assertJsonPathContain.php

<?php

// for Laravel 7+
use Illuminate\Testing\Assert;
use Illuminate\Testing\TestResponse;

// for Laravel 5.*
use Illuminate\Foundation\Testing\Assert;
use Illuminate\Foundation\Testing\TestResponse;

// Macro
TestResponse::macro('assertJsonPathContain', function ($path, $array) {

    Assert::assertNotEmpty($this->json($path), $this->assertJsonMessage($data));

    Assert::assertArraySubset($data, $this->json($path));
    
    return $this;
});

// Usage Example
$response = $this->get('/api/users');

$response->assertJsonPathContain('data.0', [
	'user_id' => $user->id,
]);