equal( |
245 |
| - iris_pandas.reset_index()[out["data_frame"].columns], out["data_frame"] |
246 |
| - ) |
| 242 | + input_dataframe = CustomDataFrame() |
| 243 | + args = dict(data_frame=input_dataframe, x="petal_width", y="sepal_length") |
| 244 | + |
| 245 | + iris_pandas = px.data.iris() |
| 246 | + |
| 247 | + with mock.patch("pandas.__version__", "2.0.2"): |
| 248 | + with mock.patch( |
| 249 | + "pandas.api.interchange.from_dataframe", return_value=iris_pandas |
| 250 | + ) as mock_from_dataframe: |
| 251 | + build_dataframe(args, go.Scatter) |
| 252 | + mock_from_dataframe.assert_called_once_with(input_dataframe) |
247 | 253 |
|
248 | 254 |
|
249 | 255 | def test_timezones():
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|
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