def test_write(offset, length, serial_outs):
# prepare
serial = FakeSerial()
fpga = TinyFPGAB(serial)
fpga.write_enable = lambda: None # patch write_enable
fpga.wait_while_busy = lambda: None # patch wait_while_busy
data = DATA[:length]
# run
assert fpga.write(offset, data) is None
# check
assert not serial.read_data
serial.assert_written([d.decode('hex') for d in serial_outs])
def test_write(offset, length, serial_outs):
# prepare
serial = FakeSerial()
fpga = TinyFPGAB(serial)
fpga.write_enable = lambda: None # patch write_enable
fpga.wait_while_busy = lambda: None # patch wait_while_busy
data = DATA[:length]
# run
assert fpga.write(offset, data) is None
# check
assert not serial.read_data
serial.assert_written([bytearray.fromhex(d) for d in serial_outs])
def test_write(offset, length, serial_outs):
# prepare
serial = FakeSerial()
fpga = TinyFPGAB(serial)
fpga.write_enable = lambda: None # patch write_enable
fpga.wait_while_busy = lambda: None # patch wait_while_busy
data = DATA[:length]
# run
assert fpga.write(offset, data) is None
# check
assert not serial.read_data
prueba = [bytes.fromhex(d) for d in serial_outs]
print("Creado: {}".format(prueba))
serial.assert_written(prueba)
def test_erase(offset, length, block_len, serial_outs):
# prepare
calls = []
serial = FakeSerial()
fpga = TinyFPGAB(serial)
fpga.write_enable = lambda: None # patch write_enable
fpga.wait_while_busy = lambda: None # patch wait_while_busy
fpga.read = lambda *a: calls.append(('read', a)) \
or DATA_4096[a[0] % 4096:][:a[1]]
fpga.write = lambda *a: calls.append(('write', a))
# run
assert fpga.erase(offset, length) is None
# check
assert not serial.read_data
serial.assert_written([d.decode('hex') for d in serial_outs])
expected_calls = []
restore_first_block = None
if offset % block_len > 0: # restore start of first block
restore_offset = offset & ~(block_len - 1)
restore_len = offset % block_len
expected_calls.append(('read', (restore_offset, restore_len)))
expected_calls.append(
('write', (restore_offset, DATA_4096[:restore_len])))
restore_first_block = restore_offset
if (offset + length) % block_len > 0: # restore end of last block
restore_offset = offset + length
restore_len = block_len - (restore_offset % block_len)
read_call = ('read', (restore_offset, restore_len))
if restore_first_block == ((offset + length) & ~(block_len - 1)):
# restore before and after erase in same block
expected_calls.insert(1, read_call) # 2nd read before 1st write
else:
expected_calls.append(read_call) # 2nd read after 1st write
expected_calls.append(
('write', (restore_offset,
DATA_4096[restore_offset % block_len:])))
assert calls == expected_calls
def test_erase(offset, length, block_len, serial_outs):
# prepare
calls = []
serial = FakeSerial()
fpga = TinyFPGAB(serial)
fpga.write_enable = lambda: None # patch write_enable
fpga.wait_while_busy = lambda: None # patch wait_while_busy
fpga.read = lambda *a: calls.append(('read', a)) \
or DATA_4096[a[0] % 4096:][:a[1]]
fpga.write = lambda *a: calls.append(('write', a))
# run
assert fpga.erase(offset, length) is None
# check
assert not serial.read_data
serial.assert_written([bytearray.fromhex(d) for d in serial_outs])
expected_calls = []
restore_first_block = None
if offset % block_len > 0: # restore start of first block
restore_offset = offset & ~(block_len - 1)
restore_len = offset % block_len
expected_calls.append((
'read', (restore_offset, restore_len)))
expected_calls.append((
'write', (restore_offset, DATA_4096[:restore_len])))
restore_first_block = restore_offset
if (offset + length) % block_len > 0: # restore end of last block
restore_offset = offset + length
restore_len = block_len - (restore_offset % block_len)
read_call = ('read', (restore_offset, restore_len))
if restore_first_block == ((offset + length) & ~(block_len - 1)):
# restore before and after erase in same block
expected_calls.insert(1, read_call) # 2nd read before 1st write
else:
expected_calls.append(read_call) # 2nd read after 1st write
expected_calls.append((
'write', (restore_offset, DATA_4096[restore_offset % block_len:])))
assert calls == expected_calls