What we actually want to test here is that the given type directory is created
and has the correct permission, we don't care much about the basedir itself.
Also, the download dir is not created automatically.
This test failed on Python 3.7 because intermediate directories now aren't
created with the given mode anymore:
https://bugs.python.org/issue19930https://docs.python.org/3.7/whatsnew/3.7.html#changes-in-the-python-api
After reading https://pyyaml.org/wiki/PyYAMLDocumentation again, turns out
Loader.add_constructor and .add_implicit_resolver are actually *class* methods.
In other words, we've been adding dozens of constructors/resolvers to the
default YAML loader object, causing it to slow down massively in other tests
which call configdata.init().
Instead, create our own loader class and only add them once there.
I'm still not sure why this caused the duration to increase with every YAML load
though - that might still be some kind of bug in PyYAML.
Fixes#2777
We call 'update_tab_titles' a lot of times which calls 'setTabText' on
every tab. 'setTabText' calls tabSizeHint and minTabSizeHint on every
tab as well, meaning this is an n^2 operation repeated many times.
First, this prevents setTabText from being called unless it's needed,
removing most of the work done.
Second, I remove tabs in reverse, to avoid recomputing the above for
every tab on shutdown (which is at least n^3)
- fix test_renamed_key()
- fix test_deleted_key()
- combine both test_merge_persist tests using @pytest.mark.parametrize
- fix _handle_migrations(): mark data dirty for renamed and deleted
