2meet-data-optimizer-hivepress-addon/tests/unit/AdminHivePressTest.php

<?php
declare(strict_types=1);

use PHPUnit\Framework\TestCase;

/**
 * Tests for WPDO_Admin_HivePress.
 *
 * @covers WPDO_Admin_HivePress
 */
class AdminHivePressTest extends TestCase {

	protected function setUp(): void {
		WPDO_HivePress_Bootstrap::reset_for_tests();
		WPDO_HivePress_Detector::reset_for_tests();
		WPDO_HivePress_Conflict_Guard::reset_for_tests();
	}

	public function test_render_outputs_addon_catalog(): void {
		$out = self::capture( static function () {
			WPDO_Admin_HivePress::render();
		} );

		$this->assertStringContainsString( 'HivePress', $out );
		$this->assertStringContainsString( 'hivepress', $out );
		$this->assertStringContainsString( 'wp wpdo hivepress', $out );
	}

	public function test_render_shows_clean_when_no_conflicts(): void {
		$out = self::capture( static function () {
			WPDO_Admin_HivePress::render();
		} );

		$this->assertStringContainsString( 'Conflict guard', $out );
		$this->assertStringContainsString( 'notice-success', $out );
	}

	/**
	 * Capture echo output of a callable in a single buffer level.
	 *
	 * Avoids PHPUnit's "did not close output buffers" warning by using
	 * the level-checked open/close pattern.
	 */
	private static function capture( callable $callable ): string {
		$start_level = ob_get_level();
		ob_start();
		try {
			$callable();
		} finally {
			$out = '';
			while ( ob_get_level() > $start_level ) {
				$out = (string) ob_get_clean() . $out;
			}
		}
		return $out;
	}
}