<?php

namespace Tests\Unit;

use Tests\TestCase;
use Illuminate\Foundation\Testing\DatabaseMigrations;
use Illuminate\Foundation\Testing\DatabaseTransactions;
use App\Order;
use App\User;
use SM\SMException;
use Illuminate\Support\Facades\Auth;

class StatebleOrderTest extends TestCase
{
    protected $order;

    protected function setUp()
    {
        parent::setup();
        $this->order = factory(Order::class)->create();
        Auth::login(factory(User::class)->create());
    }

    public function testCreation()
    {
        $this->assertInstanceOf('SM\StateMachine\StateMachine', $this->order->stateMachine());
    }

    public function testGetState()
    {
        $this->assertEquals('new', $this->order->stateIs());
    }

    public function testTransitionState()
    {
        $this->order->transition('process');

        // let's refresh the model to see if the state was really persisted
        $this->order = $this->order->fresh();

        $this->assertEquals('processed', $this->order->stateIs());
        $this->assertEquals(1,$this->order->history()->count());

        $this->order->transition('ship');

        $this->order = $this->order->fresh();

        $this->assertEquals('shipped', $this->order->stateIs());
        $this->assertEquals(2,$this->order->history()->count());
    }

    public function testTransitionAllowed()
    {
        $this->assertTrue($this->order->transitionAllowed('process'));
        $this->assertFalse($this->order->transitionAllowed('ship'));
    }

    public function testInvalidTransition()
    {
        $this->expectException(SMException::class);

        $this->order->transition('ship');
    }
}