Add tests for ex06

Author: dpatsora

courses/ruby/ex06/ex06_tests.rb

@@ -0,0 +1,137 @@
+require "minitest/autorun"
+require "minitest/pride"
+
+require_relative "delegator"
+
+class Ex06MyDelegateTest < Minitest::Test
+  Module.prepend MyDelegate
+
+  def test_my_delegate_one_argument_instance
+    skip
+    example = Class.new do
+      my_delegate :integer?, to: :@example
+
+      def initialize(example)
+        @example = example
+      end
+    end
+
+    num = 424242
+    fl = 4242.4242
+
+    tmp = example.new(num)
+    wrn = example.new(fl)
+    res = tmp.integer?
+    mis = wrn.integer?
+
+
+    assert_equal true, res
+    assert_equal false, mis
+  end
+
+  def test_my_delegate_few_argument_instance
+    skip
+    example = Class.new do
+      my_delegate :finite?, :nan?, :to_s, to: :@example
+
+      def initialize(example)
+        @example = example
+      end
+    end
+
+    num = 424242
+    fl = 12.02
+
+    tmp = example.new(num)
+    cur = example.new(fl)
+
+    res = tmp.finite?
+    rgh = cur.nan?
+    str = tmp.to_s
+
+    assert_equal true, res
+    assert_equal false, rgh
+    assert_equal "424242", str
+  end
+
+  def test_my_delegate_argument_function
+    skip
+    example = Class.new do
+      my_delegate :length, :split, to: :convert_to_str
+
+      def initialize(example)
+        @example = example
+      end
+
+      def convert_to_str
+        @example.to_s
+      end
+    end
+
+    num = 424242
+
+    tmp = example.new(num)
+
+    len = tmp.convert_to_str.length
+    cur = tmp.convert_to_str.split
+
+    assert_equal 6, len
+    assert_equal ["424242"], cur
+  end
+
+  def test_my_delegate_argument_function_with_arguments
+    skip
+    example = Class.new do
+      my_delegate :gsub, to: :@example
+      my_delegate :split, to: :convert_to_str
+
+      def initialize(example)
+        @example = example
+      end
+
+      def convert_to_str
+        @example.to_s
+      end
+    end
+
+    num = 424242
+    str = "424242"
+    tmp = example.new(str)
+    cur = example.new(num)
+    res_tmp = tmp.gsub("4", "2")
+    res_cur = tmp.convert_to_str.split('2')
+
+    assert_equal "222222", res_tmp
+    assert_equal ["4", "4", "4"], res_cur
+  end
+
+  def test_enumerables
+    skip
+    engine = Class.new do
+      def initialize(horses:)
+        @horses=horses
+      end
+      def horses
+        @horses
+      end
+    end
+    stock = Class.new do
+      include Enumerable
+      my_delegate :each, to: :engines_pack
+      def initialize(engines_pack:)
+        @engines_pack = engines_pack
+      end
+      def engines_pack
+        @engines_pack
+      end
+    end
+    engine1 = engine.new(horses: 10)
+    engine2 = engine.new(horses: 20)
+    engine3 = engine.new(horses: 30)
+    shop = stock.new(engines_pack: [engine1, engine2, engine3])
+    sum = 0
+    shop.each {|eng| sum += eng.horses}
+
+    assert_equal 60, sum
+  end
+end