Class: Confire::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/confire/parser.rb

Overview

Parses the google test case

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Parser

Remember to set:

filename to read (will blow a ArgumentError if not set)
lines_per_test_case



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# File 'lib/confire/parser.rb', line 9

def initialize(options = {})
  @filename = options[:filename]
  @lines_per_test_case = options[:lines_per_test_case] || 1
  @logger = options[:logger]
end

Instance Attribute Details

#filename ⇒ Object

Returns the value of attribute filename.



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# File 'lib/confire/parser.rb', line 4

def filename
  @filename
end

#lines_per_test_case ⇒ Object

Returns the value of attribute lines_per_test_case.



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# File 'lib/confire/parser.rb', line 4

def lines_per_test_case
  @lines_per_test_case
end

Instance Method Details

#parse(test_case_processor, line_processor = nil) ⇒ Object

This will read a given test case and pass that into the test_case_processor.

A test case is defined as the number of lines_per_test_case
Can optionally pass in a line_processor that will process a line before adding it to the buffer.
Will stop reading after we hit the number of test cases defined in the file

Assumption: Number of test cases is defined in the first line



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# File 'lib/confire/parser.rb', line 20

def parse(test_case_processor, line_processor = nil)
  (raise ArgumentError.new('Missing input filename to parse')) unless @filename
  line_counter = -1
  test_cases_read = 0

  test_cases = 0
  line_buffer = []

  IO.foreach(@filename) do |line|
    line.strip!
    # read number of cases
    if line_counter == -1
      test_cases = line.to_i
      # if unable to parse or we get 0, blow up
      raise ArgumentError.new('Missing number of test cases on first line') if test_cases == 0
      line_counter = 0
    # process the test case
    elsif line_counter == (lines_per_test_case - 1)
      line = line_processor.call(line) if line_processor
      line_buffer << line
      test_cases_read += 1
      test_case_processor.call(line_buffer, test_cases_read)
      line_buffer = []
      line_counter = 0
      return if test_cases_read == test_cases
    # keep reading
    else
      line = line_processor.call(line) if line_processor
      line_buffer << line
      line_counter += 1
    end
  end
end