Unable To Launch Chrome Browser Because Driver Is Null - selenium

Question

I am executing my code using shell scripting file and as per requirement if i will not pass parameter then my code will execute on my local machine and if i will pass parameter with shell scripting then code should be execute on browser stack. If i am executing with parameter then my code is working fine . But if i am not passing parameter in shell scripting then unable to launch chrome browser because in If condition driver is null. This is my base class
When i am executing shell script without parameter then my execution is going in If condition but unable to launch chrome browser because driver variable is not initialized in if condition . if i am printing driver value then it is showing null.
package com.epath.smoketest.tests;
/**
* Class: Base
* Author: D Albanese
* Creation Date: 4/5/2017
*/
import org.junit.Rule;
import org.junit.rules.ExternalResource;
import org.openqa.selenium.WebDriver;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.net.URL;
import java.util.Properties;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.remote.LocalFileDetector;
import org.openqa.selenium.remote.RemoteWebDriver;
public class Base {
//-Browser capability passed by CLI argument.
private static String sBrowser;
//-Browser version passed by CLI argument.
private static String sBversion;
//-OS capability passed by CLI argument.
private static String sOsName;
//-OS version capability passed by CLI argument.
private static String sOsVersion;
//-Passing input folder name by CLI argument.
public String sFolderName = "resources";
public static String getExecutionPath;
public static String getResourcePath;
public static WebDriver driver;
public Base(String sBrowser, String sBversion, String sOsName, String sOsVersion,String sFolderName) {
this.sBrowser = sBrowser;
this.sBversion = sBversion;
this.sOsName = sOsName;
this.sOsVersion = sOsVersion;
if(null != sFolderName && ! sFolderName.trim().equals("")) {
this.sFolderName = sFolderName;
}
}
//-Utilizing ExternalResource rule to preserve functionality of #Before and #After annotations in tests
//-ExternalResource rule has before and after methods that execute prior to methods annotated with #Before and #After
#Rule
public ExternalResource resource = new ExternalResource() {
#Override
protected void before() throws Throwable {
//-Use this for local testing
DesiredCapabilities caps = new DesiredCapabilities();
caps.setCapability("browser", sBrowser);
caps.setCapability("browser_version", sBversion);
caps.setCapability("os", sOsName);
caps.setCapability("os_version", sOsVersion);
caps.setCapability("folder_name", sFolderName);
caps.setCapability("browserstack.local", "true");
if(sBrowser.length() == 0 && sBversion.length() == 0 && sOsName.length() == 0 && sOsVersion.length() == 0)
{
System.out.println("Inside If Condition ");
//-Load the properties
Properties prop = new Properties();
InputStream input = null;
input = new FileInputStream(System.getProperty("user.home") +
"/epath/services/tests/resources/AutomationData.properties");
prop.load(input);
// getResourcePath=prop.getProperty("resources_path");
getExecutionPath = prop.getProperty("local_resources_path");
System.out.println("Print Execution Path :- " +getExecutionPath);
System.out.println("Print Driver Path :- " + driver);
System.setProperty("webdriver.chrome", "\\\\192.168.10.21\\volume1\\ngage_dev\\engineering\\ngage\testing\\automated\\chromedriver_win32\\chromedriver.exe");
driver = new ChromeDriver();
} else {
//-Load the properties
System.out.println("Inside else Condtions ");
Properties prop = new Properties();
InputStream input = null;
input = new FileInputStream(System.getProperty("user.home") +
"/epath/services/tests/resources/AutomationData.properties");
prop.load(input);
getResourcePath=prop.getProperty("resources_path");
getExecutionPath = prop.getProperty("resources_path")+sFolderName;
//-Get USERNAME and AUTOMATE_KEY of browser stack
String browserStackUsername = prop.getProperty("browser_stack_username");
String browserStackAutomateKey = prop.getProperty("browser_stack_automate_key");
String URL = "https://" + browserStackUsername + ":" +
browserStackAutomateKey + "#hub-cloud.browserstack.com/wd/hub";
driver = new RemoteWebDriver(new URL(URL), caps);
//-Load the URL to be tested
driver.get(prop.getProperty("test_url"));
//-For local file uploads
((RemoteWebDriver) driver).setFileDetector(new LocalFileDetector());
}
}
#Override
protected void after() {
driver.quit();
}
};
public String getAutomationInputDataPath() {
return this.getExecutionPath;
}
public static String getResourcePathFromPropertiesfile() {
return getResourcePath;
}
}
And this is my test case class where i am calling base class(above class)
public class AddRegisterLAs extends Base {
private Login login;
private Navigation go;
private LearningActivityAdd addLa;
private ImageAdd addImage;
private DocumentAdd addDocument;
private VideoAdd addVideo;
private AudioAdd addAudio;
private LinkAdd addLink;
private CustomAdd addCustom;
private AiccAdd addAicc;
private ScormAdd addScorm;
private RegistrationCreate createRegistration;
private Utils utils;
private GetVersion getVersion;
public AddRegisterLAs() {
super(System.getProperty("browser"),System.getProperty("browser_version"),System.getProperty("os"),System.getProperty("ov"),System.getProperty("folderName"));
}
#Before
public void setUp() {
login = new Login(driver);
go = new Navigation(driver);
addLa = new LearningActivityAdd(driver);
addImage = new ImageAdd(driver);
addDocument = new DocumentAdd(driver);
addVideo = new VideoAdd(driver);
addAudio = new AudioAdd(driver);
addLink = new LinkAdd(driver);
addCustom = new CustomAdd(driver);
addAicc = new AiccAdd(driver);
addScorm = new ScormAdd(driver);
utils = new Utils();
getVersion = new GetVersion(driver);
createRegistration = new RegistrationCreate(driver);
}
#Test
public void Shallow() throws Exception {
//utils.logAndPrint("AddRegisterLAs");
int maxLAs = 1000;
int maxRegs = 1000;
//-Print to screen to create log. Log can be copied and pasted to Word document or elsewhere as needed.
System.out.println("\n" + "---------------------------------------------------------------------------------"+ "\r\n");
System.out.println("---------------------------------------------------------------------------------"+ "\r\n");
System.out.println("Adding and Registering Learning Activities Automation"+ "\r\n");
System.out.println("---------------------------------------------------------------------------------"+ "\r\n");
System.out.println("---------------------------------------------------------------------------------"+ "\r\n");
//-Load the properties
System.out.println("\n" + "---------------------------------------------------------------------------------"+ "\r\n");
System.out.println("Read in PROPERTIES file"+ "\r\n");
System.out.println("---------------------------------------------------------------------------------"+ "\r\n");
Properties prop = new Properties();
InputStream input = null;

Answer 1

At first kindly check that you have access to that driver path which you mentioned inside if.