Add unit test for mgr-gitlab-clone, run in CI

.mgr_config/tests/test-emacs.sh

@@ -1,3 +1,17 @@
 #!/bin/bash
 
-emacs --batch --debug-init --load ./.emacs.d/init.el
+set -e -o pipefail
+
+SRC_ROOT="$(dirname "${BASH_SOURCE}")"
+
+source "$SRC_ROOT/gitlab-utils.sh"
+
+# Load emacs
+gitlab_start_log_section "test_init" "Running Emacs"
+emacs --batch --debug-init -l ./.emacs.d/init.el
+gitlab_end_log_section "test_init"
+
+# Run tests
+gitlab_start_log_section "run_unit_tests" "Running Unit Tests"
+emacs --batch --debug-init -l ert -l ./.emacs.d/init.el -f ert-run-tests-batch-and-exit
+gitlab_end_log_section "run_unit_tests"