Clean up a bit, fix the deno test

Author: papandreou

test/types/array-like-type.spec.js

@@ -148,10 +148,11 @@ describe('array-like type', () => {
     describe('when comparing instances of different classes that are identified by the same array-like subtype', () => {
       clonedExpect.addType({
         name: 'subtypeOfSimpleArrayLike',
-        base: 'simpleArrayLike',
+        base: 'array-like',
         identify(value) {
           return value && value._subtypeOfSimpleArrayLike;
         },
+        numericalPropertiesOnly: true,
       });
 
       class MyArray extends Array {
@@ -169,31 +170,32 @@ describe('array-like type', () => {
       }
 
       it('should succeed when the elements match', () => {
-        const a = new MyArray();
-        a.push(123);
-        const b = new MyOtherArray();
-        b.push(123);
+        const a = new MyArray(1);
+        a.length = 1;
+        a[0] = 123;
+        const b = new MyOtherArray(1);
+        b.length = 1;
+        b[0] = 123;
 
         clonedExpect(a, 'to equal', b);
         clonedExpect(b, 'to equal', a);
       });
 
       it('should fail with a diff when the elements do not match', () => {
-        const a = new MyArray();
-        a.push(123);
-        const b = new MyOtherArray();
-        b.push(456);
+        const a = new MyArray(1);
+        a.length = 1;
+        a[0] = 123;
+        const b = new MyOtherArray(1);
+        b.length = 1;
+        b[0] = 456;
 
         expect(
           () => clonedExpect(a, 'to equal', b),
           'to throw',
-          'expected [ undefined, 123, _subtypeOfSimpleArrayLike: true ]\n' +
-            'to equal [ undefined, 456, _subtypeOfSimpleArrayLike: true ]\n' +
+          'expected [ 123 ] to equal [ 456 ]\n' +
             '\n' +
             '[\n' +
-            '  undefined,\n' +
-            '  123, // should equal 456\n' +
-            '  _subtypeOfSimpleArrayLike: true\n' +
+            '  123 // should equal 456\n' +
             ']'
         );
       });