tests: Rename one libcomposetest.sh

We had two `libcomposetest.sh` which I always found confusing.
Fix the naming of the one that's shared with `ex-container`
to be more obvious.

Closes: #1543
Approved by: jlebon

tests/compose

@@ -5,7 +5,7 @@ dn=$(cd $(dirname $0) && pwd)
 
 export topsrcdir=$(cd $dn/.. && pwd)
 . ${dn}/common/libtest-core.sh
-. ${dn}/common/libcomposetest.sh
+. ${dn}/common/libtestrepos.sh
 
 # avoid refetching yum metadata everytime
 export RPMOSTREE_USE_CACHED_METADATA=1

tests/ex-container

@@ -5,7 +5,7 @@ set -xeuo pipefail
 dn=$(cd $(dirname $0) && pwd)
 export topsrcdir=$(cd $dn/.. && pwd)
 . ${dn}/common/libtest-core.sh
-. ${dn}/common/libcomposetest.sh
+. ${dn}/common/libtestrepos.sh
 
 if test "$(id -u)" = 0; then
     fatal "Don't run $0 as root"