test: migrate ParentTest to JUnit 5

[MartinWitt]

#3919

Change Log

The following bad smells are refactored:

Junit4-@before

The JUnit 4 @Before annotation should be replaced with JUnit 5 @BeforeEach annotation.

Junit4-@ignore

The JUnit 4 @Ignore annotation should be replaced with JUnit 5 @Disabled annotation.

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 testParent
• Replaced junit 4 test annotation with junit 5 test annotation in testParentSet
• Replaced junit 4 test annotation with junit 5 test annotation in testAddType
• Replaced junit 4 test annotation with junit 5 test annotation in testParentOfCtPackageReference
• Replaced junit 4 test annotation with junit 5 test annotation in testParentOfCtVariableReference
• Replaced junit 4 test annotation with junit 5 test annotation in testParentOfCtExecutableReference
• Replaced junit 4 test annotation with junit 5 test annotation in testParentOfGenericInTypeReference
• Replaced junit 4 test annotation with junit 5 test annotation in testParentOfPrimitiveReference
• Replaced junit 4 test annotation with junit 5 test annotation in testGetParentWithFilter
• Replaced junit 4 test annotation with junit 5 test annotation in testHasParent
• Replaced junit 4 test annotation with junit 5 test annotation in testParentSetInSetter
• Replaced junit 4 test annotation with junit 5 test annotation in testParentNotInitializedException
• Replaced junit 4 test annotation with junit 5 test annotation in testGetParentOverloadsInNoParentElements
• Replaced junit 4 test annotation with junit 5 test annotation in testGetParentOverloadsWithNoMatchingElements

Junit4-@ignore

• Replaced @Ignore annotation with @Disabled at method testParentSetInSetter

Junit4-@before

• Replaced @Before annotation with @BeforeEach at method setup

JUnit4Assertion

• Transformed junit4 assert to junit 5 assertion in testParent
• Transformed junit4 assert to junit 5 assertion in testParentSet
• Transformed junit4 assert to junit 5 assertion in testAddType
• Transformed junit4 assert to junit 5 assertion in testParentOfCtPackageReference
• Transformed junit4 assert to junit 5 assertion in testParentOfCtVariableReference
• Transformed junit4 assert to junit 5 assertion in testParentOfCtExecutableReference
• Transformed junit4 assert to junit 5 assertion in testParentOfGenericInTypeReference
• Transformed junit4 assert to junit 5 assertion in testParentOfPrimitiveReference
• Transformed junit4 assert to junit 5 assertion in testGetParentWithFilter
• Transformed junit4 assert to junit 5 assertion in testHasParent
• Transformed junit4 assert to junit 5 assertion in checkAddStrategy
• Transformed junit4 assert to junit 5 assertion in checkSetStrategy
• Transformed junit4 assert to junit 5 assertion in testGetParentOverloadsInNoParentElements
• Transformed junit4 assert to junit 5 assertion in testGetParentOverloadsWithNoMatchingElements