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test: move WPT to its own testing module This is first in a hoped-for series of moves away from a monolithic common.js that is loaded for every test and towards a more modular approach. (In the end, common.js will hopefully contain checks for variables leaking into the global space and perhaps some of the more ubiquitous functions like common.mustCall().) Move the WPT testing code to its own module. PR-URL: https://github.com/nodejs/node/pull/12736 Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Richard Lau <riclau@uk.ibm.com>
8 years ago
# Node.js Core Test Common Modules
This directory contains modules used to test the Node.js implementation.
## Table of Contents
* [Common module API](#common-module-api)
* [WPT module](#wpt-module)
## Common Module API
The `common` module is used by tests for consistency across repeated
tasks.
### allowGlobals(...whitelist)
* `whitelist` [<Array>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array) Array of Globals
* return [<Array>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)
Takes `whitelist` and concats that with predefined `knownGlobals`.
### arrayStream
A stream to push an array into a REPL
### busyLoop(time)
* `time` [<Number>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type)
Blocks for `time` amount of time.
### canCreateSymLink
API to indicate whether the current running process can create
symlinks. On Windows, this returns false if the process running
doesn't have privileges to create symlinks (specifically
[SeCreateSymbolicLinkPrivilege](https://msdn.microsoft.com/en-us/library/windows/desktop/bb530716(v=vs.85).aspx)).
On non-Windows platforms, this currently returns true.
### crashOnUnhandledRejection()
Installs a `process.on('unhandledRejection')` handler that crashes the process
after a tick. This is useful for tests that use Promises and need to make sure
no unexpected rejections occur, because currently they result in silent
failures.
### ddCommand(filename, kilobytes)
* return [<Object>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)
Platform normalizes the `dd` command
### enoughTestMem
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Check if there is more than 1gb of total memory.
### expectsError(settings)
* `settings` [<Object>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)
with the following optional properties:
* `code` [<String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
expected error must have this value for its `code` property
* `type` [<Function>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function)
expected error must be an instance of `type`
* `message` [<String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
or [<RegExp>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
if a string is provided for `message`, expected error must have it for its
`message` property; if a regular expression is provided for `message`, the
regular expression must match the `message` property of the expected error
* return function suitable for use as a validation function passed as the second
argument to `assert.throws()`
The expected error should be [subclassed by the `internal/errors` module](https://github.com/nodejs/node/blob/master/doc/guides/using-internal-errors.md#api).
### expectWarning(name, expected)
* `name` [<String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
* `expected` [<String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) | [<Array>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)
Tests whether `name` and `expected` are part of a raised warning.
### fileExists(pathname)
* pathname [<String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Checks if `pathname` exists
### fixturesDir
* return [<String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
Path to the 'fixtures' directory.
### getArrayBufferViews(buf)
* `buf` [<Buffer>](https://nodejs.org/api/buffer.html#buffer_class_buffer)
* return [<ArrayBufferView[]>](https://developer.mozilla.org/en-US/docs/Web/API/ArrayBufferView)
Returns an instance of all possible `ArrayBufferView`s of the provided Buffer.
### globalCheck
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Turn this off if the test should not check for global leaks.
### hasCrypto
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Checks for 'openssl'.
### hasFipsCrypto
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Checks `hasCrypto` and `crypto` with fips.
### hasIPv6
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Checks whether `IPv6` is supported on this platform.
### hasMultiLocalhost
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Checks if there are multiple localhosts available.
### inFreeBSDJail
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Checks whether free BSD Jail is true or false.
### isAix
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Platform check for Advanced Interactive eXecutive (AIX).
### isAlive(pid)
* `pid` [<Number>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type)
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Attempts to 'kill' `pid`
### isFreeBSD
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Platform check for Free BSD.
### isLinux
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Platform check for Linux.
### isLinuxPPCBE
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Platform check for Linux on PowerPC.
### isOSX
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Platform check for macOS.
### isSunOS
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Platform check for SunOS.
### isWindows
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Platform check for Windows.
### isWOW64
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Platform check for Windows 32-bit on Windows 64-bit.
### leakedGlobals
* return [<Array>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)
Checks whether any globals are not on the `knownGlobals` list.
### localhostIPv4
* return [<String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
Gets IP of localhost
### localIPv6Hosts
* return [<Array>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array)
Array of IPV6 hosts.
### mustCall([fn][, expected])
* fn [<Function>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function)
* expected [<Number>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) default = 1
* return [<Function>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function)
Returns a function that calls `fn`. If the returned function has not been called
exactly `expected` number of times when the test is complete, then the test will
fail.
If `fn` is not provided, `common.noop` will be used.
### nodeProcessAborted(exitCode, signal)
* `exitCode` [<Number>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type)
* `signal` [<String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
* return [<Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Returns `true` if the exit code `exitCode` and/or signal name `signal` represent the exit code and/or signal name of a node process that aborted, `false` otherwise.
### noop
A non-op `Function` that can be used for a variety of scenarios.
For instance,
<!-- eslint-disable strict, no-undef -->
```js
const common = require('../common');
someAsyncAPI('foo', common.mustCall(common.noop));
```
### opensslCli
* return [&lt;Boolean>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type)
Checks whether 'opensslCli' is supported.
### platformTimeout(ms)
* `ms` [&lt;Number>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type)
* return [&lt;Number>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type)
Platform normalizes timeout.
### PIPE
* return [&lt;String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
Path to the test sock.
### PORT
* return [&lt;Number>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) default = `12346`
Port tests are running on.
### refreshTmpDir
* return [&lt;String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
Deletes the 'tmp' dir and recreates it
### rootDir
* return [&lt;String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
Path to the 'root' directory. either `/` or `c:\\` (windows)
### skip(msg)
* `msg` [&lt;String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
Logs '1..0 # Skipped: ' + `msg`
### spawnPwd(options)
* `options` [&lt;Object>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)
* return [&lt;Object>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)
Platform normalizes the `pwd` command.
### spawnSyncPwd(options)
* `options` [&lt;Object>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)
* return [&lt;Object>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)
Synchronous version of `spawnPwd`.
### tmpDir
* return [&lt;String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
The realpath of the 'tmp' directory.
### tmpDirName
* return [&lt;String>](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type)
Name of the temp directory used by tests.
## WPT Module
The wpt.js module is a port of parts of
[W3C testharness.js](https://github.com/w3c/testharness.js) for testing the
Node.js
[WHATWG URL API](https://nodejs.org/api/url.html#url_the_whatwg_url_api)
implementation with tests from
[W3C Web Platform Tests](https://github.com/w3c/web-platform-tests).