prove - Run tests through a TAP harness.
- prove [options] [files or directories]
Boolean options:
- -v, --verbose Print all test lines.
- -l, --lib Add 'lib' to the path for your tests (-Ilib).
- -b, --blib Add 'blib/lib' and 'blib/arch' to the path for
- your tests
- -s, --shuffle Run the tests in random order.
- -c, --color Colored test output (default).
- --nocolor Do not color test output.
- --count Show the X/Y test count when not verbose
- (default)
- --nocount Disable the X/Y test count.
- -D --dry Dry run. Show test that would have run.
- -f, --failures Show failed tests.
- -o, --comments Show comments.
- --ignore-exit Ignore exit status from test scripts.
- -m, --merge Merge test scripts' STDERR with their STDOUT.
- -r, --recurse Recursively descend into directories.
- --reverse Run the tests in reverse order.
- -q, --quiet Suppress some test output while running tests.
- -Q, --QUIET Only print summary results.
- -p, --parse Show full list of TAP parse errors, if any.
- --directives Only show results with TODO or SKIP directives.
- --timer Print elapsed time after each test.
- --trap Trap Ctrl-C and print summary on interrupt.
- --normalize Normalize TAP output in verbose output
- -T Enable tainting checks.
- -t Enable tainting warnings.
- -W Enable fatal warnings.
- -w Enable warnings.
- -h, --help Display this help
- -?, Display this help
- -H, --man Longer manpage for prove
- --norc Don't process default .proverc
Options that take arguments:
- -I Library paths to include.
- -P Load plugin (searches App::Prove::Plugin::*.)
- -M Load a module.
- -e, --exec Interpreter to run the tests ('' for compiled
- tests.)
- --ext Set the extension for tests (default '.t')
- --harness Define test harness to use. See TAP::Harness.
- --formatter Result formatter to use. See FORMATTERS.
- --source Load and/or configure a SourceHandler. See
- SOURCE HANDLERS.
- -a, --archive out.tgz Store the resulting TAP in an archive file.
- -j, --jobs N Run N test jobs in parallel (try 9.)
- --state=opts Control prove's persistent state.
- --rc=rcfile Process options from rcfile
- --rules Rules for parallel vs sequential processing.
If ~/.proverc or ./.proverc exist they will be read and any options they contain processed before the command line options. Options in .proverc are specified in the same way as command line options:
- # .proverc
- --state=hot,fast,save
- -j9
Additional option files may be specified with the --rc
option.
Default option file processing is disabled by the --norc
option.
Under Windows and VMS the option file is named _proverc rather than .proverc and is sought only in the current directory.
STDIN
If you have a list of tests (or URLs, or anything else you want to test) in a file, you can add them to your tests by using a '-':
- prove - < my_list_of_things_to_test.txt
See the README
in the examples
directory of this distribution.
If no files or directories are supplied, prove
looks for all files
matching the pattern t/*.t.
Colored test output using TAP::Formatter::Color is the default, but
if output is not to a terminal, color is disabled. You can override this by
adding the --color
switch.
Color support requires Term::ANSIColor on Unix-like platforms and Win32::Console on windows. If the necessary module is not installed colored output will not be available.
If the tests fail prove
will exit with non-zero status.
It is possible to supply arguments to tests. To do so separate them from prove's own arguments with the arisdottle, '::'. For example
- prove -v t/mytest.t :: --url http://example.com
would run t/mytest.t with the options '--url http://example.com'. When running multiple tests they will each receive the same arguments.
--exec
Normally you can just pass a list of Perl tests and the harness will know how
to execute them. However, if your tests are not written in Perl or if you
want all tests invoked exactly the same way, use the -e
, or --exec
switch:
- prove --exec '/usr/bin/ruby -w' t/
- prove --exec '/usr/bin/perl -Tw -mstrict -Ilib' t/
- prove --exec '/path/to/my/customer/exec'
--merge
If you need to make sure your diagnostics are displayed in the correct
order relative to test results you can use the --merge
option to
merge the test scripts' STDERR into their STDOUT.
This guarantees that STDOUT (where the test results appear) and STDERR (where the diagnostics appear) will stay in sync. The harness will display any diagnostics your tests emit on STDERR.
Caveat: this is a bit of a kludge. In particular note that if anything that appears on STDERR looks like a test result the test harness will get confused. Use this option only if you understand the consequences and can live with the risk.
--trap
The --trap
option will attempt to trap SIGINT (Ctrl-C) during a test
run and display the test summary even if the run is interrupted
--state
You can ask prove
to remember the state of previous test runs and
select and/or order the tests to be run based on that saved state.
The --state
switch requires an argument which must be a comma
separated list of one or more of the following options.
last
Run the same tests as the last time the state was saved. This makes it possible, for example, to recreate the ordering of a shuffled test.
- # Run all tests in random order
- $ prove -b --state=save --shuffle
- # Run them again in the same order
- $ prove -b --state=last
failed
Run only the tests that failed on the last run.
- # Run all tests
- $ prove -b --state=save
- # Run failures
- $ prove -b --state=failed
If you also specify the save
option newly passing tests will be
excluded from subsequent runs.
- # Repeat until no more failures
- $ prove -b --state=failed,save
passed
Run only the passed tests from last time. Useful to make sure that no new problems have been introduced.
all
Run all tests in normal order. Multple options may be specified, so to run all tests with the failures from last time first:
- $ prove -b --state=failed,all,save
hot
Run the tests that most recently failed first. The last failure time of
each test is stored. The hot
option causes tests to be run in most-recent-
failure order.
- $ prove -b --state=hot,save
Tests that have never failed will not be selected. To run all tests with the most recently failed first use
- $ prove -b --state=hot,all,save
This combination of options may also be specified thus
- $ prove -b --state=adrian
todo
Run any tests with todos.
slow
Run the tests in slowest to fastest order. This is useful in conjunction
with the -j
parallel testing switch to ensure that your slowest tests
start running first.
- $ prove -b --state=slow -j9
fast
Run test tests in fastest to slowest order.
new
Run the tests in newest to oldest order based on the modification times of the test scripts.
old
Run the tests in oldest to newest order.
fresh
Run those test scripts that have been modified since the last test run.
save
Save the state on exit. The state is stored in a file called .prove (_prove on Windows and VMS) in the current directory.
The --state
switch may be used more than once.
- $ prove -b --state=hot --state=all,save
The --rules
option is used to control which tests are run sequentially and
which are run in parallel, if the --jobs
option is specified. The option may
be specified multiple times, and the order matters.
The most practical use is likely to specify that some tests are not "parallel-ready". Since mentioning a file with --rules doesn't cause it to be selected to run as a test, you can "set and forget" some rules preferences in your .proverc file. Then you'll be able to take maximum advantage of the performance benefits of parallel testing, while some exceptions are still run in parallel.
- # All tests are allowed to run in parallel, except those starting with "p"
- --rules='seq=t/p*.t' --rules='par=**'
- # All tests must run in sequence except those starting with "p", which should be run parallel
- --rules='par=t/p*.t'
jobs
in your Harness object.
We implement our own glob-style pattern matching for --rules. Here are the supported patterns:
- ** is any number of characters, including /, within a pathname
- * is zero or more characters within a filename/directory name
- ? is exactly one character within a filename/directory name
- {foo,bar,baz} is any of foo, bar or baz.
- \ is an escape character
If you need more advanced management of what runs in parallel vs in sequence, see
the associated 'rules' documentation in TAP::Harness and TAP::Parser::Scheduler.
If what's possible directly through prove
is not sufficient, you can write your own
harness to access these features directly.
prove introduces a separation between "options passed to the perl which
runs prove" and "options passed to the perl which runs tests"; this
distinction is by design. Thus the perl which is running a test starts
with the default @INC
. Additional library directories can be added
via the PERL5LIB
environment variable, via -Ifoo in PERL5OPT
or
via the -Ilib
option to prove.
Normally when a Perl program is run in taint mode the contents of the
PERL5LIB
environment variable do not appear in @INC
.
Because PERL5LIB
is often used during testing to add build
directories to @INC
prove passes the names of any directories found
in PERL5LIB
as -I switches. The net effect of this is that
PERL5LIB
is honoured even when prove is run in taint mode.
You can load a custom TAP::Parser::Formatter:
- prove --formatter MyFormatter
You can load custom TAP::Parser::SourceHandlers, to change the way the parser interprets particular sources of TAP.
- prove --source MyHandler --source YetAnother t
If you want to provide config to the source you can use:
- prove --source MyCustom \
- --source Perl --perl-option 'foo=bar baz' --perl-option avg=0.278 \
- --source File --file-option extensions=.txt --file-option extensions=.tmp t
- --source pgTAP --pgtap-option pset=format=html --pgtap-option pset=border=2
Each --$source-option
option must specify a key/value pair separated by an
=
. If an option can take multiple values, just specify it multiple times,
as with the extensions=
examples above. If the option should be a hash
reference, specify the value as a second pair separated by a =
, as in the
pset=
examples above (escape =
with a backslash).
All --sources
are combined into a hash, and passed to new in TAP::Harness's
sources
parameter.
See TAP::Parser::IteratorFactory for more details on how configuration is passed to SourceHandlers.
Plugins can be loaded using the -Pplugin syntax, eg:
- prove -PMyPlugin
This will search for a module named App::Prove::Plugin::MyPlugin
, or failing
that, MyPlugin
. If the plugin can't be found, prove
will complain & exit.
You can pass arguments to your plugin by appending =arg1,arg2,etc
to the
plugin name:
- prove -PMyPlugin=fou,du,fafa
Please check individual plugin documentation for more details.
For an up-to-date list of plugins available, please check CPAN:
http://search.cpan.org/search?query=App%3A%3AProve+Plugin
Please see PLUGINS in App::Prove.