142 lines
4.6 KiB
Python
142 lines
4.6 KiB
Python
#!/usr/bin/env python
|
|
""" Image function tests- Check that image print commands are sent correctly.
|
|
|
|
:author: `Michael Billington <michael.billington@gmail.com>`_
|
|
:organization: `python-escpos <https://github.com/python-escpos>`_
|
|
:copyright: Copyright (c) 2016 `Michael Billington <michael.billington@gmail.com>`_
|
|
:license: MIT
|
|
"""
|
|
|
|
from __future__ import absolute_import
|
|
from __future__ import division
|
|
from __future__ import print_function
|
|
from __future__ import unicode_literals
|
|
|
|
import escpos.printer as printer
|
|
from PIL import Image
|
|
|
|
|
|
# Raster format print
|
|
def test_bit_image_black():
|
|
"""
|
|
Test printing solid black bit image (raster)
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/canvas_black.png', impl="bitImageRaster")
|
|
assert(instance.output == b'\x1dv0\x00\x01\x00\x01\x00\x80')
|
|
# Same thing w/ object created on the fly, rather than a filename
|
|
instance = printer.Dummy()
|
|
im = Image.new("RGB", (1, 1), (0, 0, 0))
|
|
instance.image(im, impl="bitImageRaster")
|
|
assert(instance.output == b'\x1dv0\x00\x01\x00\x01\x00\x80')
|
|
|
|
|
|
def test_bit_image_white():
|
|
"""
|
|
Test printing solid white bit image (raster)
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/canvas_white.png', impl="bitImageRaster")
|
|
assert(instance.output == b'\x1dv0\x00\x01\x00\x01\x00\x00')
|
|
|
|
|
|
def test_bit_image_both():
|
|
"""
|
|
Test printing black/white bit image (raster)
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/black_white.png', impl="bitImageRaster")
|
|
assert(instance.output == b'\x1dv0\x00\x01\x00\x02\x00\xc0\x00')
|
|
|
|
|
|
def test_bit_image_transparent():
|
|
"""
|
|
Test printing black/transparent bit image (raster)
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/black_transparent.png', impl="bitImageRaster")
|
|
assert(instance.output == b'\x1dv0\x00\x01\x00\x02\x00\xc0\x00')
|
|
|
|
|
|
# Column format print
|
|
def test_bit_image_colfmt_black():
|
|
"""
|
|
Test printing solid black bit image (column format)
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/canvas_black.png', impl="bitImageColumn")
|
|
assert(instance.output == b'\x1b3\x10\x1b*!\x01\x00\x80\x00\x00\x0a\x1b2')
|
|
|
|
|
|
def test_bit_image_colfmt_white():
|
|
"""
|
|
Test printing solid white bit image (column format)
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/canvas_white.png', impl="bitImageColumn")
|
|
assert(instance.output == b'\x1b3\x10\x1b*!\x01\x00\x00\x00\x00\x0a\x1b2')
|
|
|
|
|
|
def test_bit_image_colfmt_both():
|
|
"""
|
|
Test printing black/white bit image (column format)
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/black_white.png', impl="bitImageColumn")
|
|
assert(instance.output == b'\x1b3\x10\x1b*!\x02\x00\x80\x00\x00\x80\x00\x00\x0a\x1b2')
|
|
|
|
|
|
def test_bit_image_colfmt_transparent():
|
|
"""
|
|
Test printing black/transparent bit image (column format)
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/black_transparent.png', impl="bitImageColumn")
|
|
assert(instance.output == b'\x1b3\x10\x1b*!\x02\x00\x80\x00\x00\x80\x00\x00\x0a\x1b2')
|
|
|
|
|
|
# Graphics print
|
|
def test_graphics_black():
|
|
"""
|
|
Test printing solid black graphics
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/canvas_black.png', impl="graphics")
|
|
assert(instance.output == b'\x1d(L\x0b\x000p0\x01\x011\x01\x00\x01\x00\x80\x1d(L\x02\x0002')
|
|
|
|
|
|
def test_graphics_white():
|
|
"""
|
|
Test printing solid white graphics
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/canvas_white.png', impl="graphics")
|
|
assert(instance.output == b'\x1d(L\x0b\x000p0\x01\x011\x01\x00\x01\x00\x00\x1d(L\x02\x0002')
|
|
|
|
|
|
def test_graphics_both():
|
|
"""
|
|
Test printing black/white graphics
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/black_white.png', impl="graphics")
|
|
assert(instance.output == b'\x1d(L\x0c\x000p0\x01\x011\x02\x00\x02\x00\xc0\x00\x1d(L\x02\x0002')
|
|
|
|
|
|
def test_graphics_transparent():
|
|
"""
|
|
Test printing black/transparent graphics
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/black_transparent.png', impl="graphics")
|
|
assert(instance.output == b'\x1d(L\x0c\x000p0\x01\x011\x02\x00\x02\x00\xc0\x00\x1d(L\x02\x0002')
|
|
|
|
|
|
def test_large_graphics():
|
|
"""
|
|
Test whether 'large' graphics that induce a fragmentation are handled correctly.
|
|
"""
|
|
instance = printer.Dummy()
|
|
instance.image('test/resources/black_white.png', impl="bitImageRaster", fragment_height=1)
|
|
assert(instance.output == b'\x1dv0\x00\x01\x00\x01\x00\xc0\x1dv0\x00\x01\x00\x01\x00\x00')
|