WP-LIT-MCP/tests/Unit/Admin/SettingsPageTest.php

<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Admin;

use Brain\Monkey\Functions;
use LIT\MCP\Admin\AdminTab;
use LIT\MCP\Admin\SettingsPage;
use LIT\MCP\Tests\Unit\TestCase;
use Mockery;

final class SettingsPageTest extends TestCase
{
    protected function setUp(): void
    {
        parent::setUp();
        Functions\stubEscapeFunctions();
        Functions\stubTranslationFunctions();
        Functions\when('admin_url')->alias(static fn (string $path = ''): string => 'https://kunde.de/wp-admin/' . $path);
        Functions\when('add_query_arg')->alias(static fn (array $args, string $url): string => $url . '?' . http_build_query($args));
        Functions\when('sanitize_key')->alias(static fn (string $key): string => strtolower((string) preg_replace('/[^a-z0-9_\-]/i', '', $key)));
    }

    protected function tearDown(): void
    {
        unset($_GET['tab'], $_GET['lit_mcp_notice']);
        parent::tearDown();
    }

    private function tab(string $slug, string $label): AdminTab
    {
        $tab = Mockery::mock(AdminTab::class);
        $tab->allows('slug')->andReturn($slug);
        $tab->allows('label')->andReturn($label);
        $tab->allows('registerActions');
        $tab->allows('render')->andReturnUsing(static function () use ($slug): void {
            echo '<p>Inhalt ' . $slug . '</p>';
        });

        return $tab;
    }

    public function testRendersTabsAndTheRequestedTab(): void
    {
        Functions\when('current_user_can')->justReturn(true);
        $_GET['tab'] = 'zugriff';
        $page = new SettingsPage([$this->tab('verbindung', 'Verbindung'), $this->tab('zugriff', 'Zugriff')]);

        ob_start();
        $page->render();
        $html = (string) ob_get_clean();

        self::assertStringContainsString('Inhalt zugriff', $html);
        self::assertStringNotContainsString('Inhalt verbindung', $html);
        self::assertMatchesRegularExpression('/tab=zugriff" class="nav-tab nav-tab-active"/', $html);
        self::assertSame(['verbindung', 'zugriff'], $page->tabSlugs());
    }

    public function testRendersTheLogoTopRightOnlyWhenGiven(): void
    {
        Functions\when('current_user_can')->justReturn(true);
        Functions\when('esc_url')->returnArg();

        ob_start();
        (new SettingsPage([$this->tab('verbindung', 'Verbindung')], 'https://example.test/logo.svg'))->render();
        $withLogo = (string) ob_get_clean();
        ob_start();
        (new SettingsPage([$this->tab('verbindung', 'Verbindung')]))->render();
        $withoutLogo = (string) ob_get_clean();

        self::assertStringContainsString('<img src="https://example.test/logo.svg" alt="Loosen-IT Logo"', $withLogo);
        self::assertStringContainsString('right:0', $withLogo);
        self::assertStringNotContainsString('lit-mcp-logo', $withoutLogo);
    }

    public function testUnknownTabFallsBackToTheFirstAndNoticesAreShown(): void
    {
        Functions\when('current_user_can')->justReturn(true);
        $_GET['tab'] = '../../evil';
        $_GET['lit_mcp_notice'] = 'revoked';
        $page = new SettingsPage([$this->tab('verbindung', 'Verbindung')]);

        ob_start();
        $page->render();
        $html = (string) ob_get_clean();

        self::assertSame('verbindung', $page->currentTab());
        self::assertStringContainsString('Inhalt verbindung', $html);
        self::assertStringContainsString('notice-success', $html);
    }

    public function testNothingIsRenderedWithoutManageOptions(): void
    {
        Functions\when('current_user_can')->justReturn(false);

        ob_start();
        (new SettingsPage([$this->tab('verbindung', 'Verbindung')]))->render();

        self::assertSame('', ob_get_clean());
    }

    public function testRegisterHooksMenuSettingsAndTabActions(): void
    {
        $tab = Mockery::mock(AdminTab::class);
        $tab->allows('slug')->andReturn('verbindung');
        $tab->expects('registerActions')->once();
        $page = new SettingsPage([$tab]);
        Functions\expect('add_action')->once()->with('admin_menu', [$page, 'addMenu']);
        Functions\expect('add_action')->once()->with('admin_init', [$page, 'registerSettings']);

        $page->register();
    }
}