python-escpos/test/test_function_set.py

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals

import six

import escpos.printer as printer
from escpos.constants import TXT_NORMAL, TXT_STYLE, SET_FONT
from escpos.constants import TXT_SIZE


# Default test, please copy and paste this block to test set method calls

def test_default_values():
    instance = printer.Dummy()
    instance.set()

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert(instance.output == b''.join(expected_sequence))

# Size tests

def test_set_size_2h():
    instance = printer.Dummy()
    instance.set(double_height=True)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['2h'],  # Double height text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert (instance.output == b''.join(expected_sequence))


def test_set_size_2w():
    instance = printer.Dummy()
    instance.set(double_width=True)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['2w'],  # Double width text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert (instance.output == b''.join(expected_sequence))


def test_set_size_2x():
    instance = printer.Dummy()
    instance.set(double_height=True, double_width=True)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['2x'],  # Double text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert (instance.output == b''.join(expected_sequence))


def test_set_size_custom():
    instance = printer.Dummy()
    instance.set(custom_size=True, width=8, height=7)

    expected_sequence = (
        TXT_SIZE,  # Custom text size, no normal reset
        six.int2byte(TXT_STYLE['width'][8] + TXT_STYLE['height'][7]),
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert (instance.output == b''.join(expected_sequence))

# Flip

def test_set_flip():
    instance = printer.Dummy()
    instance.set(flip=True)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][True],  # Flip ON
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert (instance.output == b''.join(expected_sequence))

# Smooth

def test_smooth():
    instance = printer.Dummy()
    instance.set(smooth=True)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][True],  # Smooth ON
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert(instance.output == b''.join(expected_sequence))


# Type


def test_set_bold():
    instance = printer.Dummy()
    instance.set(bold=True)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][True],  # Bold ON
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert (instance.output == b''.join(expected_sequence))


def test_set_underline():
    instance = printer.Dummy()
    instance.set(underline=1)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][1],  # Underline ON, type 1
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert (instance.output == b''.join(expected_sequence))


def test_set_underline2():
    instance = printer.Dummy()
    instance.set(underline=2)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][2],  # Underline ON, type 2
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert (instance.output == b''.join(expected_sequence))


# Align

def test_align_center():
    instance = printer.Dummy()
    instance.set(align='center')

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['center'],  # Align center
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert(instance.output == b''.join(expected_sequence))


def test_align_right():
    instance = printer.Dummy()
    instance.set(align='right')

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['right'],  # Align right
        TXT_STYLE['invert'][False]  # Inverted OFF
    )

    assert(instance.output == b''.join(expected_sequence))


# Densities

def test_densities():

    for density in range(8):
        instance = printer.Dummy()
        instance.set(density=density)

        expected_sequence = (
            TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
            TXT_STYLE['flip'][False],  # Flip OFF
            TXT_STYLE['smooth'][False],  # Smooth OFF
            TXT_STYLE['bold'][False],  # Bold OFF
            TXT_STYLE['underline'][0],  # Underline OFF
            SET_FONT(b'\x00'),  # Default font
            TXT_STYLE['align']['left'],  # Align left
            TXT_STYLE['density'][density],  # Custom density from 0 to 8
            TXT_STYLE['invert'][False]  # Inverted OFF
        )

        assert(instance.output == b''.join(expected_sequence))


# Invert

def test_invert():
    instance = printer.Dummy()
    instance.set(invert=True)

    expected_sequence = (
        TXT_NORMAL, TXT_STYLE['size']['normal'],  # Normal text size
        TXT_STYLE['flip'][False],  # Flip OFF
        TXT_STYLE['smooth'][False],  # Smooth OFF
        TXT_STYLE['bold'][False],  # Bold OFF
        TXT_STYLE['underline'][0],  # Underline OFF
        SET_FONT(b'\x00'),  # Default font
        TXT_STYLE['align']['left'],  # Align left
        TXT_STYLE['invert'][True]  # Inverted ON
    )

    assert(instance.output == b''.join(expected_sequence))