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# -*- ruby encoding: utf-8 -*-
require 'spec_helper'
def h(v)
v.to_s.bytes.to_a.map { |e| "%02x" % e }.join
end
describe "Diff::LCS::Hunk" do
if String.method_defined?(:encoding)
let(:old_data) { ["Tu avec carté {count} itém has".encode('UTF-16LE')] }
let(:new_data) { ["Tu avec carte {count} item has".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 'should be able to produce a unified diff from the two pieces' do
expected =
(<<-EOD.encode('UTF-16LE').chomp)
@@ -1,2 +1,2 @@
-Tu avec carté {count} itém has
+Tu avec carte {count} item has
EOD
expect(hunk.diff(:unified).to_s == expected).to eql true
end
it 'should be able to produce a context diff from the two pieces' do
expected =
(<<-EOD.encode('UTF-16LE').chomp)
***************
*** 1,2 ****
!Tu avec carté {count} itém has
--- 1,2 ----
!Tu avec carte {count} item has
EOD
expect(hunk.diff(:context).to_s == expected).to eql true
end
it 'should be able to produce an old diff from the two pieces' do
expected =
(<<-EOD.encode('UTF-16LE').chomp)
1,2c1,2
< Tu avec carté {count} itém has
---
> Tu avec carte {count} item has
EOD
expect(hunk.diff(:old).to_s == expected).to eql true
end
it 'should be able to produce a reverse ed diff from the two pieces' do
expected =
(<<-EOD.encode('UTF-16LE').chomp)
c1,2
Tu avec carte {count} item has
.
EOD
expect(hunk.diff(:reverse_ed).to_s == expected).to eql true
end
context 'with empty first data set' do
let(:old_data) { [] }
it 'should be able to produce a unified diff' do
expected =
(<<-EOD.encode('UTF-16LE').chomp)
@@ -1 +1,2 @@
+Tu avec carte {count} item has
EOD
expect(hunk.diff(:unified).to_s == expected).to eql true
end
end
end
end
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