def testValidMaterialProvidedToTaskWithOneMaterial(self):
task = Task("task a", materials=["splitter"])
task.removeMaterial("splitter")
self.assertEqual(0, len(task.getMaterials()),
"checking number of materials")
def testValidMaterialProvidedToTaskWithMultipleMaterialsAndNoDuplicates(
self):
task = Task("task a", materials=["splitter", "coax"])
task.removeMaterial("splitter")
self.assertEqual(1, len(task.getMaterials()),
"checking number of materials")
self.assertTrue("coax" in task.getMaterials(),
"checking for material added")
def testValidMaterialProvidedToTaskWithNoMaterials(self):
task = Task("task a")
with self.assertRaises(ValueError):
task.removeMaterial("splitter")
def testValidMaterialProvidedToTaskWithMaterialsThatDoesNotContainTheMaterial(
self):
task = Task("task a", materials=["coax"])
with self.assertRaises(ValueError):
task.removeMaterial("splitter")
def testNoneMaterialProvided(self):
task = Task("task a")
with self.assertRaises(ValueError):
task.removeMaterial(None)
