App::Prove(3pm) 					 Perl Programmers Reference Guide					   App::Prove(3pm)

NAME

       App::Prove - Implements the "prove" command.

VERSION

       Version 3.23

DESCRIPTION

       Test::Harness provides a command, "prove", which runs a TAP based test suite and prints a report. The "prove" command is a minimal wrapper
       around an instance of this module.

SYNOPSIS

	   use App::Prove;

	   my $app = App::Prove->new;
	   $app->process_args(@ARGV);
	   $app->run;

METHODS

   Class Methods
       "new"

       Create a new "App::Prove". Optionally a hash ref of attribute initializers may be passed.

       "state_class"

       Getter/setter for the name of the class used for maintaining state.  This class should either subclass from "App::Prove::State" or provide
       an identical interface.

       "state_manager"

       Getter/setter for the instance of the "state_class".

       "add_rc_file"

	   $prove->add_rc_file('myproj/.proverc');

       Called before "process_args" to prepend the contents of an rc file to the options.

       "process_args"

	   $prove->process_args(@args);

       Processes the command-line arguments. Attributes will be set appropriately. Any filenames may be found in the "argv" attribute.

       Dies on invalid arguments.

       "run"

       Perform whatever actions the command line args specified. The "prove" command line tool consists of the following code:

	   use App::Prove;

	   my $app = App::Prove->new;
	   $app->process_args(@ARGV);
	   exit( $app->run ? 0 : 1 );  # if you need the exit code

       "require_harness"

       Load a harness replacement class.

	 $prove->require_harness($for => $class_name);

       "print_version"

       Display the version numbers of the loaded TAP::Harness and the current Perl.

   Attributes
       After command line parsing the following attributes reflect the values of the corresponding command line switches. They may be altered
       before calling "run".

       "archive"
       "argv"
       "backwards"
       "blib"
       "color"
       "directives"
       "dry"
       "exec"
       "extensions"
       "failures"
       "comments"
       "formatter"
       "harness"
       "ignore_exit"
       "includes"
       "jobs"
       "lib"
       "merge"
       "modules"
       "parse"
       "plugins"
       "quiet"
       "really_quiet"
       "recurse"
       "rules"
       "show_count"
       "show_help"
       "show_man"
       "show_version"
       "shuffle"
       "state"
       "state_class"
       "taint_fail"
       "taint_warn"
       "test_args"
       "timer"
       "verbose"
       "warnings_fail"
       "warnings_warn"
       "tapversion"
       "trap"

PLUGINS

       "App::Prove" provides support for 3rd-party plugins.  These are currently loaded at run-time, after arguments have been parsed (so you can
       not change the way arguments are processed, sorry), typically with the "-Pplugin" switch, 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 an argument to your plugin by appending an "=" after the plugin name, eg "-PMyPlugin=foo".	You can pass multiple arguments
       using commas:

	 prove -PMyPlugin=foo,bar,baz

       These are passed in to your plugin's "load()" class method (if it has one), along with a reference to the "App::Prove" object that is
       invoking your plugin:

	 sub load {
	     my ($class, $p) = @_;

	     my @args = @{ $p->{args} };
	     # @args will contain ( 'foo', 'bar', 'baz' )
	     $p->{app_prove}->do_something;
	     ...
	 }

       Note that the user's arguments are also passed to your plugin's "import()" function as a list, eg:

	 sub import {
	     my ($class, @args) = @_;
	     # @args will contain ( 'foo', 'bar', 'baz' )
	     ...
	 }

       This is for backwards compatibility, and may be deprecated in the future.

   Sample Plugin
       Here's a sample plugin, for your reference:

	 package App::Prove::Plugin::Foo;

	 # Sample plugin, try running with:
	 # prove -PFoo=bar -r -j3
	 # prove -PFoo -Q
	 # prove -PFoo=bar,My::Formatter

	 use strict;
	 use warnings;

	 sub load {
	     my ($class, $p) = @_;
	     my @args = @{ $p->{args} };
	     my $app  = $p->{app_prove};

	     print "loading plugin: $class, args: ", join(', ', @args ), "
";

	     # turn on verbosity
	     $app->verbose( 1 );

	     # set the formatter?
	     $app->formatter( $args[1] ) if @args > 1;

	     # print some of App::Prove's state:
	     for my $attr (qw( jobs quiet really_quiet recurse verbose )) {
		 my $val = $app->$attr;
		 $val	 = 'undef' unless defined( $val );
		 print "$attr: $val
";
	     }

	     return 1;
	 }

	 1;

SEE ALSO

       prove, TAP::Harness

perl v5.16.2							    2012-10-25							   App::Prove(3pm)