TheCorrespondingSquares/chess-app

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spec/models/bishop_spec.rb

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require 'rails_helper'

RSpec.describe Bishop, type: :model do
  let(:user) { FactoryGirl.create(:user) }
  let(:game) { FactoryGirl.create(:game, white_player_id: user.id)}
  before(:each) { game.pieces.destroy_all }

  describe "bishop#valid_move?" do
    subject(:bishop_valid_move?) { bishop.valid_move?(destination_x, destination_y) }

    let(:bishop) { FactoryGirl.create(:bishop, color: "White", x_pos: 3, y_pos: 0, game_id: game.id) }

    context 'for valid move' do
      context 'diagonal' do
        let(:destination_x) { 1 }
        let(:destination_y) { 2 }

        it { is_expected.to eq(true) }
      end
    end

    context 'for invalid move' do
      context 'when not obstructed' do
        let(:destination_x) { 4 }
        let(:destination_y) { 5 }

        it { is_expected.to eq(false) }
      end

      context 'when obstructed' do
        let!(:rook) { FactoryGirl.create(:rook, color: "White", x_pos: 5, y_pos: 2, game_id: game.id) }
        let(:destination_x) { 6 }
        let(:destination_y) { 3 }

        it { is_expected.to eq(false) }
      end
    end
  end

end