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# frozen_string_literal: true
require "spec_helper"
if String.method_defined?(:encoding)
require "diff/lcs/hunk"
describe Diff::LCS::Hunk do
let(:old_data) { ["Tu a un carté avec {count} itéms".encode("UTF-16LE")] }
let(:new_data) { ["Tu a un carte avec {count} items".encode("UTF-16LE")] }
let(:pieces) { Diff::LCS.diff old_data, new_data }
let(:hunk) { Diff::LCS::Hunk.new(old_data, new_data, pieces[0], 3, 0) }
it "produces a unified diff from the two pieces" do
expected = <<-EXPECTED.gsub(/^\s+/, "").encode("UTF-16LE").chomp
@@ -1 +1 @@
-Tu a un carté avec {count} itéms
+Tu a un carte avec {count} items
EXPECTED
expect(hunk.diff(:unified)).to eq(expected)
end
it "produces a unified diff from the two pieces (last entry)" do
expected = <<-EXPECTED.gsub(/^\s+/, "").encode("UTF-16LE").chomp
@@ -1 +1 @@
-Tu a un carté avec {count} itéms
+Tu a un carte avec {count} items
\\ No newline at end of file
EXPECTED
expect(hunk.diff(:unified, true)).to eq(expected)
end
it "produces a context diff from the two pieces" do
expected = <<-EXPECTED.gsub(/^\s+/, "").encode("UTF-16LE").chomp
***************
*** 1 ****
! Tu a un carté avec {count} itéms
--- 1 ----
! Tu a un carte avec {count} items
EXPECTED
expect(hunk.diff(:context)).to eq(expected)
end
it "produces an old diff from the two pieces" do
expected = <<-EXPECTED.gsub(/^ +/, "").encode("UTF-16LE").chomp
1c1
< Tu a un carté avec {count} itéms
---
> Tu a un carte avec {count} items
EXPECTED
expect(hunk.diff(:old)).to eq(expected)
end
it "produces a reverse ed diff from the two pieces" do
expected = <<-EXPECTED.gsub(/^ +/, "").encode("UTF-16LE").chomp
c1
Tu a un carte avec {count} items
.
EXPECTED
expect(hunk.diff(:reverse_ed)).to eq(expected)
end
context "with empty first data set" do
let(:old_data) { [] }
it "produces a unified diff" do
expected = <<-EXPECTED.gsub(/^\s+/, "").encode("UTF-16LE").chomp
@@ -1 +1,2 @@
+Tu a un carte avec {count} items
EXPECTED
expect(hunk.diff(:unified)).to eq(expected)
end
end
end
end
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