Module: Diff::LCS::SpecHelper

Defined in:
lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb

Defined Under Namespace

Modules: Matchers

Instance Method Summary collapse

Instance Method Details

#balanced_callback ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 310

def balanced_callback
  cb = Object.new
  class << cb
    attr_reader :result

    def reset
      @result = []
    end

    def match(event)
      @result << ['=', event.old_position, event.new_position]
    end

    def discard_a(event)
      @result << ['<', event.old_position, event.new_position]
    end

    def discard_b(event)
      @result << ['>', event.old_position, event.new_position]
    end

    def change(event)
      @result << ['!', event.old_position, event.new_position]
    end
  end
  cb.reset
  cb
end

#balanced_callback_no_change ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 339

def balanced_callback_no_change
  balanced = balanced_callback
  class << balanced
    undef :change
  end
  balanced
end

#balanced_reverse(change_result) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 222

def balanced_reverse(change_result)
  new_result = []
  change_result.each do |line|
    line = [line[0], line[2], line[1]]
    case line[0]
    when '<'
      line[0] = '>'
    when '>'
      line[0] = '<'
    end
    new_result << line
  end
  new_result.sort_by { |line| [line[1], line[2]] }
end

#balanced_traversal(s1, s2, callback_type) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 216

def balanced_traversal(s1, s2, callback_type)
  callback = __send__(callback_type)
  Diff::LCS.traverse_balanced(s1, s2, callback)
  callback
end

#change_diff(diff) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 188

def change_diff(diff)
  map_diffs(diff, Diff::LCS::Change)
end

#context_diff(diff) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 192

def context_diff(diff)
  map_diffs(diff, Diff::LCS::ContextChange)
end

#correct_backward_diff ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 134

def correct_backward_diff
  [
    [
      ['+',  0, 'a']
    ],
    [
      ['-',  2, 'd']
    ],
    [
      ['-',  4, 'f'],
      ['+',  4, 'h']
    ],
    [
      ['-',  6, 'k']
    ],
    [
      ['-',  9, 'r'],
      ['+',  8, 'n'],
      ['-', 10, 's'],
      ['+',  9, 'p'],
      ['-', 11, 't']
    ]
  ]
end

#correct_forward_diff ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 109

def correct_forward_diff
  [
    [
      ['-',  0, 'a']
    ],
    [
      ['+',  2, 'd']
    ],
    [
      ['-',  4, 'h'],
      ['+',  4, 'f']
    ],
    [
      ['+',  6, 'k']
    ],
    [
      ['-',  8, 'n'],
      ['+',  9, 'r'],
      ['-',  9, 'p'],
      ['+', 10, 's'],
      ['+', 11, 't']
    ]
  ]
end

#correct_forward_sdiff ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 159

def correct_forward_sdiff
  [
    ['-', [0, 'a'], [0, nil]],
    ['=', [1, 'b'], [0, 'b']],
    ['=', [2, 'c'], [1, 'c']],
    ['+', [3, nil], [2, 'd']],
    ['=', [3, 'e'], [3, 'e']],
    ['!', [4, 'h'], [4, 'f']],
    ['=', [5, 'j'], [5, 'j']],
    ['+', [6, nil], [6, 'k']],
    ['=', [6, 'l'], [7, 'l']],
    ['=', [7, 'm'], [8, 'm']],
    ['!', [8, 'n'], [9, 'r']],
    ['!', [9, 'p'], [10, 's']],
    ['+', [10, nil], [11, 't']]
  ]
end

#correct_lcs ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 105

def correct_lcs
  %w(b c e j l m)
end

#format_diffs(diffs) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 196

def format_diffs(diffs)
  diffs.map { |e|
    if e.kind_of?(Array)
      e.map { |f| f.to_a.join }.join(', ')
    else
      e.to_a.join
    end
  }.join("\n")
end

#hello ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 77

def hello
  'hello'
end

#hello_ary ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 81

def hello_ary
  %w(h e l l o)
end

#map_diffs(diffs, klass = Diff::LCS::ContextChange) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 206

def map_diffs(diffs, klass = Diff::LCS::ContextChange)
  diffs.map do |chunks|
    if klass == Diff::LCS::ContextChange
      klass.from_a(chunks)
    else
      chunks.map { |changes| klass.from_a(changes) }
    end
  end
end

#map_to_no_change(change_result) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 237

def map_to_no_change(change_result)
  new_result = []
  change_result.each do |line|
    case line[0]
    when '!'
      new_result << ['<', line[1], line[2]]
      new_result << ['>', line[1] + 1, line[2]]
    else
      new_result << line
    end
  end
  new_result
end

#reverse_sdiff(forward_sdiff) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 177

def reverse_sdiff(forward_sdiff)
  forward_sdiff.map { |line|
    line[1], line[2] = line[2], line[1]
    case line[0]
    when '-' then line[0] = '+'
    when '+' then line[0] = '-'
    end
    line
  }
end

#seq1 ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 85

def seq1
  %w(a b c e h j l m n p)
end

#seq2 ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 93

def seq2
  %w(b c d e f j k l m r s t)
end

#simple_callback ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 251

def simple_callback
  callbacks = Object.new
  class << callbacks
    attr_reader :matched_a
    attr_reader :matched_b
    attr_reader :discards_a
    attr_reader :discards_b
    attr_reader :done_a
    attr_reader :done_b

    def reset
      @matched_a = []
      @matched_b = []
      @discards_a = []
      @discards_b = []
      @done_a = []
      @done_b = []
    end

    def match(event)
      @matched_a << event.old_element
      @matched_b << event.new_element
    end

    def discard_b(event)
      @discards_b << event.new_element
    end

    def discard_a(event)
      @discards_a << event.old_element
    end

    def finished_a(event)
      @done_a << [
        event.old_element, event.old_position,
        event.new_element, event.new_position
      ]
    end

    def finished_b(event)
      @done_b << [
        event.old_element, event.old_position,
        event.new_element, event.new_position
      ]
    end
  end
  callbacks.reset
  callbacks
end

#simple_callback_no_finishers ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 301

def simple_callback_no_finishers
  simple = simple_callback
  class << simple
    undef :finished_a
    undef :finished_b
  end
  simple
end

#skipped_seq1 ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 89

def skipped_seq1
  %w(a h n p)
end

#skipped_seq2 ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 97

def skipped_seq2
  %w(d f k r s t)
end

#word_sequence ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/diff-lcs-1.5.0/spec/spec_helper.rb', line 101

def word_sequence
  %w(abcd efgh ijkl mnopqrstuvwxyz)
end