TAP::Parser::Iterator::Process - Iterator for process-based TAP sources

- NAME
- VERSION
- SYNOPSIS
- DESCRIPTION
- METHODS
  - Class Methods
    - new
  - Instance Methods
    - next
    - next_raw
    - wait
    - exit
    - handle_unicode
    - get_select_handles
- ATTRIBUTION
- SEE ALSO

# NAME

TAP::Parser::Iterator::Process - Iterator for process-based TAP sources

# VERSION

Version 3.42

# SYNOPSIS

      use TAP::Parser::Iterator::Process;
      my %args = (
       command  => ['python', 'setup.py', 'test'],
       merge    => 1,
       setup    => sub { ... },
       teardown => sub { ... },
      );
      my $it   = TAP::Parser::Iterator::Process->new(\%args);
      my $line = $it->next;

# DESCRIPTION

This is a simple iterator wrapper for executing external processes, used by TAP::Parser. Unless you're writing a plugin or subclassing, you probably won't need to use this module directly.

# METHODS

## Class Methods

### `new`

Create an iterator. Expects one argument containing a hashref of the form:

       command  => \@command_to_execute
       merge    => $attempt_merge_stderr_and_stdout?
       setup    => $callback_to_setup_command
       teardown => $callback_to_teardown_command

Tries to uses IPC::Open3 & IO::Select to communicate with the spawned process if they are available. Falls back onto `open()`.

## Instance Methods

### `next`

Iterate through the process output, of course.

### `next_raw`

Iterate raw input without applying any fixes for quirky input syntax.

### `wait`

Get the wait status for this iterator's process.

### `exit`

Get the exit status for this iterator's process.

### `handle_unicode`

Upgrade the input stream to handle UTF8.

### `get_select_handles`

Return a list of filehandles that may be used upstream in a select() call to signal that this Iterator is ready. Iterators that are not handle based should return an empty list.

# ATTRIBUTION

Originally ripped off from Test::Harness.

# SEE ALSO

TAP::Object, TAP::Parser, TAP::Parser::Iterator,

TAP::Parser::Iterator::Process - Iterator for process-based TAP sources