Merge pull request #323 from reinrl/patch-2

[WIP] Allow a list of possible return statuses (as a number or a string) which will get randomly picked from

Author: jakerella

README.md

@@ -479,6 +479,23 @@ $.mockjax({
 });
 ```
 
+The ability to provide an array of possible response statuses (from which the response
+for a given request will be randomly picked from):
+
+```javascript
+// Randomly fail
+$.mockjax({
+  url: "/restful/api",
+  status: [200,400,500]
+});
+
+// Randomly fail (with a preference towards success)
+$.mockjax({
+  url: "/restful/api",
+  status: [200,400,200,500,200]
+});
+```
+
 These forced error status codes will be handled just as if the server had
 returned the error: the `error` callback will get executed with the proper
 arguments.

src/jquery.mockjax.js

@@ -275,9 +275,14 @@
 						} else {
 							this.responseText = mockHandler.responseText;
 						}
-						if( typeof mockHandler.status === 'number' || typeof mockHandler.status === 'string' ) {
+						
+						if ($.isArray(mockHandler.status)) {
+							var idxStatus = Math.floor(Math.random() * mockHandler.status.length)
+							this.status = mockHandler.status[idxStatus];							
+						} else if (typeof mockHandler.status === 'number' || typeof mockHandler.status === 'string') {
 							this.status = mockHandler.status;
 						}
+						
 						if( typeof mockHandler.statusText === 'string') {
 							this.statusText = mockHandler.statusText;
 						}

test/test-core.js

@@ -247,6 +247,58 @@
 		});
 	});
 
+	t('Dynamic response status callback - list of statuses as an array (mix of successes and failures)', function(assert) {
+		var done = assert.async();
+		var possibleStatuses = [200,201,204,400,404,500];
+	  	var returnedStatuses = [];
+		var maxNumLoops = possibleStatuses.length * 50;
+		var numLoopsComplete = 0;
+
+		$.mockjax({
+			url: '/response-callback',
+			response: function() {
+				this.status = possibleStatuses;
+				this.statusText = 'Internal Server Error';
+			}
+		});
+
+		var completeCallback = function(xhr) {
+			assert.notEqual($.inArray(xhr.status, possibleStatuses), -1, 'Dynamically set random response status found');
+
+			// add this to our array of returned statuses (if it isn't there already)
+			if($.inArray(xhr.status, returnedStatuses) === -1) {
+				returnedStatuses.push(xhr.status);
+			}
+
+			// increment counter
+			numLoopsComplete++;
+
+			// if we made it this far without matching all possible statuses, fail!
+			if (numLoopsComplete >= maxNumLoops) {
+				assert.equal(returnedStatuses.length, possibleStatuses.length, "Did not randomly return all possible statuses (only returned: " + returnedStatuses.toString() + ")");					
+				
+				done();
+			}
+			
+			// we short-circuited early, so we can be done
+			if (returnedStatuses.length === possibleStatuses.length) {
+				done();	
+			}
+		}
+
+		do {
+			$.ajax({
+				url: '/response-callback',
+				dataType: 'text',
+				async: false,
+				data: {
+					response: 'Hello world'
+				},
+				complete: completeCallback
+			});
+		  } while ((numLoopsComplete < maxNumLoops) && (possibleStatuses.length !== returnedStatuses.length));
+	});
+
 	t('Default Response Settings', function(assert) {
 		var done = assert.async();