module SimpleCov

def usable?


also printing an appropriate warning
Checks whether we're on a proper version of ruby (1.9+) and returns false if this is not the case,
def usable?
  unless "1.9".respond_to?(:encoding)
    warn "WARNING: SimpleCov is activated, but you're not running Ruby 1.9+ - no coverage analysis will happen"
    return false
  end
  true
end