From 939e8f0d1e7edd8dca5c2d8d09d500151768807d Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@zoso.dev>
Date: Thu, 3 Jul 2025 16:25:30 -0700
Subject: [PATCH] Fix test assert definitions.

---
 test/GLOBALS.mjs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/test/GLOBALS.mjs b/test/GLOBALS.mjs
index b02debc..14ab050 100644
--- a/test/GLOBALS.mjs
+++ b/test/GLOBALS.mjs
@@ -180,8 +180,7 @@ export const assert = {
 	},
 	exists: (a) => {
 		if (a == null) {
-			const type = /^[aeiou]/i.test(typeof a) ? `an ${typeof a}` : `a ${typeof a}`
-			throw new Error(`argument exists and is ${type}`)
+			throw new Error(`argument is ${typeof a}`)
 		}
 		return a != null
 	},
@@ -203,6 +202,13 @@ export const assert = {
 		}
 		return a !== b
 	},
+	nullish: (a) => {
+		if (a != null) {
+			const type = /^[aeiou]/i.test(typeof a) ? `an ${typeof a}` : `a ${typeof a}`
+			throw new Error(`argument exists and is ${type}`)
+		}
+		return a == null
+	},
 	rejects: async (fn, msg) => {
 		if (fn.constructor.name === 'AsyncFunction') {
 			fn = fn()
-- 
2.47.3