QUnit Test

ASYNCHRONOUS CALLBACKS TEST CASES

"use strict";
var personsArr = [
	{
		"firstName": "John",
		"lastName": "Steward"
	},
    {
		"firstName": "Steven",
		"lastName": "Bombardier"
	}
];
	
function getPersons(callback) { 
	$.ajax(
	    {
	        type: "POST",
	        dataType: "json",
	        data: "{}",
	        contentType: "application/json",
	        url: "persons.json",
	        success: function(response) {            
	            callback(response); // The callback parameter is a pointer to a function 
				//and will be fired once the Ajax request is successfully completed. 
	        }
	    }
	 );   
}


/*********** ACTUAL QUNIT TEST CASES FOR ASYNCHRONOUS CALLBACKS  **************/

module( "JSON syntax test" );
test("getPerson1", function() {	
	stop(); // stop progression until Ajax
	// call above getPersons function
	getPersons(	 
		function(response) {
			try {
				var persons = response["persons"];
				var person = persons[1].firstName;
			}
			catch(e) {	
				console.log("check error " + e.message);
			}
			finally {
				equal(person, "Steven","check firstName equality");
				start();
			}
		}
	);
});
test("getPerson2", function() {		
	stop(); // stop progression until Ajax
	// call above getPersons function
	getPersons(	 
		function(response) {
			try {
				var persons = response["persons"];
				var person = persons[0].lastName;
			}
			catch(e) {	
				console.log("check error " + e.message);
			}
			finally {
				equal(person, "Steward","check lastName equality");
				start();
			}
		}
	);
});

module( "JSON local/remote test" );
test("getPerson3", function() {	
	stop(); // stop progression until Ajax
	// call above getPersons function
	getPersons(	 
		function(response) {
			try {
				var persons = response["persons"];
				var person = persons[0].lastName;
			}
			catch(e) {	
				console.log("check error " + e.message);
			}
			finally {
				deepEqual(persons, personsArr, "compare JSON from file
                		with locally declared JSON");
				start();
			}
		}
	);
});

test("getPerson4", function() {	
	stop(); // stop progression until Ajax
    
	// add additional entry to the local JSON
	var obj = new Object();
	obj.firstName = "Johny";
	obj.lastName = "James";
	personsArr[2]=obj;
    
	// call above getPersons function
	getPersons(	 
		function(response) {
			try {
				var persons = response["persons"];
				var person = persons[0].lastName;
			}
			catch(e) {	
				console.log("check error " + e.message);
			}
			finally {
				notDeepEqual(persons, personsArr, "compare JSON from file with 
                		locally declared JSON with locally added entry, not equal");
				start();
			}
		}
	);
});
 test("getPerson5", function() {	
	stop(); // stop progression until Ajax
	// call above getPersons function
	getPersons(	 
		function(response) {
			// filter only last name keys
			var str = JSON.stringify(response,function(key,value) {
				switch(key) {
					case "firstName":
						return undefined;
					case "lastName":
						return value;
					default:
						return value;		
				}
			});
			var obj = JSON.parse(str);
			try {
				var persons = obj["persons"];
				var personLast = persons[0].lastName;
			}
			catch(e) {	
				console.log("check error " + e.message);
			}
			finally {
				equal(personLast, personsArr[0].lastName, "compare JSON lastName 
                		entry from file with locally declared JSON, filtered method");
				start();
			}
		}
	);
});