Add additional example models for tests

Author: huntie

tests/Fixtures/Models/Post.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Huntie\JsonApi\Tests\Fixtures\Models;
+
+class Post extends Model
+{
+    /**
+     * The author of the post.
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
+    public function author()
+    {
+        return $this->belongsTo(User::class, 'author_id');
+    }
+
+    /**
+     * The post tag memberships.
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
+     */
+    public function tags()
+    {
+        return $this->belongsToMany(Tag::class);
+    }
+}

tests/Fixtures/Models/Tag.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Huntie\JsonApi\Tests\Fixtures\Models;
+
+class Tag extends Model
+{
+    /**
+     * The posts matching the tag.
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
+     */
+    public function posts()
+    {
+        return $this->belongsToMany(Post::class);
+    }
+}

tests/Fixtures/Models/User.php

@@ -10,4 +10,14 @@ class User extends Model
      * @var array
      */
     protected $hidden = ['password'];
+
+    /**
+     * The posts the user has authored.
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     */
+    public function post()
+    {
+        return $this->hasMany(Post::class, 'author_id');
+    }
 }