Test against Float16Array only on supported runtime versions

Author: ericcornelissen

test/_constants.js

@@ -34,12 +34,18 @@ export const illegalArgumentLists = [
   { description: "typed array (int16)", value: new Int16Array() },
   { description: "typed array (int32)", value: new Int32Array() },
   { description: "typed array (int64)", value: new BigInt64Array() },
-  { description: "typed array (float16)", value: new Float16Array() },
   { description: "typed array (float32)", value: new Float32Array() },
   { description: "typed array (float64)", value: new Float64Array() },
   { description: "typed array (clamped)", value: new Uint8ClampedArray() },
 ];
 
+if (Object.prototype.hasOwnProperty.call(globalThis, "Float16Array")) {
+  illegalArgumentLists.push({
+    description: "typed array (float16)",
+    value: new Float16Array(),
+  });
+}
+
 /* OS platforms (based on https://nodejs.org/api/os.html#osplatform) */
 export const osAix = "aix";
 export const osDarwin = "darwin";