Setup

Once you have a Fable.Electron base setup, you can install wdio.

npm init wdio@latest ./

tip

You can follow the instructions on the electron documentation page.

Configuration

For capabilities, you should have:

wdio.conf.js
{
    // ...
    capabilities: [
        {
            browserName: 'electron',
            'wdio:electronServiceOptions': {
                appArgs: []
            }
        }
    ]
}

You then need to ensure that you package the application before running the test-runner.

You can combine this with your Transpilation step within a package.json.

package.json
{
  "scripts": {
    "pretest": "dotnet fable -e .js --noCache --run electron-forge package",
    "test": "wdio run ./wdio.conf.js"
  }
}

Explanation

dotnet fable -e .js --noCache --run electron-forge package

dotnet fable - activating the transpiler
-e .js - using the .js extension (can make this whatever you want so long as your wdio.conf.js file is setup correctly to pick up your extension).
--noCache - force retranspilation of code and dependencies.
--run electron-forge package - tells Fable to run everything after the --run when the compilation is complete.

Since this is set as a pre hook in the package.json, if we were to run npm run test then it would compile and package the application before running the test suites.

Configuration​

Configuration