TST: add a test with freq=1MS to increase coverage of shift #54211
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@MarcoGorelli, , could you please take a look at this pr? |
MarcoGorelli
added
Datetime
MarcoGorelli
approved these changes
Jul 21, 2023
| shifted = df.shift(freq="1MS") | ||
| expected = DataFrame( | ||
| {"x": [1, 2, 3]}, | ||
| index=date_range(start="02/01/2000", end="02/01/2000", periods=3), |
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this is fine here, but in the future, I'd suggest using 2000-02-01 format, it's less ambiguous, whereas 02/01/2000 means different things in different parts of the world
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Thank you, I will use 2000-02-01 format.
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xref #52064
Added a test with
freq=1MSto increase coverage ofshift. The reason: existing tests don't cover a case if the index of a DataFrame is aDatetimeIndex.