def test_shouldRaiseExceptionWhenAnMovementCommandIsNotValid(self, capsys):
# Given
filePath = 'somePathToFile/file.txt'
mockedFileContent = '5 5\n3 3 E\nMMRXMRMRRM\n2 2 N\nMRMLM\n1 1 N\nM'
parser = Parser()
# Then
with pytest.raises(ValueError,
match="'X' is not a valid MovementCommand"):
with patch('builtins.open',
mock_open(read_data=mockedFileContent)):
parser.parseFile(filePath)
def test_shouldRaiseExceptionWhenPlateauDimensionsAreNotExactlyTwo(self):
# Given
filePath = 'somePathToFile/file.txt'
mockedFileContent = 'hjhkjj\n3 3 E\nMMRMMRMRRM'
parser = Parser()
# Then
with pytest.raises(ParsingError, match='Invalid plateau dimensions'):
with patch('builtins.open',
mock_open(read_data=mockedFileContent)):
parser.parseFile(filePath)
def test_shouldRaiseExceptionWhenInitialPositionIsNotValid(self, capsys):
# Given
filePath = 'somePathToFile/file.txt'
mockedFileContent = '5 5\n3 s E\nMMRMMRMRRM\n2 2 N\nMRMLM\n1 1 N\nM'
parser = Parser()
# Then
with pytest.raises(ParsingError,
match='Invalid rover initial position'):
with patch('builtins.open',
mock_open(read_data=mockedFileContent)):
parser.parseFile(filePath)
def test_shouldParseAValidSetOfInstructions(self):
# Given
filePath = 'somePathToFile/file.txt'
mockedFileContent = '5 5\n3 3 E\nMMR\n2 2 N\nRMLM'
parser = Parser()
plateau = Plateau(5, 5)
movementCommands1 = [
MovementCommand('M'),
MovementCommand('M'),
MovementCommand('R')
]
movementCommands2 = [
MovementCommand('R'),
MovementCommand('M'),
MovementCommand('L'),
MovementCommand('M')
]
roverInstruction1 = RoverInstruction(
RoverPosition(3, 3, Orientation('E')), movementCommands1)
roverInstruction2 = RoverInstruction(
RoverPosition(2, 2, Orientation('N')), movementCommands2)
expectedSetOfInstructions = SetOfInstructions(
plateau, [roverInstruction1, roverInstruction2])
# When
with patch('builtins.open', mock_open(read_data=mockedFileContent)):
result = parser.parseFile(filePath)
# Then
assert result.toString() == expectedSetOfInstructions.toString()
def processFile(self, filePath: str, parser: Parser):
try:
setOfInstructions = parser.parseFile(filePath)
for instruction in setOfInstructions.roverInstructions:
rover = Rover(setOfInstructions.plateau,
instruction.initialPosition)
rover.processCommands(instruction.movementCommands)
print(rover.currentPosition.toString())
except ParsingError as error:
print(error)
except ValueError as error:
print(error)