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Unit Test, Callout No Response with Static Resource
Bit stuck on another one i'm afraid, i am trying to write a unit test for a bulk APEX class.
The class has a calllout to the google api, so i have created a static resource which i am feeding in via a mock, so i can complete testing of processing the JSON that is returned. However for some reason the response is always empty.
Now the very odd thing is that if i use exactly the same callout/JSON code, and the same mock code on a previous @future call, then it does return fine.
Here is the class:
global class mileage_bulk implements Database.Batchable<sObject>,
Database.AllowsCallouts
{
global Database.QueryLocator start(Database.BatchableContext BC)
{
String query = 'SELECT Id,Name,Amount,R2_Job_Ref__c,R2_Shipping_Post_Code__c,Shipping_Postcode_2__c FROM Opportunity WHERE R2_Shipping_Post_Code__c != null';
return Database.getQueryLocator(query);
//system.debug('Executing'+query);
}
global void execute(Database.BatchableContext BC, List<Opportunity> scope)
{
system.debug(scope);
for(Opportunity a : scope)
{
String startPostcode = null;
startPostcode = EncodingUtil.urlEncode('HP27DU', 'UTF-8');
String endPostcode = null;
String endPostcodeEncoded = null;
if (a.R2_Shipping_Post_Code__c != null){
endPostcode = a.R2_Shipping_Post_Code__c;
Pattern nonWordChar = Pattern.compile('[^\\w]');
endPostcode = nonWordChar.matcher(endPostcode).replaceAll('');
endPostcodeEncoded = EncodingUtil.urlEncode(endPostcode, 'UTF-8');
}
Double totalDistanceMeter = null;
Integer totalDistanceMile = null;
String responseBody = null;
Boolean firstRecord = false;
String ukPrefix = 'UKH';
if (a.R2_Job_Ref__c != null){
if ((a.R2_Job_Ref__c).toLowerCase().contains(ukPrefix.toLowerCase())){
system.debug('Is Hemel Job');
startPostcode = EncodingUtil.urlEncode('HP27DU', 'UTF-8');
} else {
system.debug('Is Bromsgrove Job');
startPostcode = EncodingUtil.urlEncode('B604AD', 'UTF-8');
}
}
// build callout
Http h = new Http();
HttpRequest req = new HttpRequest();
req.setEndpoint('http://maps.googleapis.com/maps/api/directions/json?origin='+startPostcode+'&destination='+endPostcodeEncoded+'&units=imperial&sensor=false');
req.setMethod('GET');
req.setTimeout(60000);
system.debug('request follows');
system.debug(req);
try{
// callout
HttpResponse res = h.send(req);
// parse coordinates from response
JSONParser parser = JSON.createParser(res.getBody());
responseBody = res.getBody();
system.debug(responseBody);
while (parser.nextToken() != null) {
if ((parser.getCurrentToken() == JSONToken.FIELD_NAME) &&
(parser.getText() == 'distance')){
parser.nextToken(); // object start
while (parser.nextToken() != JSONToken.END_OBJECT){
String txt = parser.getText();
parser.nextToken();
//system.debug(parser.nextToken());
//system.debug(txt);
if (firstRecord == false){
//if (txt == 'text'){
//totalDistanceMile = parser.getText();
system.debug(parser.getText());
//}
if (txt == 'value'){
totalDistanceMeter = parser.getDoubleValue();
double inches = totalDistanceMeter*39.3701;
totalDistanceMile = (integer)inches/63360;
system.debug(parser.getText());
firstRecord = true;
}
}
}
}
}
} catch (Exception e) {
}
//system.debug(accountId);
system.debug(a);
system.debug(endPostcodeEncoded);
system.debug(totalDistanceMeter);
system.debug(totalDistanceMile);
// update coordinates if we get back
if (totalDistanceMile != null){
system.debug('Entering Function to Update Object');
a.DistanceM__c = totalDistanceMile;
a.Shipping_Postcode_2__c = a.R2_Shipping_Post_Code__c;
//update a;
}
}
update scope;
}
global void finish(Database.BatchableContext BC)
{
}
}
and here is the test class;
/**
* This class contains unit tests for validating the behavior of Apex classes
* and triggers.
*
* Unit tests are class methods that verify whether a particular piece
* of code is working properly. Unit test methods take no arguments,
* commit no data to the database, and are flagged with the testMethod
* keyword in the method definition.
*
* All test methods in an organization are executed whenever Apex code is deployed
* to a production organization to confirm correctness, ensure code
* coverage, and prevent regressions. All Apex classes are
* required to have at least 75% code coverage in order to be deployed
* to a production organization. In addition, all triggers must have some code coverage.
*
* The @isTest class annotation indicates this class only contains test
* methods. Classes defined with the @isTest annotation do not count against
* the organization size limit for all Apex scripts.
*
* See the Apex Language Reference for more information about Testing and Code Coverage.
*/
@isTest
private class mileage_bulk_tests{
static testMethod void myUnitTest() {
Opportunity opp1 = new Opportunity(name = 'Google Test Opportunity',R2_Job_Ref__c = 'UKH12345',R2_Shipping_Post_Code__c = 'AL35QW',StageName = 'qualified',CloseDate = Date.today());
insert opp1;
Opportunity opp2 = new Opportunity(name = 'Google Test Opportunity 2',StageName = 'qualified',CloseDate = Date.today());
insert opp2;
Opportunity opp3 = new Opportunity(name = 'Google Test Opportunity 3',R2_Job_Ref__c = 'UKB56789',R2_Shipping_Post_Code__c = 'AL35QW',StageName = 'qualified',CloseDate = Date.today());
insert opp3;
StaticResourceCalloutMock mock = new StaticResourceCalloutMock();
mock.setStaticResource('googleMapsJSON');
mock.setStatusCode(200); // Or other appropriate HTTP status code
mock.setHeader('Content-Type', 'application/json'); // Or other appropriate MIME type like application/xml
//Set the mock callout mode
Test.setMock(HttpCalloutMock.class, mock);
system.debug(opp1);
system.debug(opp1.id);
//Call the method that performs the callout
Test.startTest();
mileage_bulk b = new mileage_bulk();
database.executeBatch((b), 10);
Test.stopTest();
}
}
Help greatly appreciated!
Thanks
Gareth
Also, if i run this class manually by triggering it from force IDE it runs as expected.
Cheers
Gareth