Fixed random double elimination seeding to avoid double byes in round 1 and evenly distribute the number of round 1 matches from the top and bottom half of the bracket

test/integration/random_seeding_test.rb

@@ -0,0 +1,36 @@
+require 'test_helper'
+
+class RandomSeedingTest < ActionDispatch::IntegrationTest
+  def setup
+
+  end
+
+  def clean_up_original_seeds(tournament)
+    tournament.wrestlers.select{|w| w.original_seed > 12}.each do |wrestler|
+        wrestler.original_seed = nil
+        wrestler.save
+    end
+    tournament.wrestlers.reload.each do |wrestler|
+      wrestler.bracket_line = nil
+      wrestler.save
+    end
+    GenerateTournamentMatches.new(tournament).generate
+  end
+
+  test "There are no double byes in a double elimination tournament round 1" do
+    create_double_elim_tournament_single_weight(18, "Regular Double Elimination 1-8")
+    clean_up_original_seeds(@tournament)
+    round_one_matches = @tournament.matches.reload.select{|m| m.round == 1}
+    assert round_one_matches.select{|m| m.w1.nil? and m.w2.nil? }.size == 0 
+  end
+
+  test "There are the same number of matches in the top half and bottom half of a double elimination tournament in round 1" do
+    create_double_elim_tournament_single_weight(18, "Regular Double Elimination 1-8")
+    clean_up_original_seeds(@tournament)
+    round_one_matches = @tournament.matches.reload.select{|m| m.round == 1}
+    # 32 man bracket there are 16 matches so top half is bracket_position_number 1-8 and bottom is 9-16
+    round_one_top_half = round_one_matches.select{|m| !m.w1.nil? and !m.w2.nil? and m.bracket_position_number < 9}
+    round_one_bottom_half = round_one_matches.select{|m| !m.w1.nil? and !m.w2.nil? and m.bracket_position_number > 8}
+    assert round_one_top_half.size == round_one_bottom_half.size
+  end
+end