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Perl 5 version 26.3 documentation

App::Prove

NAME
VERSION
DESCRIPTION
SYNOPSIS
METHODS

Class Methods
Attributes

PLUGINS

Sample Plugin

SEE ALSO

NAME

App::Prove - Implements the prove command.

VERSION

Version 3.38

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 ), "\n";
      # 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\n";
      }
      return 1;
  }
  1;