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Test Writing: At First

Imported By: Geoffrey Challen
/ Version: 2021.6.0

Given a String, return a String with length 2 made of its first 2 characters. If the string length is less than 2, use '@' for the missing characters.

Test Design Challenge

You're challenge is to write tests for this problem described above.

  • Provide a method named test that accepts no arguments and does not return a value.
  • If the implementation of the class described above is incorrect, your test method should throw an exception.
  • If it is correct, do not throw an exception.
  • You may want to use Kotlin's assert or check methods
fun atFirst(input: String): String {
return "" // You may need to remove this starter code
}