---
name: "TAP::Parser::Iterator::Process"
section: "3perl"
platform: "linux"
package: "perl"
version: "5.44.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/TAP::Parser::Iterator::Process/3perl"
---

# TAP::Parser::Iterator::Process(3perl)

Iterator for process-based TAP sources

## NAME

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

## VERSION

Version 3.52

## 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,