First commit

app/models/user.rb

 class User < ApplicationRecord
+  validates :name,  presence: true, length: { maximum: 50 }
+  validates :email, presence: true, length: { maximum: 255 }
 end

test/models/user_test.rb

-require 'test_helper'
+require "test_helper"
 
 class UserTest < ActiveSupport::TestCase
-  # test "the truth" do
-  #   assert true
-  # end
+
+  def setup
+    @user = User.new(name: "Example User", email: "user@example.com")
+  end
+
+  test "should be valid" do
+    assert @user.valid?
+  end
+
+  test "name should not be too long" do
+    @user.name = "a" * 51    
+    assert_not @user.valid?
+  end
+
+  test "email should not be too long" do
+    @user.email = "a" * 244 + "@example.com"
+    assert_not @user.valid?
+  end
 end