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Test Writing: Last Chars

Imported By: Geoffrey Challen
/ Version: 2021.5.0

Given 2 Strings, first and second, return a new String made of the first character of first and the last character of second. So "yo" and "kotlin" yields "yn". If either string is length 0, use '@' for its missing char.

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 lastChars(
first: String,
second: String,
): String {
return "" // You may need to remove this starter code
}