added UserFactory and UserTest.php

app/Models/Invoice.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+/**
+ * App\Invoice
+ *
+ * @property int $id
+ * @property string $token
+ * @property string $order
+ * @property string|null $provider
+ * @property string $user_id
+ * @property string $plan_id
+ * @property array $seller
+ * @property array $client
+ * @property array $bag
+ * @property string|null $notes
+ * @property string $total
+ * @property string $currency
+ * @property \Illuminate\Support\Carbon|null $created_at
+ * @property \Illuminate\Support\Carbon|null $updated_at
+ * @property-read \App\User|null $user
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice newModelQuery()
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice newQuery()
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice query()
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereBag($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereClient($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereCreatedAt($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereCurrency($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereId($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereNotes($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereOrder($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice wherePlanId($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereProvider($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereSeller($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereToken($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereTotal($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereUpdatedAt($value)
+ * @method static \Illuminate\Database\Eloquent\Builder|\App\Invoice whereUserId($value)
+ * @mixin \Eloquent
+ */
+class Invoice extends Model
+{
+    protected $guarded = [
+        'id'
+    ];
+
+    protected $casts = [
+        'seller' => 'array',
+        'client' => 'array',
+        'bag'    => 'array',
+    ];
+
+    /**
+     * Get user instance
+     *
+     * @return \Illuminate\Database\Eloquent\Relations\HasOne
+     */
+    public function user() {
+        return $this->hasOne(User::class, 'id', 'user_id');
+    }
+}