patch 8.2.0982: insufficient testing for reading/writing filesv8.2.0982

Problem:    Insufficient testing for reading/writing files.
Solution:   Add more tests. (Yegappan Lakshmanan, closes #6257)
            Add "ui_delay" to test_override() and use it for the CTRL-O test.

1 files changed, 53 insertions, 0 deletions

diff --git a/src/testdir/test_autocmd.vim b/src/testdir/test_autocmd.vim
index cd3559e1b..ffeaecac0 100644
--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
@@ -2526,4 +2526,57 @@ func Test_autocmd_sigusr1()
   unlet g:sigusr1_passed
 endfunc
 
+" Test for BufReadPre autocmd deleting the file
+func Test_BufReadPre_delfile()
+  augroup TestAuCmd
+    au!
+    autocmd BufReadPre Xfile call delete('Xfile')
+  augroup END
+  call writefile([], 'Xfile')
+  call assert_fails('new Xfile', 'E200:')
+  call assert_equal('Xfile', @%)
+  call assert_equal(1, &readonly)
+  call delete('Xfile')
+  augroup TestAuCmd
+    au!
+  augroup END
+  close!
+endfunc
+
+" Test for BufReadPre autocmd changing the current buffer
+func Test_BufReadPre_changebuf()
+  augroup TestAuCmd
+    au!
+    autocmd BufReadPre Xfile edit Xsomeotherfile
+  augroup END
+  call writefile([], 'Xfile')
+  call assert_fails('new Xfile', 'E201:')
+  call assert_equal('Xsomeotherfile', @%)
+  call assert_equal(1, &readonly)
+  call delete('Xfile')
+  augroup TestAuCmd
+    au!
+  augroup END
+  close!
+endfunc
+
+" Test for BufWipeouti autocmd changing the current buffer when reading a file
+" in an empty buffer with 'f' flag in 'cpo'
+func Test_BufDelete_changebuf()
+  new
+  augroup TestAuCmd
+    au!
+    autocmd BufWipeout * let bufnr = bufadd('somefile') | exe "b " .. bufnr
+  augroup END
+  let save_cpo = &cpo
+  set cpo+=f
+  call assert_fails('r Xfile', 'E484:')
+  call assert_equal('somefile', @%)
+  let &cpo = save_cpo
+  augroup TestAuCmd
+    au!
+  augroup END
+  close!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab