assert_equal __([11, 12, 13]), result
# Files act like a collection of lines
- upcase_lines = File.open("example_file.txt") do |file|
- file.map { |line| line.strip.upcase }
+ File.open("example_file.txt") do |file|
+ upcase_lines = file.map { |line| line.strip.upcase }
+ assert_equal __(["THIS", "IS", "A", "TEST"]), upcase_lines
end
- assert_equal __(["THIS", "IS", "A", "TEST"]), upcase_lines
# NOTE: You can create your own collections that work with each,
# map, select, etc.