vitest.dev / vitest
[READ-ONLY] Mirror of https://github.com/vitest-dev/vitest. Next generation testing framework powered by Vite. vitest.dev
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root #

  • CLI: -r, --root <path>
  • Config: root

Root path

config #

  • CLI: -c, --config <path>

Path to config file

update #

  • CLI: -u, --update
  • Config: update

Update snapshot

watch #

  • CLI: -w, --watch
  • Config: watch

Enable watch mode

testNamePattern #

Run tests with full names matching the specified regexp pattern

dir #

  • CLI: --dir <path>
  • Config: dir

Base directory to scan for the test files

ui #

  • CLI: --ui
  • Config: ui

Enable UI

open #

  • CLI: --open
  • Config: open

Open UI automatically (default: !process.env.CI)

api.port #

  • CLI: --api.port [port]

Specify server port. Note if the port is already being used, Vite will automatically try the next available port so this may not be the actual port the server ends up listening on. If true will be set to 51204

api.host #

  • CLI: --api.host [host]

Specify which IP addresses the server should listen on. Set this to 0.0.0.0 or true to listen on all addresses, including LAN and public addresses

api.strictPort #

  • CLI: --api.strictPort

Set to true to exit if port is already in use, instead of automatically trying the next available port

silent #

  • CLI: --silent
  • Config: silent

Silent console output from tests

hideSkippedTests #

  • CLI: --hideSkippedTests

Hide logs for skipped tests

reporters #

Specify reporters

outputFile #

  • CLI: --outputFile <filename/-s>
  • Config: outputFile

Write test results to a file when supporter reporter is also specified, use cac's dot notation for individual outputs of multiple reporters (example: --outputFile.tap=./tap.txt)

coverage.all #

Whether to include all files, including the untested ones into report

coverage.provider #

Select the tool for coverage collection, available values are: "v8", "istanbul" and "custom"

coverage.enabled #

Enables coverage collection. Can be overridden using the --coverage CLI option (default: false)

coverage.include #

Files included in coverage as glob patterns. May be specified more than once when using multiple patterns (default: **)

coverage.exclude #

Files to be excluded in coverage. May be specified more than once when using multiple extensions (default: Visit coverage.exclude)

coverage.extension #

Extension to be included in coverage. May be specified more than once when using multiple extensions (default: [".js", ".cjs", ".mjs", ".ts", ".mts", ".tsx", ".jsx", ".vue", ".svelte"])

coverage.clean #

Clean coverage results before running tests (default: true)

coverage.cleanOnRerun #

Clean coverage report on watch rerun (default: true)

coverage.reportsDirectory #

Directory to write coverage report to (default: ./coverage)

coverage.reporter #

Coverage reporters to use. Visit coverage.reporter for more information (default: ["text", "html", "clover", "json"])

coverage.reportOnFailure #

Generate coverage report even when tests fail (default: false)

coverage.allowExternal #

Collect coverage of files outside the project root (default: false)

coverage.skipFull #

Do not show files with 100% statement, branch, and function coverage (default: false)

coverage.thresholds.100 #

Shortcut to set all coverage thresholds to 100 (default: false)

coverage.thresholds.perFile #

Check thresholds per file. See --coverage.thresholds.lines, --coverage.thresholds.functions, --coverage.thresholds.branches and --coverage.thresholds.statements for the actual thresholds (default: false)

coverage.thresholds.autoUpdate #

Update threshold values: "lines", "functions", "branches" and "statements" to configuration file when current coverage is above the configured thresholds (default: false)

coverage.thresholds.lines #

  • CLI: --coverage.thresholds.lines <number>

Threshold for lines. Visit istanbuljs for more information. This option is not available for custom providers

coverage.thresholds.functions #

  • CLI: --coverage.thresholds.functions <number>

Threshold for functions. Visit istanbuljs for more information. This option is not available for custom providers

coverage.thresholds.branches #

  • CLI: --coverage.thresholds.branches <number>

Threshold for branches. Visit istanbuljs for more information. This option is not available for custom providers

coverage.thresholds.statements #

  • CLI: --coverage.thresholds.statements <number>

Threshold for statements. Visit istanbuljs for more information. This option is not available for custom providers

coverage.ignoreClassMethods #

Array of class method names to ignore for coverage. Visit istanbuljs for more information. This option is only available for the istanbul providers (default: [])

coverage.processingConcurrency #

Concurrency limit used when processing the coverage results. (default min between 20 and the number of CPUs)

coverage.customProviderModule #

Specifies the module name or path for the custom coverage provider module. Visit Custom Coverage Provider for more information. This option is only available for custom providers

coverage.watermarks.statements #

  • CLI: --coverage.watermarks.statements <watermarks>

High and low watermarks for statements in the format of <high>,<low>

coverage.watermarks.lines #

  • CLI: --coverage.watermarks.lines <watermarks>

High and low watermarks for lines in the format of <high>,<low>

coverage.watermarks.branches #

  • CLI: --coverage.watermarks.branches <watermarks>

High and low watermarks for branches in the format of <high>,<low>

coverage.watermarks.functions #

  • CLI: --coverage.watermarks.functions <watermarks>

High and low watermarks for functions in the format of <high>,<low>

mode #

  • CLI: --mode <name>
  • Config: mode

Override Vite mode (default: test or benchmark)

workspace #

Path to a workspace configuration file

isolate #

Run every test file in isolation. To disable isolation, use --no-isolate (default: true)

globals #

Inject apis globally

dom #

  • CLI: --dom

Mock browser API with happy-dom

browser.enabled #

Run tests in the browser. Equivalent to --browser.enabled (default: false)

browser.name #

Run all tests in a specific browser. Some browsers are only available for specific providers (see --browser.provider). Visit browser.name for more information

browser.headless #

Run the browser in headless mode (i.e. without opening the GUI (Graphical User Interface)). If you are running Vitest in CI, it will be enabled by default (default: process.env.CI)

browser.api.port #

Specify server port. Note if the port is already being used, Vite will automatically try the next available port so this may not be the actual port the server ends up listening on. If true will be set to 63315

browser.api.host #

Specify which IP addresses the server should listen on. Set this to 0.0.0.0 or true to listen on all addresses, including LAN and public addresses

browser.api.strictPort #

Set to true to exit if port is already in use, instead of automatically trying the next available port

browser.provider #

Provider used to run browser tests. Some browsers are only available for specific providers. Can be "webdriverio", "playwright", "preview", or the path to a custom provider. Visit browser.provider for more information (default: "preview")

browser.providerOptions #

Options that are passed down to a browser provider. Visit browser.providerOptions for more information

browser.isolate #

Run every browser test file in isolation. To disable isolation, use --browser.isolate=false (default: true)

browser.ui #

Show Vitest UI when running tests (default: !process.env.CI)

browser.fileParallelism #

Should browser test files run in parallel. Use --browser.fileParallelism=false to disable (default: true)

pool #

  • CLI: --pool <pool>
  • Config: pool

Specify pool, if not running in the browser (default: threads)

poolOptions.threads.isolate #

Isolate tests in threads pool (default: true)

poolOptions.threads.singleThread #

Run tests inside a single thread (default: false)

poolOptions.threads.maxThreads #

Maximum number or percentage of threads to run tests in

poolOptions.threads.minThreads #

Minimum number or percentage of threads to run tests in

poolOptions.threads.useAtomics #

Use Atomics to synchronize threads. This can improve performance in some cases, but might cause segfault in older Node versions (default: false)

poolOptions.vmThreads.isolate #

Isolate tests in threads pool (default: true)

poolOptions.vmThreads.singleThread #

Run tests inside a single thread (default: false)

poolOptions.vmThreads.maxThreads #

Maximum number or percentage of threads to run tests in

poolOptions.vmThreads.minThreads #

Minimum number or percentage of threads to run tests in

poolOptions.vmThreads.useAtomics #

Use Atomics to synchronize threads. This can improve performance in some cases, but might cause segfault in older Node versions (default: false)

poolOptions.vmThreads.memoryLimit #

Memory limit for VM threads pool. If you see memory leaks, try to tinker this value.

poolOptions.forks.isolate #

Isolate tests in forks pool (default: true)

poolOptions.forks.singleFork #

Run tests inside a single child_process (default: false)

poolOptions.forks.maxForks #

Maximum number or percentage of processes to run tests in

poolOptions.forks.minForks #

Minimum number or percentage of processes to run tests in

poolOptions.vmForks.isolate #

Isolate tests in forks pool (default: true)

poolOptions.vmForks.singleFork #

Run tests inside a single child_process (default: false)

poolOptions.vmForks.maxForks #

Maximum number or percentage of processes to run tests in

poolOptions.vmForks.minForks #

Minimum number or percentage of processes to run tests in

poolOptions.vmForks.memoryLimit #

Memory limit for VM forks pool. If you see memory leaks, try to tinker this value.

fileParallelism #

Should all test files run in parallel. Use --no-file-parallelism to disable (default: true)

maxWorkers #

Maximum number or percentage of workers to run tests in

minWorkers #

Minimum number or percentage of workers to run tests in

environment #

Specify runner environment, if not running in the browser (default: node)

passWithNoTests #

Pass when no tests are found

logHeapUsage #

Show the size of heap for each test when running in node

allowOnly #

Allow tests and suites that are marked as only (default: !process.env.CI)

dangerouslyIgnoreUnhandledErrors #

Ignore any unhandled errors that occur

sequence.shuffle.files #

Run files in a random order. Long running tests will not start earlier if you enable this option. (default: false)

sequence.shuffle.tests #

Run tests in a random order (default: false)

sequence.concurrent #

Make tests run in parallel (default: false)

sequence.seed #

Set the randomization seed. This option will have no effect if --sequence.shuffle is falsy. Visit "Random Seed" page for more information

sequence.hooks #

Changes the order in which hooks are executed. Accepted values are: "stack", "list" and "parallel". Visit sequence.hooks for more information (default: "parallel")

sequence.setupFiles #

Changes the order in which setup files are executed. Accepted values are: "list" and "parallel". If set to "list", will run setup files in the order they are defined. If set to "parallel", will run setup files in parallel (default: "parallel")

inspect #

  • CLI: --inspect [[host:]port]
  • Config: inspect

Enable Node.js inspector (default: 127.0.0.1:9229)

inspectBrk #

  • CLI: --inspectBrk [[host:]port]
  • Config: inspectBrk

Enable Node.js inspector and break before the test starts

testTimeout #

Default timeout of a test in milliseconds (default: 5000)

hookTimeout #

Default hook timeout in milliseconds (default: 10000)

bail #

  • CLI: --bail <number>
  • Config: bail

Stop test execution when given number of tests have failed (default: 0)

retry #

  • CLI: --retry <times>
  • Config: retry

Retry the test specific number of times if it fails (default: 0)

diff #

  • CLI: --diff <path>
  • Config: diff

Path to a diff config that will be used to generate diff interface

exclude #

  • CLI: --exclude <glob>
  • Config: exclude

Additional file globs to be excluded from test

expandSnapshotDiff #

Show full diff when snapshot fails

disableConsoleIntercept #

Disable automatic interception of console logging (default: false)

typecheck.enabled #

Enable typechecking alongside tests (default: false)

typecheck.only #

Run only typecheck tests. This automatically enables typecheck (default: false)

typecheck.checker #

Specify the typechecker to use. Available values are: "tsc" and "vue-tsc" and a path to an executable (default: "tsc")

typecheck.allowJs #

Allow JavaScript files to be typechecked. By default takes the value from tsconfig.json

typecheck.ignoreSourceErrors #

Ignore type errors from source files

typecheck.tsconfig #

Path to a custom tsconfig file

project #

  • CLI: --project <name>
  • Config: project

The name of the project to run if you are using Vitest workspace feature. This can be repeated for multiple projects: --project=1 --project=2. You can also filter projects using wildcards like --project=packages*

slowTestThreshold #

Threshold in milliseconds for a test to be considered slow (default: 300)

teardownTimeout #

Default timeout of a teardown function in milliseconds (default: 10000)

maxConcurrency #

Maximum number of concurrent tests in a suite (default: 5)

expect.requireAssertions #

Require that all tests have at least one assertion

expect.poll.interval #

Poll interval in milliseconds for expect.poll() assertions (default: 50)

expect.poll.timeout #

Poll timeout in milliseconds for expect.poll() assertions (default: 1000)

printConsoleTrace #

Always print console stack traces

run #

  • CLI: --run

Disable watch mode

color #

  • CLI: --no-color

Removes colors from the console output

clearScreen #

  • CLI: --clearScreen

Clear terminal screen when re-running tests during watch mode (default: true)

standalone #

  • CLI: --standalone

Start Vitest without running tests. File filters will be ignored, tests will be running only on change (default: false)