Code Coverage for /workspace/celema/console/src/BufferedIo.php

1	<?php
2
3	declare(strict_types=1);
4
5	namespace Celema\Console;
6
7	use Override;
8
9	/**
10	* An Io that captures everything in memory instead of writing to the
11	* terminal.
12	*
13	* Made for command tests: pass it to the command (or the Runner) and assert
14	* on `output()` and `errorOutput()`. Colors are always disabled, so
15	* assertions need no escape-code stripping. The `$input` string feeds
16	* `ask()` and `confirm()`, one line per prompt.
17	*
18	* @api
19	*/
20	final class BufferedIo extends Io
21	{
22	private mixed $inputBuffer = null;
23
24	public function __construct(string $input = '')
25	{
26	parent::__construct('php://memory', 'php://memory');
27
28	if ($input !== '') {
29	$stream = $this->stdin();
30	fwrite($stream, $input);
31	rewind($stream);
32	}
33	}
34
35	#[Override]
36	protected function stdin(): mixed
37	{
38	// The parent opens its input target read-only, which php://memory
39	// honors, so the buffer needs its own read-write stream.
40	return $this->inputBuffer ??= fopen('php://memory', mode: 'w+');
41	}
42
43	public function output(): string
44	{
45	return $this->contents($this->stdout());
46	}
47
48	public function errorOutput(): string
49	{
50	return $this->contents($this->stderr());
51	}
52
53	private function contents(mixed $stream): string
54	{
55	$position = (int) ftell($stream);
56	rewind($stream);
57	$contents = (string) stream_get_contents($stream);
58	fseek($stream, $position);
59
60	return $contents;
61	}
62
63	#[Override]
64	protected function hasColorSupport(mixed $stream): bool
65	{
66	return false;
67	}
68	}