Parser: cover full Jai corpus

jaitest

@@ -26,7 +26,14 @@ fi
 
 run_gradle() {
     rm -rf build/reports/tests/test
-    ./jaigradle cleanTest test "${extra[@]}" "$@" 2>&1 | grep -vE '^\[[0-9.]+s\]\[warning\]\[cds\]'
+    # Bash 3.2 (the macOS system shell) treats an empty array expansion as an
+    # unset variable under `set -u`. Keep the no-extra-args invocation separate
+    # so the wrapper works both with and without a test filter.
+    if ((${#extra[@]})); then
+        ./jaigradle cleanTest test "${extra[@]}" "$@" 2>&1 | grep -vE '^\[[0-9.]+s\]\[warning\]\[cds\]'
+    else
+        ./jaigradle cleanTest test "$@" 2>&1 | grep -vE '^\[[0-9.]+s\]\[warning\]\[cds\]'
+    fi
     return "${PIPESTATUS[0]}"
 }