Add test to see if gcmh-mode is enabled

test/integration/oni-core.bats

@@ -36,6 +36,15 @@
     [[ "$output" == *"t" ]]
 }
 
+@test "Starting Emacs enables gcmh-mode" {
+    run emacs -batch -l package -f package-initialize \
+        -eval "(prin1 (bound-and-true-p gcmh-mode))"
+
+    echo "$output"
+
+    [[ "$output" == *"t" ]]
+}
+
 @test "Starting Emacs diminishes ws-butler-global-mode" {
     run emacs -batch -l package -f package-initialize -l subr-x \
         -eval "(prin1 (string-empty-p (car (alist-get 'ws-butler-mode minor-mode-alist))))"