[TST] Fix for Issue #1184 (#1186)

* add fix for GH#1184

* changelog

* fix grammar

* clearer comments

* update changelog

Co-authored-by: Eric Ma <[email protected]>

Author: samukweku

CHANGELOG.md

@@ -33,6 +33,7 @@
 -   [TST] Compat with macos and window, to fix `FailedHealthCheck` Issue #1181 @Zeroto521
 -   [INF] Merge two docs CIs (`docs-preview.yml` and `docs.yml`) to one. And add `documentation` pytest mark. PR #1183 @Zeroto521
 -   [INF] Merge `codecov.yml` (only works for the dev branch pushing event) into `tests.yml` (only works for PR event). PR #1185 @Zeroto521
+-   [TST] Fix failure for test/timeseries/test_fill_missing_timestamp. Issue #1184 @samukweku
 -   [BUG] Import `DataDescription` to fix: `AttributeError: 'DataFrame' object has no attribute 'data_description'`. PR #1191 @Zeroto521
 
 ## [v0.23.1] - 2022-05-03

tests/timeseries/test_fill_missing_timestamps.py

@@ -26,7 +26,16 @@ def test_fill_missing_timestamps(timeseries_dataframe):
     df1 = timeseries_dataframe.drop(timeseries_dataframe.index[random_number])
 
     # Fill missing timestamps
-    result = fill_missing_timestamps(df1, frequency="1H")
+    # fix for GH#1184 is to use the start and end from
+    # timeseries_dataframe
+    # imagine that the last row of df1 is removed, or the first entry
+    # the length check in the assert line will fail
+    result = fill_missing_timestamps(
+        df1,
+        frequency="1H",
+        first_time_stamp=timeseries_dataframe.index.min(),
+        last_time_stamp=timeseries_dataframe.index.max(),
+    )
 
     # Testing if the missing timestamp has been filled
     assert len(result) == len(timeseries_dataframe)