patch 7.4.1954

Problem:    No test for what 7.4.1948 fixes.
Solution:   Add a test. (Hirohito Higashi, closes #880)

src/Makefile

@@ -2031,6 +2031,7 @@ test_arglist \
 	test_help_tagjump \
 	test_history \
 	test_increment \
+	test_increment_dbcs \
 	test_join \
 	test_json \
 	test_langmap \

src/testdir/Make_all.mak

@@ -172,6 +172,7 @@ NEW_TESTS = test_arglist.res \
 	    test_hardcopy.res \
 	    test_history.res \
 	    test_increment.res \
+	    test_increment_dbcs.res \
 	    test_json.res \
 	    test_langmap.res \
 	    test_man.res \

src/testdir/test_increment_dbcs.vim

@@ -0,0 +1,30 @@
+" Tests for using Ctrl-A/Ctrl-X using DBCS.
+if !has('multi_byte')
+  finish
+endif
+set encoding=cp932
+scriptencoding cp932
+
+func SetUp()
+  new
+  set nrformats&
+endfunc
+
+func TearDown()
+  bwipe!
+endfunc
+
+func Test_increment_dbcs_1()
+  set nrformats+=alpha
+  call setline(1, ["<22>R1"])
+  exec "norm! 0\<C-A>"
+  call assert_equal(["<22>R2"], getline(1, '$'))
+  call assert_equal([0, 1, 3, 0], getpos('.'))
+
+  call setline(1, ["<22>`<60>a<EFBFBD>b0xDE<44>e"])
+  exec "norm! 0\<C-X>"
+  call assert_equal(["<22>`<60>a<EFBFBD>b0xDD<44>e"], getline(1, '$'))
+  call assert_equal([0, 1, 10, 0], getpos('.'))
+endfunc
+
+" vim: shiftwidth=2 expandtab

src/version.c

@@ -753,6 +753,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1954,
 /**/
     1953,
 /**/