require File.expand_path(File.dirname(__FILE__) + '/spec_helper')

describe "Ssn" do
  describe "having ActiveRecord extensions" do
    it "should respond to has_ssn" do
      ActiveRecord::Base.respond_to?( :has_ssn ).should be_true
    end

    it "should respond to has_ssns" do
      ActiveRecord::Base.respond_to?( :has_ssns ).should be_true
    end
  end

  describe "when a user provides a symbol to the has_ssn method" do
    before :each do
      @user = User.new :name => 'John Smith', :raw_ssn => '123456789'
    end

    it "should respond to a getter method with the correct name" do
      @user.respond_to?( :ssn ).should be_true
    end

    it "should respond to a setter method with the correct name" do
      @user.respond_to?( :ssn= ).should be_true
    end

    it "should add a length validation on the raw ssn field" do
      @user.raw_ssn = '1234567890'
      @user.save.should be_false
    end

    it "should not allow any formatting in the raw ssn field" do
      @user.raw_ssn = '1-3456789'
      @user.save.should be_false
    end

    it "should not allow a mal-formed social security number" do
      lambda { @user.ssn = "1-1345-6789" }.should raise_error
    end

    it "should allow correctly formed social security numbers" do
      lambda { @user.ssn = "123-45-6789" }.should_not raise_error
    end

    it "should allow correctly formed social security numbers" do
      lambda { @user.ssn = "123456789" }.should_not raise_error
    end
  end

  describe "in general" do
    before :each do
      @user = User.new :name => 'John Smith', :raw_ssn => '123456789'
    end

    it "should return nil if the raw ssn is nil" do
      @user.raw_ssn = nil
      @user.save!
      @user.ssn.should be_nil
    end

    it "should return nil if the raw ssn is ''" do
      @user.raw_ssn = ''
      @user.save!
      @user.ssn.should be_nil
    end

    it "should return a formatted social security number" do
      @user.ssn.should == '123-45-6789'
    end

    it "should set ssn" do
      @user.ssn = '234-56-7890'
      @user.ssn.should == '234-56-7890'
    end

    it "should strip formatting from a social security number" do
      @user.ssn = '234-56-7890'
      @user.raw_ssn.should == '234567890'
    end
  end
end