Ok, so I have created my first Apex Class.

I was able to save it to my sandbox, and everything works as planned. I am getting an error when trying to deploy to my production server, ok, so I have created a test class, but I don't understand why/how and what is needed.

I get 2 main errors: 1. Assertion error

2. only 72% of code is covered.

I'd appreciate a pointer as to what's and how I should attack this.

My code inherits from inbound email:

My inboundEmail class:

global class inboundEmail implements Messaging.InboundEmailHandler {

    global Messaging.InboundEmailResult handleInboundEmail(Messaging.InboundEmail email, Messaging.InboundEnvelope envelope) {
        Messaging.InboundEmailResult result = new Messaging.InboundEmailresult();


    Account account;
    Lead lead;
    String [] mFromUserParams;
    String [] sourceText;
    String mCaseObject;
        
    try{
    	sourceText = email.toAddresses[0].split('@');
    	String [] mParams = sourceText[0].split('\\.');
    	mFromUserParams = email.fromAddress.split('@');
    	mCaseObject = mParams[0];
    	if (mCaseObject == 'lead'){ 
	        lead = new Lead();
	        lead.LastName = mFromUserParams[0];
	        lead.Company = email.fromAddress;
	        lead.OwnerId = mParams[1];
	        lead.LeadSource = mParams[2];
	        lead.Email = email.fromAddress; 
	        lead.RequirementsDescription__c = email.subject + email.plainTextBody;
	        
	        insert lead;
	        result.success = true;
    	}  else if (mCaseObject == 'case'){
    		
    	}  else {
    		result.success = false;
    	}
    }catch(Exception e){
        result.success = false;
        result.message = 'Oops, I failed.';
    }
    return result;
}
}

My inboundEmailText class as currently configured: What I did, is create a new envelope, an email and a header, and populated all the fields that are to be populated as if a real email is coming. Is that what's the idea with testing?

Where is my problem?

@isTest
private class inboundEmailTest {

 // Success Case
   public static testMethod void inboundEmail(){
        
        // Create a new email, envelope object and Header
        Messaging.InboundEmail email = new Messaging.InboundEmail();
        Messaging.InboundEnvelope envelope = new Messaging.InboundEnvelope();
        Messaging.InboundEmail.Header hditem= new Messaging.InboundEmail.Header();

		email.headers = new Messaging.InboundEmail.Header[1];
		hditem.name='Date';
		hditem.value='Tue, 28 Apr 2009 14:08:37 -0700';
		email.headers[0]=hditem;

		envelope.toAddress = 'lead.idinboundmail@eihnp2ha.c-cpeneac.cl.apex.sandbox.salesforce.com';
        envelope.fromAddress = 'user@acme.com';
        email.subject = 'Please contact me';
        email.fromName = 'Test From Name';
        email.plainTextBody = 'Hello, this a test email body. for testing purposes only.Phone:123456 Bye';

        // setup controller object
        inboundEmail catcher = new inboundEmail();
        Messaging.InboundEmailResult result = catcher.handleInboundEmail(email, envelope);
        System.assertEquals( result.success  ,true);
    }
}

on deployment, I get that most lines from inboundEmail class are not covered.

As for the assertion test - shouldn't I check that the actual class did what it's supposed to?  why does the check must be: false?