Class: QED::Script

Inherits:
Object
  • Object
show all
Defined in:
lib/qed/script.rb

Overview

Script

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file, output = nil) ⇒ Script

New Script



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# File 'lib/qed/script.rb', line 30

def initialize(file, output=nil)
  @file   = file
  @output = output || Reporter::Verbatim.new #(self)

  source = File.read(file)
  index  = source.rindex('---')

  @source = source[0...index]
  @helper = source[index+3...-1].strip
end

Instance Attribute Details

#file ⇒ Object (readonly)

def self.load(file, output=nil)

new(File.read(file), output)

end



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# File 'lib/qed/script.rb', line 26

def file
  @file
end

#output ⇒ Object (readonly)

Returns the value of attribute output.



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# File 'lib/qed/script.rb', line 27

def output
  @output
end

Instance Method Details

#context ⇒ Object

The run context.



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# File 'lib/qed/script.rb', line 122

def context
  @context ||= Context.new(self)
end

#run ⇒ Object

Run the script.



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# File 'lib/qed/script.rb', line 46

def run
  #steps = @source.split(/\n\s*$/)
  eval(@helper, context._binding, @file) if @helper
  steps.each do |step|
    output.report_step(step)
    case step
    when /^[=#]/
      output.report_header(step)
    when /^\S/
      output.report_comment(step)
    else
      run_step(step)
    end
  end
end

#run_step(step, &blk) ⇒ Object 



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# File 'lib/qed/script.rb', line 63

def run_step(step, &blk)
  context.before.call if context.before
  begin
    if blk
      blk.call #eval(step, context._binding)
    else
      eval(step, context._binding, @file) # TODO: would be nice to know file and lineno here
    end
    output.report_pass(step)
  rescue Assertion => error
    output.report_fail(step, error)
  rescue Exception => error
    output.report_error(step, error)
  ensure
    context.after.call if context.after
  end
end

#steps ⇒ Object

Cut-up script into steps.



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# File 'lib/qed/script.rb', line 82

def steps
  @steps ||= (
    code  = false
    str   = ''
    steps = []
    @source.each_line do |line|
      if /^\s*$/.match line
        str << line
      elsif /^[=]/.match line
        steps << str.chomp("\n")
        steps << line.chomp("\n")
        str = ''
        #str << line
        code = false
      elsif /^\S/.match line
        if code
          steps << str.chomp("\n")
          str = ''
          str << line
          code = false
        else
          str << line
        end
      else
        if code
          str << line
        else
          steps << str
          str = ''
          str << line
          code = true
        end
      end
    end
    steps << str
    steps
  )
end