Updated the test system

test/matches.test.js

@@ -0,0 +1,16 @@
+const expect = require('expect');
+const {matches} = require('./_30s.js');
+
+test('matches is a Function', () => {
+  expect(matches).toBeInstanceOf(Function);
+});
+test('Matches returns true for two similar objects', () => {
+  expect(
+    matches({ age: 25, hair: 'long', beard: true }, { hair: 'long', beard: true })
+  ).toBeTruthy();
+});
+test('Matches returns false for two non-similar objects', () => {
+  expect(
+    matches({ hair: 'long', beard: true }, { age: 25, hair: 'long', beard: true })
+  ).toBeFalsy();
+});