Protractor W3C capability - protractor

Question

I am using Protractor with Selenoid. I need to use the dockerized Windows images so that I can test Internet Explorer and Edge from Linux boxes.
I was able to make it work from curl by running:
curl -X POST http://127.0.0.1:4444/wd/hub/session -d '{"capabilities":{"browserName":"MicrosoftEdge","count":1,"alwaysMatch":{"browserName":"MicrosoftEdge","selenoid:options":{"enableVNC":true,"enableVideo":false,"enableLog":true,"logName":"edge-18.0.log"}}}}'
My protractor config looks like:
multiCapabilities: [
{
browserName: "MicrosoftEdge",
"alwaysMatch": {
browserName: "MicrosoftEdge",
"selenoid:options": {
enableVNC: true,
enableVideo: false,
enableLog: true,
logName: "edge-18.0.log"
}
}
}
]
But protractor send it over the selenoid server like this:
{
"desiredCapabilities": {
"browserName": "MicrosoftEdge",
"count": 1,
"alwaysMatch": {
"browserName": "MicrosoftEdge",
"selenoid:options": {
"enableVNC": true,
"enableVideo": false,
"enableLog": true,
"logName": "edge-18.0.log"
}
}
}
}
The issue is that desiredCapabilities should just be 'capabilities`. I have been looking everywhere trying to find out where is that created so that I can created some sort of flag to be able to switch it.
Any ideas?

Answer 1

Using Protractor 6.0 solve my issue, but broke all my tests.
I was able to keep using 5.4.1 by patching the selenium-webdriver package. Looking at the way Protractor 6 did it, I did it to Protractor 5.4.1:
I edited the file located at node_modules/selenium-webdriver/lib/webdriver.js and added the following:
// Capability names that are defined in the W3C spec.
const W3C_CAPABILITY_NAMES = new Set([
'acceptInsecureCerts',
'browserName',
'browserVersion',
'platformName',
'pageLoadStrategy',
'proxy',
'setWindowRect',
'timeouts',
'unhandledPromptBehavior',
]);
Then in the same file I modify the static createSession(executor, capabilities, opt_flow, opt_onQuit) method to add the following:
let W3CCaps = new Capabilities(capabilities);
for (let k of W3CCaps.keys()) {
// Any key containing a colon is a vendor-prefixed capability.
if (!(W3C_CAPABILITY_NAMES.has(k) || k.indexOf(':') >= 0)) {
W3CCaps.delete(k);
}
}
cmd.setParameter('capabilities', W3CCaps);
After all those changes the request getting to Selenoid is like this:
{
"desiredCapabilities": {
"browserName": "MicrosoftEdge",
"version": "18.0",
"enableVNC": true,
"enableVideo": false,
"count": 1
},
"capabilities": {
"browserName": "MicrosoftEdge"
}
}
And my Protractor 5 config looks like this:
multiCapabilities: [{
browserName: 'MicrosoftEdge',
version: '18.0',
enableVNC: true,
enableVideo: false
}]
Note:
So that I don't have to worry about refresh installs or updates I use the package patch-package (https://github.com/ds300/patch-package) to create a patch that is applied when any of those events happen. Here is a great video explaining how to use that package https://www.youtube.com/watch?v=zBPcVGr6XPk