require 'test_helper'
require 'minitest/autorun'

class FakedCollectionTest < ActiveSupport::TestCase
  fixtures :all

  let(:photos){
    steve_prof = users(:steve).profiles.first
    PolyBelongsTo::FakedCollection.new(steve_prof, Photo)
  }

  it ".all is an Array" do
    photos.all.is_a?(Array).must_be_same_as true
    photos.all.kind_of?(Array).must_be_same_as true
  end

  it "first is the item" do
    photos.first.class.name.must_equal "Photo"
  end

  it "last is the item" do
    photos.last.class.name.must_equal "Photo"
  end

  it "counts as 1 or 0" do
    photos.count.between?(0,1).must_be_same_as true
    photos.size.between?(0,1).must_be_same_as true
  end

  it "FakedCollection has ancestors" do
    photos.ancestors.include?(Object).must_be_same_as true
  end

  it "build returns FakedCollection object" do
    photos.kind_of?(PolyBelongsTo::FakedCollection).must_be_same_as true
  end

  it "builds appropriately" do
    photos.build({content: "cheese"})
    photos.first.content.must_equal "cheese"
  end

  it "build returns self and not nil" do
    res = photos.build({content: "cheese"})
    res.wont_be_nil
    res.class.name.must_equal photos.class.name
    res.first.content.must_equal "cheese"
    photos.first.content.must_equal "cheese"
  end

  it "loops appropriately" do
    photos.each do |photo|
      photo.class.name.must_equal "Photo"
    end
  end

  it "defines klass to inner items class" do
    photos.klass.name.must_equal "Photo"
  end

  it "respond_to? :first and :last" do
    photos.respond_to?(:first).must_be_same_as true
    photos.respond_to?(:last).must_be_same_as true
  end

  it "knows sneeze is a missing method" do
    ->{photos.sneeze}.must_raise NoMethodError
  end

  it "will not initialize on has_many" do
    steve = users(:steve)
    ->{ PolyBelongsTo::FakedCollection.new(steve, Profile) }.must_raise RuntimeError 
  end

end