add new role functionality

tests/Feature/StoreRoleTest.php

@@ -0,0 +1,52 @@
+<?php
+
+use App\Models\Role;
+use App\Models\User;
+
+test('guests cannot access the create role page', function () {
+    $this->get('/roles/create')->assertRedirect('/login');
+});
+
+test('authenticated users can access the create role page', function () {
+    $this->actingAs(User::factory()->create())
+        ->get('/roles/create')
+        ->assertOk()
+        ->assertViewIs('roles.create');
+});
+
+test('authenticated users can create a role', function () {
+    $this->actingAs(User::factory()->create())
+        ->post('/roles', ['name' => 'Manager', 'description' => 'Manages things'])
+        ->assertRedirect(route('roles.index'))
+        ->assertSessionHas('status', 'role-created');
+
+    $this->assertDatabaseHas('roles', ['name' => 'Manager', 'description' => 'Manages things']);
+});
+
+test('role name is required', function () {
+    $this->actingAs(User::factory()->create())
+        ->post('/roles', ['name' => '', 'description' => 'Some description'])
+        ->assertSessionHasErrors('name');
+});
+
+test('role name must be unique', function () {
+    Role::factory()->create(['name' => 'Admin']);
+
+    $this->actingAs(User::factory()->create())
+        ->post('/roles', ['name' => 'Admin'])
+        ->assertSessionHasErrors('name');
+});
+
+test('description is optional', function () {
+    $this->actingAs(User::factory()->create())
+        ->post('/roles', ['name' => 'Viewer'])
+        ->assertRedirect(route('roles.index'));
+
+    $this->assertDatabaseHas('roles', ['name' => 'Viewer', 'description' => null]);
+});
+
+test('guests cannot create a role', function () {
+    $this->post('/roles', ['name' => 'Admin'])->assertRedirect('/login');
+
+    $this->assertDatabaseMissing('roles', ['name' => 'Admin']);
+});