First time doing PHPUnit testing. And I think I might not be doing this right.

tests\Unit\ScheduleProcessorTest.php

<?php

namespace Tests\Unit;

use Mockery;
use Carbon\Carbon;
use Tests\TestCase;
use App\ScheduleProcessor;
use App\Contracts\MailMessage;
use Illuminate\Support\Collection;

class ScheduleProcessorTest extends TestCase
{
    public function testFindsEvents()
    {
        $message = Mockery::mock(MailMessage::class);
        $message->shouldReceive('getBody')->once()
            ->andReturn(file_get_contents($this->app->basePath('tests/emails/HasLunchBreaks.txt')));

        $events = (new ScheduleProcessor($message))->events();

        $this->assertInstanceOf(Collection::class, $events);
        $this->assertEquals(6, $events->count());

        //
        $event = $events->first();
        $this->assertInternalType('array', $event);

        $this->assertInternalType('string', $event['title']);
        $this->assertInstanceOf(Carbon::class, $event['start']);
        $this->assertInstanceOf(Carbon::class, $event['finish']);

        $this->assertEquals('7.5 - Carts', $event['title']);
        $this->assertEquals('2017-06-04 08:00:00', $event['start']->toDateTimeString());
        $this->assertEquals('2017-06-04 16:00:00', $event['finish']->toDateTimeString());

        $event = $events->last();
        $this->assertInternalType('string', $event['title']);
        $this->assertInstanceOf(Carbon::class, $event['date']);

        $this->assertEquals('30.5 Weekly Hours', $event['title']);
        $this->assertEquals('2017-06-10', $event['date']->toDateString());


    }
}