def setUp(self):
self.memory = Memory()
def setUp(self):
self.memory = Memory()
class TestMemory(TestCase):
def setUp(self):
self.memory = Memory()
def test_write(self):
'Write a byte to memory then read it.'
self.memory.write_byte(ADDRESS, 0x01)
self.assertEqual(0x01, self.memory.read_byte(ADDRESS))
def test_write_must_receive_byte(self):
self.assertRaises(ValueError, self.memory.write_byte, ADDRESS, 0x100)
def test_load_must_receive_list_of_bytes(self):
self.assertRaises(ValueError, self.memory.load, ADDRESS, [0x100])
def test_load(self):
'Load a stream of bytes to memory starting on an address.'
self.memory.load(ADDRESS, [0x01, 0x02, 0x03])
self.assertEqual(0x01, self.memory.read_byte(ADDRESS))
self.assertEqual(0x02, self.memory.read_byte(ADDRESS + 1))
self.assertEqual(0x03, self.memory.read_byte(ADDRESS + 2))
def test_read_word(self):
self.memory.load(ADDRESS, [0x01, 0x02])
self.assertEqual(0x0102, self.memory.read_word(ADDRESS))
def test_read(self):
self.memory.load(ADDRESS, [0x01, 0x02])
self.assertSequenceEqual([0x01, 0x02], self.memory.read(ADDRESS, 2))
def test_font_sprites(self):
'Chip8 has 16 preset sprites corresponding from 0 to F.'
in_memory = self.memory.read(FONT_ADDRESS, len(FONT_SPRITES))
self.assertSequenceEqual(FONT_SPRITES, in_memory)
def test_font_address(self):
self.assertEqual(FONT_ADDRESS, self.memory.font_address(0))
def test_font(self):
sprite = [0xF0, 0x90, 0x90, 0x90, 0xF0] # 0
self.assertSequenceEqual(sprite, self.memory.font(0))
class TestMemory(TestCase):
def setUp(self):
self.memory = Memory()
def test_write(self):
'Write a byte to memory then read it.'
self.memory.write_byte(ADDRESS, 0x01)
self.assertEqual(0x01, self.memory.read_byte(ADDRESS))
def test_write_must_receive_byte(self):
self.assertRaises(ValueError,
self.memory.write_byte, ADDRESS, 0x100)
def test_load_must_receive_list_of_bytes(self):
self.assertRaises(ValueError,
self.memory.load, ADDRESS, [0x100])
def test_load(self):
'Load a stream of bytes to memory starting on an address.'
self.memory.load(ADDRESS, [0x01, 0x02, 0x03])
self.assertEqual(0x01, self.memory.read_byte(ADDRESS))
self.assertEqual(0x02, self.memory.read_byte(ADDRESS + 1))
self.assertEqual(0x03, self.memory.read_byte(ADDRESS + 2))
def test_read_word(self):
self.memory.load(ADDRESS, [0x01, 0x02])
self.assertEqual(0x0102, self.memory.read_word(ADDRESS))
def test_read(self):
self.memory.load(ADDRESS, [0x01, 0x02])
self.assertSequenceEqual([0x01, 0x02], self.memory.read(ADDRESS, 2))
def test_font_sprites(self):
'Chip8 has 16 preset sprites corresponding from 0 to F.'
in_memory = self.memory.read(FONT_ADDRESS, len(FONT_SPRITES))
self.assertSequenceEqual(FONT_SPRITES, in_memory)
def test_font_address(self):
self.assertEqual(FONT_ADDRESS, self.memory.font_address(0))
def test_font(self):
sprite = [0xF0, 0x90, 0x90, 0x90, 0xF0] # 0
self.assertSequenceEqual(sprite, self.memory.font(0))
