commit 99fa721944dda9d07c53c907c33466728df5c271
author Bram Moolenaar <Bram@vim.org> Sun Apr 26 15:59:55 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Sun Apr 26 15:59:55 2020 +0200
tree 7ead4c06b56e21eb208ea1b9673cd463ba13f3c0
parent e297802d6ddbebbf36f9a2d01127c034fab88b3b

patch 8.2.0644: insufficient testing for invalid function arguments

Problem:    Insufficient testing for invalid function arguments.
Solution:   Add more tests. (Yegappan Lakshmanan, closes #5988)

src/testdir/test_writefile.vim

diff --git a/src/testdir/test_writefile.vim b/src/testdir/test_writefile.vim
index 497fa0b..58e438c 100644
--- a/src/testdir/test_writefile.vim
+++ b/src/testdir/test_writefile.vim
@@ -207,6 +207,12 @@
   close!
   enew | only
   call delete('Xfile')
+
+  call writefile(test_null_list(), 'Xfile')
+  call assert_false(filereadable('Xfile'))
+  call writefile(test_null_blob(), 'Xfile')
+  call assert_false(filereadable('Xfile'))
+  call assert_fails('call writefile([], "")', 'E482:')
 endfunc
 
 func Test_write_errors()
@@ -245,6 +251,12 @@
   close
 
   call delete('Xfile')
+
+  call writefile(test_null_list(), 'Xfile')
+  call assert_false(filereadable('Xfile'))
+  call writefile(test_null_blob(), 'Xfile')
+  call assert_false(filereadable('Xfile'))
+  call assert_fails('call writefile([], "")', 'E482:')
 endfunc
 
 " vim: shiftwidth=2 sts=2 expandtab