Merge branch 'capabilities' into text-encoding

test/test_function_barcode.py

@@ -0,0 +1,34 @@
+#!/usr/bin/python
+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 escpos.constants import BARCODE_TYPE_A, BARCODE_TYPE_B
+from escpos.capabilities import Profile, BARCODE_B
+from escpos.exceptions import BarcodeTypeError
+import pytest
+
+
+@pytest.mark.parametrize("bctype,data,expected", [
+    ('EAN13', '4006381333931',
+        b'\x1ba\x01\x1dh@\x1dw\x03\x1df\x00\x1dH\x02\x1dk\x024006381333931\x00')
+])
+def test_barcode(bctype, data, expected):
+    instance = printer.Dummy()
+    instance.barcode(data, bctype)
+    assert instance.output == expected
+
+
+@pytest.mark.parametrize("bctype,supports_b", [
+    ('invalid', True),
+    ('CODE128', False),
+])
+def test_lacks_support(bctype, supports_b):
+    profile = Profile(features={BARCODE_B: supports_b})
+    instance = printer.Dummy(profile=profile)
+    with pytest.raises(BarcodeTypeError):
+        instance.barcode('test', bctype)
+
+    assert instance.output == b''

test/test_function_text.py

@@ -16,13 +16,12 @@ import mock
 from hypothesis import given
 import hypothesis.strategies as st
 from escpos.printer import Dummy
-import escpos.printer as printer
 
 
 @given(text=st.text())
 def test_function_text_dies_ist_ein_test_lf(text):
     """test the text printing function with simple string and compare output"""
-    instance = printer.Dummy()
+    instance = Dummy()
     instance.magic.encode_text = mock.Mock()
     instance.text(text)
     instance.magic.encode_text.assert_called_with(txt=text)
@@ -33,4 +32,4 @@ def test_block_text():
     printer.block_text(
         "All the presidents men were eating falafel for breakfast.", font='a')
     assert printer.output == \
-        'All the presidents men were eating falafel\nfor breakfast.'
+        b'All the presidents men were eating falafel\nfor breakfast.'

test/test_functions.py

@@ -0,0 +1,26 @@
+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 == b'\x1b3\n'
+
+
+def test_line_spacing_rest():
+    printer = Dummy()
+    printer.line_spacing()
+    assert printer.output == b'\x1b2'
+
+
+def test_line_spacing_error_handling():
+    printer = Dummy()
+    with assert_raises(ValueError):
+      printer.line_spacing(99, 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)

test/test_profile.py

@@ -0,0 +1,34 @@
+import pytest
+from escpos.capabilities import get_profile, NotSupported, BARCODE_B, Profile
+
+
+@pytest.fixture
+def profile():
+    return get_profile('default')
+
+
+class TestBaseProfile:
+
+    def test_get_font(self, profile):
+        with pytest.raises(NotSupported):
+            assert profile.get_font('3')
+        assert profile.get_font(1) == 1
+        assert profile.get_font('a') == 0
+
+    def test_supports(self, profile):
+        assert not profile.supports('asdf asdf')
+        assert profile.supports(BARCODE_B)
+
+    def test_get_columns(self, profile):
+        assert profile.get_columns('a') > 5
+        with pytest.raises(NotSupported):
+            assert profile.get_columns('asdfasdf')
+
+
+class TestCustomProfile:
+
+    def test_columns(self):
+        assert Profile(columns=10).get_columns('sdfasdf') == 10
+
+    def test_features(self):
+        assert Profile(features={'foo': True}).supports('foo')