def test_check_monospace_max_advancewidth():
""" Monospace font has hhea.advanceWidthMax equal
to each glyph's advanceWidth? """
from fontbakery.profiles.hhea import com_google_fonts_check_monospace_max_advancewidth as check
from fontbakery.profiles.shared_conditions import glyph_metrics_stats
test_font_path = TEST_FILE("cousine/Cousine-Regular.ttf")
test_font = TTFont(test_font_path)
import fontTools.subset
subsetter = fontTools.subset.Subsetter()
subsetter.populate(glyphs="A") # Arbitrarily remove everything except n.
subsetter.subset(test_font)
stats = glyph_metrics_stats(test_font)
status, _ = list(check(test_font, stats))[-1]
assert status == PASS
metrics_A = test_font["hmtx"].metrics["A"]
test_font["hmtx"].metrics["A"] = (metrics_A[0] + 1, metrics_A[1])
stats = glyph_metrics_stats(test_font)
status, message = list(check(test_font, stats))[-1]
assert status == WARN
assert message.code == "should-be-monospaced"
test_font["hmtx"].metrics["A"] = (metrics_A[0] + metrics_A[0], metrics_A[1])
stats = glyph_metrics_stats(test_font)
status, message = list(check(test_font, stats))[-1]
assert status == WARN
assert message.code == "variable-monospaced"
test_font["hmtx"].metrics["A"] = (0, metrics_A[1])
stats = glyph_metrics_stats(test_font)
status, message = list(check(test_font, stats))[-1]
assert status == WARN
assert message.code == "variable-monospaced"
def test_check_linegaps():
""" Checking Vertical Metric Linegaps. """
from fontbakery.profiles.hhea import com_google_fonts_check_linegaps as check
print('Test FAIL with non-zero hhea.lineGap...')
# Our reference Mada Regular is know to be bad here.
ttFont = TTFont(TEST_FILE("mada/Mada-Regular.ttf"))
# But just to be sure, we first explicitely set
# the values we're checking for:
ttFont['hhea'].lineGap = 1
ttFont['OS/2'].sTypoLineGap = 0
status, message = list(check(ttFont))[-1]
assert status == WARN and message.code == "hhea"
# Then we run the check with a non-zero OS/2.sTypoLineGap:
ttFont['hhea'].lineGap = 0
ttFont['OS/2'].sTypoLineGap = 1
status, message = list(check(ttFont))[-1]
assert status == WARN and message.code == "OS/2"
# And finaly we fix it by making both values equal to zero:
ttFont['hhea'].lineGap = 0
ttFont['OS/2'].sTypoLineGap = 0
status, message = list(check(ttFont))[-1]
assert status == PASS
def test_check_maxadvancewidth():
""" MaxAdvanceWidth is consistent with values in the Hmtx and Hhea tables? """
from fontbakery.profiles.hhea import com_google_fonts_check_maxadvancewidth as check
test_font = TTFont(TEST_FILE("familysans/FamilySans-Regular.ttf"))
assert_PASS(check(test_font))
test_font["hmtx"].metrics["A"] = (1234567, 1234567)
assert_results_contain(check(test_font), FAIL, 'mismatch')
def test_check_maxadvancewidth():
""" MaxAdvanceWidth is consistent with values in the Hmtx and Hhea tables? """
from fontbakery.profiles.hhea import com_google_fonts_check_maxadvancewidth as check
test_font = TTFont(TEST_FILE("familysans/FamilySans-Regular.ttf"))
status, _ = list(check(test_font))[-1]
assert status == PASS
test_font["hmtx"].metrics["A"] = (1234567, 1234567)
status, _ = list(check(test_font))[-1]
assert status == FAIL
