setop/python-escpos
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Support changing the line spacing.

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Michael Elsdörfer
2016-08-25 15:56:32 +02:00
parent 798893caee
commit 854b75be30
3 changed files with 50 additions and 0 deletions
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20
test/test_functions.py Normal file
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from nose.tools import assert_raises
from escpos.printer import Dummy
def test_line_spacing_code_gen():
printer = Dummy()
printer.line_spacing(10)
assert printer.output == '\x1b3\n'
def test_line_spacing_error_handling():
printer = Dummy()
with assert_raises(ValueError):
printer.line_spacing(divisor=44)
with assert_raises(ValueError):
printer.line_spacing(divisor=80, spacing=86)
with assert_raises(ValueError):
printer.line_spacing(divisor=360, spacing=256)
with assert_raises(ValueError):
printer.line_spacing(divisor=180, spacing=256)