Add tests for ex06

courses/ruby/ex06/ex06_tests.rb

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+require "minitest/autorun"
+require "minitest/pride"
+
+require_relative "delegate"
+
+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