sanitize_post() test for integer fields. props kovshenin. see #22324.

git-svn-id: https://unit-test.svn.wordpress.org/trunk@1193 4a5a2adb-35eb-4268-9a1b-fe04a4134342
Tests for wp_get_archives() caching. see #WP23206


git-svn-id: https://unit-test.svn.wordpress.org/trunk@1194 4a5a2adb-35eb-4268-9a1b-fe04a4134342
Switch helper function to static

Since `get_term_ids` is static the helper needs to be static, too.

See #UT101.


git-svn-id: https://unit-test.svn.wordpress.org/trunk@1195 4a5a2adb-35eb-4268-9a1b-fe04a4134342