sample_rails_tailwind/test/integration/users_signup_test.rb

require "test_helper"

class UsersSignupTest < ActionDispatch::IntegrationTest
  test "invalid signup information" do
    get signup_path
    assert_no_difference 'User.count' do
      post users_path, params: { user: { name: "",
                                         email: "user@invalid",
                                         password: "foo",
                                         password_confirmation: "bar" } }
    end
    assert_template 'users/new'
    assert_select 'div#error_explanation'
    assert_select 'div.alert-danger'
  end

  test "valid signup information" do
    get signup_path
    assert_difference 'User.count', 1 do
      post users_path, params: { user: {name: "Example User",
                                       email: "user@example.com",
                                       password: "password",
                                       password_confirmation: "password" } }
    end
    follow_redirect!
    assert_template 'users/show'
    assert_not flash.notice
    assert is_logged_in?
  end
end