Commit iniziale di eminuxCRM: CRM Rails con pipeline, campagne email e Docker.

Include autenticazione, progetti isolati, mail marketing HTML con SMTP, test A/B e editor WYSIWYG.

Co-authored-by: Cursor <cursoragent@cursor.com>

test/models/user_management_test.rb

@@ -0,0 +1,51 @@
+require "test_helper"
+
+class UserManagementTest < ActiveSupport::TestCase
+  test "cannot deactivate the last active admin" do
+    admin = users(:admin)
+    assert admin.last_active_admin?
+    assert_not admin.can_be_deactivated?
+
+    admin.active = false
+    assert_not admin.valid?
+    assert_includes admin.errors[:base].join, "almeno un amministratore attivo"
+  end
+
+  test "cannot demote the last active admin" do
+    admin = users(:admin)
+    admin.role = "user"
+    assert_not admin.valid?
+    assert_includes admin.errors[:base].join, "almeno un amministratore attivo"
+  end
+
+  test "can deactivate seed admin when another admin exists" do
+    other = User.create!(
+      email: "second-admin@example.com",
+      first_name: "Second",
+      last_name: "Admin",
+      role: "admin",
+      password: "password123",
+      password_confirmation: "password123",
+      active: true
+    )
+    admin = users(:admin)
+
+    assert_not admin.last_active_admin?
+    assert admin.can_be_deactivated?
+    assert admin.update(active: false)
+    assert_not admin.reload.active?
+    assert other.reload.active?
+  end
+
+  test "cannot destroy the last active admin" do
+    admin = users(:admin)
+    assert_not admin.destroy
+    assert admin.errors[:base].join.include?("unico amministratore attivo") || User.exists?(admin.id)
+  end
+
+  test "can destroy a regular user" do
+    marco = users(:marco)
+    assert marco.destroy
+    assert_not User.exists?(marco.id)
+  end
+end