Ruby - Testing with RSpec and Minitest
You want to ensure your Ruby code handles empty strings correctly. Which test best applies Ruby's testing culture to check this?
def reverse_string(str) str.reverse end
You want to ensure your Ruby code handles empty strings correctly. Which test best applies Ruby's testing culture to check this?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand function behavior with empty string
Calling reverse on an empty string returns an empty string.Step 2: Choose assertion matching expected output
Test should expect '' (empty string), not nil, space, or false.Final Answer:
def test_reverse_empty assert_equal '', reverse_string('') end -> Option DQuick Check:
Empty string reversed is empty string [OK]
Quick Trick: Test expected output exactly, empty string reverses to empty string [OK]
Common Mistakes:
- Expecting nil instead of empty string
- Using space or false as expected result
- Not testing edge cases like empty input
Master "Testing with RSpec and Minitest" in Ruby
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