Field Set

Create field set :

Apex controller :

/**
 * Developer Name : Pratiksha Narvekar
 * Created Date : 31-10-2017
 **/

public class FieldsetAccount {

public String queryString{get;set;}

public list<Account> listAcc{get;set;}

public FieldsetAccount(){

queryString = 'Select ID';

for(Schema.FieldSetMember fsm : SObjectType.Account.FieldSets.FirstFieldsetAccount.getFields()){

queryString +=', '+fsm.getFieldPath();

} 

queryString +=' from Account Limit 4';

    listAcc = Database.query(queryString);

    System.debug('...listAcc...'+listAcc);

}

}

Visualforce page:

<!--
 * Developer Name : Pratiksha Narvekar
 * Created Date : 31-10-2017
 -->

<apex:page controller="FieldsetAccount" tabStyle="Account" sidebar="false"

ID="FieldSetAPID">

<apex:form ID="FieldSetAPFormID"> 

<apex:pageBlock ID="FieldSetAPBlockID">

<apex:pageBlockSection ID="FieldSetAPBlocksectionID" title="Account table" collapsible="true">

<apex:pageBlockTable value="{!listAcc}" var="listAccount">

<apex:repeat

value="{!$ObjectType.Account.fieldsets.FirstFieldsetAccount}"

var="varAcc">

<apex:column value="{!listAccount[varAcc]}">

</apex:column>

</apex:repeat>

</apex:pageBlockTable>

</apex:pageBlockSection>

<apex:pageBlockSection title="Account query is:" collapsible="true">

<apex:outputText value="{!queryString}"></apex:outputText>

</apex:pageBlockSection>

</apex:pageBlock>

</apex:form>

</apex:page>

Test class:


/**
 * Developer Name : Pratiksha Narvekar
 * Created Date : 31-10-2017
 **/
@isTest
private class FieldsetAccountTest {

    static testMethod void FieldsetAccountUnitTest() {
    test.StartTest();
        FieldsetAccount objFieldsetAccount = new FieldsetAccount();
        Account objAcc = new Account();
        //if u have required fields in account object then add those fields
        objAcc.Name='test pratiksha';
        insert objAcc;
     
        test.StopTest();
     
    }
}