Patch 8.0.0381
Problem:    Diff mode is not sufficiently tested.
Solution:   Add more diff mode tests. (Dominique Pelle, closes #1515)
Files:      src/testdir/test_diffmode.vim


*** ../vim-8.0.0380/src/testdir/test_diffmode.vim       2017-02-03 
23:16:24.349040487 +0100
--- src/testdir/test_diffmode.vim       2017-02-26 19:57:47.275393904 +0100
***************
*** 272,274 ****
--- 272,349 ----
    call delete('Xtest1')
    call delete('Xtest2')
  endfunc
+ 
+ func Test_diff_move_to()
+   new
+   call setline(1, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
+   diffthis
+   vnew
+   call setline(1, [1, '2x', 3, 4, 4, 5, '6x', 7, '8x', 9, '10x'])
+   diffthis
+   norm ]c
+   call assert_equal(2, line('.'))
+   norm 3]c
+   call assert_equal(9, line('.'))
+   norm 10]c
+   call assert_equal(11, line('.'))
+   norm [c
+   call assert_equal(9, line('.'))
+   norm 2[c
+   call assert_equal(5, line('.'))
+   norm 10[c
+   call assert_equal(2, line('.'))
+   %bwipe!
+ endfunc
+ 
+ func Test_diffpatch()
+   " The patch program on MS-Windows may fail or hang.
+   if !executable('patch') || !has('unix')
+     return
+   endif
+   new
+   insert
+ ***************
+ *** 1,3 ****
+   1
+ ! 2
+   3
+ --- 1,4 ----
+   1
+ ! 2x
+   3
+ + 4
+ .
+   saveas Xpatch
+   bwipe!
+   new
+   call assert_fails('diffpatch Xpatch', 'E816:')
+   call setline(1, ['1', '2', '3'])
+   diffpatch Xpatch
+   call assert_equal(['1', '2x', '3', '4'], getline(1, '$'))
+   call delete('Xpatch')
+   bwipe!
+ endfunc
+ 
+ func Test_diff_too_many_buffers()
+   for i in range(1, 8)
+     exe "new Xtest" . i
+     diffthis
+   endfor
+   new Xtest9
+   call assert_fails('diffthis', 'E96:')
+   %bwipe!
+ endfunc
+ 
+ func Test_diff_nomodifiable()
+   new
+   call setline(1, [1, 2, 3, 4])
+   setl nomodifiable
+   diffthis
+   vnew
+   call setline(1, ['1x', 2, 3, 3, 4])
+   diffthis
+   call assert_fails('norm dp', 'E793:')
+   setl nomodifiable
+   call assert_fails('norm do', 'E21:')
+   %bwipe!
+ endfunc
*** ../vim-8.0.0380/src/version.c       2017-02-26 19:40:55.869921651 +0100
--- src/version.c       2017-02-26 19:45:56.199986586 +0100
***************
*** 766,767 ****
--- 766,769 ----
  {   /* Add new patch number below this line */
+ /**/
+     381,
  /**/

-- 
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