assertRespondedWithPdf -> $pdf->html always empty

[RVP04]

I am using the below example to check whether pdf contains some text

use Spatie\LaravelPdf\Facades\Pdf;
use Spatie\LaravelPdf\PdfBuilder;

it('can download an invoice', function () {
    $this
        ->get('download-invoice')
        ->assertOk();
        
    Pdf::assertRespondedWithPdf(function (PdfBuilder $pdf) {
        return $pdf->downloadName === 'invoice-for-april-2022.pdf'
            && $pdf->isDownload()
            && str_contains($pdf->html, 'Your total for April is $10.00'));
    });
});

My code is

Pdf::view('superadmin.reports.pdf.missing_subjects', [
            'missingSubjects' => $missingSubjects
        ])->headerView('layout.reports.header', ['reportTitle' => 'Missing Subjects Reports - Branch Wise'])
            ->footerView('layout.reports.footer')
            ->format('a4')
            ->orientation(Orientation::Landscape)
            ->download('Missing Subjects Name List.pdf');

view file

@extends('layout.reports.app')

@section('content')
    <div>
        <table class="border-table">
            <thead>
            <tr style="height: 40px">
                <th style="padding: 5px; text-align: center; width: 2%;">S.No</th>
                <th style="padding: 5px; text-align: center; width: 15%;">Branch</th>
                <th style="padding: 5px; text-align: center; width: 5%;">Missing Course Name</th>
                <th style="padding: 5px; text-align: center; width: 5%;">Level</th>
                <th style="padding: 5px; text-align: center; width: 5%;">Department</th>
                <th style="padding: 5px; text-align: center; width: 5%;">Specialization</th>
            </tr>
            </thead>
            <tbody>
            @forelse($missingSubjects as $missingSubject)
                <tr style="height: 30px">
                    <td style="padding: 5px; text-align: center;width: 2%;">{{$loop->index+1 ?? ''}}</td>
                    <td style="padding: 5px; text-align: left; width: 15%;">{{optional($missingSubject->branch)->short_name ?? ''}}</td>
                    <td style="padding: 5px; text-align: center; width: 5%;">{{$missingSubject->subject_id ?? ''}}</td>
                    <td style="padding: 5px; text-align: center; width: 5%;">{{optional($missingSubject->level)->name ?? ''}}</td>
                    <td style="padding: 5px; text-align: center; width: 5%;">{{optional($missingSubject->department)->name ?? ''}}</td>
                    <td style="padding: 5px; text-align: left; width: 5%;">{{$missingSubject->specialization ?? ''}}</td>
                </tr>
            @empty
                <tr>
                    <td colspan="3">No students found</td>
                </tr>
            @endforelse
            </tbody>
        </table>
    </div>
@endsection

and my test code

test('can able to generate pdf report page for missing subject for all branch', function () {
    Subject::factory(3)->create();
    Feedback::factory()->create();
    $response = $this->get(route('reports.feedback.subject_not_found_view'));
    $response->assertStatus(200);
    $postData = [
        'report_type' => 'pdf',
    ];
    $response = $this->post(route('reports.feedback.subject_not_found_report'), $postData);
    $response->assertStatus(200);
    $response->assertOk();
    Pdf::assertRespondedWithPdf(function (PdfBuilder $pdf) {
        dd($pdf->html);
        return $pdf->downloadName === 'Missing Subjects Name List.pdf'
            && $pdf->isDownload()
            && $pdf->contains('')
            && $pdf->viewName === 'superadmin.reports.pdf.missing_subjects';
    });
});

here $pdf->html always give empty string

[vrodriguero]

I had the same question, on my tests the $pdf->html is also an empty string, but I was able to assert that the $pdf->contains('string here')