tests: Fix calls to deprecated API in unix-mounts tests
This fixes commit aac56f16 — I missed this while reviewing it, but the unit tests were partially changed to call the new APIs, without being fully changed. This caused the build to succeed on Linux, but fail on macOS due to using a deprecated API.
Actually, a better approach for the unit tests would be to consistently
call the old APIs, as they all immediately call the new APIs. Then we
get coverage of both old and new for free, at the cost of putting
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
at the top of the test file.
Signed-off-by: Philip Withnall pwithnall@gnome.org
Helps: #3492 (closed)