Class StructureTestCase

                        unittest.TestCase --+    
                                            |    
custom_assertions.StructureAssertionsTestCase --+
                                                |
                                               StructureTestCase

A unit test class that reads in a structure. This class will only read the structure from disk once (to save time), but will create a new copy of the structure object for each test (to avoid test-test interactions).

The subclass must define the file to read in as class variable STRUCTURE_FILE, and each test will then have access to the structure as self.struc. The setUp() function in any subclass must call super().setUp.