Connection refused! Is selenium server started? - selenium

I am using Jenkins to run selenium nightwatch tests.
When I run the tests, I get the following error:
Connection refused! Is selenium server started?
I have the following configuration in my nightwatch.json file:
"selenium": {
"start_process": true,
"server_path": "lib/selenium-server-standalone-2.52.0.jar",
"log_path": "",
"host": "127.0.0.1",
"port": 4444,
"cli_args": {
"webdriver.chrome.driver": "lib/chromedriver",
"webdriver.ie.driver": "lib/IEDriverServer_x64_2.52.2.exe",
"trustAllSSLCertificates": true
}
I'm guessing Jenkins is trying to connect to a PORT but is unable to do so. Can someone please help?

Make sure the browserName is correct.
"desiredCapabilities": {
"browserName": "internet explorer",
"javascriptEnabled": true,
"acceptSslCerts": true
}
browserName: "internet explorer" and not "ie"
also your are missing the ".exe" in webdriver.chrome.driver

Related

How do you setup an HtmlUnit node with Selenium Grid?

I'm having trouble setting up an HtmlUnit node with Selenium Grid.
I'm launching my Hub with:
java -jar selenium-server-standalone.jar -role hub -port 4444
And HtmlUnitDriver nodes with:
java -jar selenium-server-standalone.jar -role node -browser browserName=htmlunit,maxInstances=5 -hub http://localhost:4444/grid/register -port 5564
My code to connect to the node, which is getting the exception, looks something like:
DesiredCapabilities cap = new DesiredCapabilities();
cap.setBrowserName("htmlunit");
cap.setJavascriptEnabled(false);
driver = new RemoteWebDriver(new URL("http://localhost:4444/wd/hub"), cap);
The exception I'm getting is:
Unable to create session from {
"desiredCapabilities": {
"browserName": "htmlunit",
"server:CONFIG_UUID": "93a0486d-c9f6-46da-8065-603ab07c0294",
"javascriptEnabled": false
},
"capabilities": {
"firstMatch": [
{
"browserName": "htmlunit",
"server:CONFIG_UUID": "93a0486d-c9f6-46da-8065-603ab07c0294"
}
]
}
}
To set up a Selenium Grid instance, I use the Selenium Foundation library. The "standalone" JAR brings in scads of transitive dependencies you don't need that end up creating conflicts. I created a sample project (local-grid-utility) that launches a Selenium 2 Grid that dispenses PhantomJS sessions, which could be easily altered to launch a Selenium 3 Grid dispensing HtmlUnit sessions.
The key to getting HtmlUnit sessions stood up in Grid is providing a complete class path that includes all of the dependencies. Here's what the library assembles for HtmlUnitDriver 2.40.0:
${JAVA_HOME}/jre/bin/java -cp ${M2_ROOT}/repository/org/seleniumhq/selenium/selenium-support/3.141.59/selenium-support-3.141.59.jar:${M2_ROOT}/repository/org/seleniumhq/selenium/htmlunit-driver/2.40.0/htmlunit-driver-2.40.0.jar:${M2_ROOT}/repository/org/apache/commons/commons-lang3/3.8.1/commons-lang3-3.8.1.jar:${M2_ROOT}/repository/xerces/xercesImpl/2.12.0/xercesImpl-2.12.0.jar:${M2_ROOT}/repository/org/seleniumhq/selenium/selenium-api/3.141.59/selenium-api-3.141.59.jar:${M2_ROOT}/repository/net/sourceforge/htmlunit/htmlunit-core-js/2.40.0/htmlunit-core-js-2.40.0.jar:${M2_ROOT}/repository/org/eclipse/jetty/websocket/websocket-api/9.4.28.v20200408/websocket-api-9.4.28.v20200408.jar:${M2_ROOT}/repository/xalan/xalan/2.7.2/xalan-2.7.2.jar:${M2_ROOT}/repository/org/eclipse/jetty/jetty-xml/9.4.28.v20200408/jetty-xml-9.4.28.v20200408.jar:${M2_ROOT}/repository/org/apache/httpcomponents/httpclient/4.5.12/httpclient-4.5.12.jar:${M2_ROOT}/repository/org/eclipse/jetty/jetty-http/9.4.28.v20200408/jetty-http-9.4.28.v20200408.jar:/Applications/Eclipse.app/Contents/Eclipse/plugins/com.beust.jcommander_1.72.0.jar:${M2_ROOT}/repository/org/apache/httpcomponents/httpcore/4.4.13/httpcore-4.4.13.jar:${M2_ROOT}/repository/xml-apis/xml-apis/1.4.01/xml-apis-1.4.01.jar:${M2_ROOT}/repository/commons-codec/commons-codec/1.11/commons-codec-1.11.jar:${M2_ROOT}/repository/net/sourceforge/htmlunit/neko-htmlunit/2.40.0/neko-htmlunit-2.40.0.jar:${M2_ROOT}/repository/com/squareup/okhttp3/okhttp/3.11.0/okhttp-3.11.0.jar:${M2_ROOT}/repository/commons-net/commons-net/3.6/commons-net-3.6.jar:${M2_ROOT}/repository/org/seleniumhq/selenium/selenium-server/3.141.59/selenium-server-3.141.59.jar:${M2_ROOT}/repository/xalan/serializer/2.7.2/serializer-2.7.2.jar:${M2_ROOT}/repository/org/eclipse/jetty/jetty-client/9.4.28.v20200408/jetty-client-9.4.28.v20200408.jar:${M2_ROOT}/repository/ch/qos/logback/logback-classic/1.2.3/logback-classic-1.2.3.jar:${M2_ROOT}/repository/org/apache/commons/commons-text/1.8/commons-text-1.8.jar:${M2_ROOT}/repository/org/eclipse/jetty/jetty-io/9.4.28.v20200408/jetty-io-9.4.28.v20200408.jar:${M2_ROOT}/repository/net/sourceforge/htmlunit/htmlunit-cssparser/1.5.0/htmlunit-cssparser-1.5.0.jar:${M2_ROOT}/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar:${M2_ROOT}/repository/org/apache/httpcomponents/httpmime/4.5.12/httpmime-4.5.12.jar:${M2_ROOT}/repository/org/seleniumhq/selenium/jetty-repacked/9.4.12.v20180830/jetty-repacked-9.4.12.v20180830.jar:${M2_ROOT}/repository/javax/servlet/javax.servlet-api/3.1.0/javax.servlet-api-3.1.0.jar:${M2_ROOT}/repository/org/eclipse/jetty/websocket/websocket-client/9.4.28.v20200408/websocket-client-9.4.28.v20200408.jar:${M2_ROOT}/repository/org/brotli/dec/0.1.2/dec-0.1.2.jar:${M2_ROOT}/repository/com/google/guava/guava/28.1-jre/guava-28.1-jre.jar:${M2_ROOT}/repository/com/squareup/okio/okio/1.14.0/okio-1.14.0.jar:${M2_ROOT}/repository/net/sourceforge/htmlunit/htmlunit/2.40.0/htmlunit-2.40.0.jar:${M2_ROOT}/repository/org/seleniumhq/selenium/selenium-remote-driver/3.141.59/selenium-remote-driver-3.141.59.jar:${M2_ROOT}/repository/commons-io/commons-io/2.6/commons-io-2.6.jar:${M2_ROOT}/repository/org/eclipse/jetty/jetty-util/9.4.28.v20200408/jetty-util-9.4.28.v20200408.jar:${M2_ROOT}/repository/org/eclipse/jetty/websocket/websocket-common/9.4.28.v20200408/websocket-common-9.4.28.v20200408.jar org.openqa.grid.selenium.GridLauncherV3 -role node -servlets org.openqa.grid.web.servlet.LifecycleServlet -host 192.168.1.6 -port 34464 -nodeConfig /Users/bb8d/github/Selenium-Foundation/target-s3/classes/nodeConfig-s3-9CF40153.json
You could create your own standalone package to bundle up the dependencies if that suits your fancy. The node server is provided by the GridLauncherV3 class. I also add the LifecycleServlet plugin to enable remote shutdown. The host specification corresponds to the local machine, and the port is auto-selected from whatever is currently available.
The JSON configuration file looks like this:
{
"capabilities": [
{
"browserName": "htmlunit",
"javascriptEnabled": true,
"maxInstances": 5,
"seleniumProtocol": "WebDriver"
}
],
"custom": {
},
"debug": false,
"downPollingLimit": 2,
"enablePlatformVerification": true,
"host": "0.0.0.0",
"hub": "http:\u002f\u002f192.168.1.6:4445\u002fwd\u002fhub",
"maxSession": 5,
"nodePolling": 5000,
"nodeStatusCheckTimeout": 5000,
"port": -1,
"proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
"register": true,
"registerCycle": 5000,
"role": "node",
"servlets": [
],
"unregisterIfStillDownAfter": 60000,
"withoutServlets": [
]
}
The critical settings can be specified in the command line, but I think the config file is more manageable.

Nightwatch vs. self signed certificates

My nightwatch.js setup for Geckodriver is as follows:
"firefox": {
"launch_url": "...",
"selenium_port": 4444,
"selenium_host": "localhost",
"silent": true,
...
"desiredCapabilities": {
"browserName": "gecko",
"marionette": true,
"acceptSslCerts": true
}
}
When running, all tests fail because my certificate is insecure testing on a local installation and enforced ssl. Chromedriver (with basically identical setup) seems to accept the "acceptSslCerts" property and ignores the wrong cert. Geckodriver does not. Is the config wrong or does Nightwatch or Selenium have a problem with "acceptSslCerts"?
I am using the latest version of Geckodriver and Selenium 3.8.1
It looks like the correct capability for the firefox driver is acceptInsecureCerts.
You can see it listed here.

Error when running Selenium Server via Nightwatch

I'm attempting to run a simple test script. But I receive the following error:
I have my nightwatch config file setup as so:
nightwatch.conf.js
module.exports = {
"src_folders": [
"tests"// Where you are storing your Nightwatch e2e/UAT tests
],
"output_folder": "./reports", // reports (test outcome) output by nightwatch
"selenium": {
"start_process": true, // tells nightwatch to start/stop the selenium process
"server_path": "./node_modules/selenium-standalone/.selenium/selenium-server/2.53.1-server.jar",
"host": "127.0.0.1",
"port": 4444, // standard selenium port
"cli_args": { "webdriver.chrome.driver" : "./node_modules/selenium-standalone/.selenium/chromedriver/2.25-x64-chromedriver"
}
},
"test_settings": {
"default": {
"screenshots": {
"enabled": true, // if you want to keep screenshots
"path": './screenshots' // save screenshots here
},
"globals": {
"waitForConditionTimeout": 5000 // sometimes internet is slow so wait.
},
"desiredCapabilities": { // use Chrome as the default browser for tests
"browserName": "chrome"
}
},
"chrome": {
"desiredCapabilities": {
"browserName": "chrome",
"javascriptEnabled": true // set to false to test progressive enhancement
}
}
}
}
guinea-pig.js
module.exports = { // addapted from: https://git.io/vodU0
'Guinea Pig Assert Title': function(browser) {
browser
.url('https://saucelabs.com/test/guinea-pig')
.waitForElementVisible('body')
.assert.title('I am a page title - Sauce Labs')
.saveScreenshot('ginea-pig-test.png')
.end();
}
};
The server path and chromedriver path are accurate and the most recent copy. I also have the latest version of chrome installed. Can someone please help me understand what could be the problem? Thanks!
Edit: I've also restarted the whole computer, same issue.
Try using the latest version of the Selenium standalone server v.3.0.1
If that doesn't work, then you can upgrade your chromedriver to the latest version and test. You can find the different versions here:
https://chromedriver.storage.googleapis.com/index.html
Also make sure you are using the most recent version of Nightwatch v0.9.9 and update it in you package.json file.
It is written very clear , your chrome version is lower than what chromedriver needs, just update your chrome to the latest version

Launch Safari on Mac node from Windows PC with Selenium RemoteWebDriver and Grid

I'm trying to fire off a test to my iMac from my Windows PC.
I have downloaded and installed the webdriver addon for Safari and I have established a connection to my Windows based Selenium Grid hub.
When I try to run my test I receive an error for an OperaDriver:
org.openqa.selenium.WebDriverException: The best matching driver provider org.openqa.selenium.opera.OperaDriver can't create a new driver instance for Capabilities [{browserName=safari, safari.options={port=0, cleanSession=true}, version=9, platform=MAC}]
Current Setup:
Windows PC:
java -jar selenium-server-standalone-2.53.0.jar -role hub -port 4445
Mac:
java -jar selenium-server-standalone-2.53.0.jar -role node -nodeConfig node1Config.json
node1Config:
{
"capabilities": [
{
"browserName": "safari",
"acceptSslCerts": true,
"javascriptEnabled": true,
"takeScreenshot": false,
"browser-version": "9",
"platform": "MAC",
"maxInstances": 5,
"cleanSession": true
}
],
"configuration": {
"_comment": "Configuration for Node",
"cleanUpCycle": 2000,
"timeout": 30000,
"proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
"port": 5568,
"hubHost": "MyNetworkIpWasHere",
"register": true,
"hubPort": 4445,
"maxSessions": 5
}
}
Java to launch test:
DesiredCapabilities capabilities = DesiredCapabilities.safari();
capabilities.setPlatform(Platform.MAC);
capabilities.setBrowserName("safari");
capabilities.setVersion("9");
webDriver = new RemoteWebDriver(new URL("http://myipwashere:4445/wd/hub"), capabilities);
Edit: There are 5 safari nodes available on my grid, none are being used.
I must be overlooking something, any help would be greatly appreciated!
Thanks in advance.
After much trial and error, the URL being passed to the remotewebdriver was incorrect only for Safari. Hopefully this will help someone that has a similar problem in the future.
Thanks RemcoW for all of your help.

Setting up a node on a VM

I have my selenium all configured but seem to be having issues getting it to launch the browser on my windows VM. I think it's because I haven't haven't included the correct path to the driver. Currently it stands as...
java -jar .\selenium-server-standalone-2.39.0.jar -role node -port 1001 -hub http://xxx.xxx.xx.xxx:4444/grid/register
After reading online I assumed it's cause I'm missing the following...
-Dwebdriver.ie.driver="C:\selenium\IEDriverServer.exe"
I've tried various different ways to include this path into the above statement but keep getting 'poorly formatted Java property setting (I expect to see '=') -Dwebdriver: Usage: java -jar selenium-server.jar [-interactive] [options]'
if anyone could show me the correct format I'd really appreciate it.
Thanks.
According to documentation, you can use a system property:
System.setProperty("webdriver.ie.driver", "C:\selenium\IEDriverServer.exe")
Of course this path would have be the correct on the remote machine!
If you use Maven for your builds, then the Selenium binary downloader might interest you.
I would suggest running the node and having the node load a .json config file that looks something like this.
{
"capabilities":
[
{
"browserName": "firefox",
"acceptSslCerts": true,
"javascriptEnabled": true,
"takesScreenshot": false,
"firefox_profile": "",
"browser-version": "31",
"platform": "WINDOWS",
"maxInstances": 5
},
{
"browserName": "chrome",
"maxInstances": 5,
"platform": "WINDOWS"
},
{
"browserName": "internetExplorer",
"maxInstances": 1,
"platform": "WINDOWS"
}
],
"configuration":
{
"_comment" : "This is configuration for the grid node 1.",
"cleanUpCycle": 2000,
"timeout": 30000,
"proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
"port": 5555,
"host": ip,
"Dwebdriver.chrome.driver=C:\\Selenium\\chromedriver.exe": "",
"Dwebdriver.ie.driver=C:\\Selenium\\IEDriverServer.exe": "",
"register": true,
"hubPort": 4444,
"maxSessions": 5
}
}