TST: Test coverage for Excel Formatter.py #61741
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simonjayhawkins
added
Testing
mroeschke
reviewed
Jun 30, 2025
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| breaking_row_count = 2**20 + 1 | ||
| breaking_col_count = 2**14 + 1 | ||
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| # Test for too many rows | ||
| row_df = DataFrame(np.zeros(shape=(breaking_row_count, 1))) |
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This there a way to test this without actually allocating such a large array
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Otherwise, I'd prefer not to include this test this case due to the large memory allocation
mroeschke
requested changes
Jun 30, 2025
| df = DataFrame({"A": [1, 2], "B": [3, 4]}) | ||
| msg = "Not all names specified in 'columns' are found" | ||
| with pytest.raises(KeyError, match=msg): | ||
| ExcelFormatter(df, cols=columns) |
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Generally, could you write tests that exercise to_excel instead of ExcelFormatter and its private methods instead?
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That makes a lot of sense.
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✅ Tests added and passed if fixing a bug or adding a new feature
✅ All code checks passed.
Added tests to the ExcelFormatter class, which gets the file up to 93% test coverage in total. The only exception is the
.writefunction, (otherwise writing to excel in the first place is not tested) but is already most definitely covered, but should be tested further.Leo