TAP::Parser::SourceHandler::Executable

Section: Perl Programmers Reference Guide (3perl)
Updated: 2019-04-20
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NAME

TAP::Parser::SourceHandler::Executable - Stream output from an executable TAP source

VERSION

Version 3.42

SYNOPSIS

  use TAP::Parser::Source;
  use TAP::Parser::SourceHandler::Executable;

  my $source = TAP::Parser::Source->new->raw(['/usr/bin/ruby', 'mytest.rb']);
  $source->assemble_meta;

  my $class = 'TAP::Parser::SourceHandler::Executable';
  my $vote  = $class->can_handle( $source );
  my $iter  = $class->make_iterator( $source );

DESCRIPTION

This is an executable TAP::Parser::SourceHandler - it has 2 jobs:

1. Figure out if the TAP::Parser::Source it's given is an executable
command (``can_handle'').

2. Creates an iterator for executable commands (``make_iterator'').

Unless you're writing a plugin or subclassing TAP::Parser, you probably won't need to use this module directly.

METHODS

Class Methods

"can_handle"

  my $vote = $class->can_handle( $source );

Only votes if $source looks like an executable file. Casts the following votes:

  0.9  if it's a hash with an 'exec' key
  0.8  if it's a .bat file
  0.75 if it's got an execute bit set

"make_iterator"

  my $iterator = $class->make_iterator( $source );

Returns a new TAP::Parser::Iterator::Process for the source. "$source->raw" must be in one of the following forms:

  { exec => [ @exec ] }

  [ @exec ]

  $file

"croak"s on error.

"iterator_class"

The class of iterator to use, override if you're sub-classing. Defaults to TAP::Parser::Iterator::Process.

SUBCLASSING

Please see ``SUBCLASSING'' in TAP::Parser for a subclassing overview.

Example

  package MyRubySourceHandler;

  use strict;

  use Carp qw( croak );
  use TAP::Parser::SourceHandler::Executable;

  use base 'TAP::Parser::SourceHandler::Executable';

  # expect $handler->(['mytest.rb', 'cmdline', 'args']);
  sub make_iterator {
    my ($self, $source) = @_;
    my @test_args = @{ $source->test_args };
    my $rb_file   = $test_args[0];
    croak("error: Ruby file '$rb_file' not found!") unless (-f $rb_file);
    return $self->SUPER::raw_source(['/usr/bin/ruby', @test_args]);
  }