diff --git a/docs/manual/contribute.txt b/docs/manual/contribute.txt
index bf3d5a7075..36512c0ee3 100644
--- a/docs/manual/contribute.txt
+++ b/docs/manual/contribute.txt
@@ -677,9 +677,23 @@ string you choose to identify this specific job being created.
  $ git push gitlab HEAD:<name>-runtime-tests
 ---------------------
 
-* to trigger one test case job, a specific branch naming string is used that
-includes the full test case name.
+* to trigger one or several test case jobs, a specific branch naming
+string is used that includes either the full test case name, or the
+beginning of a series of tests to run:
 
 ---------------------
  $ git push gitlab HEAD:<name>-<test case name>
 ---------------------
+
+Example to run one test:
+
+---------------------
+ $ git push gitlab HEAD:foo-tests.init.test_busybox.TestInitSystemBusyboxRo
+---------------------
+
+Examples to run several tests part of the same group:
+
+---------------------
+ $ git push gitlab HEAD:foo-tests.init.test_busybox
+ $ git push gitlab HEAD:foo-tests.init
+---------------------
diff --git a/support/scripts/generate-gitlab-ci-yml b/support/scripts/generate-gitlab-ci-yml
index 3f498e08fd..69c3fb275f 100755
--- a/support/scripts/generate-gitlab-ci-yml
+++ b/support/scripts/generate-gitlab-ci-yml
@@ -71,7 +71,11 @@ gen_tests() {
             do_runtime=true
             ;;
           (*-tests.*)
-            runtimes=( "${CI_COMMIT_REF_NAME##*-}" )
+            runtimes=( $(./support/testing/run-tests -l 2>&1 \
+                         | sed -r -e '/^test_run \((.*)\).*/!d; s//\1/' \
+                         | LC_ALL=C sort \
+                         | grep "^${CI_COMMIT_REF_NAME##*-}")
+                     )
             do_runtime=true
             ;;
         esac