Module: Slack::Mixins::Proc

Defined in:
lib/slack.rb

Instance Method Summary collapse

Instance Method Details

#check_exception(exception = Exception) ⇒ Object

This method creates a new ‘Speck::Check` initialized to pass if the receiver can be executed without `exception` being raised, or fail if the receiver raises `exception` when raised.

The passed exception object will be ‘rescue`d from within the block, but any other exception raised by the block will not be caught.

Raises:

  • (Exception::NoEnvironment) 


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# File 'lib/slack.rb', line 65

def check_exception exception = Exception
  # TODO: Should we allow specks in the root environment? Could be useful
  #       for quick checks…
  raise Exception::NoEnvironment unless Speck.current
  
  file, line, _ = Kernel::caller.first.split(':')
  source = File.open(file).readlines[line.to_i - 1]
  source.strip!
  source = source.partition(".check_exception").first
  # TODO: Get rid of the "->{…}" around the resulting string.
  
  Speck::Check.new(->(){
    begin
      self.call
    rescue exception
      return true
    end
    return false
  }, source)
    .tap {|check| Speck.current.checks << check }
end