tests/Unit/EmailLayoutRendererTest.php

<?php

namespace Tests\Unit;

use App\Domain\Communications\EmailLayoutRenderer;
use Tests\TestCase;

class EmailLayoutRendererTest extends TestCase
{
    public function test_email_layout_wraps_plain_text_body(): void
    {
        $html = app(EmailLayoutRenderer::class)->bodyToHtml("Thank you.\n\nPay here: https://example.com/pay?token=abc");

        $this->assertStringContainsString('<p>Thank you.</p>', $html);
        $this->assertStringContainsString('href="https://example.com/pay?token=abc"', $html);
        $this->assertStringNotContainsString('<script', strtolower($html));
    }

    public function test_email_layout_escapes_body_html(): void
    {
        $html = app(EmailLayoutRenderer::class)->bodyToHtml('<strong>Code</strong>');

        $this->assertStringContainsString('&lt;strong&gt;Code&lt;/strong&gt;', $html);
        $this->assertStringNotContainsString('<strong>Code</strong>', $html);
    }

    public function test_email_layout_renders_safe_bold_markers_after_escaping_body(): void
    {
        $html = app(EmailLayoutRenderer::class)->bodyToHtml('Your code is **123456**. Do not trust **<script>bad</script>**.');

        $this->assertStringContainsString('Your code is <strong>123456</strong>.', $html);
        $this->assertStringContainsString('<strong>&lt;script&gt;bad&lt;/script&gt;</strong>', $html);
        $this->assertStringNotContainsString('<script>bad</script>', $html);
    }

    public function test_email_layout_has_black_header_and_footer_fallbacks_without_script(): void
    {
        $template = file_get_contents(resource_path('views/emails/mdn-layout.blade.php'));

        $this->assertStringContainsString('background-color: #0b0b0b', $template);
        $this->assertStringContainsString('bgcolor="#0b0b0b"', $template);
        $this->assertStringContainsString('<header class="email-header" bgcolor="#0b0b0b" style="background-color: #0b0b0b;">', $template);
        $this->assertStringContainsString('<footer class="email-footer" bgcolor="#0b0b0b" style="background-color: #0b0b0b;">', $template);
        $this->assertStringNotContainsString('<script', strtolower($template));
    }
}