fix(playwright): replace constructor.name checks with stable public API (#5559) (#5560)

* fix(playwright): replace constructor.name checks with stable public API (#5559)

Playwright 1.60 switched to an esbuild bundle which silently renames
internal classes (e.g. Locator → _Locator), breaking all constructor.name
checks. Replace them with duck-typing on stable public-API methods:
Page/Frame expose url(), Locator exposes innerText(), FrameLocator exposes
neither. Also adds a regression test that calls I.see() without an explicit
context inside a CSS within() block — the exact path that timed out.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* ci: trigger GitHub Actions after base branch change

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: mirao

lib/helper/Playwright.js

@@ -2683,7 +2683,7 @@ class Playwright extends Helper {
     if (arg && typeof arg.evaluate === 'function' && typeof arg.locator === 'function') {
       return arg.evaluate(fn)
     }
-    if (this.context && this.context.constructor.name === 'FrameLocator') {
+    if (this.context && typeof this.context.url !== 'function' && typeof this.context.innerText !== 'function') {
       return this.context.locator(':root').evaluate(fn, arg)
     }
     return this.page.evaluate.apply(this.page, [fn, arg])
@@ -3420,7 +3420,7 @@ class Playwright extends Helper {
   }
 
   async _getContext() {
-    if ((this.context && this.context.constructor.name === 'FrameLocator') || this.context) {
+    if (this.context) {
       return this.context
     }
     if (this.frame) {
@@ -4359,7 +4359,9 @@ async function proceedSee(assertType, text, context, strict = false) {
   if (!context) {
     const el = await this.context
 
-    allText = el.constructor.name !== 'Locator' ? [await el.locator('body').innerText()] : [await el.innerText()]
+    allText = typeof el.url !== 'function' && typeof el.innerText === 'function'
+      ? [await el.innerText()]
+      : [await el.locator('body').innerText()]
 
     description = 'web application'
   } else {

test/helper/webapi.js

@@ -1659,6 +1659,13 @@ export function tests() {
         if (!err) assert.fail('seen "Information"')
       }
     })
+
+    it('within on css locator should use locator scope in see without explicit context', async function () {
+      await I.amOnPage('/form/example4')
+      await I._withinBegin({ css: '#register' })
+      await I.see('E-Mail')
+      await I.dontSee('Toggle navigation')
+    })
   })
 
   describe('scroll: #scrollTo, #scrollPageToTop, #scrollPageToBottom', () => {