def setUp(self):
""" The test runner will execute this method prior to each test.
"""
self.case = Case.load(join(DATA_DIR, self.case_name,
self.case_name + ".pkl"))
self.case.sort_generators() # ext2int
self.opf = OPF(self.case, dc=False)
self.om = self.opf._construct_opf_model(self.case)
self.solver = PIPSSolver(self.om)
