Background

Junit 5 will no longer have an assertThat method. Junits own assertThat was deprecated in 4.13 so that developers transition away from it to for example the assertThat of Hamcrest.

For details see https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.13.md#pull-request-1150-deprecate-assertassertthat

Task

The task  is to replace all Junit4 assertThat with Hamcrest assertThat:

org.junit.Assert.assertThat --> org.hamcrest.MatcherAssert.assertThat