# [Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/4018?src=pr&el=h1) Report > Merging > [#4018](https://codecov.io/gh/apache/incubator-airflow/pull/4018?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 `100%`.
[](https://codecov.io/gh/apache/incubator-airflow/pull/4018?src=pr&el=tree) ```diff @@ Coverage Diff @@ ## master #4018 +/- ## ========================================== + Coverage 75.76% 75.77% +<.01% ========================================== Files 199 199 Lines 15946 15948 +2 ========================================== + Hits 12082 12084 +2 Misses 3864 3864 ``` | [Impacted Files](https://codecov.io/gh/apache/incubator-airflow/pull/4018?src=pr&el=tree) | Coverage Δ | | |---|---|---| | [airflow/hooks/druid\_hook.py](https://codecov.io/gh/apache/incubator-airflow/pull/4018/diff?src=pr&el=tree#diff-YWlyZmxvdy9ob29rcy9kcnVpZF9ob29rLnB5) | `88% <100%> (+0.32%)` | :arrow_up: | ------ [Continue to review full report at Codecov](https://codecov.io/gh/apache/incubator-airflow/pull/4018?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/4018?src=pr&el=footer). > Last update > [683dc19...3c412bc](https://codecov.io/gh/apache/incubator-airflow/pull/4018?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/4018 ] This message was relayed via gitbox.apache.org for [email protected]
