Sales force - Test Apex Class List - unit-testing

Question

I made an Apex Class in the Sandbox to call a List.
Now I need to implement it in the production. To do so, I need to implement a Test with at least 75% Success.
The Apex Class produces a List of “dfind_Research_Projekt__c” from which “dfind_Potenzieller_Kandidat__c “ is the actual record, I use this list to make an iteration and show all the “dfind_Research_Projekt__c” on the page from “dfind_Potenzieller_Kandidat__c “.
This is my Apex Class:
public with sharing class dfind_Pot_Job_Application_List {
#AuraEnabled
//Get Pot Job Application List
public static List<dfind_Research_Projekt__c> getJobApp(Id recordId) {
List<dfind_Research_Projekt__c> JobAppList = [Select Id, Name, dfind_Potenzieller_Kandidat__c, dfind_Job__c,
LastModifiedById, dfind_Bewerbungsdatum__c, dfind_Job_Name__c,
OwnerId
from dfind_Research_Projekt__c
where dfind_Potenzieller_Kandidat__c = :recordId
ORDER BY dfind_Bewerbungsdatum__c DESC NULLS LAST];
return JobAppList;
}
//Get User
#AuraEnabled
public static user fetchUser(){
User u = [select id,Name from User where id =: userInfo.getUserId()];
return u;
}
}
This is my test:
#isTest
public class TESTdfind_pot_job_app {
static testMethod void myUnitTest() {
//Create Data for Customer Objet
cxsrec__Potential_candidate__c objKandi = new cxsrec__Potential_candidate__c();
objKandi.Name = 'Test Kandidat';
insert objKandi;
//Create List
List<dfind_Research_Projekt__c> listOfPotApp = new List<dfind_Research_Projekt__c>{
new dfind_Research_Projekt__c(Name='Test Appplication'
, dfind_Job__c='a0w0X000008KKB5QAO'
, dfind_Potenzieller_Kandidat__c = objKandi.Id
, dfind_Bewerbungsdatum__c = Datetime.now()
, OwnerId= '0050X000007vz5MQAQ'),
new dfind_Research_Projekt__c(Name='Test Appplication 1'
, dfind_Job__c='a0w1x0000013aSRAAY'
, dfind_Potenzieller_Kandidat__c = objKandi.Id
, dfind_Bewerbungsdatum__c = Datetime.now()
, OwnerId= '0050X000007vz5MQAQ'),
new dfind_Research_Projekt__c(Name='Test Appplication 2'
, dfind_Job__c='a0w1x000000JJSBAA4'
, dfind_Potenzieller_Kandidat__c = objKandi.Id
, dfind_Bewerbungsdatum__c = Datetime.now()
, OwnerId= '0050X000007vz5MQAQ')
};
insert(listOfPotApp);
Test.startTest();
// Starts the scope of test
// Now check if it is giving desired results using system.assert
// Statement.New invoice should be created
List<dfind_Research_Projekt__c> JobAppList = new List<dfind_Research_Projekt__c>(listOfPotApp);
Test.stopTest(); // Ends the scope of test
for(Integer i=0;i<JobAppList.Size();i++) {
system.assertEquals(JobAppList[i].dfind_Potenzieller_Kandidat__c,objKandi.Id);
System.debug(i + 'Kandidat: ' + JobAppList[i].dfind_Potenzieller_Kandidat__c + ';');
System.debug(i + ': ' + objKandi.Id + ';');
}
system.assertEquals(1,1);
}
}

Answer 1

The hard-coded Ids in your unit test won't work. Your unit tests executes in an isolated data context and must generate all of its own test data.
As written, this test doesn't really do anything. It does not invoke the code you intend to test, as it must to evaluate its behavior and obtain code coverage. You'd need to call fetchUser() and getJobApp() at some point and write assertions about their return values. The assertions that are currently present are all tautological; they're guaranteed to pass and provide no information.
See How do I write an Apex unit test? on Salesforce Stack Exchange for introductory resources.