Webdriver change the zoom level of browser using a javascript.

Code-

package com.webdriver.blogs;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
public class ZoomLevelChangeWebdriver {
WebDriver driver;
String zoomLevelIncrease="150%";
String zoomLevelReduced="75%";
@BeforeClass()
public void setUp() throws IOException {
System.setProperty("webdriver.chrome.driver", System.getProperty("user.dir") + "\\Jar_files\\chromedriver.exe");
ChromeOptions options = new ChromeOptions();
// To start Chrome in Maximized browser window
options.addArguments("start-maximized");
// To remove Chrome is being controlled by automated test software
options.addArguments("disable-infobars");
driver = new ChromeDriver(options);
driver.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS);
driver.manage().window().maximize();
}
@Test(priority = 1)
public void navigateToWebSite() {
// Navigate to the URL
driver.get("https://www.google.com/");
}
@Test(priority = 2,enabled=true )
public void zoomInZoomOut() throws InterruptedException{
JavascriptExecutor js = (JavascriptExecutor) driver;
js.executeScript("document.body.style.zoom='" + zoomLevelIncrease +"'");
System.out.println("Zoom level is set to "+zoomLevelIncrease);
Thread.sleep(5000);
js.executeScript("document.body.style.zoom='" + zoomLevelReduced +"'");
System.out.println("Zoom level is set to "+zoomLevelReduced);
Thread.sleep(5000);
}
@AfterClass()
public void shutDown() {
driver.close();
driver.quit();
try {
Runtime.getRuntime().exec("taskkill /F /IM chromedriver.exe");
} catch (IOException e1) {
e1.printStackTrace();
}
System.out.println("***************End of testing shutdown happen**************************");
}
}