"System.CalloutException: Test Webservice future callout failed if there is QPID enqueue message and API version for Callout class >= 34
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"System.CalloutException: Test Webservice future callout failed if there is QPID enqueue message and API version for Callout class >= 34

Spring 16

Last updated 4 days ago ·Reference W-2979657 ·Reported By 71 users

In Review

- Test Webservice future callout failed if there is QPID enqueue message and API version for Callout class >= 34.

1. There are multiple ways to trigger a QPID enqueue message, in this case, use insert network_member as an example.
- Enable community
- Add "System Admin" Profile as community member.

2. Create Apex class which make callout. Save it as API version 36.

public class DummyCalloutService{
public static void doCallout() {
HttpRequest req = new HttpRequest();
Http http = new Http();
HTTPResponse res = http.send(req);

//invoke callout from within future
@future (callout=true)
public static void CalloutWithinFuture() {

3. Create Apex Test class to invoke callout. API version doesn't matter.

public class CalloutErrorTest {
public class DummyCalloutServiceMock implements HttpCalloutMock {
HttpRequest originalRequest;
HttpRequest getRequest() {
return originalRequest;

public HTTPResponse respond(HTTPRequest req) {
HTTPResponse response = new Httpresponse();
return response;

static User insertUser() {
user u = new User(alias = 'dummyusr', email='example@example.com', emailencodingkey='UTF-8', lastname='Testing', languagelocalekey='en_US',
localesidkey='en_US', profileid = UserInfo.getProfileId(),
timezonesidkey='America/Los_Angeles', username='dummycallout@testorg.com');
Database.DMLOptions dlo = new Database.DMLOptions();
dlo.EmailHeader.triggerUserEmail = false;
return u;

static testMethod void UserInsertFail() {

User u = insertUser();

Test.setMock(HttpCalloutMock.class, new DummyCalloutServiceMock());
4. Run test, failed: System.CalloutException: You have uncommitted work pending. Please commit or rollback before calling out.
5. Change the API version of callout class to <34, rerun the test, it will pass.

The problem is like this:

In this example, the organization have setup a community which have system admin profile, so insert a system admin user will trigger a network member record insertion DML operation and this operation using QPID to enqueue a message. Thus when we do callout, this job has not commit or rollback cause the failure.

QPID definition:
Cross-platform enterprise messaging system which implements the Advanced Message Queuing Protocol (AMQP).

Additional Information:
This bug can also be reproduced with steps described in this previous KI:

Lower the API version of the Apex class which make the callout to 33 or lower.

Is it Fixed?

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