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runtests.1
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.\" **************************************************************************
.\" * _ _ ____ _
.\" * Project ___| | | | _ \| |
.\" * / __| | | | |_) | |
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
.\" * are also available at https://curl.se/docs/copyright.html.
.\" *
.\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell
.\" * copies of the Software, and permit persons to whom the Software is
.\" * furnished to do so, under the terms of the COPYING file.
.\" *
.\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
.\" * KIND, either express or implied.
.\" *
.\" * SPDX-License-Identifier: curl
.\" *
.\" **************************************************************************
.\"
.TH runtests.pl 1 "06 Jun 2023" runtests runtests
.SH NAME
runtests.pl \- run one or more test cases
.SH SYNOPSIS
.B runtests.pl [options] [tests]
.SH DESCRIPTION
\fIruntests.pl\fP runs one, several or all the existing test cases in curl's
test suite. It is often called from the root Makefile of the curl package with
\&'make test'.
.SH "TESTS"
Specify which test(s) to run by specifying test numbers or keywords.
If no test number or keyword is given, all existing tests that the script can
find will be considered for running. You can specify single test cases to run
by specifying test numbers space-separated, like "1 3 5 7 11", and you can
specify a range of tests like "45 to 67".
Specify tests to not run with a leading exclamation point, like "!66", which
runs all available tests except number 66.
Prefix a test number with a tilde (~) to still run it, but ignore the results.
It is also possible to specify tests based on a keyword describing the test(s)
to run, like "FTPS". The keywords are strings used in the individual tests.
You can also specify keywords with a leading exclamation point and the keyword
or phrase, like "!HTTP NTLM auth" to run all tests \fBexcept\fP those using
this keyword. Remember that the exclamation marks and spaces will need to be
quoted somehow when entered at many command shells.
Prefix a keyword with a tilde (~) to still run it, but ignore the results.
.SH OPTIONS
.IP "-a"
Continue running the rest of the test cases even if one test fails. By
default, the test script stops as soon as an error is detected.
.IP "-ac <curl>"
Provide a path to a curl binary to talk to APIs (currently only CI test APIs).
.IP "-am"
Display test results in automake style output (PASS/FAIL: [number] [name]).
.IP "-c <curl>"
Provide a path to a custom curl binary to run the tests with. Default is the
curl executable in the build tree.
.IP "-d"
Enable protocol debug: have the servers display protocol output. If used in
conjuction with parallel testing, it will be difficult to associate the logs
with the test being run.
.IP "-E <exclude_file>"
Load the \fBexclude_file\fP with additional reasons why certain tests
should be skipped. Useful when testing with external HTTP proxies in
which case some of the tests aren't appropriate.
The file contains colon-delimited lines. The first field contains the
type of exclusion, the second field contains a pattern and the final
field contains the reason why matching tests should be skipped.
The exclusion types are \fkeyword\fP, \ftest\fP, and \ftool\fP.
.IP "-e"
Run the test event-based (if possible). This will make runtests invoke curl
with --test-event option. This option only works if both curl and libcurl were
built debug-enabled.
.IP "-f"
Force the test to run even if mentioned in DISABLED.
.IP "-g"
Run the given test(s) with gdb. This is best used on a single test case and
curl built --disable-shared. This then fires up gdb with command line set to
run the specified test case. Simply (set a break-point and) type 'run' to
start.
.IP "-gw"
Run the given test(s) with gdb as a windowed application.
.IP "-h, --help"
Displays a help text about this program's command line options.
.IP "-k"
Keep output and log files in log/ after a test run, even if no error was
detected. Useful for debugging.
.IP "-j[num]"
Spawn num processes to run tests. This defaults to 0 to run tests serially
within a single process. Using a number greater than one allows multiple tests
to run in parallel, speeding up a test run. The optimum number is dependent on
the system and set of tests to run, but 7*number of CPU cores is a good figure
to start with, or 1.3*number of CPU cores if Valgrind is in use. Enabling
parallel tests is not recommended in conjunction with the \-g option.
.IP "-L <file>"
Load and execute the specified file which should contain perl code.
This option allows one to change \fIruntests.pl\fP behaviour by overwriting
functions and variables and is useful when testing external proxies
using curl's regression test suite.
.IP "-l"
Lists all test case names.
.IP "-n"
Disable the check for and use of valgrind.
.IP "--no-debuginfod"
Delete the DEBUGINFOD_URLS variable if that is defined. Makes valgrind, gdb
etc not able to use this functionality.
.IP "-o <variablename=value>"
Overwrite the specified internal \fBvariable\fP with \fBvalue\fP.
Useful to change variables that didn't get a dedicated flag to change them.
Check the source to see which variables are available.
.IP "-P <proxy>"
Use the specified HTTP proxy when executing tests, even if the tests
themselves don't specify a proxy. This option allows one to test external
proxies using curl's regression test suite.
.IP "-p"
Prints out all files in "log/" to stdout when a test case fails. Very
practical when used in the automated and distributed tests since then the
people checking the failures and the reasons for them might not have physical
access to the machine and logs.
.IP "-R"
Run the tests in a scrambled, or randomized, order instead of sequentially.
The random seed initially set for this is fixed per month and can be set with
\fI--seed\fP.
.IP "-r"
Display run time statistics. (Requires Perl Time::HiRes module)
.IP "-rf"
Display full run time statistics. (Requires Perl Time::HiRes module)
.IP "-rm"
Force removal of files by killing locking processes. (Windows only,
requires Sysinternals handle[64].exe to be on PATH)
.IP "--repeat=[num]"
This will repeat the given set of test numbers this many times. If no test
numbers are given, it will repeat ALL tests this many times. It iteratively
adds the new sequence at the end of the initially given one.
If \fB-R\fP is also used, the scrambling is done after the repeats have
extended the test sequence.
.IP "-s"
Shorter output. Speaks less than default.
.IP "--seed=[num]"
When using \fI--shallow\fP or \fI-R\fP that randomize certain aspects of the
behavior, this option can set the initial seed. If not set, the random seed
will be set based on the currently set local year and month and the first line
of the "curl -V" output.
.IP "--shallow=[num]"
Used together with \fB-t\fP. This limits the number of tests to fail in
torture mode to no more than 'num' per test case. If this reduces the amount,
the script will randomly discard entries to fail until the amount is 'num'.
The random seed initially set for this is fixed per month and can be set with
\fI--seed\fP.
.IP "-t[num]"
Selects a \fBtorture\fP test for the given tests. This makes runtests.pl first
run the tests once and count the number of memory allocations made. It then
reruns the test that number of times, each time forcing one of the allocations
to fail until all allocs have been tested. By setting \fInum\fP you can force
the allocation with that number to be set to fail at once instead of looping
through everyone, which is very handy when debugging and then often in
combination with \fI-g\fP.
.IP "-u"
Error instead of warning on server unexpectedly alive.
.IP "-v"
Enable verbose output. Speaks more than by default. If used in conjuction with
parallel testing, it will be difficult to associate the logs with the test
being run.
.IP "-vc <curl>"
Provide a path to a custom curl binary to run when verifying that the servers
running are indeed our test servers. Default is the curl executable in the
build tree.
.SH "RUNNING TESTS"
Many tests have conditions that must be met before the test case can run
fine. They could depend on built-in features in libcurl or features present in
the operating system or even in third-party libraries that curl may or may not
use.
.P
The test script checks most of these by itself to determine when it is
safe to attempt to run each test. Those which cannot be run due to
failed requirements will simply be skipped and listed at the completion
of all test cases. In some unusual configurations, the test script
cannot make the correct determination for all tests. In these cases,
the problematic tests can be skipped using the "!keyword" skip feature
documented earlier.
.SH "WRITING TESTS"
The simplest way to write test cases is to start with a similar existing test,
save it with a new number and then adjust it to fit. There's an attempt to
document the test case file format in the tests/FILEFORMAT.md.