def test_dummy_solver_interface(self):
solver = DummySolverInterface()
self.assertTrue(solver.available())
self.assertEqual(solver.solver_id().name(), "dummy")
self.assertIsInstance(solver, SolverInterface)
prog = mp.MathematicalProgram()
result = mp.MathematicalProgramResult()
with self.assertRaises(Exception) as context:
solver.Solve(prog, None, None, result)
self.assertTrue("Dummy solver cannot solve" in str(context.exception))
self.assertIsInstance(result, mp.MathematicalProgramResult)
self.assertTrue(solver.AreProgramAttributesSatisfied(prog))
def Solve(self,
prog,
initial_guess=None,
solver_options=None,
result=None):
# TODO(jwnimmer-tri) This trampoline for Solve is quite awkward.
if result is not None:
self._DoSolve(prog, initial_guess, solver_options, result)
return
else:
result = mp.MathematicalProgramResult()
self._DoSolve(prog, initial_guess, solver_options, result)
return result
def test_dummy_solver_interface(self):
solver = DummySolverInterface()
self.assertTrue(solver.available())
self.assertTrue(solver.enabled())
self.assertEqual(solver.solver_id().name(), "dummy")
self.assertIsInstance(solver, SolverInterface)
prog = mp.MathematicalProgram()
with self.assertRaisesRegex(Exception, "Dummy.*cannot solve"):
unused_result = mp.MathematicalProgramResult()
solver.Solve(prog, None, None, unused_result)
with self.assertRaisesRegex(Exception, "Dummy.*cannot solve"):
_ = solver.Solve(prog)
self.assertFalse(solver.AreProgramAttributesSatisfied(prog))
solver.can_solve = True
self.assertTrue(solver.AreProgramAttributesSatisfied(prog))
result = solver.Solve(prog)
self.assertIsInstance(result, mp.MathematicalProgramResult)
