Why Selenium WebDriver is an Interface?

WEBDRIVER INTERFACE

KEYWORDS / QUESTIONS
`Interface WebDriver` `ChromeDriver` `ChromeDriverService`
`System.setPropert(key, value)`
`chromedriver` `geckodriver` `msedgedriver` `phantomjs`
`WebDriver driver;` `driver = new ChromeDriver();` `driver = new FirefoxDriver();`

NOTES

All browser specific classes (ChromeDriver, FirefoxDriver etc) implemented a common interface called WebDriver interface. info

WebDriver interface contains commonly used methods for browser automation.

Ex:

WebDriver Methods

Return Type	Methods
void	close()
WebElement	findElement(By by)
java.util.List	findElements(By by)
void	get(java.lang.String url)
java.lang.String	getTitle()
tbd	tbd

We can create different browser object using same object type WebDriver.

Ex:

WebDriver driver;

driver = new ChromeDriver();

driver = new FirefoxDriver();

package io.webdriver.chrome;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeDriverService;
import org.openqa.selenium.edge.EdgeDriver;
import org.openqa.selenium.edge.EdgeDriverService;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.GeckoDriverService;
import org.openqa.selenium.phantomjs.PhantomJSDriver;
import org.openqa.selenium.phantomjs.PhantomJSDriverService;

import java.io.File;

public class WebDriverInterface {
    public static void main(String[] args) {
        WebDriver driver;

        System.setProperty(ChromeDriverService.CHROME_DRIVER_EXE_PROPERTY, getDriver("chromedriver").getAbsolutePath());
        System.setProperty(GeckoDriverService.GECKO_DRIVER_EXE_PROPERTY, getDriver("geckodriver").getAbsolutePath());
        System.setProperty(EdgeDriverService.EDGE_DRIVER_EXE_PROPERTY, getDriver("msedgedriver").getAbsolutePath());
        System.setProperty(PhantomJSDriverService.PHANTOMJS_EXECUTABLE_PATH_PROPERTY, getDriver("phantomjs").getAbsolutePath());


        driver = new ChromeDriver();
        System.out.println(driver.toString());
        driver.quit();

        driver = new FirefoxDriver();
        System.out.println(driver.toString());
        driver.quit();

        driver = new EdgeDriver();
        System.out.println(driver.toString());
        driver.quit();

        driver = new PhantomJSDriver();
        System.out.println(driver.toString());
        driver.quit();
    }

    /**
     * Based on the OS, we get browser driver location.
     *
     * @param driverName a string. ex: "chromedriver"
     * @return the relative (partial) path of the driver. ex: driver/chromedriver
     */
    private static File getDriver(String driverName) {
        if (System.getProperty("os.name").contains("Mac OS X")) {
            return new File(new File("driver"), driverName);
        } else {
            return new File(new File("driver"), driverName + ".exe");
        }
    }

}

ChromeDriver: chrome on WINDOWS (24a35fb050dc5e8d46ba8c0eede0eb1f)
FirefoxDriver: firefox on WINDOWS (413c13b1-7984-41e4-a7cc-a31b85438e71)
EdgeDriver: msedge on WINDOWS (83af823aa10d801182ad9726e3ed911b)
PhantomJSDriver: phantomjs on XP (01d457b0-7114-11eb-a16e-d3a30713c1eb)

SUMMARY
WebDriver is an Interface.
ChromeDriver, FirefoxDriver etc classes implemented WebDriver interface.
WebDriver has common methods for all browsers. Ex: get(), getTitle(), findElement() etc

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Why Selenium WebDriver is an Interface?

Jagadeesh

WEBDRIVER INTERFACE

NOTES

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