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

describe Cardflex::BaseModule do
  class TestClass
    include Cardflex::BaseModule
    module Type
      A = 'a'
      B = 'b'
      C = 'c'
    end

    def initialize(attrs)
      set_instance_variables_from_hash(attrs)
    end
  end

  it 'should assign instance variables from a hash' do
    TestClass.set_instance_variables_from_hash({ :test => 'value' })

    expect(TestClass.instance_variables).to include :@test
    expect(TestClass.instance_variable_get("@test")).to eq 'value'
  end

  it 'should preserve nested hashes' do
    TestClass.set_instance_variables_from_hash({ :test => { :nest => 'nested' }})

    expect(TestClass.instance_variable_get("@test")).to eq({ :nest => 'nested' })
  end

  it 'should snake case a string' do
    expect(TestClass.snakecase('dash-case-variable')).to eq('dash_case_variable')
  end

  it 'should create helper methods' do
    TestClass.__send__(:create_helper_methods, TestClass::Type)
    expect(TestClass.methods).to include(:a, :b, :c)
  end

  it 'should have merchant defined fields available' do
    sut = TestClass.new(:merchant_defined_field_1 => 'test')
    expect(sut.merchant_defined_field_1).to eq 'test'
  end

  it 'should raise an undefined method error for non existent merchant field' do
    expect { TestClass.new.merchant_defined_field_1 }.to raise_error
  end
end