require 'test_helper'

class UserTest < ActiveSupport::TestCase
  def setup
    @user=User.new(name:"Example User", email:"user@example.com", password: "foobar", password_confirmation: "foobar")
  end

  test "should be valid" do
    assert @user.valid?
  end

  test "name should be present" do
    @user.name = "" # insert a blank string to User db
    assert_not @user.valid? # check that the resulting User object is not valid
  end

  test "email should be present" do
    @user.email = ""
    assert_not @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

#first write passing tests for valid email addresses
  test "email validation should accept valid addresses" do
    valid_addresses = %w[user@example.com USER@foo.COM A_US-ER@foo.bar.org first.last@foo.jp alice+bob@baz.cn]
    valid_addresses.each do |valid_address|
      @user.email=valid_address
      assert @user.valid?, "#{valid_address.inspect} should be valid"
    end
  end

#next write test for the invalidity of email addresses (at this point tests return red. => validation not occured)
  test "email validation should reject invalid addresses" do
    invalid_addresses = %w[user@example,com user_at_foo.org user.name@example. foo@bar_baz.com foo@bar+baz.com]
    invalid_addresses.each do |invalid_address|
      @user.email=invalid_address
      assert_not @user.valid?, "#{invalid_address.inspect} should be valid"
    end
  end
# =>after writing validation in model, above test returns green

test "email addresses should be unique" do
  duplicate_user = @user.dup #create a user with the same email address as @user
  duplicate_user.email = @user.email.upcase #test for case insensitivity
  @user.save
  assert_not duplicate_user.valid?
end

test "email addresses should be saved as lower-case" do
  mixed_case_email = "Foo@ExAMPle.CoM"
  @user.email = mixed_case_email
  @user.save
  assert_equal mixed_case_email.downcase, @user.reload.email
end

test "password should be present (nonblank)" do
  @user.password = @user.password_confirmation = " " * 6
  assert_not @user.valid?
end

test "password should have a minimum length" do
  @user.password = @user.password_confirmation = "a" * 5
  assert_not @user.valid?
end

end
