require File.expand_path('../abstract_unit', __FILE__)

# Testing the find action on composite ActiveRecords with two primary keys
class TestFind < ActiveSupport::TestCase
  fixtures :capitols, :departments, :reference_types, :reference_codes,
    :suburbs, :employees

  def test_find_first
    ref_code = ReferenceCode.order('reference_type_id, reference_code').first
    assert_kind_of(ReferenceCode, ref_code)
    assert_equal([1,1], ref_code.id)
  end

  def test_find_last
    ref_code = ReferenceCode.order('reference_type_id, reference_code').last
    assert_kind_of(ReferenceCode, ref_code)
    assert_equal([2,2], ref_code.id)
  end

  def test_find_one
    ref_code = ReferenceCode.find([1,3])
    assert_not_nil(ref_code)
    assert_equal([1,3], ref_code.id)
  end

  def test_find_some
    ref_codes = ReferenceCode.find([1,3], [2,1])
    assert_kind_of(Array, ref_codes)
    assert_equal(2, ref_codes.length)

    ref_code = ref_codes[0]
    assert_equal([1,3], ref_code.id)

    ref_code = ref_codes[1]
    assert_equal([2,1], ref_code.id)
  end

  def test_find_with_strings_as_composite_keys
    capitol = Capitol.find(['The Netherlands', 'Amsterdam'])
    assert_kind_of(Capitol, capitol)
    assert_equal(['The Netherlands', 'Amsterdam'], capitol.id)
  end

  def test_find_with_strings_with_comma_as_composite_keys
    capitol = Capitol.create!(country: 'The USA', city: 'Washington, D.C.')
    assert_equal ['The USA', 'Washington, D.C.'], capitol.id

    assert_equal capitol, Capitol.find(['The USA', 'Washington, D.C.'])
    assert_equal capitol, Capitol.find(capitol.to_param)
  end

  def test_find_each
    room_assignments = []
    RoomAssignment.find_each(:batch_size => 2) do |assignment|
      room_assignments << assignment
    end

    assert_equal(RoomAssignment.count, room_assignments.uniq.length)
  end

  def test_find_each_with_scope
    scoped_departments = Department.where("id <> 3")
    scoped_departments.find_each(:batch_size => 2) do |department|
      assert department.id != 3
    end
  end

  def test_not_found
    error = assert_raise(::ActiveRecord::RecordNotFound) do
      ReferenceCode.find(['999', '999'])
    end

    expected = "Couldn't find all ReferenceCodes with 'reference_type_id,reference_code': (999, 999) (found 0 results, but was looking for 1)."
    assert_equal(with_quoted_identifiers(expected), error.message)
  end

  def test_find_with_invalid_ids
    assert_raise(::ActiveRecord::RecordNotFound) do
      Suburb.find([-1, -1])
    end
  end

  def test_find_with_no_ids
    assert_raise(::ActiveRecord::RecordNotFound) do
      Suburb.find
    end
  end

  def test_find_last_suburb
    suburb = Suburb.last
    assert_equal([2,2], suburb.id)
  end

  def test_find_last_suburb_with_order
    # Rails actually changes city_id DESC to city_id ASC
    suburb = Suburb.order('suburbs.city_id DESC').last
    assert_equal([1,1], suburb.id)
  end

  def test_find_in_batches
    Department.find_in_batches do |batch|
      assert_equal(Department.count, batch.size)
    end
  end

  def test_in_batches_enumerator
    enumerator = Department.in_batches
    enumerator.each do |batch|
      assert_equal(Department.count, batch.size)
    end
  end

  def test_in_batches_of_1
    num_found = 0
    Department.in_batches(of: 1) do |batch|
      batch.each do |dept|
        num_found += 1
      end
    end
    assert_equal(Department.count, num_found)
  end

  def test_find_by_one_association
    department = departments(:engineering)
    employees = Employee.where(:department => department)
    assert_equal(2, employees.to_a.count)
  end

  def test_find_by_all_associations
    departments = Department.all
    employees = Employee.where(:department => departments)
    assert_equal(5, employees.to_a.count)
  end

  def test_expand_all
    departments = Department.all
    employees = Employee.where(:department => departments)
    assert_equal(5, employees.count)
  end

  def test_find_one_with_params_id
    params_id = ReferenceCode.find([1,3]).to_param
    assert_equal params_id, "1,3"

    ref_code = ReferenceCode.find(params_id)
    assert_not_nil(ref_code)
    assert_equal([1,3], ref_code.id)
  end

  def test_find_some_with_array_of_params_id
    params_ids = ReferenceCode.find([1,3], [2,1]).map(&:to_param)
    assert_equal ["1,3", "2,1"], params_ids

    ref_codes = ReferenceCode.find(params_ids)
    assert_kind_of(Array, ref_codes)
    assert_equal(2, ref_codes.length)

    ref_code = ref_codes[0]
    assert_equal([1,3], ref_code.id)

    ref_code = ref_codes[1]
    assert_equal([2,1], ref_code.id)
  end
end