# [Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/4020?src=pr&el=h1) Report > Merging > [#4020](https://codecov.io/gh/apache/incubator-airflow/pull/4020?src=pr&el=desc) > into > [master](https://codecov.io/gh/apache/incubator-airflow/commit/683dc19fe36afc0f653bdd1d10a08918d48be335?src=pr&el=desc) > will **increase** coverage by `<.01%`. > The diff coverage is `n/a`.
[](https://codecov.io/gh/apache/incubator-airflow/pull/4020?src=pr&el=tree) ```diff @@ Coverage Diff @@ ## master #4020 +/- ## ========================================== + Coverage 75.76% 75.77% +<.01% ========================================== Files 199 199 Lines 15946 15946 ========================================== + Hits 12082 12083 +1 + Misses 3864 3863 -1 ``` | [Impacted Files](https://codecov.io/gh/apache/incubator-airflow/pull/4020?src=pr&el=tree) | Coverage Δ | | |---|---|---| | [airflow/models.py](https://codecov.io/gh/apache/incubator-airflow/pull/4020/diff?src=pr&el=tree#diff-YWlyZmxvdy9tb2RlbHMucHk=) | `91.71% <0%> (+0.04%)` | :arrow_up: | ------ [Continue to review full report at Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/4020?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/4020?src=pr&el=footer). > Last update > [683dc19...7d5c849](https://codecov.io/gh/apache/incubator-airflow/pull/4020?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/4020 ] This message was relayed via gitbox.apache.org for devnull@infra.apache.org