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Getting System.NullPointerException: Attempt to de-reference a null object error in Test Class
Dear All,
I have developed a class which is calling standard REST API to determine Daily Apex Exceution Limits. I am getting error when I am running test class for the same.
Below is my Apex Class:
Below is my test class:
Below is my mock class:
When I am trying to run tess class I am getting below error trace logs:
Kindly help me to pass the test class.
Many thanks in advance
Thanks & Regards,
Harjeet
I have developed a class which is calling standard REST API to determine Daily Apex Exceution Limits. I am getting error when I am running test class for the same.
Below is my Apex Class:
public class CurrentStorage{
public static void getStorage() {
//fetch session od of user
String sid = Userinfo.getSessionId();
//fetch Instance URL
String baseURL = System.URL.getSalesforceBaseUrl().toExternalForm();
//Building call out to Standard Salesforce Rest API
HttpRequest req = new HttpRequest();
req.setMethod('GET');
req.setEndpoint(baseURL+'/services/data/v41.0/limits');
req.setHeader('Authorization', 'OAuth '+ sid);
Http http = new Http();
HTTPResponse res = http.send(req);
Map<String, Object> m = (Map<String,Object>)JSON.deserializeUntyped(res.getBody());
Map<String, Object> dataStorage = (Map<String,Object>)m.get('DailyAsyncApexExecutions');
System.debug('Map: '+ dataStorage);
System.debug('Current Storage: ' + dataStorage.get('Remaining'));
If(Integer.valueof(dataStorage.get('Max'))*(0.8)<= (Integer.valueof(dataStorage.get('Max')) - Integer.valueof(dataStorage.get('Remaining')))){
Messaging.SingleEmailMessage message = new Messaging.SingleEmailMessage();
message.toAddresses = new String[] { 'abc@gmail.com','def@gmail.com'};
//message.optOutPolicy = 'FILTER';
message.subject = 'Async Apex Limits Threshold Warning';
message.plainTextBody = 'Your Org Limit of Daily Async Apex Execution reached 80% threshold for '+ baseURL;
Messaging.SingleEmailMessage[] messages = new List<Messaging.SingleEmailMessage> {message};
Messaging.SendEmailResult[] results = Messaging.sendEmail(messages);
if (results[0].success)
{
System.debug('The email was sent successfully.');
} else
{
System.debug('The email failed to send: ' + results[0].errors[0].message);
}
}
// Send Mail to people
}
}
Below is my test class:
@isTest
public class TestCurrentStorage {
static testMethod void validateLocationCallouts() {
RestRequest req = new RestRequest();
req.params.put('DailyAsyncApexExecutions', '250000');
//req.params.put('Max', '250000');
req.params.put('Remaining', '200000');
Test.startTest();
Test.setMock(HttpCalloutMock.class, new MockHttpResponse());
CurrentStorage.getStorage();
Test.stopTest();
}
}
Below is my mock class:
@isTest
global class mockHttpResponse implements HttpCalloutMock{
// Implement this interface method
global HTTPResponse respond(HTTPRequest req) {
System.assertEquals('GET', req.getMethod());
// Create a fake response
HttpResponse res = new HttpResponse();
res.setHeader('Content-Type', 'application/json');
res.setBody('{"Max": "250000","Remaining": "200000"}');
res.setStatusCode(200);
res.setStatus('OK');
return res;
}
}
When I am trying to run tess class I am getting below error trace logs:
Errors: System.NullPointerException: Attempt to de-reference a null object Stack Trace: Class.CurrentStorage.getStorage: Class.TestCurrentStorage.validateLocationCallouts:
Kindly help me to pass the test class.
Many thanks in advance
Thanks & Regards,
Harjeet
Sorry to say but May I know what you did. I am facing issue with test class and it seems to me that you copied and pasted my apex class as your answer which is absolutely working fine.
I need help on test class and I dont know what you are providing to me
I checked and compare your code and found changes which you have made. You have commented below lines from my class
//Map<String, Object> dataStorage = (Map<String,Object>)m.get('DailyAsyncApexExecutions') //System.debug('Map: '+ dataStorage);Also, you included one debug statement :
System.debug('m:'+m);So i ran test class after modifying code as mentioned by you and definitely test class is getting passed. But I have some very big question which needs clarifications from you
1. Why you commented Map<String, Object> dataStorage = (Map<String,Object>)m.get('DailyAsyncApexExecutions'); line from my class
2. That line which you have commented is checking daily async apex exceution limit and I am suspecting since you have commented the line "WILL IT HAVE AN EFFECT ON FUNCTIONALITY"
3. Code coverage sits at 61% and below lines still not covered as yesterday
Messaging.SingleEmailMessage message = new Messaging.SingleEmailMessage(); message.toAddresses = new String[] { 'abc@gmail.com','def@gmail.com'}; //message.optOutPolicy = 'FILTER'; message.subject = 'Async Apex Limits Threshold Warning'; message.plainTextBody = 'Your Org Limit of Daily Async Apex Execution reached 80% threshold for '+ baseURL; Messaging.SingleEmailMessage[] messages = new List<Messaging.SingleEmailMessage> {message}; Messaging.SendEmailResult[] results = Messaging.sendEmail(messages); if (results[0].success)If you answer my question no 1 and 2 which is definitely bothering me whether changes made by you have an affect on my existing class functionlity and help me to increase my code coverage as sugeted point no 3 then I will definitely choose your answer as best answer.
Many thanks in advance
Thanks & Regards,
Harjeet
Thanks for your quick response. I copie dmodified code as posted by you above and run the code from anonymous block using CurrentSTORAGE.getStorage(); but it is returning error FATAL_ERROR System.NullPointerException: Attempt to de-reference a null object
Kindly help
Thanks & Regards,
Harjeet
Error which I mentioned above is throwing for below mentioned line:
If(Integer.valueof(m.get('Max'))*(0.8)<= (Integer.valueof(m.get('Max') ) - Integer.valueof(m.get('Remaining'))) || Test.isRunningTest())and i checked debug logs generated by anonymouus block and found below;
Kindly help