each unit parts must be tested

For completeness of the test cases we could add tests for the read method. So every method can have individual test cases.

Author: lumosmind

1-js/04-object-basics/04-object-methods/7-calculator/_js.view/test.js

@@ -15,6 +15,11 @@ describe("calculator", function() {
     afterEach(function() {
       prompt.restore();
     });
+    
+    it('the read get two values and saves them as object properties', function () {
+      assert.equal(calculator.a, 2);
+      assert.equal(calculator.b, 3);
+    });
 
     it("the sum is 5", function() {
       assert.equal(calculator.sum(), 5);