assertEquals(Compatibility.PATCH, someKey4a.getCompatibility(someKey1));
assertEquals(Compatibility.PATCH, someKey1.getCompatibility(someKey4a));
assertEquals(Compatibility.MAJOR, someKey5.getCompatibility(someKey1));
assertEquals(Compatibility.MAJOR, someKey6.getCompatibility(someKey1));
assertEquals(Compatibility.PATCH, someKey4a.getCompatibility(someKey1));
assertEquals(Compatibility.PATCH, someKey1.getCompatibility(someKey4a));
assertEquals(Compatibility.MAJOR, someKey5.getCompatibility(someKey1));
assertEquals(Compatibility.MAJOR, someKey6.getCompatibility(someKey1));