test: migrate DeleteTest to JUnit 5

[MartinWitt]

#3919

Change Log

The following bad smells are refactored:

JUnit4-@test

The JUnit 4 @Test annotation should be replaced with JUnit 5 @Test annotation.

JUnit4Assertion

The JUnit4 assertion should be replaced with JUnit5 Assertions.

The following has changed in the code:

JUnit4-@test

• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteAStatementInAnonymousExecutable
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteAStatementInStaticAnonymousExecutable
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteAStatementInConstructor
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteAStatementInMethod
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteReturn
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteStatementInCase
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteACaseOfASwitch
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteMethod
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteParameterOfMethod
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteBodyOfAMethod
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteAnnotationOnAClass
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteAClassTopLevel
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteConditionInACondition
• Replaced junit 4 test annotation with junit 5 test annotation in testDeleteChainOfAssignment

JUnit4Assertion

• Transformed junit4 assert to junit 5 assertion in testDeleteAStatementInAnonymousExecutable
• Transformed junit4 assert to junit 5 assertion in testDeleteAStatementInStaticAnonymousExecutable
• Transformed junit4 assert to junit 5 assertion in testDeleteAStatementInConstructor
• Transformed junit4 assert to junit 5 assertion in testDeleteAStatementInMethod
• Transformed junit4 assert to junit 5 assertion in testDeleteReturn
• Transformed junit4 assert to junit 5 assertion in testDeleteStatementInCase
• Transformed junit4 assert to junit 5 assertion in testDeleteACaseOfASwitch
• Transformed junit4 assert to junit 5 assertion in testDeleteMethod
• Transformed junit4 assert to junit 5 assertion in testDeleteParameterOfMethod
• Transformed junit4 assert to junit 5 assertion in testDeleteBodyOfAMethod
• Transformed junit4 assert to junit 5 assertion in testDeleteAnnotationOnAClass
• Transformed junit4 assert to junit 5 assertion in testDeleteAClassTopLevel
• Transformed junit4 assert to junit 5 assertion in testDeleteConditionInACondition
• Transformed junit4 assert to junit 5 assertion in testDeleteChainOfAssignment