When I run tests without using headless chrome, the tests take on average 40-50 seconds. When I run the tests using headless chrome it takes a lot longer (190 seconds on average). I'm using chromedrivermanager which runs on 87.0.4280.20.
The browser class without using headless:
private String baseUrl = ConfigHandler.getPropertyValue("url");
private WebDriver driver;
public Browser() {
WebDriverManager.chromedriver().setup();
Map<String, Object> prefs = new HashMap<>();
ChromeOptions chromeOptions = new ChromeOptions();
String FilesPath = System.getProperty("user.dir") + File.separator + SeleniumUtilities.getDownloadsPath();
prefs.put("download.default_directory", FilesPath);
chromeOptions.setExperimentalOption("prefs", prefs);
this.driver = new ChromeDriver(chromeOptions);
this.driver.manage().window().maximize();
}
Browser class using headless chrome:
private String baseUrl = ConfigHandler.getPropertyValue("url");
private WebDriver driver;
public Browser() {
WebDriverManager.chromedriver().setup();
Map<String, Object> prefs = new HashMap<>();
ChromeOptions chromeOptions = new ChromeOptions();
System.out.println("working on server");
chromeOptions.addArguments("--window-size=1400,900");
chromeOptions.addArguments("--headless");
chromeOptions.addArguments("--no-proxy-server");
chromeOptions.addArguments("--proxy-server='direct://'");
chromeOptions.addArguments("--proxy-bypass-list=*");
String FilesPath = System.getProperty("user.dir") + File.separator + SeleniumUtilities.getDownloadsPath();
prefs.put("download.default_directory", FilesPath);
chromeOptions.setExperimentalOption("prefs", prefs);
this.driver = new ChromeDriver(chromeOptions);
}
Any Ideas?
EDIT:
I noticed in headless chrome the cpu get really high, unlike without using headless. Why the cpu so high when running in headless?
Related
I am using the following for setting up downloads directory.
chromeOptions = Options()
prefs = {"download.default_directory" : "F:/downloadedfiles"}
chromeOptions.add_experimental_option("prefs", prefs)
#chromeOptions.add_argument("download.default_directory=F:/downloadedfiles")
driver = webdriver.Chrome(executable_path=r"servers\chromedriver.exe", options=chromeOptions)
But when I run the program, it is still downloading in "C:\Downloads" directory.
Try This:
ChromeOptions chromeOptions = new ChromeOptions();
Map<String, Object> prefs = new HashMap<String, Object>();
prefs.put("download.default_directory", "F:/downloadedfiles");
(OR)
ChromeOptions chromeOptions = webdriver.ChromeOptions()
prefs = {"download.default_directory" : "F:/downloadedfiles"}
Set Chrome Options and Driver
chromeOptions.setExperimentalOption("prefs", prefs);
chromedriver = "path/to/chromedriver.exe"
driver = webdriver.Chrome(executable_path=chromedriver, options=chromeOptions)
Reference : https://sites.google.com/a/chromium.org/chromedriver/capabilities
I have a website to test with selenium and ChromeDriver (on windows), where I like to test the functionality to export data and import it again.
The export creates a xml file that is downloaded on ones computer. When running this with webdriver, Chrome asks me whether to keep the file or discard it, as it might be a potential threat.
How can I switch off this behavior inside my test ? Is there a chrome setting I can use, so that a file is no matter what downloaded ?
Thanks
Try this. Executed on windows
(How to control the download of files with Selenium Python bindings in Chrome)
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
options = Options()
options.add_experimental_option("prefs", {
"download.default_directory": r"C:\Users\xxx\downloads\Test",
"download.prompt_for_download": False,
"download.directory_upgrade": True,
"safebrowsing.enabled": True
})
The below Program will help you to download the files in Chrome with
Desired-Capabilities. It is a rich class having lot of utilities, you can go through it in your free time.
public class DownloadChromeFile {
public static void main(String[] args) {
System.setProperty("webdriver.chrome.driver","./chromedriver.exe");
String downloadFilepath = "c:\\download";
HashMap<String, Object> chromePrefs = new HashMap<String, Object>();
chromePrefs.put("profile.default_content_settings.popups", 0);
chromePrefs.put("download.default_directory", downloadFilepath);
ChromeOptions options = new ChromeOptions();
HashMap<String, Object> chromeOptionsMap = new HashMap<String, Object>();
options.setExperimentalOption("prefs", chromePrefs);
options.addArguments("--test-type");
options.addArguments("--disable-extensions"); //to disable browser extension popup
DesiredCapabilities cap = DesiredCapabilities.chrome();
cap.setCapability(ChromeOptions.CAPABILITY, chromeOptionsMap);
cap.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true); // Bydefault it will accepts all popups.
cap.setCapability(ChromeOptions.CAPABILITY, options);
driver = new ChromeDriver(cap);
driver.get("Your Application Url");
driver.findElement(By.xpath("Export Button xpath")).click();
}
}
How do I set the mobile emulation for Nexus 5 view in Serenity managed chrome driver?
I tried going through this link:
https://johnfergusonsmart.com/configuring-chromedriver-easily-with-serenity-bdd/
Which explain setting preferences for chrome.
Chrome preferences
You can also provide more advanced options using the setExperimentalOption() method:
Map<String, Object> chromePrefs = new HashMap<String, Object>();
chromePrefs.put("download.default_directory", downLoadDirectory);
chromePrefs.put("profile.default_content_settings.popups", 0);
chromePrefs.put("pdfjs.disabled", true);
ChromeOptions options = new ChromeOptions();
options.setExperimentalOption("prefs", chromePrefs);
In Serenity, you would pass these using properties prefixed with the chrome_preferences prefix, e.g.
chrome_preferences.download.default_directory = /my/download/directory
chrome_preferences.profile_default_content_settings.popups = 0
chrome_preferences.pdfjs.disabled=true
From this, I tried setting the mobileEmulation as
chrome.capabilities.mobile_emulation.device_name= Google Nexus 5
chrome.options.mobileEmulation.deviceName= Google Nexus 5
and a few other logical variants, but none of them succeeded.
The best way I found to help me in this issue it to create a custom WebDriver.
I had to create a class which extends DriverSource. And then link it to the Serenity Properties file. This will give me the driver I need.
http://www.thucydides.info/docs/serenity/#_custom_webdriver_implementations
You can add your own custom WebDriver provider by implementing the
DriverSource interface. First, you need to set up the following system
properties (e.g. in your serenity.properties file):
webdriver.driver = provided
webdriver.provided.type = mydriver
webdriver.provided.mydriver = com.acme.MyPhantomJSDriver
thucydides.driver.capabilities = mydriver
Your custom driver must implement the DriverSource interface, as shown
here:
public class MyPhantomJSDriver implements DriverSource {
#Override
public WebDriver newDriver() {
try {
DesiredCapabilities capabilities = DesiredCapabilities.phantomjs();
// Add
return new PhantomJSDriver(ResolvingPhantomJSDriverService.createDefaultService(),
capabilities);
}
catch (IOException e) {
throw new Error(e);
}
}
#Override
public boolean takesScreenshots() {
return true;
}
}
This driver will now take screenshots normally.
Is it possible to export HAR using chromedriver similar to what I can do with netexpert+firebug with Firefox?
Yes, using BrowsermobProxy you can generate HAR file using chromedriver.
Here is a script in python to programatically generate HAR file using Selenium, BrowserMob Proxy and chromedriver. Python Packages for selenium and browsermob-proxy are needed to run this script.
from browsermobproxy import Server
from selenium import webdriver
import os
import json
import urlparse
server = Server("path/to/browsermob-proxy")
server.start()
proxy = server.create_proxy()
chromedriver = "path/to/chromedriver"
os.environ["webdriver.chrome.driver"] = chromedriver
url = urlparse.urlparse (proxy.proxy).path
chrome_options = webdriver.ChromeOptions()
chrome_options.add_argument("--proxy-server={0}".format(url))
driver = webdriver.Chrome(chromedriver,chrome_options =chrome_options)
proxy.new_har("http://stackoverflow.com", options={'captureHeaders': True})
driver.get("http://stackoverflow.com")
result = json.dumps(proxy.har, ensure_ascii=False)
print result
proxy.stop()
driver.quit()
You can enable performance log via chromedriver and analyze the network traffic to build HAR on your own.
Please checkout the code at
https://gist.github.com/Ankit3794/01b63199bd7ed4f2539a088463e54615#gistcomment-3126071
Steps:
Initiate ChromeDriver instance with enabling Logging Preference
DesiredCapabilities capabilities = DesiredCapabilities.chrome();
ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.addArguments("ignore-certificate-errors");
chromeOptions.addArguments("disable-infobars");
chromeOptions.addArguments("start-maximized");
// More Performance Traces like devtools.timeline, enableNetwork and enablePage
Map<String, Object> perfLogPrefs = new HashMap<>();
perfLogPrefs.put("traceCategories", "browser,devtools.timeline,devtools");
perfLogPrefs.put("enableNetwork", true);
perfLogPrefs.put("enablePage", true);
chromeOptions.setExperimentalOption("perfLoggingPrefs", perfLogPrefs);
// For Enabling performance Logs for WebPageTest
LoggingPreferences logPrefs = new LoggingPreferences();
logPrefs.enable(LogType.PERFORMANCE, Level.ALL);
capabilities.setCapability("goog:loggingPrefs", logPrefs);
capabilities.merge(chromeOptions);
Get "message" JSONObject from Performance Logs
private static JSONArray getPerfEntryLogs(WebDriver driver) {
LogEntries logEntries = driver.manage().logs().get(LogType.PERFORMANCE);
JSONArray perfJsonArray = new JSONArray();
logEntries.forEach(entry -> {
JSONObject messageJSON = new JSONObject(entry.getMessage()).getJSONObject("message");
perfJsonArray.put(messageJSON);
});
return perfJsonArray;
}
Get HAR by passing PerfLogs
public static void getHAR(WebDriver driver, String fileName) throws IOException {
String destinationFile = "/HARs/" + fileName + ".har";
((JavascriptExecutor) driver).executeScript(
"!function(e,o){e.src=\"https://cdn.jsdelivr.net/gh/Ankit3794/chrome_har_js#master/chromePerfLogsHAR.js\",e.onload=function(){jQuery.noConflict(),console.log(\"jQuery injected\")},document.head.appendChild(e)}(document.createElement(\"script\"));");
File file = new File(destinationFile);
file.getParentFile().mkdirs();
FileWriter harFile = new FileWriter(file);
harFile.write((String) ((JavascriptExecutor) driver).executeScript(
"return module.getHarFromMessages(arguments[0])", getPerfEntryLogs(driver).toString()));
harFile.close();
}
How we can handle SSL certificate errors for chrome and internet explorer with selenium web driver. When I am working with Firefox it is working fine. Could you please provide me the solution to handle SSL certificate error. Below is the code i tried.
// For Chrome
#Test
public void CRconfiguration() throws Exception {
DesiredCapabilities capabilities = new DesiredCapabilities();
capabilities.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);
System.setProperty("webdriver.chrome.driver", "D:\\Softwares\\Selenium softwares\\drivers\\chromedriver.exe");
_driver = new ChromeDriver(capabilities);
System.setProperty("webdriver.chrome.driver",
"D:/Softwares/Selenium softwares/drivers/chromedriver.exe");
//_driver.manage().timeouts().implicitlyWait(100, TimeUnit.SECONDS);
login();
_driver.close();
}
//For Internet Explorer
#Test
public void IEconfiguration() throws Exception {
System.setProperty("webdriver.ie.driver",
"D:/Softwares/Selenium softwares/drivers/IEDriverServer.exe");
DesiredCapabilities capabilities = DesiredCapabilities.internetExplorer();
capabilities.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS, true);
capabilities.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);
capabilities.setJavascriptEnabled(true);
//capabilities.setCapability("chrome.switches", Arrays.asList("--ignore-certificate-errors"));
_driver = new InternetExplorerDriver(capabilities);
_driver.manage().timeouts().implicitlyWait(100, TimeUnit.SECONDS);
login();
_driver.close();
}
For Chrome
System.setProperty("webdriver.chrome.driver","D:\\Selenium\\chromedriver.exe");
WebDriver driver1 = new ChromeDriver();
driver1.get("https://www.flipkart.com/co");
driver1.navigate().to("javascript:document.getElementById('overridelink').click()");
For IE:
System.setProperty("webdriver.ie.driver", "D:\\Selenium\\IEDriverServer.exe");
WebDriver driver2 = new InternetExplorerDriver();
driver2.get("https://www.flipkart.com");
driver2.navigate().to("javascript:document.getElementById('overridelink').click()");
WebDriver driver = new 'your Driver'();
driver.get("your app URL");
driver.navigate().to("javascript:document.getElementById('overridelink').click()");