Tasks
- Figure out your variant
- Use your
number
in list of students - Calculate
(number % 5) + 1
(result) - Result would be number of your variant
- Testing framework that you will use would be:
if result
1, 2, 3
- RSpec if result4, 5
- Minitest
- Use your
- Setup testing environment
- Cover file with tests "lib/variant#{result}"
- Complete Testing Kata(String Calculator)
####Testing Kata
- Try not to read ahead.
- Do one task at a time. The trick is to learn to work incrementally.
- Make sure you only test for correct inputs. there is no need to test for invalid inputs for this kata
String Calculator
- Create a simple String calculator with a method
sum(numbers)
- The method can take 0, 1 or 2 numbers, and will return their sum (for an empty string it will return 0) for example “” or “1” or “1,2”.
- Start with the simplest test case of an empty string and move to 1 and two numbers.
- Remember to solve things as simply as possible so that you force yourself to write tests you did not think about.
- Remember to refactor after each passing test.
- Allow the
sum
method to handle an unknown amount of numbers. - Allow the
sum
method to handle new lines between numbers (instead of commas).
- the following input is ok:
“1\n2,3”
(will equal 6). - the following input is NOT ok:
“1,\n”
(not need to prove it - just clarifying).
- Support different delimiters
- to change a delimiter, the beginning of the string will contain a separate line that looks like this:
“//[delimiter]\n[numbers…]”
for example“//;\n1;2”
should return three where the default delimiter is ‘;’ . - the first line is optional. all existing scenarios should still be supported.
- Calling
sum
with a negative number will throw an exception “negatives not allowed” - and the negative that was passed. if there are multiple negatives, show all of them in the exception message - Numbers bigger than 1000 should be ignored, so adding
2 + 1001 = 21
. - Delimiters can be of any length with the following format:
“//[delimiter]\n”
for example:“//[***]\n1***2***3”
should return6
. - Allow multiple delimiters like this:
“//[delim1][delim2]\n”
for example“//[*][%]\n1*2%3”
should return6
. - Make sure you can also handle multiple delimiters with length longer than one char