WarehousePullData Example

1_WarehousePull.cls

public with sharing class WarehousePullData {

	public WarehousePullData() {}
		//WarehousePullData.pullData();
	public static String pullData() {		
		// Instantiate a new http object
		    Http h = new Http();

		// Instantiate a new HTTP request, specify the method (GET) as well as the endpoint
		    HttpRequest req = new HttpRequest();
		    req.setEndpoint('http://warehousedatapush.herokuapp.com/');
		    req.setMethod('GET');

		// Send the request, and return a response
		    HttpResponse res = h.send(req);
		    Map<String, Object> data = (Map<String, Object>)JSON.deserializeUntyped(res.getBody());  
		
			List<Object> items = (List<Object>)data.get('Items');
			List<Merchandise__c> new_items = new List<Merchandise__c>();
			for(Object item : items) {
				Map<String, Object> item_data = (Map<String, Object>)item;
				Merchandise__c merch = new Merchandise__c();
				merch.Name = (String)item_data.get('Name');
				merch.Quantity__c = (Decimal)item_data.get('Quantity');
				merch.Price__c = (Decimal)item_data.get('Price');
				new_items.add(merch);
			}
			
			
			insert new_items;
			return 'Done';
	}


}

1_WarehousePull_Test.cls

@isTest
public class WarehousePullTest {
	@isTest
	public static void testPullData() {
		List<Merchandise__c> merch = [SELECT ID from Merchandise__c WHERE Name = 'Super Laptop'];
		
		System.assertEquals(merch.size(),1);
	}

}

2_WarehousePull.cls

	static public Boolean createBaselineData() {
		Merchandise__c m = new Merchandise__c(Name='Rack Server',Price__c=1245.99,Quantity__c=500);
		insert m;
		
		Invoice__c i = new Invoice__c();
		insert i;
		
		Line_Item__c li = new Line_Item__c(Name='1',Quantity__c=10,Merchandise__c=m.Id,Invoice__c=i.Id);
		insert li;
		
		return true;	
	}

3_WarehousePull.cls

NAME,Price__c,Quantity__c
Super Laptop,1299.00,170

4_WarehousePull.cls

WarehousePullData.createBaselineData();
		
List<Merchandise__c> merchandise = Test.loadData(Merchandise__c.sObjectType, 'MerchData');
update merchandise;
		
		

5_WarehousePull.cls

@isTest
global class WarehouseMock implements HttpCalloutMock {
    // Implement this interface method 
    
    global HTTPResponse respond(HTTPRequest req) {
        HttpResponse res = new HttpResponse();
        res.setHeader('Content-Type', 'application/json');
        res.setBody('{ "Items": [ { "Name": "Laptop From Endpoint", "Price": 2999.99, "Quantity": 4 }, { "Name": "Super Duper Laptop", "Price": 3999.99, "Quantity": 4 } ] }');
        res.setStatusCode(200);
        return res;
    }
}

6_WarehousePull.cls

Test.startTest();
	// Set mock callout class  
	Test.setMock(HttpCalloutMock.class, new WarehouseMock());

	// Call class that utilizes this endpoint 
	WarehousePullData.pullData();
Test.stopTest();

7_WarehousePull.cls

List<Merchandise__c> merch = [SELECT ID from Merchandise__c WHERE Name = 'Laptop From Endpoint'];
		
System.assertEquals(merch.size(),1);

8_WarehousePull.cls

public with sharing class WarehousePullData {

	public WarehousePullData() {}
		//WarehousePullData.pullData();
	public static String pullData() {		
		// Instantiate a new http object
		    Http h = new Http();

		// Instantiate a new HTTP request, specify the method (GET) as well as the endpoint
		    HttpRequest req = new HttpRequest();
		    req.setEndpoint('http://warehousedatapush.herokuapp.com/');
		    req.setMethod('GET');

		// Send the request, and return a response
		    HttpResponse res = h.send(req);
		    Map<String, Object> data = (Map<String, Object>)JSON.deserializeUntyped(res.getBody());  
		
			List<Object> items = (List<Object>)data.get('Items');
			List<Merchandise__c> new_items = new List<Merchandise__c>();
			for(Object item : items) {
				Map<String, Object> item_data = (Map<String, Object>)item;
				Merchandise__c merch = new Merchandise__c();
				merch.Name = (String)item_data.get('Name');
				merch.Quantity__c = (Decimal)item_data.get('Quantity');
				merch.Price__c = (Decimal)item_data.get('Price');
				new_items.add(merch);
			}
			
			
			insert new_items;
			return 'Done';
	}



	static public Boolean createBaselineData() {
		Merchandise__c m = new Merchandise__c(Name='Rack Server',Price__c=1245.99,Quantity__c=500);
		insert m;
		
		Invoice__c i = new Invoice__c();
		insert i;
		
		Line_Item__c li = new Line_Item__c(Name='1',Quantity__c=10,Merchandise__c=m.Id,Invoice__c=i.Id);
		insert li;
		
		return true;	
	}

	@isTest
	public static void testPullData() {
		WarehousePullData.createBaselineData();
		
		List<Merchandise__c> merchandise = Test.loadData(Merchandise__c.sObjectType, 'MerchData');
		update merchandise;
		
		Test.startTest();
			// Set mock callout class  
		 	Test.setMock(HttpCalloutMock.class, new WarehouseMock());

			// Call class that utilizes this endpoint 
			WarehousePullData.pullData();
		Test.stopTest();
		
		List<Merchandise__c> merch = [SELECT ID from Merchandise__c WHERE Name = 'Laptop From Endpoint'];
		
		System.assertEquals(merch.size(),1);
	}

}

8_WarehousePull_Test.cls

@isTest
public class WarehousePullTest {

  static public Boolean createBaselineData() {
        Merchandise__c m = new Merchandise__c(Name='Rack Server',Price__c=1245.99,Quantity__c=500);
        insert m;
        
        Invoice__c i = new Invoice__c();
        insert i;
        
        Line_Item__c li = new Line_Item__c(Name='1',Quantity__c=10,Merchandise__c=m.Id,Invoice__c=i.Id);
        insert li;
        
        return true;    
    }  

  @isTest
  public static void testPullData() {
        WarehousePullTest.createBaselineData();
        
        List<Merchandise__c> merchandise = Test.loadData(Merchandise__c.sObjectType, 'MerchData');
        update merchandise;
        
        Test.startTest();
            // Set mock callout class  
            Test.setMock(HttpCalloutMock.class, new WarehouseMock());
 
            // Call class that utilizes this endpoint 
            WarehousePullData.pullData();
        Test.stopTest();
        
        List<Merchandise__c> merch = [SELECT ID from Merchandise__c WHERE Name = 'Laptop From Endpoint'];
        
        System.assertEquals(merch.size(),1);
    }
}