RomanNumeralChallenge

Table of Content:

• About roman numeral challenge
• Instructions - how to run and test
• Reference links

About roman numeral challenge:

We'd like you to write some code to parse and output roman numerals and share it with us as a GitHub repo. If we wrapped your code into a console application called roman, we'd expect it to work like this:

$ roman ix
9
ix

$ roman XIIII
14
XIV

$ roman MCMXCIX
1999
MCMXCIX

Additional Notes

• Roman numerals on Wikipedia
• Do create an abstract data type to represent a roman number.
• Do write unit tests.
• Do include links to any references you used.
• Do apply Postel's Law
• Don't take much more than an hour.
• Don't use someone else's code to do the parsing (we want to see how you do it!).

We'd prefer your implementation to be written in Go; if you use a different language, please advise why you chose it.

Instructions

To run program

$ go run .
Enter Roman Number: x 
10
x

To run program with roman number as argument

$ go run . x
10
x

To run tests

$ cd roman
$ go test -v

  === RUN   TestRomanToDecimal
  === RUN   TestRomanToDecimal/{"XXXIX"_'\x00'},_39
  === RUN   TestRomanToDecimal/{"CCXLVI"_'\x00'},_246
  === RUN   TestRomanToDecimal/{"DCCLXXXIX"_'\x00'},_789
  === RUN   TestRomanToDecimal/{"MMCDXXI"_'\x00'},_2421
  === RUN   TestRomanToDecimal/{""_'\x00'},_0
  === RUN   TestRomanToDecimal/{"_"_'\x00'},_0
  === RUN   TestRomanToDecimal/{"_V_"_'\x00'},_5
  === RUN   TestRomanToDecimal/{"U"_'\x00'},_0
  === RUN   TestRomanToDecimal/{"VU"_'\x00'},_0
  === RUN   TestRomanToDecimal/{"_MM_CDXXI_"_'\x00'},_2421
  === RUN   TestRomanToDecimal/{"___dcc___L__xxxIX_"_'\x00'},_789
  --- PASS: TestRomanToDecimal (0.00s)
      --- PASS: TestRomanToDecimal/{"XXXIX"_'\x00'},_39 (0.00s)
      --- PASS: TestRomanToDecimal/{"CCXLVI"_'\x00'},_246 (0.00s)
      --- PASS: TestRomanToDecimal/{"DCCLXXXIX"_'\x00'},_789 (0.00s)
      --- PASS: TestRomanToDecimal/{"MMCDXXI"_'\x00'},_2421 (0.00s)
      --- PASS: TestRomanToDecimal/{""_'\x00'},_0 (0.00s)
      --- PASS: TestRomanToDecimal/{"_"_'\x00'},_0 (0.00s)
      --- PASS: TestRomanToDecimal/{"_V_"_'\x00'},_5 (0.00s)
      --- PASS: TestRomanToDecimal/{"U"_'\x00'},_0 (0.00s)
      --- PASS: TestRomanToDecimal/{"VU"_'\x00'},_0 (0.00s)
      --- PASS: TestRomanToDecimal/{"_MM_CDXXI_"_'\x00'},_2421 (0.00s)
      --- PASS: TestRomanToDecimal/{"___dcc___L__xxxIX_"_'\x00'},_789 (0.00s)
  PASS
  ok      romannumeralchallenge/roman     0.291s

Reference links

• https://go.dev/doc/code

• https://medium.com/@kdnotes/golang-naming-rules-and-conventions-8efeecd23b68

• https://www.geeksforgeeks.org/fmt-scanln-function-in-golang-with-examples/

• https://go101.org/article/string.html

• https://en.wikipedia.org/wiki/Roman_numerals

• https://adrianwit.medium.com/abstract-class-reinvented-with-go-4a7326525034

• https://stackoverflow.com/questions/18152419/chaining-functions-in-go

• https://stackoverflow.com/questions/10105935/how-to-convert-an-int-value-to-string-in-go

• https://go.dev/doc/effective_go#embedding

• https://gobyexample.com/testing

• https://go.dev/blog/maps

• https://www.golangprograms.com/example-of-abstraction-using-interfaces-in-golang.html