diff --git a/master_changes.md b/master_changes.md
index 93761245738..182bd413455 100644
--- a/master_changes.md
+++ b/master_changes.md
@@ -145,6 +145,7 @@ users)
 ### Tests
   * Add switch removal test: failure on removal linked switch [#6276 @btjorge]
   * Extend the tests on opam admin to include packages using builtin global variables [#6331 @kit-ty-kate]
+  * Extend the tests on opam admin check by including all the arguments [#6331 @kit-ty-kate]
 
 ### Engine
 
diff --git a/tests/reftests/admin.test b/tests/reftests/admin.test
index db07b952668..657d81601f8 100644
--- a/tests/reftests/admin.test
+++ b/tests/reftests/admin.test
@@ -329,6 +329,48 @@ Summary: out of 21 packages (18 distinct names)
 - 2 uninstallable roots
 
 # Return code 1 #
+### opam admin check -i
+Checking installability of every package. This may take a few minutes...
+[ERROR] These packages are not installable (2):
+        ocaml-system.1.2 risus.1
+Summary: out of 21 packages (18 distinct names)
+- 2 uninstallable roots
+
+# Return code 1 #
+### opam admin check --installability
+Checking installability of every package. This may take a few minutes...
+[ERROR] These packages are not installable (2):
+        ocaml-system.1.2 risus.1
+Summary: out of 21 packages (18 distinct names)
+- 2 uninstallable roots
+
+# Return code 1 #
+### opam admin check --installability -i
+Checking installability of every package. This may take a few minutes...
+[ERROR] These packages are not installable (2):
+        ocaml-system.1.2 risus.1
+Summary: out of 21 packages (18 distinct names)
+- 2 uninstallable roots
+
+# Return code 1 #
+### opam admin check --obsolete
+[ERROR] Obsolete packages detected:
+  - lorem 1.0, 2.0
+Summary: out of 21 packages (18 distinct names)
+- 2 obsolete packages
+
+# Return code 1 #
+### opam admin check --obsolete -i
+[ERROR] Obsolete packages detected:
+  - lorem 1.0, 2.0
+Summary: out of 21 packages (18 distinct names)
+- 2 obsolete packages
+
+# Return code 1 #
+### opam admin check --cycles
+No issues detected on this repository's 21 packages
+### opam admin check --cycles -i
+No issues detected on this repository's 21 packages
 ### : index :
 ### opam admin index
 Generating urls.txt...