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[subset_test] test disabling hb repacker, and capture logging

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This commit is contained in:
Cosimo Lupo 2022-04-20 12:59:58 +01:00
parent 1bb9607b72
commit 4160f05242
1 changed files with 33 additions and 16 deletions
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39
Tests/subset/subset_test.py
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@ -800,14 +800,16 @@ class SubsetTest:
)
@pytest.mark.parametrize(
"installed, ok",
"installed, enabled, ok",
[
pytest.param(True, True, id="installed-ok"),
pytest.param(True, False, id="installed-fail"),
pytest.param(False, True, id="not_installed"),
pytest.param(True, True, True, id="installed-enabled-ok"),
pytest.param(True, True, False, id="installed-enabled-fail"),
pytest.param(True, False, True, id="installed-disabled"),
pytest.param(False, True, True, id="not_installed-enabled"),
pytest.param(False, False, True, id="not_installed-disabled"),
],
)
def test_harfbuzz_repacker(self, caplog, monkeypatch, installed, ok):
def test_harfbuzz_repacker(self, caplog, monkeypatch, installed, enabled, ok):
# Use a mock to test the pure-python serializer is used when uharfbuzz
# returns an error or is not installed
have_uharfbuzz = fontTools.ttLib.tables.otBase.have_uharfbuzz
@ -831,26 +833,41 @@ class SubsetTest:
fontpath = self.compile_font(self.getpath("harfbuzz_repacker.ttx"), ".otf")
subsetpath = self.temp_path(".otf")
with caplog.at_level(logging.ERROR, "fontTools.ttLib.tables.otBase"):
subset.main(
[
args = [
fontpath,
"--unicodes=0x53a9",
"--layout-features=*",
f"--output-file={subsetpath}",
]
)
if not enabled:
args.append("--no-harfbuzz-repacker")
with caplog.at_level(logging.DEBUG, "fontTools.ttLib.tables.otBase"):
subset.main(args)
subsetfont = TTFont(subsetpath)
# both hb.repack and pure-python serializer compile to the same ttx
self.expect_ttx(
subsetfont, self.getpath("expect_harfbuzz_repacker.ttx"), ["GSUB"]
)
if enabled:
if installed:
assert "serializing 'GSUB' with hb.repack" in caplog.text
else:
assert (
"uharfbuzz not found, compiling 'GSUB' with pure-python serializer"
) in caplog.text
else:
assert (
"hb.repack disabled, compiling 'GSUB' with pure-python serializer"
) in caplog.text
# test we emit a log.error if hb.repack fails (and we don't if successful)
assert (
(
"hb.repack failed, reverting to pure-python serializer; "
"the error message was: mocking"
"hb.repack failed to serialize 'GSUB', reverting to "
"pure-python serializer; the error message was: mocking"
) in caplog.text
) ^ ok