How verifying Trigger using test class which creates a new record in other object ? (how to get 100% code covarage)

Hello everyone,

For learnig purpose, I was creating a tigger with following functionality :

There is a canditate object with a checkbox "Active" ,
Trigger functionality is to create a new record in "Review" object whenever Active becomes True.

This is the code of Trigger :

trigger create_review_on_active on Candidate__c (after update) {
	//Creating a list of new record of Review__c
	list <Review__c> newrecord = new list<Review__c>();
	
	for (Candidate__c objacc : Trigger.new){
		if (objacc.active__c == True)
		{
			Review__c objectr = new Review__c();
			objectr.name = 'Tejender Review'; // Just Creating record with fixed name for test Purpose. (Please suggest a way to use candidate name here.)
			newrecord .add(objectr);
 }

	insert newrecord ;
}
}

To Test the Above code, Following is the Testclass :

@isTest
public class Candidate_Review {
    
    @isTest static void candidate_review_test(){
    Candidate__c necan = new Candidate__c(name = 'TMJ');
    
    insert necan;
    
        
        Test.startTest();
        necan.Active__c = True;
        
		//At this point , i am not able to understand , how to Test whether the trigger is working fine or not ?
		
        Test.stopTest();
        
        
    }
}

Question :
As per my knoweldge, for test class it is good to create a sample data so that i have created "necan" in test class but i am not able to understand how should i
verify the new record of Review__c after Active__c becomes true and how should i get the proper code coverage.

Please suggest any solution so that can i verify this trigger using test class and
also please provide your expert comments about any good practice that should have been used in above codes as i am a beginer to APEX. :)

Thanks in advance :)

February 9, 2017
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Best Answer chosen by Tejender Mohan 9

Tejender Mohan 9
Hi
I got the answer on stackexchange. Thanks :)

http://salesforce.stackexchange.com/questions/159631/how-to-verify-trigger-using-test-class-which-creates-a-new-record-in-other-objec/159634?noredirect=1#comment236811_159634

February 9, 2017
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Tejender Mohan 9
<head> How to verify the Trigger * <head>

I am also not able to find any option to update my question's headline,

I would be obliged If someone can help me with this too. :)

February 9, 2017
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