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test(web): browser tests from different checkouts no longer fight over one port #20875

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Merged
juliusmarminge merged 1 commit into from
Oct 17, 2026
Merged

test(web): browser tests from different checkouts no longer fight over one port #20875

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8 changes: 8 additions & 0 deletions apps/web/vite.config.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ import { playwright } from "vite-plus/test/browser-playwright";
import { defineProject, type TestProjectInlineConfiguration } from "vite-plus/test/config";
import "vite-plus/test/config";
import { defineConfig, type Connect, type Plugin } from "vite-plus";
import * as Hash from "effect/Hash";
import pkg from "./package.json" with { type: "json" };

import {
Expand Down Expand Up @@ -80,6 +81,12 @@ const unitTestProject = {

// Anything that renders React or touches the DOM is named *.browser.test.{ts,tsx} and runs
// in headless Chromium through the same plugins as the app, so it exercises compiled code.
// Vitest's fixed browser API port (63315) collides when two checkouts run
// browser tests at once, and `server.strictPort` above is inherited, so the
// second run fails instead of moving on. Hash the checkout path like
// scripts/dev-runner.ts does, into 61000-64999 (above Linux's ephemeral range).
const browserTestApiPort = 61_000 + ((Hash.string(import.meta.dirname) >>> 0) % 4_000);

const browserTestProject = {
extends: true,
// Pre-bundled so the first test importing userEvent does not trigger a mid-run reload.
Expand All @@ -89,6 +96,7 @@ const browserTestProject = {
include: ["src/**/*.browser.test.{ts,tsx}"],
hookTimeout: 15_000,
testTimeout: 15_000,
api: { port: browserTestApiPort, strictPort: false },
browser: {
enabled: true,
headless: true,
Expand Down
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