feat(playwright): use target as baseURL by default

[bernardobridge]

Description

target will now be used as Playwright's baseURL by default. This change makes artillery-engine-playwright more consistent with Playwright (which allows the baseURL config option), and simplifies the job of reusing a Playwright test as an Artillery test, as you can simply set the target as the baseURL option from your Playwright tests, and keep the test scripts the same.

Testing

• Tested existing test scripts from examples - they work as normal with the full URL, and work when we pass just the path (e.g. await page.goto('/docs')).

Note: I'll change some of the examples to leverage this when a new CLI version contains the change.

Pre-merge checklist

• Does this require an update to the docs? Yes
• Does this require a changelog entry? Yes

[hassy]

lgtm!

[flazouh]

I'm having trouble configuring this, this is my yaml:

config:
  engines:
    playwright: {
      contextOptions: {
        baseURL: "http://localhost:3000"
      }
    }
  processor: "./main.ts"
scenarios:
  - engine: playwright
    testFunction: "main"

Because it says

Error: No target specified and no environment chosen

What's the point of this PR if I have to repeat the target if it's already set in the baseURL ?

[hassy]

@alexandredepape the point is that you need to set target which will be passed into Playwright config as the baseURL. You don't need to set it via contextOptions.

[flazouh]

Got it, thanks 👌