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require 'diff/lcs'
require 'diff/lcs/hunk'
module RSpec
module Support
# @private
class HunkGenerator
def initialize(actual, expected)
@actual = actual
@expected = expected
end
def hunks
@file_length_difference = 0
@hunks ||= diffs.map do |piece|
build_hunk(piece)
end
end
private
def diffs
Diff::LCS.diff(expected_lines, actual_lines)
end
def expected_lines
@expected.split("\n").map! { |e| e.chomp }
end
def actual_lines
@actual.split("\n").map! { |e| e.chomp }
end
def build_hunk(piece)
Diff::LCS::Hunk.new(
expected_lines, actual_lines, piece, context_lines, @file_length_difference
).tap do |h|
@file_length_difference = h.file_length_difference
end
end
def context_lines
3
end
end
end
end
|
