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array_sum_elements_spec.rb

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describe "array_sum_elements.rb" do

it "should output '151'" , points: 1 do

sum_elements_file = "array_sum_elements.rb"

file_contents = File.read(sum_elements_file)

File.foreach(sum_elements_file).with_index do |line, line_num|

if line.include?("p") || line.include?("puts")

expect(line).to_not match(/151/),

"Expected 'array_sum_elements.rb' to NOT literally print '151', but did anyway."

end

end

# expect { require_relative '../../array_sum_elements' }.to output(/151\n/).to_stdout

output = with_captured_stdout { require_relative('../../array_sum_elements')}

output = "empty" if output.empty?

expect(output.match?(/151\n/i)).to be(true),

"Expected output to be '151', but was #{output}."

end

end

def with_captured_stdout

original_stdout = $stdout # capture previous value of $stdout

$stdout = StringIO.new # assign a string buffer to $stdout

yield # perform the body of the user code

$stdout.string # return the contents of the string buffer

ensure

$stdout = original_stdout # restore $stdout to its previous value

end