diff --git a/package.json b/package.json
index ee384d1..8e6e1ee 100644
--- a/package.json
+++ b/package.json
@@ -47,8 +47,9 @@
 		"@ljharb/eslint-config": "^21.1.1",
 		"auto-changelog": "^2.5.0",
 		"encoding": "^0.1.13",
+		"es-value-fixtures": "^1.5.0",
 		"eslint": "=8.8.0",
-		"has-symbols": "^1.0.3",
+		"for-each": "^0.3.3",
 		"in-publish": "^2.0.1",
 		"npmignore": "^0.3.1",
 		"nyc": "^10.3.2",
diff --git a/test/index.js b/test/index.js
index f9ea998..a275157 100644
--- a/test/index.js
+++ b/test/index.js
@@ -2,32 +2,10 @@
 
 var test = require('tape');
 var inspect = require('object-inspect');
-var whichBoxedPrimitive = require('..');
+var forEach = require('for-each');
+var v = require('es-value-fixtures');
 
-var debug = function (v, m) { return inspect(v) + ' ' + m; };
-
-var forEach = function (arr, func) {
-	var i;
-	for (i = 0; i < arr.length; ++i) {
-		func(arr[i], i, arr);
-	}
-};
-
-var hasSymbols = require('has-symbols')();
-var hasBigInts = typeof BigInt === 'function';
-
-var primitives = [
-	true,
-	false,
-	42,
-	NaN,
-	Infinity,
-	'',
-	'foo'
-].concat(
-	hasSymbols ? [Symbol(), Symbol.iterator] : [],
-	hasBigInts ? BigInt(42) : []
-);
+var whichBoxedPrimitive = require('../');
 
 var objects = [
 	/a/g,
@@ -35,29 +13,31 @@ var objects = [
 	function () {},
 	[],
 	{}
-];
+].concat(v.objects);
 
 test('isBoxedPrimitive', function (t) {
 	t.test('unboxed primitives', function (st) {
-		forEach([null, undefined].concat(primitives), function (primitive) {
-			st.equal(null, whichBoxedPrimitive(primitive), debug(primitive, 'is a primitive, but not a boxed primitive'));
+		forEach(v.primitives, function (primitive) {
+			st.equal(null, whichBoxedPrimitive(primitive), inspect(primitive) + ' is a primitive, but not a boxed primitive');
 		});
 		st.end();
 	});
 
 	t.test('boxed primitives', function (st) {
-		forEach(primitives, function (primitive) {
-			var boxed = Object(primitive);
-			var expected = boxed.constructor.name;
-			st.equal(typeof expected, 'string', 'expected is string');
-			st.equal(whichBoxedPrimitive(boxed), expected, debug(boxed, 'is a boxed primitive: ' + expected));
+		forEach(v.primitives, function (primitive) {
+			if (primitive != null) { // eslint-disable-line eqeqeq
+				var boxed = Object(primitive);
+				var expected = boxed.constructor.name;
+				st.equal(typeof expected, 'string', 'expected is string');
+				st.equal(whichBoxedPrimitive(boxed), expected, inspect(boxed) + ' is a boxed primitive: ' + expected);
+			}
 		});
 		st.end();
 	});
 
 	t.test('non-primitive objects', function (st) {
 		forEach(objects, function (object) {
-			st.equal(undefined, whichBoxedPrimitive(object), debug(object, 'is not a primitive, boxed or otherwise'));
+			st.equal(undefined, whichBoxedPrimitive(object), inspect(object) + ' is not a primitive, boxed or otherwise');
 		});
 		st.end();
 	});