class OpcodeUnknown(unittest.TestCase):
def setUp(self):
intcode = [11145, 91, 85]
self.testComputer = IntcodeComputer(intcode)
self.referenceMessage = 'Uknown opcode encountered, 45 at position 0, exiting'
def tearDown(self):
self.testComputer = None
def test_takingStepUnknownOpcodePrintsMessage(self):
with patch('builtins.print') as p:
self.testComputer.takeStep()
p.assert_called_with('unknown opcode 45 encountered at position 0')
def test_takingStepUnknownOpcodeLogsMessage(self):
with patch('builtins.print') as p:
logMessage = self.testComputer.takeStep()
self.assertEqual(self.referenceMessage, logMessage)
def test_runningUnknownOpcodeStopsTheIntcodeComputer(self):
with patch('builtins.print') as p:
self.testComputer.run()
self.assertEqual(1, len(self.testComputer.log))
def test_runningUnkownOpcodeLogsTheMessage(self):
with patch('builtins.print') as p:
self.testComputer.run()
self.assertEqual(self.referenceMessage, self.testComputer.log[0])
def test_takingStepUpperBoundPassedChangesIntcode(self):
intcode = []
testComputer = IntcodeComputer(intcode)
message = testComputer.takeStep(25)
self.assertEqual(25,len(testComputer.intcode))
for i in range(0,25):
with self.subTest(intcodeIndex= i):
self.assertEqual(0,testComputer.intcode[i])
def test_takingStepOpcode2with_2_0_0_3ReturnsMessage(self):
intcode = [2,0,0,3]
testComputer = IntcodeComputer(intcode)
message = testComputer.takeStep()
self.assertEqual('opcode 2 at position 0 processed',message)
def test_takingStepOpcode2with_2_1_1_1ChangesIntcode(self):
intcode = [2,1,1,1]
testComputer = IntcodeComputer(intcode)
testComputer.takeStep()
self.assertEqual([2,1,1,1],testComputer.intcode)
def test_step22201_2_2_1IntcodeChanges(self):
intcode = [22201,2,2,1]
testComputer = IntcodeComputer(intcode)
testComputer.takeStep()
self.assertEqual([22201, 4, 2, 1], testComputer.intcode)
def test_takingStepOpcode1with_1_0_0_3ChangesIntcode(self):
intcode = [1, 0, 0, 3]
testComputer = IntcodeComputer(intcode)
testComputer.takeStep()
self.assertEqual([1,0,0,2],testComputer.intcode)
def test_takingStepUpperBoundPassedMessage(self):
intcode = []
testComputer = IntcodeComputer(intcode)
message = testComputer.takeStep(25)
self.assertEqual('position too high, expanding memory to 25', message)
def test_takingStepLowerBoundPassedMessage(self):
intcode = []
testComputer = IntcodeComputer(intcode)
message = testComputer.takeStep(-125)
self.assertEqual('position too low, -125, exiting', message)
def test_takingStepOpcode1with_1_1_1_1ReturnsMessage(self):
intcode = [1,1,1,1]
testComputer = IntcodeComputer(intcode)
message = testComputer.takeStep()
self.assertEqual('opcode 1 at position 0 processed',message)
def test_takingStep2202_0_0_3ChangesIntcode(self):
intcode = [2202,0,0,3]
testComputer = IntcodeComputer(intcode)
testComputer.takeStep()
self.assertEqual([2202,0,0,4848804],testComputer.intcode)
