feat: slow test threshold (#2396)

* feat: slowTestThreshold

* feat: docs

* test: slowTestThreshold

* docs: seconds->milliseconds

Co-authored-by: Vladimir <sleuths.slews0s@icloud.com>
Co-authored-by: Vladimir <sheremet.va@icloud.com>

Author: poyoho

docs/config/index.md

@@ -923,3 +923,10 @@ By default, if Vitest finds source error, it will fail test suite.
 - **Default**: _tries to find closest tsconfig.json_
 
 Path to custom tsconfig, relative to the project root.
+
+### slowTestThreshold
+
+- **Type**: `number`
+- **Default**: `300`
+
+The number of milliseconds after which a test is considered slow and reported as such in the results.

packages/vitest/src/defaults.ts

@@ -92,6 +92,7 @@ const config = {
     include: ['**/*.{test,spec}-d.{ts,js}'],
     exclude: defaultExclude,
   },
+  slowTestThreshold: 300,
 }
 
 export const configDefaults: Required<Pick<UserConfig, keyof typeof config>> = Object.freeze(config)

packages/vitest/src/node/reporters/base.ts

@@ -14,7 +14,6 @@ const HELP_QUITE = `${c.dim('press ')}${c.bold('q')}${c.dim(' to quit')}`
 const WAIT_FOR_CHANGE_PASS = `\n${c.bold(c.inverse(c.green(' PASS ')))}${c.green(' Waiting for file changes...')}`
 const WAIT_FOR_CHANGE_FAIL = `\n${c.bold(c.inverse(c.red(' FAIL ')))}${c.red(' Tests failed. Watching for file changes...')}`
 
-const DURATION_LONG = 300
 const LAST_RUN_LOG_TIMEOUT = 1_500
 
 export abstract class BaseReporter implements Reporter {
@@ -76,7 +75,7 @@ export abstract class BaseReporter implements Reporter {
           state += ` ${c.dim('|')} ${c.yellow(`${skipped.length} skipped`)}`
         let suffix = c.dim(' (') + state + c.dim(')')
         if (task.result.duration) {
-          const color = task.result.duration > DURATION_LONG ? c.yellow : c.gray
+          const color = task.result.duration > this.ctx.config.slowTestThreshold ? c.yellow : c.gray
           suffix += color(` ${Math.round(task.result.duration)}${c.dim('ms')}`)
         }
         if (this.ctx.config.logHeapUsage && task.result.heap != null)

packages/vitest/src/types/config.ts

@@ -457,6 +457,13 @@ export interface InlineConfig {
    * Options for configuring typechecking test environment.
    */
   typecheck?: Partial<TypecheckConfig>
+
+  /**
+   * The number of milliseconds after which a test is considered slow and reported as such in the results.
+   *
+   * @default 300
+  */
+  slowTestThreshold?: number
 }
 
 export interface TypecheckConfig {

test/core/vitest.config.ts

@@ -37,6 +37,7 @@ export default defineConfig({
     ],
   },
   test: {
+    slowTestThreshold: 1000,
     testTimeout: 2000,
     setupFiles: [
       './test/setup.ts',