diff --git a/tests/yangre/arg.test b/tests/yangre/arg.test
new file mode 100644
index 0000000..821aad1
--- /dev/null
+++ b/tests/yangre/arg.test
@@ -0,0 +1,19 @@
+source [expr {[info exists ::env(TESTS_DIR)] ? "$env(TESTS_DIR)/ly.tcl" : "ly.tcl"}]
+
+test arg_empty {Missing arguments} {
+    ly_cmd_err "" "missing <string> parameter to process"
+} {}
+
+test arg_wrong {Wrong argument} {
+    ly_cmd_err "-j" "invalid option"
+} {}
+
+test arg_help {Print help} {
+    ly_cmd "-h" "Usage:"
+} {}
+
+test arg_version {Print version} {
+    ly_cmd "-v" "yangre"
+} {}
+
+cleanupTests