Test Class Issue - My REST Method Isn't Getting Run

Question

In my visualforce page I have a search field (inputText) with an id of 'query'. Query is passed into my controller and the runSearch() method starts a process which initiates a web service call. In my test class I am trying to initiate the API call by passing in a search value.

Extension

public with sharing class ClinicalStudySetupExtension {

private String studyJson;
private String result;
private String protocolNumber;
public String query {get; set;}
public Boolean searched {get; set;}
public Clinical_Study__c cStudy {get; set;}
private ApexPages.StandardController std {get; set;}

//controller
public ClinicalStudySetupExtension(ApexPages.StandardController std) {

    this.std = std;
    this.studyJson = callRestEndPoint();

    query = '';
    searched=false;
    String queryStr=ApexPages.currentPage().getParameters().get('query');
    if (queryStr!=null)
    {
        protocolNumber=queryStr;
        runSearch();
    }
}

public pageReference runSearch() {//runSearch takes the input 'query' and passes it to the REST api call

    searched=true;
    String searchStr = ''+query+'';
    system.debug('Study name: ' + query);
    protocolNumber = searchStr.deleteWhitespace();

    this.studyJson = callRestEndPoint();

    return null;
  }

private string callRestEndPoint() {//the rest api call generates a json string and passes it to the json parser      
    Http h = new Http();
    HttpRequest req = new HttpRequest();
    HttpResponse res = new HttpResponse();

    String username = 'ex';
    String password = 'ex';

    Blob headerValue = Blob.valueOf(username + ':' + password);
    String authorizationHeader = 'Basic ' + EncodingUtil.base64Encode(headerValue);
    req.setClientCertificateName('CN');
    req.setHeader('Authorization', authorizationHeader);
    req.setHeader('Api-Key', '777..');
    req.setTimeout(120000);

    req.setMethod('GET');
    req.setEndpoint('https://example.com/study/'+protocolNumber);      

    String result = '';
    try{
        res = h.send(req);
        result = res.getBody();
        }
    catch(System.CalloutException e){
        result = res.toString();
        }

    return result;     
}

List<StudyWrapper> Study = new List<StudyWrapper>();

public List<StudyWrapper> getStudy(){//the json parser parses the json string and puts it in a list, study
    JSONParser parser = JSON.createParser(this.studyJson);
    while(parser.nextToken() != null){
            while(parser.nextToken()!= null){
                if(parser.getCurrentToken()==JSONToken.START_OBJECT){
                    StudyWrapper s = (StudyWrapper)parser.readValueAs(StudyWrapper.class);
                    Study.add(s);
                }
            }
        }
    return Study;
}

I'm trying to set up my test class, so far it looks like this:

Test class

static testMethod void testRunSearch(){

    //create a test user
    Profile p1 = [SELECT Id FROM Profile WHERE Name='System Administrator'];

    User u1 = new User(Alias = 'George', UserName='JFFGeo@testorg#.com', Email='[email protected]', LastName='George', ProfileId = p1.Id, EmailEncodingKey='UTF-8',  LanguageLocaleKey='en_US', LocaleSidKey='en_US', TimeZoneSidKey='America/Los_Angeles' );
    insert u1;

    //Arrange the components
    PageReference pageRef = Page.ClinicalStudySetup;

    Test.setCurrentPage(pageRef);

    ApexPages.StandardController sc = new ApexPages.StandardController(new Clinical_Study__c());
    ClinicalStudySetupExtension ext = new ClinicalStudySetupExtension(sc);

    pageRef.getParameters().put('query','GA00806'); 

    Test.startTest();

        System.runAs(u1){

            ext.runSearch();

        }

    Test.stopTest();

}

Unfortunately, the way that I'm defining query and executing runSearch() doesn't seem to be working in my test class. The method isn't even being hit when I run my test class. Can someone tell me, what am I doing wrong? Or what could be the cause of this?

Answer 1

In your test class you need to call put method, instead of get method

 ApexPages.currentPage().getParameters().put('query',yourString);

Is this what you are looking for? Documentation

Answer 2

You need to create your test data e.g.

Clinical_Study__c clinicalStudy = new Clinical_Study__c();
clinicalStudy.Name = 'GA00806'; 
insert clinicalStudy; 

PageReference pageRef = Page.ClinicalStudySetup;
pageRef.getParameters().put('query', 'GA00806'); 
Test.setCurrentPage(pageRef);

ClinicalStudySetupExtension cse = new ClinicalStudySetupExtension(new 

ApexPages.StandardController(ClinicalStudy));
//Act
cse.runSearch();

A good habit is to place all test method data creation into a separate test helper class - this way you just call the method whenever you need test data created, a simple example :

public class TestDataHelper() 
{
 public static List<Contact> createTestContacts(Int numRec) {
  List<Contact> conts = new List<Contact>(); 
  for(Integer i = 0; i < numRec; i++) {
  Contact testCont = new Contact(); 
  testCont.FirstName = 'fName' + i; 
  testCont.LastName = 'lName' + i; 
  conts.add(testCont); 
  }
  return conts; 
 }
}

Answer 3

It was really stupid of me, the reason the test wasn't running my REST method was because it was because the extension was an http callout. I was getting an error message "FATAL_ERROR|System.TypeException: Methods defined as TestMethod do not support Web service callouts, test skipped". My whole test wasn't running.

What ended up being the solution was this great post by Meta Daddy on doing http callout tests. After that, everything fell into place.