fix diff of CJK(Chinese/Japanese/Korean) is broken on Ruby 1.8 (#14562)

Contributed by Jun NAITOH.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@12046 e93f8b46-1217-0410-a6f0-8f06a7374b81

4 files changed, 69 insertions, 0 deletions

diff --git a/test/fixtures/diffs/issue-13644-3.diff b/test/fixtures/diffs/issue-13644-3.diff
new file mode 100644
index 000000000..782b160ae
--- /dev/null
+++ b/test/fixtures/diffs/issue-13644-3.diff
@@ -0,0 +1,7 @@
+--- a.txt	2013-07-27 06:03:49.133257759 +0900
++++ b.txt	2013-07-27 06:03:58.791221118 +0900
+@@ -1,3 +1,3 @@
+ aaaa
+-日本記
++日本娘
+ bbbb
diff --git a/test/fixtures/diffs/issue-13644-4.diff b/test/fixtures/diffs/issue-13644-4.diff
new file mode 100644
index 000000000..6309a5b5a
--- /dev/null
+++ b/test/fixtures/diffs/issue-13644-4.diff
@@ -0,0 +1,7 @@
+--- a.txt	2013-07-27 04:20:45.973229414 +0900
++++ b.txt	2013-07-27 04:20:52.366228105 +0900
+@@ -1,3 +1,3 @@
+ aaaa
+-日本記
++日本誘
+ bbbb
diff --git a/test/fixtures/diffs/issue-13644-5.diff b/test/fixtures/diffs/issue-13644-5.diff
new file mode 100644
index 000000000..033d6ed25
--- /dev/null
+++ b/test/fixtures/diffs/issue-13644-5.diff
@@ -0,0 +1,7 @@
+--- a.txt	2013-07-27 05:52:11.415223830 +0900
++++ b.txt	2013-07-27 05:52:18.249190358 +0900
+@@ -1,3 +1,3 @@
+ aaaa
+-日本記ok
++日本誘ok
+ bbbb
diff --git a/test/unit/lib/redmine/unified_diff_test.rb b/test/unit/lib/redmine/unified_diff_test.rb
index 7e1ccbdd9..4dd5357db 100644
--- a/test/unit/lib/redmine/unified_diff_test.rb
+++ b/test/unit/lib/redmine/unified_diff_test.rb
@@ -308,6 +308,54 @@ DIFF
     end
   end
 
+  def test_offset_range_japanese_3
+    # UTF-8 The 1st byte differs.
+    ja1 = "\xe6\x97\xa5\xe6\x9c\xac<span>\xe8\xa8\x98</span>"
+    ja1.force_encoding('UTF-8') if ja1.respond_to?(:force_encoding)
+    ja2 = "\xe6\x97\xa5\xe6\x9c\xac<span>\xe5\xa8\x98</span>"
+    ja2.force_encoding('UTF-8') if ja2.respond_to?(:force_encoding)
+    with_settings :repositories_encodings => '' do
+      diff = Redmine::UnifiedDiff.new(
+               read_diff_fixture('issue-13644-3.diff'), :type => 'sbs')
+      assert_equal 1, diff.size
+      assert_equal 3, diff.first.size
+      assert_equal ja1, diff.first[1].html_line_left
+      assert_equal ja2, diff.first[1].html_line_right
+    end
+  end
+
+  def test_offset_range_japanese_4
+    # UTF-8 The 2nd byte differs. 
+    ja1 = "\xe6\x97\xa5\xe6\x9c\xac<span>\xe8\xa8\x98</span>"
+    ja1.force_encoding('UTF-8') if ja1.respond_to?(:force_encoding)
+    ja2 = "\xe6\x97\xa5\xe6\x9c\xac<span>\xe8\xaa\x98</span>"
+    ja2.force_encoding('UTF-8') if ja2.respond_to?(:force_encoding)
+    with_settings :repositories_encodings => '' do
+      diff = Redmine::UnifiedDiff.new(
+               read_diff_fixture('issue-13644-4.diff'), :type => 'sbs')
+      assert_equal 1, diff.size
+      assert_equal 3, diff.first.size
+      assert_equal ja1, diff.first[1].html_line_left
+      assert_equal ja2, diff.first[1].html_line_right
+    end
+  end
+
+  def test_offset_range_japanese_5
+    # UTF-8 The 2nd byte differs. 
+    ja1 = "\xe6\x97\xa5\xe6\x9c\xac<span>\xe8\xa8\x98</span>ok"
+    ja1.force_encoding('UTF-8') if ja1.respond_to?(:force_encoding)
+    ja2 = "\xe6\x97\xa5\xe6\x9c\xac<span>\xe8\xaa\x98</span>ok"
+    ja2.force_encoding('UTF-8') if ja2.respond_to?(:force_encoding)
+    with_settings :repositories_encodings => '' do
+      diff = Redmine::UnifiedDiff.new(
+               read_diff_fixture('issue-13644-5.diff'), :type => 'sbs')
+      assert_equal 1, diff.size
+      assert_equal 3, diff.first.size
+      assert_equal ja1, diff.first[1].html_line_left
+      assert_equal ja2, diff.first[1].html_line_right
+    end
+  end
+
   private
 
   def read_diff_fixture(filename)