Class: Teresa::Parser::TAP

Inherits:
Generic
  • Object
show all
Defined in:
lib/teresa/parser/tap.rb

Overview

Implements Test Anything Protocol and Knock test output format.

Instance Method Summary collapse

Methods inherited from Generic

matches, matches?

Constructor Details

#initialize(string) ⇒ TAP

Returns a new instance of TAP.



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# File 'lib/teresa/parser/tap.rb', line 10

def initialize(string)
  @string  = string
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/teresa/parser/tap.rb', line 14

def parse
  scanner  = StringScanner.new(@string)
  version  = scanner.scan(/TAP version (\d+)\n/) ? scanner[1].to_i : 12
  maximum  = scanner.scan(/1\.\.(\d+)\n/) && scanner[1]
  expected = 0

  raise "TAP #{version} is not supported" unless version.between? 12, 13

  while scanner.scan_until(/^(not )?ok\b/)
    expected    += 1
    test         = Test.new
    test.state   = :failed if scanner[1]
    test.id      = scanner.scan(/ +(\d+)/) ? scanner[1].to_i : expected
    test.message = scanner.scan(/ +.+/).to_s.gsub(/^\s*-|-\s*$/, '').strip
    test.name    = test.message.gsub(/(\: FAILED)?(#.*)?$/, '')
    test.state   = :skipped if test.message =~ /# *(SKIP|TODO)/i
    expected     = test.id
    test.name    = "Test ##{test.id}" if test.name.empty?
    test.message = nil if test.message.empty?

    if version >= 13 and scanner.scan(/^([ \t]+)---\n$/)
      test.output = "meta data:\n\n\t---\n"
      prefix      = scanner[1]

      while scanner.scan(/^#{prefix}(.*)\n/)
        test.output << scanner[1]
        test.message = scanner[1][/message: *"?(.*)"?/, 1] if scanner[1].start_with? "message:"
      end

      test.output << "\n"
    end

    while scanner.scan(/^# ?(.*\n)/)
      test.output ||= ""
      test.output << scanner[1]
    end

    yield test
  end

  unless scanner.scan_until(/^Bail out!\b/)
    maximum ||= scanner.scan_until(/1\.\.(\d+)\n/) && scanner[1]
    expected.upto(maximum.to_i) { |i| yield Test.new(state: :failed, id: i, name: "Test ##{i}") }
  end
end