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|
# frozen_string_literal: true
require 'rubygems'
require 'pathname'
require 'psych'
if ENV['COVERAGE']
require 'simplecov'
def require_do(resource)
require resource
yield if block_given?
rescue LoadError
nil
end
formatters = [SimpleCov::Formatter::HTMLFormatter]
require_do('simplecov-rcov') {
formatters << SimpleCov::Formatter::RcovFormatter
}
require_do('simplecov-vim/formatter') {
formatters << SimpleCov::Formatter::VimFormatter
}
require_do('simplecov-sublime-ruby-coverage') {
formatters << SimpleCov::Formatter::SublimeRubyCoverageFormatter
}
SimpleCov.start do
formatter SimpleCov::Formatter::MultiFormatter[*formatters]
end
end
file = Pathname.new(__FILE__).expand_path
path = file.parent
parent = path.parent
$:.unshift parent.join('lib')
module CaptureSubprocessIO
def _synchronize
yield
end
def capture_subprocess_io
_synchronize do
begin
require 'tempfile'
captured_stdout, captured_stderr = Tempfile.new('out'), Tempfile.new('err')
orig_stdout, orig_stderr = $stdout.dup, $stderr.dup
$stdout.reopen captured_stdout
$stderr.reopen captured_stderr
yield
$stdout.rewind
$stderr.rewind
return captured_stdout.read, captured_stderr.read
ensure
captured_stdout.unlink
captured_stderr.unlink
$stdout.reopen orig_stdout
$stderr.reopen orig_stderr
end
end
end
end
require 'diff-lcs'
module Diff::LCS::SpecHelper
def hello
'hello'
end
def hello_ary
%w(h e l l o)
end
def seq1
%w(a b c e h j l m n p)
end
def skipped_seq1
%w(a h n p)
end
def seq2
%w(b c d e f j k l m r s t)
end
def skipped_seq2
%w(d f k r s t)
end
def word_sequence
%w(abcd efgh ijkl mnopqrstuvwxyz)
end
def correct_lcs
%w(b c e j l m)
end
def correct_forward_diff
[
[
['-', 0, 'a']
],
[
['+', 2, 'd']
],
[
['-', 4, 'h'],
['+', 4, 'f']
],
[
['+', 6, 'k']
],
[
['-', 8, 'n'],
['-', 9, 'p'],
['+', 9, 'r'],
['+', 10, 's'],
['+', 11, 't']
]
]
end
def correct_backward_diff
[
[
['+', 0, 'a']
],
[
['-', 2, 'd']
],
[
['-', 4, 'f'],
['+', 4, 'h']
],
[
['-', 6, 'k']
],
[
['-', 9, 'r'],
['-', 10, 's'],
['+', 8, 'n'],
['-', 11, 't'],
['+', 9, 'p']
]
]
end
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
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
def change_diff(diff)
map_diffs(diff, Diff::LCS::Change)
end
def context_diff(diff)
map_diffs(diff, Diff::LCS::ContextChange)
end
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
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
def balanced_traversal(s1, s2, callback_type)
callback = __send__(callback_type)
Diff::LCS.traverse_balanced(s1, s2, callback)
callback
end
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
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
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)
p 'called #finished_b'
@done_b << [
event.old_element, event.old_position,
event.new_element, event.new_position
]
end
end
callbacks.reset
callbacks
end
def simple_callback_no_finishers
simple = simple_callback
class << simple
undef :finished_a
undef :finished_b
end
simple
end
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
def balanced_callback_no_change
balanced = balanced_callback
class << balanced
undef :change
end
balanced
end
module Matchers
extend RSpec::Matchers::DSL
matcher :be_nil_or_match_values do |ii, s1, s2|
match do |ee|
expect(ee).to(satisfy { |vee| vee.nil? || s1[ii] == s2[ee] })
end
end
matcher :correctly_map_sequence do |s1|
match do |actual|
actual.each_with_index { |ee, ii|
expect(ee).to be_nil_or_match_values(ii, s1, @s2)
}
end
chain :to_other_sequence do |s2|
@s2 = s2
end
end
end
end
RSpec.configure do |conf|
conf.include Diff::LCS::SpecHelper
conf.alias_it_should_behave_like_to :it_has_behavior, 'has behavior:'
conf.filter_run_excluding :broken => true
end
|