spec/spec_helper.rb in interval_notation-0.1.0 vs spec/spec_helper.rb in interval_notation-0.1.1

@@ -1,35 +1,70 @@
 require 'rspec'
+
+require_relative '../lib/interval_notation'
+
+include IntervalNotation
+include IntervalNotation::BasicIntervals
+include IntervalNotation::Syntax::Short
+
+def interval_for_each_boundary_type(from, to)
+  return enum_for(:interval_for_each_boundary_type, from, to)  unless block_given?
+  [true, false].product([true,false]).each do |include_from, include_to|
+    yield BasicIntervals.interval_by_boundary_inclusion(include_from, from, include_to, to).to_interval_set
+  end
+end
+
+
+def pairs_of_intervals_for_each_boundary_with_answer(from_1, to_1, from_2, to_2, answer)
+  interval_for_each_boundary_type(from_1, to_1).flat_map { |interval_1|
+    interval_for_each_boundary_type(from_2, to_2).map { |interval_2|
+      [[interval_1, interval_2], answer]
+    }
+  }
+end
+
+def each_combination_of_intervals(intervals)
+  basic_intervals = intervals.flat_map(&:intervals)
+  (1..basic_intervals.size / 2).each do |chunk_1_size|
+    indices = basic_intervals.size.times.to_a
+    indices.combination(chunk_1_size).each do |chunk_1_indices|
+      chunk_2_indices = indices - chunk_1_indices
+      chunk_1 = IntervalNotation::Operations.union(chunk_1_indices.map{|i| IntervalSet.new([basic_intervals[i]]) })
+      chunk_2 = IntervalNotation::Operations.union(chunk_2_indices.map{|i| IntervalSet.new([basic_intervals[i]]) })
+      yield chunk_1, chunk_2
+    end
+  end
+end