Is it possible to access a variable declared in wdio.conf?

Question

In the wdio.conf onPrepare I am storing all my feature file's in a array.

let listOfFiles = fs.readdirSync(process.cwd() + '/features');
var featureFiles = [];

listOfFiles.map((file) => {
    featureFiles.push(file)
});

Is it possible to use the featureFiles array in another file?

I want to generate an list of feature files during execution and assign it to the variable "featureFiles" (which is declared but has no value to begin with). From what I've seen so far it's not possible to do this in wdio.conf as you will always get the value declared for your variable at the beginning.. which in my case is an empty array.

Possible duplicate of [WebdriverIO: How to read baseURL value from wdio.conf.js. inside step definition file](https://stackoverflow.com/questions/44571364/webdriverio-how-to-read-baseurl-value-from-wdio-conf-js-inside-step-definition) — iamdanchiv, Oct 22 '19 at 10:04

score 0 · Answer 1 · edited Sep 18 '20 at 16:59

0

Yes, in the file you posted here, add:

module.exports = featureFiles

In the other file where you'd like to use featureFiles you can do something like:

const featureFiles = require('path/to/your/first/file`);

edited Sep 18 '20 at 16:59

Aulis Ronkainen

152
2
2
9

answered Oct 19 '19 at 13:01

schu34

821
8
21

When I put a `module.exports = featureFiles` in the wdio.conf I get the following error on run: ```2019-10-21T08:05:55.056Z INFO @wdio/cli:Launcher: Run onPrepare hook 2019-10-21T08:05:55.057Z ERROR @wdio/cli:Launcher: Missing capabilities, exiting with failure 2019-10-21T08:05:55.058Z INFO @wdio/cli:Launcher: Run onComplete hook``` – Daredevi1 Oct 21 '19 at 08:07

score 0 · Answer 2 · answered Oct 19 '19 at 17:41

0

So if you want to use featureFiles throughout your test script, then one of the options that we follow is using global object.

In your wdio.conf file, try the following:

let featureFiles = [];
...
export.config = {
    ... //some line of code

    //OnPrepare hook
    onPrepare(){
        let listOfFiles = fs.readdirSync(process.cwd() + '/features');

        listOfFiles.map((file) => {
            featureFiles.push(file);
        });
    }

    //before session hook
    beforeSession(){
        global.featureFiles = featureFiles; //assigning the value of featureFiles to a global variable
    }
}

Once the above is done. The variable featureFiles would be available on all the test files.

NOTE: vscode intellisense might not recognize the variable but you can still use it.

answered Oct 19 '19 at 17:41

Naveen Thiyagarajan

496
5
11

I've done the above in wdio.conf, then in randomNumber.js I'm trying to console.log(global.featureFiles), however I get an error on featureFiles because "featureFiles does not exist on type 'Global'". Not sure how I would be able to call featureFiles from test files? – Daredevi1 Oct 21 '19 at 10:05
Hi @Daredevi1 just try `console.log(featureFiles)` ignoring `global` – Naveen Thiyagarajan Oct 21 '19 at 13:19
Just prints out a blank line – Daredevi1 Oct 21 '19 at 15:03
Ohh .. does featureFile has value before assigning to global? can you try by passing a hard coded value – Naveen Thiyagarajan Oct 21 '19 at 15:40
If I hardcode a value to featureFile then it prints out the hardcoded value, otherwise it's blank. – Daredevi1 Oct 21 '19 at 16:23
ok .. so the issue is the variable `featureFiles` on the `beforeSession` does not have a value in it. May be you can debug or provide your whole `wdio.conf` file to see where it can be wrong – Naveen Thiyagarajan Oct 21 '19 at 16:31
You've managed to get it working like this on your wdio.conf? – Daredevi1 Oct 22 '19 at 08:06
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/201269/discussion-between-naveen-thiyagarajan-and-daredevi1). – Naveen Thiyagarajan Oct 22 '19 at 14:28

Is it possible to access a variable declared in wdio.conf?

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