Sample test asserts on phpunit

TestCase.php

<?php
use Illuminate\Foundation\Testing\WithoutMiddleware;
use Illuminate\Foundation\Testing\DatabaseMigrations;
use Illuminate\Foundation\Testing\DatabaseTransactions;

abstract class TestCase extends Illuminate\Foundation\Testing\TestCase
{
    public function assertBelongsTo($relation, $relationName){
      $this->assertEquals('Illuminate\Database\Eloquent\Relations\BelongsTo', get_class($relation));
      $this->assertEquals($relationName, get_class($relation->getRelated()));
    }

    public function assertHasOne($relation, $relationName){
      $this->assertEquals('Illuminate\Database\Eloquent\Relations\HasOne', get_class($relation));
      $this->assertEquals($relationName, get_class($relation->getRelated()));
    }

    public function assertHasMany($relation, $relationName){
      $this->assertEquals('Illuminate\Database\Eloquent\Relations\HasMany', get_class($relation));
      $this->assertEquals($relationName, get_class($relation->getRelated()));
    }
}

How to use:

class ModelFooTest extends TestCase
{
    public function testRelations(){
      $subject = factory(App\ModelFoo::class)->make();
      $this->assertHasOne($subject->District(), 'App\FooRelation');
      $this->assertHasMany($subject->FooRelations(), 'App\FooRelation');
    }
}