Created
September 18, 2015 19:53
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class Numbers | |
def initialize(list) | |
@list = list | |
end | |
attr_reader :list | |
def includes?(a_number) | |
return true if list.detect { |element| element.to_i == a_number.to_i } | |
return false | |
end | |
end | |
require 'minitest/autorun' | |
class NumbersTest < MiniTest::Test | |
def test_it_will_return_true_if_user_prompted_number_is_in_initial_list | |
list_of_numbers = [1,2,3,4,5,6,7,8,9,10] | |
numbers = Numbers.new(list_of_numbers) | |
assert_equal(true, numbers.includes?(2)) | |
end | |
def test_it_will_return_false_if_the_user_prompted_number_is_not_in_initial_list | |
list_of_numbers = [1,2,3,4,5,6,7,8,9,10] | |
numbers = Numbers.new(list_of_numbers) | |
assert_equal(false, numbers.includes?(20)) | |
end | |
def test_floats_count_in_the_includes | |
list_of_numbers = [1,2,3,4,5,6,7,8,9,10] | |
numbers = Numbers.new(list_of_numbers) | |
assert_equal(true, numbers.includes?(2.0)) | |
end | |
def test_floats_that_differ_in_the_thousandths_count_in_the_includes | |
list_of_numbers = [1,2,3,4,5,6,7,8,9,10] | |
numbers = Numbers.new(list_of_numbers) | |
assert_equal(true, numbers.includes?(2.001)) | |
end | |
def test_floats_that_differ_in_the_thousandths_count_in_the_includes_scenario_2 | |
list_of_numbers = [1,2,3,4,5,6,7,8,9,10] | |
numbers = Numbers.new(list_of_numbers) | |
assert_equal(true, numbers.includes?(10.005)) | |
end | |
def test_it_will_fail_when_comparing_a_word | |
list_of_numbers = [1,2,3,4,5,6,7,8,9,10] | |
numbers = Numbers.new(list_of_numbers) | |
assert_equal(false, numbers.includes?("ten")) | |
end | |
end |
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