fix: filter projects eagerly during config resolution

packages/browser/src/node/pool.ts

@@ -133,6 +133,9 @@ export function createBrowserPool(vitest: Vitest): ProcessPool {
       }
       await project._initBrowserProvider()
 
+      if (!project.browser) {
+        throw new TypeError(`The browser server was not initialized${project.name ? ` for the "${project.name}" project` : ''}. This is a bug in Vitest. Please, open a new issue with reproduction.`)
+      }
       await executeTests(method, project, files)
     }
   }

packages/utils/src/source-map.ts

@@ -167,7 +167,9 @@ export function parseSingleV8Stack(raw: string): ParsedStack | null {
   }
 
   // normalize Windows path (\ -> /)
-  file = resolve(file)
+  file = file.startsWith('node:') || file.startsWith('internal:')
+    ? file
+    : resolve(file)
 
   if (method) {
     method = method.replace(/__vite_ssr_import_\d+__\./g, '')

packages/vitest/src/node/config/resolveConfig.ts

@@ -1,11 +1,10 @@
 import type { ResolvedConfig as ResolvedViteConfig } from 'vite'
-import type { Logger } from '../logger'
+import type { Vitest } from '../core'
 import type { BenchmarkBuiltinReporters } from '../reporters'
 import type {
   ApiConfig,
   ResolvedConfig,
   UserConfig,
-  VitestRunMode,
 } from '../types/config'
 import type { BaseCoverageOptions, CoverageReporterWithOptions } from '../types/coverage'
 import type { BuiltinPool, ForksOptions, PoolOptions, ThreadsOptions } from '../types/pool-options'
@@ -20,7 +19,6 @@ import {
   extraInlineDeps,
 } from '../../constants'
 import { benchmarkConfigDefaults, configDefaults } from '../../defaults'
-import { wildcardPatternToRegExp } from '../../utils/base'
 import { isCI, stdProvider } from '../../utils/env'
 import { getWorkersCountByPercentage } from '../../utils/workers'
 import { VitestCache } from '../cache'
@@ -111,11 +109,12 @@ function resolveInlineWorkerOption(value: string | number): number {
 }
 
 export function resolveConfig(
-  mode: VitestRunMode,
+  vitest: Vitest,
   options: UserConfig,
   viteConfig: ResolvedViteConfig,
-  logger: Logger,
 ): ResolvedConfig {
+  const mode = vitest.mode
+  const logger = vitest.logger
   if (options.dom) {
     if (
       viteConfig.test?.environment != null
@@ -142,6 +141,7 @@ export function resolveConfig(
     mode,
   } as any as ResolvedConfig
 
+  resolved.project = toArray(resolved.project)
   resolved.provide ??= {}
 
   const inspector = resolved.inspect || resolved.inspectBrk
@@ -256,15 +256,15 @@ export function resolveConfig(
     }
   }
 
-  const playwrightChromiumOnly = isPlaywrightChromiumOnly(resolved)
+  const playwrightChromiumOnly = isPlaywrightChromiumOnly(vitest, resolved)
 
   // Browser-mode "Playwright + Chromium" only features:
   if (browser.enabled && !playwrightChromiumOnly) {
     const browserConfig = {
       browser: {
         provider: browser.provider,
         name: browser.name,
-        instances: browser.instances,
+        instances: browser.instances?.map(i => ({ browser: i.browser })),
       },
     }
 
@@ -469,7 +469,7 @@ export function resolveConfig(
   resolved.forceRerunTriggers.push(...resolved.snapshotSerializers)
 
   if (options.resolveSnapshotPath) {
-    delete (resolved as UserConfig).resolveSnapshotPath
+    delete (resolved as any).resolveSnapshotPath
   }
 
   resolved.pool ??= 'threads'
@@ -897,7 +897,7 @@ export function resolveCoverageReporters(configReporters: NonNullable<BaseCovera
   return resolvedReporters
 }
 
-function isPlaywrightChromiumOnly(config: ResolvedConfig) {
+function isPlaywrightChromiumOnly(vitest: Vitest, config: ResolvedConfig) {
   const browser = config.browser
   if (!browser || browser.provider !== 'playwright' || !browser.enabled) {
     return false
@@ -908,11 +908,10 @@ function isPlaywrightChromiumOnly(config: ResolvedConfig) {
   if (!browser.instances) {
     return false
   }
-  const filteredProjects = toArray(config.project).map(p => wildcardPatternToRegExp(p))
   for (const instance of browser.instances) {
     const name = instance.name || (config.name ? `${config.name} (${instance.browser})` : instance.browser)
     // browser config is filtered out
-    if (filteredProjects.length && !filteredProjects.every(p => p.test(name))) {
+    if (!vitest._matchesProjectFilter(name)) {
       continue
     }
     if (instance.browser !== 'chromium') {

packages/vitest/src/node/core.ts

@@ -40,7 +40,7 @@ import { VitestSpecifications } from './specifications'
 import { StateManager } from './state'
 import { TestRun } from './test-run'
 import { VitestWatcher } from './watcher'
-import { resolveBrowserWorkspace, resolveWorkspace } from './workspace/resolveWorkspace'
+import { getDefaultTestProject, resolveBrowserWorkspace, resolveWorkspace } from './workspace/resolveWorkspace'
 
 const WATCHER_DEBOUNCE = 100
 
@@ -90,14 +90,19 @@ export class Vitest {
   /** @internal */ closingPromise?: Promise<void>
   /** @internal */ isCancelling = false
   /** @internal */ coreWorkspaceProject: TestProject | undefined
-  /** @internal */ resolvedProjects: TestProject[] = []
+  /**
+   * @internal
+   * @deprecated
+   */
+  resolvedProjects: TestProject[] = []
   /** @internal */ _browserLastPort = defaultBrowserPort
   /** @internal */ _browserSessions = new BrowserSessions()
   /** @internal */ _options: UserConfig = {}
   /** @internal */ reporters: Reporter[] = undefined!
   /** @internal */ vitenode: ViteNodeServer = undefined!
   /** @internal */ runner: ViteNodeRunner = undefined!
   /** @internal */ _testRun: TestRun = undefined!
+  /** @internal */ _projectFilters: RegExp[] = []
 
   private isFirstRun = true
   private restartsCount = 0
@@ -211,9 +216,11 @@ export class Vitest {
     this.specifications.clearCache()
     this._onUserTestsRerun = []
 
-    const resolved = resolveConfig(this.mode, options, server.config, this.logger)
-
+    this._projectFilters = toArray(options.project || []).map(project => wildcardPatternToRegExp(project))
     this._vite = server
+
+    const resolved = resolveConfig(this, options, server.config)
+
     this._config = resolved
     this._state = new StateManager()
     this._cache = new VitestCache(this.version)
@@ -272,14 +279,8 @@ export class Vitest {
     const projects = await this.resolveWorkspace(cliOptions)
     this.resolvedProjects = projects
     this.projects = projects
-    const filters = toArray(resolved.project).map(s => wildcardPatternToRegExp(s))
-    if (filters.length > 0) {
-      this.projects = this.projects.filter(p =>
-        filters.some(pattern => pattern.test(p.name)),
-      )
-      if (!this.projects.length) {
-        throw new Error(`No projects matched the filter "${toArray(resolved.project).join('", "')}".`)
-      }
+    if (!this.projects.length) {
+      throw new Error(`No projects matched the filter "${toArray(resolved.project).join('", "')}".`)
     }
     if (!this.coreWorkspaceProject) {
       this.coreWorkspaceProject = TestProject._createBasicProject(this)
@@ -397,8 +398,15 @@ export class Vitest {
 
     this._workspaceConfigPath = workspaceConfigPath
 
+    // user doesn't have a workspace config, return default project
     if (!workspaceConfigPath) {
-      return resolveBrowserWorkspace(this, new Set(), [this._ensureRootProject()])
+      // user can filter projects with --project flag, `getDefaultTestProject`
+      // returns the project only if it matches the filter
+      const project = getDefaultTestProject(this)
+      if (!project) {
+        return []
+      }
+      return resolveBrowserWorkspace(this, new Set(), [project])
     }
 
     const workspaceModule = await this.import<{
@@ -858,15 +866,15 @@ export class Vitest {
   /** @internal */
   async changeProjectName(pattern: string): Promise<void> {
     if (pattern === '') {
-      delete this.configOverride.project
+      this.configOverride.project = undefined
+      this._projectFilters = []
     }
     else {
-      this.configOverride.project = pattern
+      this.configOverride.project = [pattern]
+      this._projectFilters = [wildcardPatternToRegExp(pattern)]
     }
 
-    this.projects = this.resolvedProjects.filter(p => p.name === pattern)
-    const files = (await this.globTestSpecifications()).map(spec => spec.moduleId)
-    await this.rerunFiles(files, 'change project filter', pattern === '')
+    await this.vite.restart()
   }
 
   /** @internal */
@@ -1247,6 +1255,18 @@ export class Vitest {
   onAfterSetServer(fn: OnServerRestartHandler): void {
     this._onSetServer.push(fn)
   }
+
+  /**
+   * Check if the project with a given name should be included.
+   * @internal
+   */
+  _matchesProjectFilter(name: string): boolean {
+    // no filters applied, any project can be included
+    if (!this._projectFilters.length) {
+      return true
+    }
+    return this._projectFilters.some(filter => filter.test(name))
+  }
 }
 
 function assert(condition: unknown, property: string, name: string = property): asserts condition {

packages/vitest/src/node/errors.ts

@@ -39,3 +39,11 @@ export class RangeLocationFilterProvidedError extends Error {
       + `are not supported.  Consider specifying the exact line numbers of your tests.`)
   }
 }
+
+export class VitestFilteredOutProjectError extends Error {
+  code = 'VITEST_FILTERED_OUT_PROJECT'
+
+  constructor() {
+    super('VITEST_FILTERED_OUT_PROJECT')
+  }
+}

packages/vitest/src/node/plugins/index.ts

@@ -63,9 +63,9 @@ export async function VitestPlugin(
 
         // store defines for globalThis to make them
         // reassignable when running in worker in src/runtime/setup.ts
-        const defines: Record<string, any> = deleteDefineConfig(viteConfig);
+        const defines: Record<string, any> = deleteDefineConfig(viteConfig)
 
-        (options as ResolvedConfig).defines = defines
+        ;(options as unknown as ResolvedConfig).defines = defines
 
         let open: string | boolean | undefined = false
 
@@ -145,6 +145,11 @@ export async function VitestPlugin(
           },
         }
 
+        if (ctx.configOverride.project) {
+          // project filter was set by the user, so we need to filter the project
+          options.project = ctx.configOverride.project
+        }
+
         config.customLogger = createViteLogger(
           ctx.logger,
           viteConfig.logLevel || 'warn',
@@ -217,9 +222,9 @@ export async function VitestPlugin(
         return config
       },
       async configResolved(viteConfig) {
-        const viteConfigTest = (viteConfig.test as any) || {}
+        const viteConfigTest = (viteConfig.test as UserConfig) || {}
         if (viteConfigTest.watch === false) {
-          viteConfigTest.run = true
+          ;(viteConfigTest as any).run = true
         }
 
         if ('alias' in viteConfigTest) {
@@ -255,6 +260,13 @@ export async function VitestPlugin(
           enumerable: false,
           configurable: true,
         })
+
+        const originalName = options.name
+        if (options.browser?.enabled && options.browser?.instances) {
+          options.browser.instances.forEach((instance) => {
+            instance.name ??= originalName ? `${originalName} (${instance.browser})` : instance.browser
+          })
+        }
       },
       configureServer: {
         // runs after vite:import-analysis as it relies on `server` instance on Vite 5

packages/vitest/src/node/plugins/publicConfig.ts

@@ -45,10 +45,9 @@ export async function resolveConfig(
   // Reflect just to avoid type error
   const updatedOptions = Reflect.get(config, '_vitest') as UserConfig
   const vitestConfig = resolveVitestConfig(
-    'test',
+    vitest,
     updatedOptions,
     config,
-    vitest.logger,
   )
   return {
     viteConfig: config,

packages/vitest/src/node/plugins/workspace.ts

@@ -6,6 +6,7 @@ import { deepMerge } from '@vitest/utils'
 import { basename, dirname, relative, resolve } from 'pathe'
 import { configDefaults } from '../../defaults'
 import { generateScopedClassName } from '../../integrations/css/css-modules'
+import { VitestFilteredOutProjectError } from '../errors'
 import { createViteLogger, silenceImportViteIgnoreWarning } from '../viteLogger'
 import { CoverageTransform } from './coverageTransform'
 import { CSSEnablerPlugin } from './cssEnabler'
@@ -62,6 +63,35 @@ export function WorkspaceVitestPlugin(
           }
         }
 
+        // keep project names to potentially filter it out
+        const workspaceNames = [name]
+        if (viteConfig.test?.browser?.enabled) {
+          if (viteConfig.test.browser.name) {
+            const browser = viteConfig.test.browser.name
+            // vitest injects `instances` in this case later on
+            workspaceNames.push(name ? `${name} (${browser})` : browser)
+          }
+
+          viteConfig.test.browser.instances?.forEach((instance) => {
+            // every instance is a potential project
+            instance.name ??= name ? `${name} (${instance.browser})` : instance.browser
+            workspaceNames.push(instance.name)
+          })
+        }
+
+        const filters = project.vitest.config.project
+        // if there is `--project=...` filter, check if any of the potential projects match
+        // if projects don't match, we ignore the test project altogether
+        // if some of them match, they will later be filtered again by `resolveWorkspace`
+        if (filters.length) {
+          const hasProject = workspaceNames.some((name) => {
+            return project.vitest._matchesProjectFilter(name)
+          })
+          if (!hasProject) {
+            throw new VitestFilteredOutProjectError()
+          }
+        }
+
         const config: ViteConfig = {
           root,
           resolve: {
@@ -92,7 +122,7 @@ export function WorkspaceVitestPlugin(
             fs: {
               allow: resolveFsAllow(
                 project.vitest.config.root,
-                project.vitest.server.config.configFile,
+                project.vitest.vite.config.configFile,
               ),
             },
           },
@@ -138,7 +168,7 @@ export function WorkspaceVitestPlugin(
           }
         }
         config.customLogger = createViteLogger(
-          project.logger,
+          project.vitest.logger,
           viteConfig.logLevel || 'warn',
           {
             allowClearScreen: false,

packages/vitest/src/node/project.ts

@@ -577,13 +577,12 @@ export class TestProject {
   /** @internal */
   async _configureServer(options: UserConfig, server: ViteDevServer): Promise<void> {
     this._config = resolveConfig(
-      this.vitest.mode,
+      this.vitest,
       {
         ...options,
         coverage: this.vitest.config.coverage,
       },
       server.config,
-      this.vitest.logger,
     )
     for (const _providedKey in this.config.provide) {
       const providedKey = _providedKey as keyof ProvidedContext

packages/vitest/src/node/stdin.ts

@@ -2,7 +2,6 @@ import type { Writable } from 'node:stream'
 import type { Vitest } from './core'
 import readline from 'node:readline'
 import { getTests } from '@vitest/runner/utils'
-import { toArray } from '@vitest/utils'
 import { relative, resolve } from 'pathe'
 import prompt from 'prompts'
 import c from 'tinyrainbow'
@@ -182,7 +181,7 @@ export function registerConsoleShortcuts(
         name: 'filter',
         type: 'text',
         message: 'Input a single project name',
-        initial: toArray(ctx.configOverride.project)[0] || '',
+        initial: ctx.config.project[0] || '',
       },
     ])
     on()