RSpec-ExpectOutput.md

Pattern: Missing use of expect { ... }.to output

Issue: -

Description

Checks for opportunities to use expect { ... }.to output.

Examples

# bad
$stdout = StringIO.new
my_app.print_report
$stdout = STDOUT
expect($stdout.string).to eq('Hello World')

# good
expect { my_app.print_report }.to output('Hello World').to_stdout

Further Reading

• RSpec - RSpec/ExpectOutput
• http://www.rubydoc.info/gems/rubocop-rspec/RuboCop/Cop/RSpec/ExpectOutput