def test_load_sprite_table_exceptions_1():
"""
Test that exceptions are thrown as appropriate if bitmap_font is asked to
load from a sprite table from a filename that does not exist, is not a
PIL.Image file, or is damaged.
"""
with pytest.raises(FileNotFoundError) as ex:
filename = 'badfile'
bitmap_font.load_sprite_table(filename, range(16, 256), 5, (5, 8), (5, 8), FONTDATA['mappings'][1])
assert ex.value.filename == filename
def test_load_sprite_table_exceptions_2():
"""
Test that exceptions are thrown as appropriate if bitmap_font is asked to
load from a sprite table from a filename that does not exist, is not a
PIL.Image file, or is damaged.
"""
with pytest.raises(ValueError) as ex:
filename = get_reference_file(Path('font').joinpath('hd44780a02.pil'))
bitmap_font.load_sprite_table(filename, range(16, 256), 5, (5, 8), (5, 8), FONTDATA['mappings'][1])
assert str(ex.value) == f'File {filename} not a valid sprite table'
with pytest.raises(ValueError) as ex:
bitmap_font.load_sprite_table(1, range(16, 256), 5, (5, 8), (5, 8), FONTDATA['mappings'][1])
assert str(ex.value) == 'Provided image is not an instance of PIL.Image'
def test_load_sprite_table():
"""
Test loading a font from a sprite_table
"""
fnt = get_reference_pillow_font('hd44780a02.pil')
filename = get_reference_file(Path('font').joinpath('hd44780a02.pbm'))
bmf = bitmap_font.load_sprite_table(filename, range(16, 256), 5, (5, 8), (5, 8), FONTDATA['mappings'][1])
img1 = make_sprite_table(fnt)
img2 = make_sprite_table(bmf)
assert img1 == img2
def test_load_sprite_table_exceptions():
"""
Test that exceptions are thrown as appropriate if bitmap_font is asked to
load from a sprite table from a filename that does not exist, is not a
PIL.Image file, or is damaged.
"""
with pytest.raises(FileNotFoundError) as ex:
filename = 'badfile'
bitmap_font.load_sprite_table(filename, range(16, 256), 5, (5, 8),
(5, 8), FONTDATA['mappings'][1])
assert str(
ex.value) == '[Errno 2] No such file or directory: \'{0}\''.format(
filename)
with pytest.raises(ValueError) as ex:
filename = get_reference_file(os.path.join('font', 'hd44780a02.pil'))
bitmap_font.load_sprite_table(filename, range(16, 256), 5, (5, 8),
(5, 8), FONTDATA['mappings'][1])
assert str(
ex.value) == 'File {0} not a valid sprite table'.format(filename)
with pytest.raises(ValueError) as ex:
bitmap_font.load_sprite_table(1, range(16, 256), 5, (5, 8), (5, 8),
FONTDATA['mappings'][1])
assert str(ex.value) == 'Provided image is not an instance of PIL.Image'
def bm_font(request):
"""
Fixture which loads a ``bitmap_font`` persists it to disk
The fixture removes the file when it is finished.
"""
filename = get_reference_file(Path('font').joinpath('hd44780a02.pbm'))
bmf = bitmap_font.load_sprite_table(filename, range(16, 256), 5, (5, 8),
(5, 8), FONTDATA['mappings'][1])
bmf.save('test.bmf')
def tear_down():
os.remove('test.bmf')
request.addfinalizer(tear_down)
return bmf
def load_all_embedded(request):
"""
Fixture which loads the two fonts contained within the test FONTDATA information
"""
fnt_cnt = len(FONTDATA['metrics'])
bmfs = [None] * fnt_cnt
for i in range(fnt_cnt):
m = FONTDATA['metrics'][i]
sp_data = FONTDATA['fonts'][i]
mappings = FONTDATA['mappings'][i]
sprite_table = Image.frombytes('1', m['table_size'], sp_data)
bmfs[i] = bitmap_font.load_sprite_table(sprite_table, m['index'], m['xwidth'],
m['glyph_size'], m['cell_size'], mappings)
sprite_table.close()
return bmfs