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romanconvertor-tests.rb
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romanconvertor-tests.rb
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# DO NOT CHANGE ANYTHING IN THIS FILE!
require "test/unit"
require_relative "./romanconvertor"
class TestRomanConvertor < Test::Unit::TestCase
@@randomValues = {
15 => "XV",
6 => "VI",
78 => "LXXVIII",
103 => "CIII"
}
@@specialValues = {
1 => "I",
5 => "V",
10 => "X",
50 => "L",
100 => "C",
500 => "D",
1000 => "M"
}
def test_toRoman_repeatingSingleDigit
assert_equal("I", toRoman(1))
assert_equal("III", toRoman(3))
end
def test_toRoman_randomSuccessfulValues
@@randomValues.each{ |key, value| assert_equal(value, toRoman(key)) }
end
def test_fromRoman_randomSuccessfulValues
@@randomValues.each{ |key, value| assert_equal(key, fromRoman(value)) }
end
def test_toRoman_specialValues
@@randomValues.each{ |key, value| assert_equal(value, toRoman(key)) }
end
def test_fromRoman_specialValues
@@randomValues.each{ |key, value| assert_equal(key, fromRoman(value)) }
end
def test_sanity
original = "MCDXCVIII"
convertedArabic = fromRoman(original)
convertedRoman = toRoman(convertedArabic)
assert_equal(original, convertedRoman)
end
def test_negativeNumber
assert_raise RangeError do
toRoman(-1)
end
end
def test_number0
assert_raise RangeError do
toRoman(0)
end
end
def test_number4000
assert_raise RangeError do
toRoman(4000)
end
end
def test_numberMoreThan4000
assert_raise RangeError do
toRoman(4001)
end
end
def test_fromRomanInvalidChars
assert_raise TypeError do
fromRoman("hwiureh")
end
end
def test_fromRomanValidButLowerCase
assert_raise TypeError do
fromRoman("ii")
end
end
end