commit 6fd367a97c8653a2d734a38252c7d68d4b2ebaa7
author Bram Moolenaar <Bram@vim.org> Sat Mar 13 13:14:04 2021 +0100
committer Bram Moolenaar <Bram@vim.org> Sat Mar 13 13:14:04 2021 +0100
tree 4b52fc3527af8e939ba9fe3bff0acb81d61a6bb4
parent c80f647512b001fb6952ed10d076d56c3d4b84e0

patch 8.2.2592: code coverage could be improved

Problem:    Code coverage could be improved.
Solution:   Add a few more tests. (Dominique Pellé, closes #7957)

src/testdir/test_fileformat.vim

diff --git a/src/testdir/test_fileformat.vim b/src/testdir/test_fileformat.vim
index 09be258..07819dc 100644
--- a/src/testdir/test_fileformat.vim
+++ b/src/testdir/test_fileformat.vim
@@ -33,6 +33,15 @@
   bw!
 endfunc
 
+func Test_fileformat_nomodifiable()
+  new
+  setlocal nomodifiable
+
+  call assert_fails('set fileformat=latin1', 'E21:')
+
+  bw
+endfunc
+
 " Convert the contents of a file into a literal string
 func s:file2str(fname)
   let b = readfile(a:fname, 'B')