test of EmailValidator.

email_validator_spec.rb

require 'spec_helper'

describe "EmailValidator" do

  before do
    @validator = EmailValidator.new({:attributes => {email: ''}})
    @mock = double("Foo")
    allow(@mock).to receive(:errors).and_return([])
    allow(@mock.errors).to receive(:[]).and_return({})
    allow(@mock.errors[]).to receive(:<<)
  end

  it "should validate valid address" do
    expect(@mock).not_to receive(:errors)
    @validator.validate_each(@mock, "email", "test@test.com")
  end

  it "should validate invalid address" do
    expect(@mock.errors[]).to receive(:<<)
    @validator.validate_each(@mock, "email", "notvalid")
  end
end