Test class for Webservice Callout

Webservice class:

-----------------

globalclass RecordCreationservicecls {

       webservicestatic String createRecord(String jsonString){

              //Process to create a record

              return'';

       }

}

Generated class for the above web service class “RecordCreationservicecls”

//Generated by wsdl2apex
publicclass GeneratedRecordCreationService {

publicclass LogInfo {

public String category;

public String level;

private String[] category_type_info = new String[]{'category','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] level_type_info = new String[]{'level','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'category','level'};

    }

publicclass AllowFieldTruncationHeader_element {

public Boolean allowFieldTruncation;

private String[] allowFieldTruncation_type_info = new String[]{'allowFieldTruncation','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'allowFieldTruncation'};

    }

publicclass DebuggingHeader_element {

public GeneratedRecordCreationService.LogInfo[] categories;

public String debugLevel;

private String[] categories_type_info = new String[]{'categories','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'0','-1','false'};

private String[] debugLevel_type_info = new String[]{'debugLevel','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'categories','debugLevel'};

    }

publicclass CallOptions_element {

public String client;

private String[] client_type_info = new String[]{'client','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'client'};

    }

publicclass location {

public Double latitude;

public Double longitude;

private String[] latitude_type_info = new String[]{'latitude','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] longitude_type_info = new String[]{'longitude','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'latitude','longitude'};

    }

publicclass address {

public String city;

public String country;

public String countryCode;

public String postalCode;

public String state;

public String stateCode;

public String street;

private String[] city_type_info = new String[]{'city','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] country_type_info = new String[]{'country','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] countryCode_type_info = new String[]{'countryCode','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] postalCode_type_info = new String[]{'postalCode','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] state_type_info = new String[]{'state','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] stateCode_type_info = new String[]{'stateCode','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] street_type_info = new String[]{'street','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'city','country','countryCode','postalCode','state','stateCode','street'};

    }

publicclass createRecordResponse_element {

public String result;

private String[] result_type_info = new String[]{'result','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','true'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'result'};

    }

publicclass createRecord_element {

public String jsonString;

private String[] jsonString_type_info = new String[]{'jsonString','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','true'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'jsonString'};

    }

publicclass SessionHeader_element {

public String sessionId;

private String[] sessionId_type_info = new String[]{'sessionId','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'sessionId'};

    }

publicclass DebuggingInfo_element {

public String debugLog;

private String[] debugLog_type_info = new String[]{'debugLog','http://soap.sforce.com/schemas/class/RecordCreationservicecls',null,'1','1','false'};

private String[] apex_schema_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls','true','false'};

private String[] field_order_type_info = new String[]{'debugLog'};

    }

publicclass RecordCreationservicecls {

public String endpoint_x = 'https://ap2.salesforce.com/services/Soap/class/RecordCreationservicecls';

public Map<String,String> inputHttpHeaders_x;

public Map<String,String> outputHttpHeaders_x;

public String clientCertName_x;

public String clientCert_x;

public String clientCertPasswd_x;

public Integer timeout_x;

public GeneratedRecordCreationService.AllowFieldTruncationHeader_element AllowFieldTruncationHeader;

public GeneratedRecordCreationService.CallOptions_element CallOptions;

public GeneratedRecordCreationService.SessionHeader_element SessionHeader;

public GeneratedRecordCreationService.DebuggingInfo_element DebuggingInfo;

public GeneratedRecordCreationService.DebuggingHeader_element DebuggingHeader;

private String AllowFieldTruncationHeader_hns = 'AllowFieldTruncationHeader=http://soap.sforce.com/schemas/class/RecordCreationservicecls';

private String CallOptions_hns = 'CallOptions=http://soap.sforce.com/schemas/class/RecordCreationservicecls';

private String SessionHeader_hns = 'SessionHeader=http://soap.sforce.com/schemas/class/RecordCreationservicecls';

private String DebuggingInfo_hns = 'DebuggingInfo=http://soap.sforce.com/schemas/class/RecordCreationservicecls';

private String DebuggingHeader_hns = 'DebuggingHeader=http://soap.sforce.com/schemas/class/RecordCreationservicecls';

private String[] ns_map_type_info = new String[]{'http://soap.sforce.com/schemas/class/RecordCreationservicecls', 'GeneratedRecordCreationService'};

public String createRecord(String jsonString) {

            GeneratedRecordCreationService.createRecord_element request_x = new GeneratedRecordCreationService.createRecord_element();

            request_x.jsonString = jsonString;

            GeneratedRecordCreationService.createRecordResponse_element response_x;

            Map<String, GeneratedRecordCreationService.createRecordResponse_element> response_map_x = new Map<String, GeneratedRecordCreationService.createRecordResponse_element>();

            response_map_x.put('response_x', response_x);

            WebServiceCallout.invoke(

this,

              request_x,

              response_map_x,

new String[]{endpoint_x,

'',

'http://soap.sforce.com/schemas/class/RecordCreationservicecls',

'createRecord',

'http://soap.sforce.com/schemas/class/RecordCreationservicecls',

'createRecordResponse',

'GeneratedRecordCreationService.createRecordResponse_element'}

            );

            response_x = response_map_x.get('response_x');

return response_x.result;

        }

    }

}

Create Service Mockup:

Sample Mockup class:

Create Mockupclass:

------------------------

global class YourWebServiceMockImpl implements WebServiceMock {

   global void doInvoke(

           Object stub,

           Object request,

           Map<String, Object> response,

           String endpoint,

           String soapAction,

           String requestName,

           String responseNS,

           String responseName,

           String responseType) {

        // Create response element from the autogenerated class.

        // Populate response element.

        // Add response element to the response parameter, as follows:

        response.put('response_x', responseElement);

   }

}

Original Mockup class:

globalclass GeneratedRecordCreationServiceMockupcls implements WebServiceMock {

       globalvoid doInvoke(

           Object stub,

           Object request,

           Map<String, Object> response,

           String endpoint,

           String soapAction,

           String requestName,

           String responseNS,

           String responseName,

           String responseType) {

// Create response element from the autogenerated class.

        GeneratedRecordCreationService.createRecordResponse_element responseElement = new GeneratedRecordCreationService.createRecordResponse_element();

//Here createRecordResponse_element is an inner class in generated service class for preparing response

// Populate response element.

        responseElement.result = 'Welcome to Salesfoce';//here we have to set the value for the property result

// Add response element to the response parameter, as follows:

        response.put('response_x', responseElement);

   }

      

}

Test class:

@isTest

privateclass TestGeneratedRecordCreationService {

statictestMethodvoid myUnitTest() {

// TO DO: implement unit test

 Test.setMock(WebServiceMock.class, new GeneratedRecordCreationServiceMockupcls());

        GeneratedRecordCreationService.RecordCreationservicecls recordCreationObj = new  GeneratedRecordCreationService.RecordCreationservicecls();

       recordCreationObj.createRecord('Give input');

      //This method “createRecord” contains the webservice callout.

    }

}

So by using mockup class we can do test code coverage for the method which includes web service callout .

References:

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_callouts_wsdl2apex_testing.htm