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

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

Spring 16

Last updated 2019-10-11 ·Reference W-2979657 ·Reported By 71 users

In Review

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

Repro
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();
req.setMethod('GET');
req.setEndpoint('https://nulltestservice.ap2.force.com/services/apexrest/nulltest');
Http http = new Http();
HTTPResponse res = http.send(req);
}

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

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

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

public HTTPResponse respond(HTTPRequest req) {
HTTPResponse response = new Httpresponse();
response.setBody('OK');
response.setStatusCode(200);
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;
Database.insert(u,dlo);
return u;
}

static testMethod void UserInsertFail() {

User u = insertUser();

Test.startTest();
System.runAs(u){
Test.setMock(HttpCalloutMock.class, new DummyCalloutServiceMock());
DummyCalloutService.CalloutWithinFuture();
}
Test.stopTest();
}
}
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.

CAUSE:
The problem is like this:
...
doSomethingThatEnqueuesAMessage();
doSomethingThatDoesACallout()
...

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:
https://success.salesforce.com/issues_view?id=a1p30000000jbNMAAY

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

Is it Fixed?

AP0 AP3 AP4 AP5 AP6 AP7 AP8 AP9 AP10 AP11 AP12 AP13 AP14 AP15 AP16 AP17 AP18 AP19 AP20 AP21 AP22 AP28 CS1 CS2 CS3 CS4 CS5 CS6 CS7 CS8 CS9 CS10 CS109 CS108 CS107 CS106 CS105 CS102 CS101 CS100 CS115 CS110 CS117 CS114 CS113 CS112 CS111 CS11 CS116 CS12 CS129 CS128 CS125 CS124 CS123 CS137 CS138 CS13 CS133 CS132 CS14 CS148 CS142 CS15 CS152 CS151 CS16 CS17 CS18 CS19 CS20 CS21 CS22 CS23 CS24 CS25 CS26 CS27 CS28 CS29 CS30 CS31 CS32 CS33 CS34 CS35 CS36 CS37 CS40 CS41 CS42 CS43 CS44 CS45 CS47 CS50 CS51 CS52 CS53 CS54 CS57 CS58 CS59 CS60 CS61 CS62 CS63 CS64 CS65 CS66 CS67 CS68 CS69 CS70 CS71 CS72 CS73 CS74 CS75 CS76 CS77 CS78 CS79 CS80 CS81 CS82 CS83 CS84 CS85 CS86 CS87 CS88 CS89 CS90 CS91 CS92 CS93 CS94 CS95 CS96 CS97 CS98 CS99 EU7 EU8 EU10 EU12 EU13 EU14 EU15 EU16 EU17 EU18 EU19 EU25 EU26 EU27 EU28 EU29 EU30 EU31 EU32 NA104 NA107 NA109 NA100 NA101 NA103 NA102 NA105 NA119 NA116 NA110 NA118 NA112 NA111 NA115 NA114 NA113 NA117 NA121 NA124 NA122 NA120 NA126 NA129 NA130 NA134 NA136 NA135 NA132 NA131 NA146 NA142 NA141 NA154 NA155 NA171 NA174 NA196 NA21 NA32 NA37 NA39 NA44 NA45 NA46 NA47 NA49 NA52 NA53 NA54 NA57 NA58 NA59 NA60 NA61 NA62 NA64 NA65 NA66 NA67 NA68 NA69 NA70 NA71 NA72 NA73 NA74 NA75 NA76 NA77 NA79 NA80 NA81 NA82 NA83 NA84 NA85 NA86 NA87 NA88 NA89 NA90 NA91 NA92 NA93 NA94 NA95 NA96 NA97 NA98 NA99 UM1 UM2 UM3 UM4 UM5

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