Externalize means that Vite will bypass the package to the native Node. Externalized dependencies will not be applied to Vite's transformers and resolvers, so they do not support HMR on reload. By default, all packages inside node_modules are externalized.
These options support package names as they are written in node_modules or specified inside deps.moduleDirectories. For example, package @company/some-name located inside packages/some-name should be specified as some-name, and packages should be included in deps.moduleDirectories. Basically, Vitest always checks the file path, not the actual package name.
Download And Save Prisma Access Configuration Snapshot
Download Zip 🔥 https://shurll.com/2yGauQ 🔥
Be aware that only packages in deps.optimizer?.[mode].include option are bundled (some plugins populate this automatically, like Svelte). You can read more about available options in Vite docs (Vitest doesn't support disable and noDiscovery options). By default, Vitest uses optimizer.web for jsdom and happy-dom environments, and optimizer.ssr for node and edge environments, but it is configurable by transformMode.
This options also inherits your optimizeDeps configuration (for web Vitest will extend optimizeDeps, for ssr - ssr.optimizeDeps). If you redefine include/exclude option in deps.optimizer it will extend your optimizeDeps when running tests. Vitest automatically removes the same options from include, if they are listed in exclude.
You will not be able to edit your node_modules code for debugging, since the code is actually located in your cacheDir or test.cache.dir directory. If you want to debug with console.log statements, edit it directly or force rebundling with deps.optimizer?.[mode].force option.
Options that are applied to external files when transform mode is set to web. By default, jsdom and happy-dom use web mode, while node and edge environments use ssr transform mode, so these options will have no affect on files inside those environments.
Interpret CJS module's default as named exports. Some dependencies only bundle CJS modules and don't use named exports that Node.js can statically analyze when a package is imported using import syntax instead of require. When importing such dependencies in Node environment using named exports, you will see this error:
A list of directories that should be treated as module directories. This config option affects the behavior of vi.mock: when no factory is provided and the path of what you are mocking matches one of the moduleDirectories values, Vitest will try to resolve the mock by looking for a __mocks__ folder in the root of the project.
This option will also affect if a file should be treated as a module when externalizing dependencies. By default, Vitest imports external modules with native Node.js bypassing Vite transformation step.
The environment that will be used for testing. The default environment in Vitest is a Node.js environment. If you are building a web application, you can use browser-like environment through either jsdom or happy-dom instead. If you are building edge functions, you can use edge-runtime environment
If you are running Vitest with --isolate=false flag, your tests will be run in this order: node, jsdom, happy-dom, edge-runtime, custom environments. Meaning, that every test with the same environment is grouped, but is still running sequentially.
Starting from 0.23.0, you can also define custom environment. When non-builtin environment is used, Vitest will try to load package vitest-environment-${name}. That package should export an object with the shape of Environment:
Since Vitest 1.3.0 jsdom environment exposes jsdom global variable equal to the current JSDOM instance. If you want TypeScript to recognize it, you can add vitest/jsdom to your tsconfig.json when you use this environment:
Write test results to a file when the --reporter=json, --reporter=html or --reporter=junit option is also specified. By providing an object instead of a string you can define individual outputs when using multiple reporters.
Enable multi-threading using tinypool (a lightweight fork of Piscina). When using threads you are unable to use process related APIs such as process.chdir(). Some libraries written in native languages, such as Prisma, bcrypt and canvas, have problems when running in multiple threads and run into segfaults. In these cases it is advised to use forks pool instead.
Similar as threads pool but uses child_process instead of worker_threads via tinypool. Communication between tests and main process is not as fast as with threads pool. Process related APIs such as process.chdir() are available in forks pool.
Similar as vmThreads pool but uses child_process instead of worker_threads via tinypool. Communication between tests and the main process is not as fast as with vmThreads pool. Process related APIs such as process.chdir() are available in vmForks pool. Please be aware that this pool has the same pitfalls listed in vmThreads.
Run all tests with the same environment inside a single worker thread. This will disable built-in module isolation (your source code or inlined code will still be reevaluated for each test), but can improve test performance.
Even though this option will force tests to run one after another, this option is different from Jest's --runInBand. Vitest uses workers not only for running tests in parallel, but also to provide isolation. By disabling this option, your tests will run sequentially, but in the same global context, so you must provide isolation yourself.
This might cause all sorts of issues, if you are relying on global state (frontend frameworks usually do) or your code relies on environment to be defined separately for each test. But can be a speed boost for your tests (up to 3 times faster), that don't necessarily rely on global state or can easily bypass that.
Run all tests with the same environment inside a single child process. This will disable built-in module isolation (your source code or inlined code will still be reevaluated for each test), but can improve test performance.
Even though this option will force tests to run one after another, this option is different from Jest's --runInBand. Vitest uses child processes not only for running tests in parallel, but also to provide isolation. By disabling this option, your tests will run sequentially, but in the same global context, so you must provide isolation yourself.
Specifies the memory limit for workers before they are recycled. This value heavily depends on your environment, so it's better to specify it manually instead of relying on the default. How the value is calculated is described in poolOptions.vmThreads.memoryLimit
Note, that if you are running --isolate=false, this setup file will be run in the same global scope multiple times. Meaning, that you are accessing the same global object before each test, so make sure you are not doing the same thing more than you need.
Since Vitest 1.0.0-beta, global setup runs only if there is at least one running test. This means that global setup might start running during watch mode after test file is changed (the test file will wait for global setup to finish before running).
Beware that the global setup is running in a different global scope, so your tests don't have access to variables defined here. However, since 1.0.0 you can pass down serializable data to tests via provide method:
Update all threshold values lines, functions, branches and statements to configuration file when current coverage is above the configured thresholds. This option helps to maintain thresholds when coverage is improved.
This option works only if the used compiler removes comments and other non-runtime code from the transpiled code. By default Vite uses ESBuild which removes comments and Typescript types from .ts, .tsx and .jsx files.
This makes it impossible to use interactive APIs (like clicking or hovering) because there are several iframes on the screen at the same time, but if your tests don't rely on those APIs, it might be much faster to just run all of them at the same time.
Path to a provider that will be used when running browser tests. Vitest provides two providers which are webdriverio (default) and playwright. Custom providers should be exported using default export and have this shape:
When running tests in Node.js Vitest can use its own module resolution to easily mock modules with vi.mock syntax. However it's not so easy to replicate ES module resolution in browser, so we need to transform your source files before browser can consume it.
Custom scripts that should be injected into the tester HTML before the tests environment is initiated. This is useful to inject polyfills required for Vitest browser implementation. It is recommended to use setupFiles in almost all cases instead of this.
Determine the transform method for all modules imported inside a test that matches the glob pattern. By default, relies on the environment. For example, tests with JSDOM environment will process all files with ssr: false flag and tests with Node environment process all modules with ssr: true.
Vitest usually uses cache to sort tests, so long running tests start earlier - this makes tests run faster. If your files and tests will run in random order you will lose this performance improvement, but it may be useful to track tests that accidentally depend on another run previously.
Sets length threshold for actual and expected values in assertion errors. If this threshold is exceeded, for example for large data structures, the value is replaced with something like [ Array(3) ] or { Object (prop1, prop2) }. Set it to 0 if you want to disable truncating altogether.
By default Vitest will run all of your test cases even if some of them fail. This may not be desired for CI builds where you are only interested in 100% successful builds and would like to stop test execution as early as possible when test failures occur. The bail option can be used to speed up CI runs by preventing it from running more tests when failures have occurred. 152ee80cbc
to download score card of cet- 2022
killer ants movie 2009 download