Feature: Support Cucumber usage reporter

[adamwood-novafori]

The problem
I find it hard to find out if I have any unused steps

A solution
When running bddgen export it would be nice to see a count next to the step name to locate any unused ones

[Zialus]

This is available as the usage reporter plugin of cucumber.js. Unfortunately it doesn't seems to be supported yet on playwright-bdd, even after the recent addition of cucumber reports.

[vitalets]

Good point, we should definitely support Cucumber usage reporter. The reason why it is not implemented yet - it relies on step definitions. To have them in Playwright reporter output, playwright-bdd should re-read step definition files once again in the reporter process or pass them as a metadata.

Another option as a lightweight solution - enhance bddgen export command to output unused steps, e.g. bddgen export --unused-steps. The output will not contain duration of each step, but the command will run very fast, because it does not actually run tests.

[adamwood-novafori]

Maybe lightweight solution first and support usage reporter further down the line?

[vitalets]

Partially related to #53

[vitalets]

Flag --unused-steps released in v6.1.0. Now you can run:

npx bddgen export --unused-steps

Output:

Using config: playwright.config.ts
List of unused steps (1):
* Then I see in title {string}

Currently unused steps are displayed without file location, will add it in the next release.

Keep this issue open for Cucumber usage reporter.