def test_check_unitsperem():
""" Checking unitsPerEm value is reasonable. """
from fontbakery.profiles.head import com_google_fonts_check_unitsperem as check
# In this test we'll forge several known-good and known-bad values.
# We'll use Mada Regular to start with:
ttFont = TTFont(TEST_FILE("mada/Mada-Regular.ttf"))
for good_value in [16, 32, 64, 128, 256, 512, 1000,
1024, 2000, 2048, 4096, 8192, 16384]:
ttFont['head'].unitsPerEm = good_value
assert_PASS(check(ttFont),
f'with a good value of unitsPerEm = {good_value} ...')
for warn_value in [20, 50, 100, 500, 4000]:
ttFont['head'].unitsPerEm = warn_value
assert_results_contain(check(ttFont),
WARN, 'suboptimal',
f'with a value of unitsPerEm = {warn_value} ...')
# These are arbitrarily chosen bad values:
for bad_value in [0, 1, 2, 4, 8, 10, 15, 16385, 32768]:
ttFont['head'].unitsPerEm = bad_value
assert_results_contain(check(ttFont),
FAIL, 'out-of-range',
f'with a bad value of unitsPerEm = {bad_value} ...')
def test_check_unitsperem():
""" Checking unitsPerEm value is reasonable. """
from fontbakery.profiles.head import com_google_fonts_check_unitsperem as check
# In this test we'll forge several known-good and known-bad values.
# We'll use Mada Regular to start with:
ttFont = TTFont(TEST_FILE("mada/Mada-Regular.ttf"))
for good_value in [16, 32, 64, 128, 256, 512, 1000,
1024, 2000, 2048, 4096, 8192, 16384]:
print(f"Test PASS with a good value of unitsPerEm = {good_value} ...")
ttFont['head'].unitsPerEm = good_value
status, _ = list(check(ttFont))[-1]
assert status == PASS
for warn_value in [20, 50, 100, 500, 4000]:
print(f"Test WARN with a value of unitsPerEm = {warn_value} ...")
ttFont['head'].unitsPerEm = warn_value
status, _ = list(check(ttFont))[-1]
assert status == WARN
# These are arbitrarily chosen bad values:
for bad_value in [0, 1, 2, 4, 8, 10, 15, 16385, 32768]:
print(f"Test FAIL with a bad value of unitsPerEm = {bad_value} ...")
ttFont['head'].unitsPerEm = bad_value
status, message = list(check(ttFont))[-1]
assert status == FAIL
def test_check_unitsperem():
""" Checking unitsPerEm value is reasonable. """
from fontbakery.profiles.head import com_google_fonts_check_unitsperem as check
# In this test we'll forge several known-good and known-bad values.
# We'll use Mada Regular to start with:
ttFont = TTFont(TEST_FILE("mada/Mada-Regular.ttf"))
for good_value in [
16, 32, 64, 128, 256, 512, 1000, 1024, 2000, 2048, 4096, 8192,
16384
]:
print(f"Test PASS with a good value of unitsPerEm = {good_value} ...")
ttFont['head'].unitsPerEm = good_value
status, _ = list(check(ttFont))[-1]
assert status == PASS
for warn_value in [20, 50, 100, 500, 4000]:
print(f"Test WARN with a value of unitsPerEm = {warn_value} ...")
ttFont['head'].unitsPerEm = warn_value
status, message = list(check(ttFont))[-1]
assert status == WARN and message.code == "suboptimal"
# These are arbitrarily chosen bad values:
for bad_value in [0, 1, 2, 4, 8, 10, 15, 16385, 32768]:
print(f"Test FAIL with a bad value of unitsPerEm = {bad_value} ...")
ttFont['head'].unitsPerEm = bad_value
status, message = list(check(ttFont))[-1]
assert status == FAIL and message.code == "out-of-range"
def test_check_font_version():
""" Checking font version fields. """
from fontbakery.profiles.head import com_google_fonts_check_font_version as check
test_font_path = TEST_FILE("nunito/Nunito-Regular.ttf")
test_font = TTFont(test_font_path)
assert_PASS(check(test_font))
# 1.00099 is only a mis-interpretation of a valid float value (1.001)
# See more detailed discussion at:
# https://github.com/googlefonts/fontbakery/issues/2006
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 1.00098
test_font["name"].setName("Version 1.001", 5, 1, 0, 0x0)
test_font["name"].setName("Version 1.001", 5, 3, 1, 0x409)
# There should be at least one WARN...
assert_results_contain(check(test_font),
WARN, None) # FIXME: This needs a message keyword!
# But final result is a PASS:
assert_PASS(check(test_font))
# Test that having more than 3 decimal places in the version
# in the Name table is acceptable.
# See https://github.com/googlefonts/fontbakery/issues/2928
test_font = TTFont(test_font_path)
# This is the nearest multiple of 1/65536 to 2020.0613
test_font["head"].fontRevision = 2020.061294555664
test_font["name"].setName("Version 2020.0613", 5, 1, 0, 0x0)
test_font["name"].setName("Version 2020.0613", 5, 3, 1, 0x409)
assert_PASS(check(test_font))
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 3.1
test_font["name"].setName("Version 3.000", 5, 1, 0, 0x0)
test_font["name"].setName("Version 3.000", 5, 3, 1, 0x409)
assert_results_contain(check(test_font),
FAIL, 'mismatch')
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 3.0
test_font["name"].setName("Version 1.000", 5, 3, 1, 0x409)
assert_results_contain(check(test_font),
FAIL, 'mismatch')
test_font = TTFont(test_font_path)
test_font["name"].setName("Version x.000", 5, 3, 1, 0x409)
assert_results_contain(check(test_font),
FAIL, 'parse')
test_font = TTFont(test_font_path)
v1 = test_font["name"].getName(5, 3, 1)
v2 = test_font["name"].getName(5, 1, 0)
test_font["name"].names.remove(v1)
test_font["name"].names.remove(v2)
assert_results_contain(check(test_font),
FAIL, 'missing')
def test_check_family_equal_font_versions(mada_ttFonts):
""" Make sure all font files have the same version value. """
from fontbakery.profiles.head import com_google_fonts_check_family_equal_font_versions as check
# our reference Mada family is know to be good here.
assert_PASS(check(mada_ttFonts),
'with good family.')
bad_ttFonts = mada_ttFonts
# introduce a mismatching version value into the second font file:
version = bad_ttFonts[0]['head'].fontRevision
bad_ttFonts[1]['head'].fontRevision = version + 1
assert_results_contain(check(bad_ttFonts),
WARN, 'mismatch',
'with fonts that diverge on the fontRevision field value.')
def test_check_family_equal_font_versions(mada_ttFonts):
""" Make sure all font files have the same version value. """
from fontbakery.profiles.head import com_google_fonts_check_family_equal_font_versions as check
print('Test PASS with good family.')
# our reference Mada family is know to be good here.
status, message = list(check(mada_ttFonts))[-1]
assert status == PASS
bad_ttFonts = mada_ttFonts
# introduce a mismatching version value into the second font file:
version = bad_ttFonts[0]['head'].fontRevision
bad_ttFonts[1]['head'].fontRevision = version + 1
print('Test WARN with fonts that diverge on the fontRevision field value.')
status, message = list(check(bad_ttFonts))[-1]
assert status == WARN and message.code == "mismatch"
def test_check_family_equal_font_versions(mada_ttFonts):
""" Make sure all font files have the same version value. """
from fontbakery.profiles.head import com_google_fonts_check_family_equal_font_versions as check
print('Test PASS with good family.')
# our reference Mada family is know to be good here.
status, message = list(check(mada_ttFonts))[-1]
assert status == PASS
bad_ttFonts = mada_ttFonts
# introduce a mismatching version value into the second font file:
version = bad_ttFonts[0]['head'].fontRevision
bad_ttFonts[1]['head'].fontRevision = version + 1
print('Test WARN with fonts that diverge on the fontRevision field value.')
status, message = list(check(bad_ttFonts))[-1]
assert status == WARN
def test_check_font_version():
""" Checking font version fields. """
from fontbakery.profiles.head import com_google_fonts_check_font_version as check
test_font_path = TEST_FILE("nunito/Nunito-Regular.ttf")
test_font = TTFont(test_font_path)
status, _ = list(check(test_font))[-1]
assert status == PASS
# 1.00099 is only a mis-interpretation of a valid float value (1.001)
# See more detailed discussion at:
# https://github.com/googlefonts/fontbakery/issues/2006
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 1.00099
test_font["name"].setName("Version 1.001", 5, 1, 0, 0x0)
test_font["name"].setName("Version 1.001", 5, 3, 1, 0x409)
check_results = list(check(test_font))
# There should be at least one WARN...
assert WARN in [r[0] for r in check_results]
# But final result is a PASS.
final_status, message = check_results[-1]
assert final_status == PASS
# Test that having more than 3 decimal places in the version
# in the Name table is acceptable.
# See https://github.com/googlefonts/fontbakery/issues/2928
test_font = TTFont(test_font_path)
# This is the nearest multiple of 1/65536 to 2020.0613
test_font["head"].fontRevision = 2020.061294555664
test_font["name"].setName("Version 2020.0613", 5, 1, 0, 0x0)
test_font["name"].setName("Version 2020.0613", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == PASS
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 3.1
test_font["name"].setName("Version 3.000", 5, 1, 0, 0x0)
test_font["name"].setName("Version 3.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "mismatch"
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 3.0
test_font["name"].setName("Version 1.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "mismatch"
test_font = TTFont(test_font_path)
test_font["name"].setName("Version x.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "parse"
test_font = TTFont(test_font_path)
v1 = test_font["name"].getName(5, 3, 1)
v2 = test_font["name"].getName(5, 1, 0)
test_font["name"].names.remove(v1)
test_font["name"].names.remove(v2)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "missing"
def test_check_font_version():
""" Checking font version fields. """
from fontbakery.profiles.head import com_google_fonts_check_font_version as check
test_font_path = TEST_FILE("nunito/Nunito-Regular.ttf")
test_font = TTFont(test_font_path)
status, _ = list(check(test_font))[-1]
assert status == PASS
# 1.00099 is only a mis-interpretation of a valid float value (1.001)
# See more detailed discussion at:
# https://github.com/googlefonts/fontbakery/issues/2006
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 1.00099
test_font["name"].setName("Version 1.001", 5, 1, 0, 0x0)
test_font["name"].setName("Version 1.001", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == PASS
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 3.1
test_font["name"].setName("Version 3.000", 5, 1, 0, 0x0)
test_font["name"].setName("Version 3.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "mismatch"
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 3.0
test_font["name"].setName("Version 1.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "mismatch"
test_font = TTFont(test_font_path)
test_font["name"].setName("Version x.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "parse"
test_font = TTFont(test_font_path)
v1 = test_font["name"].getName(5, 3, 1)
v2 = test_font["name"].getName(5, 1, 0)
test_font["name"].names.remove(v1)
test_font["name"].names.remove(v2)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "missing"
def test_check_font_version():
""" Checking font version fields. """
from fontbakery.profiles.head import com_google_fonts_check_font_version as check
test_font_path = TEST_FILE("nunito/Nunito-Regular.ttf")
test_font = TTFont(test_font_path)
status, _ = list(check(test_font))[-1]
assert status == PASS
# 1.00099 is only a mis-interpretation of a valid float value (1.001)
# See more detailed discussion at:
# https://github.com/googlefonts/fontbakery/issues/2006
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 1.00099
test_font["name"].setName("Version 1.001", 5, 1, 0, 0x0)
test_font["name"].setName("Version 1.001", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == PASS
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 3.1
test_font["name"].setName("Version 3.000", 5, 1, 0, 0x0)
test_font["name"].setName("Version 3.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "mismatch"
test_font = TTFont(test_font_path)
test_font["head"].fontRevision = 3.0
test_font["name"].setName("Version 1.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "mismatch"
test_font = TTFont(test_font_path)
test_font["name"].setName("Version x.000", 5, 3, 1, 0x409)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "parse"
test_font = TTFont(test_font_path)
v1 = test_font["name"].getName(5, 3, 1)
v2 = test_font["name"].getName(5, 1, 0)
test_font["name"].names.remove(v1)
test_font["name"].names.remove(v2)
status, message = list(check(test_font))[-1]
assert status == FAIL and message.code == "missing"