def test_display_should_draw_text_as_non_frame(mocker):
device = DummyDevice()
display = Display(device)
mocker.spy(display, 'draw')
display.text('Hello World')
args, kw = display.draw.call_args
assert isinstance(args[0], Image.Image)
assert not kw['frame']
def test_display_should_draw_image_as_key_frame(mocker):
device = DummyDevice()
mocker.spy(device, 'display')
display = Display(device)
im1 = Image.new(device.mode, device.size, color='red')
display.draw(im1, True, True)
im2 = device.display.call_args[0][0]
assert display.frame.tobytes() == im2.tobytes()
assert display.key_frame.tobytes() == im2.tobytes()
def test_display_should_filter_image(mocker):
device = DummyDevice(3, 3)
mocker.spy(device, 'display')
display = Display(device)
im1 = Image.new(device.mode, device.size, color='red')
im1.putpixel((1, 1), 0)
display.filter = ImageFilter.GaussianBlur(9)
display.draw(im1, True, False)
im2 = device.display.call_args[0][0]
assert im1.tobytes() != im2.tobytes()
def test_display_should_draw_image_without_frame_buffering(mocker):
device = DummyDevice(16, 16)
mocker.spy(device, 'display')
display = Display(device)
im1 = Image.new(device.mode, (32, 32), color='red')
display.draw(im1, False, False)
im2 = device.display.call_args[0][0]
assert im2.size == (16, 16)
assert display.frame.tobytes() != im2.tobytes()
assert display.key_frame.tobytes() != im2.tobytes()
def test_display_should_initialize_with_empty_frames():
display = Display(DummyDevice(16, 16))
assert display.frame.size == (16, 16)
assert display.key_frame.size == (16, 16)
def test_display_should_initialize_with_true_type_font():
display = Display(DummyDevice())
assert display.font.path == opt.options['font_file']