Improved execution of grouped assertions

[eas5]

Problem:
A test method with many individual assertions stops being executed on the first failed assertion, which prevents the remaining ones' execution.

Solution:
Using the soft assertions feature, all assertions are executed, and all failures will be reported together. In this refactoring, no original assertion was changed.

Result:
Before:

assertThat(app.getManagementUrl()).isEqualTo("http://application/Uppercase/actuator");
assertThat(app.getHealthUrl()).isEqualTo("http://application/Uppercase/actuator/health");
assertThat(app.getServiceUrl()).isEqualTo("http://application/Uppercase/");

After:

SoftAssertions softly = new SoftAssertions();
softly.assertThat(app.getManagementUrl()).isEqualTo("http://application/Uppercase/actuator");
softly.assertThat(app.getHealthUrl()).isEqualTo("http://application/Uppercase/actuator/health");
softly.assertThat(app.getServiceUrl()).isEqualTo("http://application/Uppercase/");
softly.assertAll();

[erikpetzold]

Hi @eas5 , thanks for your contribution. As you may have seen in the build result, we want to use only assertj assertions to have consistency across all tests.
The equivalent to your changes would be SoftAssertions.assertSoftly: https://assertj.github.io/doc/#assertj-core-assertSoftly-assertions

[eas5]

Hi @erikpetzold! Thank you for your instruction. I have changed my proposal to use Assertj's SoftAssertions.

[ccoltx]

Hi @eas5, thank you for your contribution.