Add issue relation to project and creator

app/Entities/Projects/Issue.php

@@ -2,9 +2,21 @@
 
 namespace App\Entities\Projects;
 
+use App\Entities\Users\User;
+use App\Entities\Projects\Project;
 use Illuminate\Database\Eloquent\Model;
 
 class Issue extends Model
 {
     protected $fillable = ['project_id', 'title', 'body', 'creator_id'];
+
+    public function project()
+    {
+        return $this->belongsTo(Project::class);
+    }
+
+    public function creator()
+    {
+        return $this->belongsTo(User::class);
+    }
 }

tests/Unit/Models/IssueTest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace Tests\Unit\Models;
+
+use Tests\TestCase;
+use App\Entities\Users\User;
+use App\Entities\Projects\Issue;
+use App\Entities\Projects\Project;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class IssueTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /** @test */
+    public function an_issue_has_belongs_to_project_relation()
+    {
+        $issue = factory(Issue::class)->make();
+
+        $this->assertInstanceOf(Project::class, $issue->project);
+        $this->assertEquals($issue->project_id, $issue->project->id);
+    }
+
+    /** @test */
+    public function an_issue_has_belongs_to_creator_relation()
+    {
+        $issue = factory(Issue::class)->make();
+
+        $this->assertInstanceOf(User::class, $issue->creator);
+        $this->assertEquals($issue->creator_id, $issue->creator->id);
+    }
+}