def test_make_interface_noop():
"""
:py:func:`luma.core.cmdline.make_interface.noop` returns an ``noop` instance.
"""
class opts:
interface = 'noop'
factory = cmdline.make_interface(opts)
assert 'luma.core.interface.serial.noop' in repr(factory.noop())
def test_ensure_cmdline_opt_contains_all_interfaces():
"""
Checks that the cmdline make_interface factory contains initializers for all interface classes
"""
class opts:
pass
factory = cmdline.make_interface(opts)
for interface in cmdline.get_interface_types():
assert hasattr(factory, interface)
def test_make_interface_ftdi_i2c(mock_controller):
"""
:py:func:`luma.core.cmdline.make_interface.ftdi_i2c` returns an I2C instance.
"""
class opts:
ftdi_device = 'ftdi://dummy'
i2c_port = 200
i2c_address = 0x710
factory = cmdline.make_interface(opts)
assert 'luma.core.interface.serial.i2c' in repr(factory.ftdi_i2c())
def test_make_interface_ftdi_spi(mock_controller):
"""
:py:func:`luma.core.cmdline.make_interface.ftdi_spi` returns an SPI instance.
"""
class opts(test_spi_opts):
ftdi_device = 'ftdi://dummy'
gpio_data_command = 5
gpio_reset = 6
gpio_backlight = 7
factory = cmdline.make_interface(opts)
assert 'luma.core.interface.serial.spi' in repr(factory.ftdi_spi())
def test_make_interface_bitbang():
"""
:py:func:`luma.core.cmdline.make_interface.bitbang` returns an BitBang instance.
"""
try:
factory = cmdline.make_interface(test_spi_opts)
assert 'luma.core.interface.serial.bitbang' in repr(factory.bitbang())
except ImportError:
# non-rpi platform, e.g. macos
pytest.skip(rpi_gpio_missing)
except error.UnsupportedPlatform as e:
# non-rpi platform, e.g. ubuntu 64-bit
skip_unsupported_platform(e)
def test_make_interface_pcf8574():
"""
:py:func:`luma.core.cmdline.make_interface.pcf8574` returns an pcf8574 instance.
"""
class opts:
i2c_port = 200
i2c_address = 0x710
path_name = f'/dev/i2c-{opts.i2c_port}'
fake_open = i2c_error(path_name, errno.ENOENT)
factory = cmdline.make_interface(opts)
with patch('os.open', fake_open):
with pytest.raises(error.DeviceNotFoundError):
factory.pcf8574()
def test_make_interface_bitbang_6800():
"""
:py:func:`luma.core.cmdline.make_interface.bitbang_6800` returns a Bitbang-6800 instance.
"""
class opts:
pass
try:
factory = cmdline.make_interface(opts)
assert 'luma.core.interface.parallel.bitbang_6800' in repr(factory.bitbang_6800())
except ImportError:
# non-rpi platform, e.g. macos
pytest.skip(rpi_gpio_missing)
except error.UnsupportedPlatform as e:
# non-rpi platform, e.g. ubuntu 64-bit
skip_unsupported_platform(e)
def test_make_interface_gpio_cs_spi():
"""
:py:func:`luma.core.cmdline.make_interface.gpio_cs_spi` returns an gpio_cs_spi instance.
"""
class opts(test_spi_opts):
interface = 'gpio_cs_spi'
spi_cs_high = True
gpio_chip_select = 4
try:
factory = cmdline.make_interface(opts)
assert 'luma.core.interface.serial.spi' in repr(factory.gpio_cs_spi())
except ImportError:
# non-rpi platform, e.g. macos
pytest.skip(rpi_gpio_missing)
except error.UnsupportedPlatform as e:
# non-rpi platform, e.g. ubuntu 64-bit
skip_unsupported_platform(e)
def test_make_interface_bitbang_6800_alt_gpio():
"""
:py:func:`luma.core.cmdline.make_interface.bitbang_6800` returns an Bitbang-6800 instance
when using an alternative GPIO implementation.
"""
class opts():
gpio = 'fake_gpio'
with patch.dict('sys.modules', **{
'fake_gpio': Mock(unsafe=True)
}):
try:
factory = cmdline.make_interface(opts)
assert 'luma.core.interface.parallel.bitbang_6800' in repr(factory.bitbang_6800())
except ImportError:
pytest.skip(spidev_missing)
except error.DeviceNotFoundError as e:
# non-rpi platform, e.g. ubuntu 64-bit
skip_unsupported_platform(e)
