test: increase util.callbackify() coverage

This commit adds coverage for util.callbackify() type checking.

PR-URL: #13705
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

test/parallel/test-util-callbackify.js

@@ -225,3 +225,37 @@ const values = [
  })
  );
 }
+
+{
+ // Verify that non-function inputs throw.
+ ['foo', null, undefined, false, 0, {}, Symbol(), []].forEach((value) => {
+ assert.throws(() => {
+ callbackify(value);
+ }, common.expectsError({
+ code: 'ERR_INVALID_ARG_TYPE',
+ type: TypeError,
+ message: 'The "original" argument must be of type function'
+ }));
+ });
+}
+
+{
+ async function asyncFn() {
+ return await Promise.resolve(42);
+ }
+
+ const cb = callbackify(asyncFn);
+ const args = [];
+
+ // Verify that the last argument to the callbackified function is a function.
+ ['foo', null, undefined, false, 0, {}, Symbol(), []].forEach((value) => {
+ args.push(value);
+ assert.throws(() => {
+ cb(...args);
+ }, common.expectsError({
+ code: 'ERR_INVALID_ARG_TYPE',
+ type: TypeError,
+ message: 'The "last argument" argument must be of type function'
+ }));
+ });
+}