Consider the following folder/test structure in a project "MyProject":
- "Folder1"
   - "MyCodedTest"
- "Folder2"
   - "MyCodedTest"

These tests cannot be compiled because Test Studio generates equal namespace.class: MyProject.MyCodedTest. This leads to the compile error "The namespace 'MyProject' already contains a definition for 'MyCodedTest' so the user has to change the class name in order to compile.

This scenario can be solved the VS way: adding the folder to the namespace so that we get the following namespace.tests:
MyProject.Folder1.MyCodedTest
MyProject.Folder2.MyCodedTest

This will let the compiler pass without errors.