uitest: reset value when changing the measurement unit

Otherwise, changing it in one test might affect other tests
Use @contextmanager decorator to change it back to default 'Inch'
at the end of the test even if the test hits an assert

Change-Id: I1e7b35019cd19b490aa619c0a866bb9f93820950
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/146583
Tested-by: Jenkins
Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>

0 files changed, 0 insertions, 0 deletions