First Pull

README.md

@@ -13,9 +13,11 @@ Usage
 # bundle install
 # irb -I lib
 
+require 'tictactoe'
+
 ttt = TicTacToe.new([["X", "X", "X"],
                      ["O", "O", "_"],
-                     ["O", "_","_"]]
+                     ["O", "_","_"]])
 
 ttt.winner # => "X"
 ```

lib/tictactoe.rb

@@ -23,8 +23,8 @@ def in_coll?(config, player)
   end
 
   def in_diag?(config, player)
-    diag_indexes = [(0...size).zip((0...size))]
-    diag_indexes << (0...size).to_a.reverse.zip((0...size))
+    diag_indexes = [(0...size).to_a.zip((0...size).to_a)]
+    diag_indexes << (0...size).to_a.reverse.zip((0...size).to_a)
     diagonals = diag_indexes.map {|indexes| indexes.map { |x, y| config[x][y] } }
     in_row?(diagonals, player)
   end

test/tictactoe_test.rb

@@ -1 +1,15 @@
 require 'test_helper'
+
+describe TicTacToe do
+
+	describe "X wins horizontally" do 
+		subject do
+			TicTacToe.new([["X", "X", "X"],
+                     ["O", "O", "_"],
+                     ["O", "_","_"]])
+		end
+		it "X must be the winner" do
+			subject.winner.must_equal "X"
+	end
+end
+end