diff --git a/tests/checks/check-completions.fish b/tests/checks/check-completions.fish
new file mode 100644
index 000000000..e9ce18cd1
--- /dev/null
+++ b/tests/checks/check-completions.fish
@@ -0,0 +1,9 @@
+#RUN: %fish -C 'set -l fish %fish' %s
+# Test all completions where the command exists
+
+# No output is good output
+for f in $__fish_data_dir/completions/*.fish
+    if command -q (string replace -r '.*/([^/]+).fish' '$1' $f)
+        $fish $f
+    end
+end