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SalesForce Deployment and Assertions

In this particular section let us explore about various SalesForce Deployment and Assertions.
First , let us see “What is Deployment?” The answer is very simple, Deployment is nothing but connection between sandbox and PRD environment (production organization)

Several mechanisms of Deployment are:
                             |→    Change set

                             |→     Force.com eclipse

                             |→      ANT builder

                             |→      WEB SERVICE

Hot Deployment:

During the Hot Deployment , if we exclude an object from the sandbox then it will be omitted from the PRD environment as well . However, PRD environment can be modified by Development environment without stopping the apps at prod area.

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Differences Between The SOQL and SOSL :

Let us evaluate between SOQL (Salesforce Object Query Language) and SOSL (Salesforce Object Search Language).

SOQL Syntax:-

  • Select fn1,fn2,fn3,- – –  – fnn from < S object >

SOSL Syntax:-

  • List < list > ss=Find ‘ pattern’ IN Fields

Returning field name1, field name2, – – – –  –

Assertions

  • Assertions are used to terminate the execution of the program based upon a condition
  • If some condition matches, the program won’t execute
  • If the condition is true, execution stops at that point or else it will continue till the end .

How to Put Assertions into the Code:

There are generally two ways to Put Assertions into a Code:

1.System.asserts equals ( val1, val2, ‘string’) ;
2.System.asserts not equals ( var1, var2, ‘string’) ;
 

Winter ’12 for developers’

       →  App logic

1) Public Test Classes In Apex:

  • Classes annotated with @istest no longer have to be private. You can now create public test classes that expose common methods for test data creation . These public methods can be called by tests outside the test class for setting up data that the tests need to run against.
  • Let us look at an example of a public test class that contains utility methods for test data creation:

             @ Is Test

                 public class TestUtil {

                 public static void create TestAccounts () {

                  // create some test accounts

                 }

                 public static void create TestContacts () {

                   // create some test contacts

                  }

                }                           

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2) JSON Support In Apex:

Native classes for serializing and deserializing JSON

  • Native Java Script Objects Notation (JSON) has been added to Apex in Winter’12
  • Using JSON classes, you can now parse (resolve) JSON content and serialize Apex objects in the JSON format

The following classes have been added for JSON support:

  • System.JSON: It contains methods for serializing Apex objects into JSON format and deserializing JSON content that was already serialized using the serialize method in this class.
  • System.JSONGenerator:  Contains methods to serialize Apex objects into JSON content using the standard JSON encoding
  • System.JSONParser: Represents a parser for JSON– encoded content

Eg:List invoices = new List ();
     invoices.add (inv1);
     invoices.add (inv2);
     //Serialize the list of Invoice Statement objects.
     String JSON String = JSON.serialize (invoices);
     System.debug (‘serialized list of invoices into JSON format:’+ JSON String);
      // Deserializing the list of invoices from the JSON string
      List deserialized Invoices = (list) JSON.deserialize(JSON String, List.class);
       System.assertEquals(invoices.size(), deserializedInvoices.size());

Eg: Http httpProtocal = new Http();
      // create an HTTP request to send.
      Http Request request = new Http request();
 …..
       Http Response response = http protocol.send (request);
        // Create JSON parser with the http response body
       // as an input string.
       JSON Parser parser= JSON.create Parser (response.get Body());

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3) Async Test API (Beta):

Integrate With Testing For Continuous Integration App’s:
Two API objects are now available to enable starting asynchronous test runs as well as for checking test results:
Apex test queue item: Represents a single Apex class in the Apex Job Queue
Apex test result:Represents the result of an Apex test method execution
You can use this functionality to better integrate with test execution in continuous integration applications.

4) New System Methods:

New methods are being used for determining the execution content in the system class:
isBatch:
Determines if the currently executing code is invoked by batch Apex Job 
isFuture:
Determines if the currently executing code is invoked by code containing in a method annotated with @future
isScheduled:
Determines if the currently executing code is invoked by a scheduled Apex job.

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