f6926d5d00
PR-URL: https://github.com/nodejs/node/pull/17211 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Alexey Orlenko <eaglexrlnk@gmail.com> Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com> |
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.. | ||
benchmark.js | ||
countdown.js | ||
dns.js | ||
duplexpair.js | ||
fixtures.js | ||
index.js | ||
index.mjs | ||
inspector-helper.js | ||
internet.js | ||
README.md | ||
wpt.js |
Node.js Core Test Common Modules
This directory contains modules used to test the Node.js implementation.
Table of Contents
- Benchmark module
- Common module API
- Countdown module
- DNS module
- Duplex pair helper
- Fixtures module
- Internet module
- WPT module
Benchmark Module
The benchmark
module is used by tests to run benchmarks.
runBenchmark(name, args, env)
name
<String> Name of benchmark suite to be run.args
<Array> Array of environment variable key/value pairs (ex:n=1
) to be applied via--set
.env
<Object> Environment variables to be applied during the run.
Common Module API
The common
module is used by tests for consistency across repeated
tasks.
allowGlobals(...whitelist)
Takes whitelist
and concats that with predefined knownGlobals
.
arrayStream
A stream to push an array into a REPL
busyLoop(time)
time
<Number>
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). 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>
Platform normalizes the dd
command
enoughTestMem
- return <Boolean>
Check if there is more than 1gb of total memory.
expectsError([fn, ]settings[, exact])
-
fn
<Function> a function that should throw. -
settings
<Object> that must contain thecode
property plus any of the other following properties (some properties only apply forAssertionError
):code
<String> expected error must have this value for itscode
property.type
<Function> expected error must be an instance oftype
and must be an Error subclass.message
<String> or <RegExp> if a string is provided formessage
, expected error must have it for itsmessage
property; if a regular expression is provided formessage
, the regular expression must match themessage
property of the expected error.name
<String> expected error must have this value for itsname
property.generatedMessage
<String> (AssertionError
only) expected error must have this value for itsgeneratedMessage
property.actual
<any> (AssertionError
only) expected error must have this value for itsactual
property.expected
<any> (AssertionError
only) expected error must have this value for itsexpected
property.operator
<any> (AssertionError
only) expected error must have this value for itsoperator
property.
-
exact
<Number> default = 1 -
return <Function>
If
fn
is provided, it will be passed toassert.throws
as first argument andundefined
will be returned. Otherwise a function suitable as callback or for use as a validation function passed as the second argument toassert.throws()
will be returned. If the returned function has not been called exactlyexact
number of times when the test is complete, then the test will fail.
expectWarning(name, expected)
Tests whether name
and expected
are part of a raised warning.
fileExists(pathname)
Checks if pathname
exists
fires(promise, [error], [timeoutMs])
- promise [<Promise]
- error [<String] default = 'timeout'
- timeoutMs [<Number] default = 100
Returns a new promise that will propagate promise
resolution or rejection if
that happens within the timeoutMs
timespan, or rejects with error
as
a reason otherwise.
fixturesDir
- return <String>
Path to the 'fixtures' directory.
getArrayBufferViews(buf)
buf
<Buffer>- return <ArrayBufferView[]>
Returns an instance of all possible ArrayBufferView
s of the provided Buffer.
globalCheck
- return <Boolean>
Turn this off if the test should not check for global leaks.
hasCrypto
- return <Boolean>
Checks for 'openssl'.
hasFipsCrypto
- return <Boolean>
Checks hasCrypto
and crypto
with fips.
hasIntl
- return <Boolean>
Checks if internationalization is supported.
hasSmallICU
- return <Boolean>
Checks hasIntl
and small-icu
is supported.
hasIPv6
- return <Boolean>
Checks whether IPv6
is supported on this platform.
hasMultiLocalhost
- return <Boolean>
Checks if there are multiple localhosts available.
hijackStderr(listener)
listener
<Function>: a listener with a single parameter calleddata
.
Eavesdrop to process.stderr.write
calls. Once process.stderr.write
is
called, listener
will also be called and the data
of write
function will
be passed to listener
. What's more, process.stderr.writeTimes
is a count of
the number of calls.
hijackStdout(listener)
listener
<Function>: a listener with a single parameter calleddata
.
Eavesdrop to process.stdout.write
calls. Once process.stdout.write
is
called, listener
will also be called and the data
of write
function will
be passed to listener
. What's more, process.stdout.writeTimes
is a count of
the number of calls.
inFreeBSDJail
- return <Boolean>
Checks whether free BSD Jail is true or false.
isAIX
- return <Boolean>
Platform check for Advanced Interactive eXecutive (AIX).
isAlive(pid)
Attempts to 'kill' pid
isFreeBSD
- return <Boolean>
Platform check for Free BSD.
isLinux
- return <Boolean>
Platform check for Linux.
isLinuxPPCBE
- return <Boolean>
Platform check for Linux on PowerPC.
isOSX
- return <Boolean>
Platform check for macOS.
isSunOS
- return <Boolean>
Platform check for SunOS.
isWindows
- return <Boolean>
Platform check for Windows.
isWOW64
- return <Boolean>
Platform check for Windows 32-bit on Windows 64-bit.
leakedGlobals
- return <Array>
Checks whether any globals are not on the knownGlobals
list.
localhostIPv4
- return <String>
Gets IP of localhost
localIPv6Hosts
- return <Array>
Array of IPV6 hosts.
mustCall([fn][, exact])
fn
<Function> default = () => {}exact
<Number> default = 1- return <Function>
Returns a function that calls fn
. If the returned function has not been called
exactly exact
number of times when the test is complete, then the test will
fail.
If fn
is not provided, an empty function will be used.
mustCallAtLeast([fn][, minimum])
fn
<Function> default = () => {}minimum
<Number> default = 1- return <Function>
Returns a function that calls fn
. If the returned function has not been called
at least minimum
number of times when the test is complete, then the test will
fail.
If fn
is not provided, an empty function will be used.
mustNotCall([msg])
msg
<String> default = 'function should not have been called'- return <Function>
Returns a function that triggers an AssertionError
if it is invoked. msg
is
used as the error message for the AssertionError
.
nodeProcessAborted(exitCode, signal)
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.
opensslCli
- return <Boolean>
Checks whether 'opensslCli' is supported.
platformTimeout(ms)
Platform normalizes timeout.
PIPE
- return <String>
Path to the test sock.
PORT
- return <Number> default =
12346
Port tests are running on.
printSkipMessage(msg)
msg
<String>
Logs '1..0 # Skipped: ' + msg
refreshTmpDir()
- return <String>
Deletes the testing 'tmp' directory and recreates it.
restoreStderr()
Restore the original process.stderr.write
. Used to restore stderr
to its
original state after calling common.hijackStdErr()
.
restoreStdout()
Restore the original process.stdout.write
. Used to restore stdout
to its
original state after calling common.hijackStdOut()
.
rootDir
- return <String>
Path to the 'root' directory. either /
or c:\\
(windows)
projectDir
- return <String>
Path to the project directory.
skip(msg)
msg
<String>
Logs '1..0 # Skipped: ' + msg
and exits with exit code 0
.
skipIfInspectorDisabled()
Skip the rest of the tests in the current file when the Inspector was disabled at compile time.
skipIf32Bits()
Skip the rest of the tests in the current file when the Node.js executable was compiled with a pointer size smaller than 64 bits.
spawnPwd(options)
Platform normalizes the pwd
command.
spawnSyncPwd(options)
Synchronous version of spawnPwd
.
tmpDir
- return <String>
The realpath of the 'tmp' directory.
Countdown Module
The Countdown
module provides a simple countdown mechanism for tests that
require a particular action to be taken after a given number of completed
tasks (for instance, shutting down an HTTP server after a specific number of
requests).
const Countdown = require('../common/countdown');
function doSomething() {
console.log('.');
}
const countdown = new Countdown(2, doSomething);
countdown.dec();
countdown.dec();
new Countdown(limit, callback)
limit
{number}callback
{function}
Creates a new Countdown
instance.
Countdown.prototype.dec()
Decrements the Countdown
counter.
Countdown.prototype.remaining
Specifies the remaining number of times Countdown.prototype.dec()
must be
called before the callback is invoked.
DNS Module
The DNS
module provides utilities related to the dns
built-in module.
errorLookupMock(code, syscall)
code
<String> Defaults todns.mockedErrorCode
.syscall
<String> Defaults todns.mockedSysCall
.- return <Function>
A mock for the lookup
option of net.connect()
that would result in an error
with the code
and the syscall
specified. Returns a function that has the
same signature as dns.lookup()
.
mockedErrorCode
The default code
of errors generated by errorLookupMock
.
mockedSysCall
The default syscall
of errors generated by errorLookupMock
.
readDomainFromPacket(buffer, offset)
Reads the domain string from a packet and returns an object containing the number of bytes read and the domain.
parseDNSPacket(buffer)
Parses a DNS packet. Returns an object with the values of the various flags of the packet depending on the type of packet.
writeIPv6(ip)
Reads an IPv6 String and returns a Buffer containing the parts.
writeDomainName(domain)
Reads a Domain String and returns a Buffer containing the domain.
writeDNSPacket(parsed)
Takes in a parsed Object and writes its fields to a DNS packet as a Buffer object.
Duplex pair helper
The common/duplexpair
module exports a single function makeDuplexPair
,
which returns an object { clientSide, serverSide }
where each side is a
Duplex
stream connected to the other side.
There is no difference between client or server side beyond their names.
Fixtures Module
The common/fixtures
module provides convenience methods for working with
files in the test/fixtures
directory.
fixtures.fixturesDir
The absolute path to the test/fixtures/
directory.
fixtures.path(...args)
...args
<String>
Returns the result of path.join(fixtures.fixturesDir, ...args)
.
fixtures.readSync(args[, enc])
Returns the result of
fs.readFileSync(path.join(fixtures.fixturesDir, ...args), 'enc')
.
fixtures.readKey(arg[, enc])
arg
<String>
Returns the result of
fs.readFileSync(path.join(fixtures.fixturesDir, 'keys', arg), 'enc')
.
Internet Module
The common/internet
module provides utilities for working with
internet-related tests.
internet.addresses
- <Object>
INET_HOST
<String> A generic host that has registered common DNS records, supports both IPv4 and IPv6, and provides basic HTTP/HTTPS servicesINET4_HOST
<String> A host that provides IPv4 servicesINET6_HOST
<String> A host that provides IPv6 servicesINET4_IP
<String> An accessible IPv4 IP, defaults to the Google Public DNS IPv4 addressINET6_IP
<String> An accessible IPv6 IP, defaults to the Google Public DNS IPv6 addressINVALID_HOST
<String> An invalid host that cannot be resolvedMX_HOST
<String> A host with MX records registeredSRV_HOST
<String> A host with SRV records registeredPTR_HOST
<String> A host with PTR records registeredNAPTR_HOST
<String> A host with NAPTR records registeredSOA_HOST
<String> A host with SOA records registeredCNAME_HOST
<String> A host with CNAME records registeredNS_HOST
<String> A host with NS records registeredTXT_HOST
<String> A host with TXT records registeredDNS4_SERVER
<String> An accessible IPv4 DNS serverDNS6_SERVER
<String> An accessible IPv6 DNS server
A set of addresses for internet-related tests. All properties are configurable
via NODE_TEST_*
environment variables. For example, to configure
internet.addresses.INET_HOST
, set the environment
vairable NODE_TEST_INET_HOST
to a specified host.
WPT Module
The wpt.js module is a port of parts of W3C testharness.js for testing the Node.js WHATWG URL API implementation with tests from W3C Web Platform Tests.