def testValidMaterialProvidedToTaskWithNoMaterials(self):
task = Task("task a")
task.addMaterial("splitter")
self.assertEqual(1, len(task.getMaterials()), "checking number of materials")
self.assertTrue("splitter" in task.getMaterials(), "checking for material added")
def testValidMaterialProvidedToTaskWithSomeMaterials(self):
task = Task("task a", materials=["splitter"])
task.addMaterial("coax")
self.assertEqual(2, len(task.getMaterials()), "checking number of materials")
self.assertTrue("splitter" in task.getMaterials(), "checking for existing material")
self.assertTrue("coax" in task.getMaterials(), "checking for material added")
def testNoneMaterialProvided(self):
task = Task("task a")
with self.assertRaises(ValueError):
task.addMaterial(None)
