fix: flaky system-tests-firefox job (#18848)

Co-authored-by: Zach Bloomquist <github@chary.us>

Author: davidmunechika

packages/server/lib/errors.js

@@ -879,7 +879,7 @@ const getMsgByType = function (type, arg1 = {}, arg2, arg3) {
 
         ${arg1.stack}`
     case 'CDP_RETRYING_CONNECTION':
-      return `Failed to connect to ${arg2}, retrying in 1 second (attempt ${chalk.yellow(arg1)}/62)`
+      return `Still waiting to connect to ${arg2}, retrying in 1 second (attempt ${chalk.yellow(arg1)}/62)`
     case 'DEPRECATED_BEFORE_BROWSER_LAUNCH_ARGS':
       return stripIndent`\
         Deprecation Warning: The \`before:browser:launch\` plugin event changed its signature in version \`4.0.0\`

packages/server/test/unit/browsers/protocol_spec.ts

@@ -35,7 +35,7 @@ describe('lib/browsers/protocol', () => {
       log.getCalls().forEach((log, i) => {
         const line = stripAnsi(log.args[0])
 
-        expect(line).to.include(`Failed to connect to FooBrowser, retrying in 1 second (attempt ${i + 18}/62)`)
+        expect(line).to.include(`Still waiting to connect to FooBrowser, retrying in 1 second (attempt ${i + 18}/62)`)
       })
 
       snapshot(delays)
@@ -180,7 +180,7 @@ describe('lib/browsers/protocol', () => {
       log.getCalls().forEach((log, i) => {
         const line = stripAnsi(log.args[0])
 
-        expect(line).to.include(`Failed to connect to FooBrowser, retrying in 1 second (attempt ${i + 18}/62)`)
+        expect(line).to.include(`Still waiting to connect to FooBrowser, retrying in 1 second (attempt ${i + 18}/62)`)
       })
     })
   })

system-tests/lib/system-tests.ts

@@ -441,6 +441,8 @@ const normalizeStdout = function (str, options: any = {}) {
   .replace(/^(\- )(\/.*\/packages\/server\/)(.*)$/gm, '$1$3')
   // Different browsers have different cross-origin error messages
   .replace(crossOriginErrorRe, '[Cross origin error message]')
+  // Replaces connection warning since Firefox sometimes takes longer to connect
+  .replace(/Still waiting to connect to Firefox, retrying in 1 second \(attempt .+\/.+\)/g, '')
 
   if (options.sanitizeScreenshotDimensions) {
     // screenshot dimensions

system-tests/projects/e2e/cypress/integration/screenshots_spec.js

@@ -158,7 +158,7 @@ describe('taking screenshots', () => {
         const total = first + second + third + fourth
         const padding = 2000 // account for slower machines
 
-        expect(duration).to.be.within(total, total + padding)
+        expect(duration).to.be.within(total - padding, total + padding)
       },
     })
   })