TDD Kata - Roman Numerals

The Rules
Write a function that takes in an integer number and converts it to the Roman numeral string representation.

   1 -> I
   2 -> II
   3 -> III
   4 -> IV
   5 -> V
   9 -> IX
  21 -> XXI
  50 -> L
 100 -> C
 500 -> D
1000 -> M

Starting API

fun convert(value:Int):String

First Test

@Test
fun `one converts to I`() = runTest {
	assertEquals("I", convert(1))
}