Add unit tests

database/factories/VaultFactory.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Database\Factories;
+
+use App\Models\User;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\Vault>
+ */
+final class VaultFactory extends Factory
+{
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'name' => fake()->words(3, true),
+            'created_by' => User::factory(),
+            'opened_at' => now(),
+        ];
+    }
+}

database/factories/VaultNodeFactory.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Database\Factories;
+
+use App\Models\Vault;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\VaultNode>
+ */
+final class VaultNodeFactory extends Factory
+{
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'vault_id' => Vault::factory(),
+            'parent_id' => null,
+            'is_file' => true,
+            'name' => fake()->name(),
+            'extension' => 'md',
+            'content' => fake()->paragraph(),
+        ];
+    }
+}