Test Case with laravel Dusk showing error 'users_email_unique' - laravel

Question

I'm getting error as on below screenshot
Please help me i am trying and for this i have spend too much time but still issue no luck.
I am using laravel official dusk package for front-web testing. When i am running login test case its showing error "users_email_unique" which is above showing in picture. I am using use DatabaseTransactions but it is not reverting my last transaction. For this i am using test database also. Here is my my code:
<?php
namespace Tests\Browser;
use Illuminate\Foundation\Testing\DatabaseMigrations;
use Laravel\Dusk\Browser;
use Tests\DuskTestCase;
use App\User;
use Illuminate\Foundation\Testing\DatabaseTransactions;
class LoginTest extends DuskTestCase
{
use DatabaseTransactions;
/**
* A Dusk test example.
*
* #return void
*/
public function test_I_can_login_successfully()
{
$user = factory(User::class)->create([
'email' => 'login#gmail.com',
'password' => bcrypt('password'),
]);
$this->browse(function ($browser) use ($user) {
$browser->visit('/')
->type('email', 'login#gmail.com')
->type('password', 'password')
->press('Login')
->assertSee($user->name);
});
}
}

Answer 1

For Dusk you cannot use use DatabaseTransactions. You need to use DatabaseMigrations instead. When you update trait then you should get rid of the error.
You have sample Dusk test in documentation and it looks like this:
<?php
namespace Tests\Browser;
use App\User;
use Illuminate\Foundation\Testing\DatabaseMigrations;
use Laravel\Dusk\Chrome;
use Tests\DuskTestCase;
class ExampleTest extends DuskTestCase
{
use DatabaseMigrations;
/**
* A basic browser test example.
*
* #return void
*/
public function testBasicExample()
{
$user = factory(User::class)->create([
'email' => 'taylor#laravel.com',
]);
$this->browse(function ($browser) use ($user) {
$browser->visit('/login')
->type('email', $user->email)
->type('password', 'password')
->press('Login')
->assertPathIs('/home');
});
}
}
As you see it's also using DatabaseMigrations trait.