Add test for default error value which is now an empty array

Author: rgk

index.js

@@ -20,7 +20,9 @@ export function convert(total, length, output = []) {
  * @returns {Array<boolean>} A boolean array representing the result of the bitwise merge operation.
  */
 export function BAM(arrays = [], or = true) {
-  if (!Array.isArray(arrays) || arrays.length === 0) return [];
+  if (!Array.isArray(arrays) || arrays.length === 0 || !arrays.every(arr => Array.isArray(arr))) {
+    return [];
+  }
 
   const data = {
     length: arrays.reduce(

package.json

@@ -7,6 +7,9 @@
     "type": "git",
     "url": "https://github.com/rgk/boolean-array-merge.git"
   },
+  "bugs": {
+    "url": "https://github.com/rgk/boolean-array-merge/issues"
+  },
   "scripts": {
     "test": "node ./test.js"
   },

test.js

@@ -88,7 +88,17 @@ assert.deepStrictEqual(
   BAM(
     {}
   ),
-  false
+  [ ]
+);
+
+// Make sure it only accepts arrays nested.
+assert.deepStrictEqual(
+  BAM(
+    [
+      [ true, false, true ], {}
+    ]
+  ),
+  [ ]
 );
 
 // Check if no value fails.