# [Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/3820?src=pr&el=h1) Report > Merging > [#3820](https://codecov.io/gh/apache/incubator-airflow/pull/3820?src=pr&el=desc) > into > [master](https://codecov.io/gh/apache/incubator-airflow/commit/82454477c57699ece5c6515ce85b7df0c0583571?src=pr&el=desc) > will **decrease** coverage by `<.01%`. > The diff coverage is `n/a`.
[](https://codecov.io/gh/apache/incubator-airflow/pull/3820?src=pr&el=tree) ```diff @@ Coverage Diff @@ ## master #3820 +/- ## ========================================== - Coverage 77.43% 77.43% -0.01% ========================================== Files 203 203 Lines 15840 15840 ========================================== - Hits 12266 12265 -1 - Misses 3574 3575 +1 ``` | [Impacted Files](https://codecov.io/gh/apache/incubator-airflow/pull/3820?src=pr&el=tree) | Coverage Δ | | |---|---|---| | [airflow/sensors/s3\_key\_sensor.py](https://codecov.io/gh/apache/incubator-airflow/pull/3820/diff?src=pr&el=tree#diff-YWlyZmxvdy9zZW5zb3JzL3MzX2tleV9zZW5zb3IucHk=) | `30.3% <ø> (ø)` | :arrow_up: | | [airflow/sensors/s3\_prefix\_sensor.py](https://codecov.io/gh/apache/incubator-airflow/pull/3820/diff?src=pr&el=tree#diff-YWlyZmxvdy9zZW5zb3JzL3MzX3ByZWZpeF9zZW5zb3IucHk=) | `0% <ø> (ø)` | :arrow_up: | | [airflow/operators/s3\_file\_transform\_operator.py](https://codecov.io/gh/apache/incubator-airflow/pull/3820/diff?src=pr&el=tree#diff-YWlyZmxvdy9vcGVyYXRvcnMvczNfZmlsZV90cmFuc2Zvcm1fb3BlcmF0b3IucHk=) | `93.87% <ø> (ø)` | :arrow_up: | | [airflow/models.py](https://codecov.io/gh/apache/incubator-airflow/pull/3820/diff?src=pr&el=tree#diff-YWlyZmxvdy9tb2RlbHMucHk=) | `88.72% <ø> (-0.05%)` | :arrow_down: | ------ [Continue to review full report at Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/3820?src=pr&el=continue). > **Legend** - [Click here to learn > more](https://docs.codecov.io/docs/codecov-delta) > `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data` > Powered by > [Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/3820?src=pr&el=footer). > Last update > [8245447...583f2b7](https://codecov.io/gh/apache/incubator-airflow/pull/3820?src=pr&el=lastupdated). > Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments). [ Full content available at: https://github.com/apache/incubator-airflow/pull/3820 ] This message was relayed via gitbox.apache.org for [email protected]
