friendica/tests/datasets/mail/mail.fixture.php

<?php

return [
	'mail' => [
		[
			'uid'           => 42,
			'author-id'     => 44,
			'uri-id'        => 44,
			'parent-uri-id' => 44,
			'thr-parent-id' => 44,
			'guid'          => '123456',
			'from-name'     => 'Tester',
			'title'         => 'item_title',
			'body'          => '[b]item_body[/b]',
		],
	],
];