Unit test compute_epoch()

[samarth9008]

There is a compute_epoch() in core/finance/prediction_processing.py (link) that is being used in compute_twap_vwap()

We need to add unit tests using synthetic test data. Create simple short input Series/Dataframe with pd.Timestamp index. Run the function on it and compare the outcome with string signature (for ref see tests in amp/helpers/test/test_hpandas.py e.g. Test_merge_dfs1)

Add 4 unit tests:

• 3 for each available unit value for a Series input
• 1 for any unit type but on a DataFrame input

See unit test doc to follow the code style

Assigning @samarth9008 to re-distribute

FYI @gpsaggese @DanilYachmenev

[aish-nidhi]

Added 3 unit tests for each available unit value for a Series input.
Tested the code. All 3 test cases passing.

Ran linter on the file.

[DanilYachmenev]

@aish-nidhi where is PR?

[aish-nidhi]

Just created one -PR SorrTask891