TestSuite

The TestSuite class represents a single suite. This class is only available in the main thread. Refer to the "Runner API" if you are working with runtime tasks.

The TestSuite instance always has a type property with the value of suite. You can use it to distinguish between different task types:

if (task.type === 'suite') {
  task // TestSuite
}

WARNING

We are planning to introduce a new Reporter API that will be using this API by default. For now, the Reporter API uses runner tasks, but you can still access TestSuite via vitest.state.getReportedEntity method:

import type { RunnerTestFile, TestModule, Vitest } from 'vitest/node'

class Reporter {
  private vitest!: Vitest

  onInit(vitest: Vitest) {
    this.vitest = vitest
  }

  onFinished(files: RunnerTestFile[]) {
    for (const file of files) {
      const testModule = this.vitest.state.getReportedEntity(file) as TestModule
      for (const suite of testModule.children.allSuites()) {
        console.log(suite) // TestSuite
      }
    }
  }
}

project

This references the TestProject that the test belongs to.

module

This is a direct reference to the TestModule where the test is defined.

name

This is a suite name that was passed to the describe function.

import { describe } from 'vitest'

describe('the validation logic', () => {
  // ...
})

fullName

The name of the suite including all parent suites separated with > symbol. This suite has a full name "the validation logic > validating cities":

import { describe, test } from 'vitest'

describe('the validation logic', () => {
  describe('validating cities', () => {
    // ...
  })
})

id

This is suite's unique identifier. This ID is deterministic and will be the same for the same suite across multiple runs. The ID is based on the project name, module ID and suite order.

The ID looks like this:

1223128da3_0_0_0
^^^^^^^^^^ the file hash
           ^ suite index
             ^ nested suite index
               ^ test index

TIP

You can generate file hash with generateFileHash function from vitest/node which is available since Vitest 3:

import { generateFileHash } from 'vitest/node'

const hash = generateFileHash(
  '/file/path.js', // relative path
  undefined, // the project name or `undefined` is not set
)

DANGER

Don't try to parse the ID. It can have a minus at the start: -1223128da3_0_0_0.

location

The location in the module where the suite was defined. Locations are collected only if includeTaskLocation is enabled in the config. Note that this option is automatically enabled if --reporter=html, --ui or --browser flags are used.

The location of this suite will be equal to { line: 3, column: 1 }:

import { describe } from 'vitest'

describe('the validation works correctly', () => {
  // ...
})

parent

Parent suite. If the suite was called directly inside the module, the parent will be the module itself.

options

interface TaskOptions {
  each: boolean | undefined
  concurrent: boolean | undefined
  shuffle: boolean | undefined
  retry: number | undefined
  repeats: number | undefined
  mode: 'run' | 'only' | 'skip' | 'todo'
}

The options that suite was collected with.

children

This is a collection of all suites and tests inside the current suite.

for (const task of suite.children) {
  if (task.type === 'test') {
    console.log('test', task.fullName)
  }
  else {
    // task is TaskSuite
    console.log('suite', task.name)
  }
}

WARNING

Note that suite.children will only iterate the first level of nesting, it won't go deeper.

ok

function ok(): boolean

Checks if the suite has any failed tests. This will also return false if suite failed during collection. In that case, check the errors() for thrown errors.

skipped

function skipped(): boolean

Checks if the suite was skipped during collection.

errors

function errors(): TestError[]

Errors that happened outside of the test run during collection, like syntax errors.

import { describe } from 'vitest'

describe('collection failed', () => {
  throw new Error('a custom error')
})

WARNING

Note that errors are serialized into simple object: instanceof Error will always return false.