commit 9d8d0b5c644ea53364d04403740b3f23e57c1497
author Bram Moolenaar <Bram@vim.org> Fri Apr 24 22:47:31 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Fri Apr 24 22:47:31 2020 +0200
tree 615f9b058821039f8ae1c2cba3f3837500ecc42b
parent 92c461ef1b3b58c7dd4835bc881769f0f84e8ad0

patch 8.2.0633: crash when using null partial in filter()

Problem:    Crash when using null partial in filter().
Solution:   Fix crash.  Add more tests. (Yegappan Lakshmanan, closes #5976)

src/testdir/test_blob.vim

diff --git a/src/testdir/test_blob.vim b/src/testdir/test_blob.vim
index 4b6774f..3c15101 100644
--- a/src/testdir/test_blob.vim
+++ b/src/testdir/test_blob.vim
@@ -142,6 +142,7 @@
   let b2 = b1[:]
   call assert_true(b1 == b2)
   call assert_false(b1 is b2)
+  call assert_true(b1 isnot b2)
 
   call assert_fails('let x = b1 > b2')
   call assert_fails('let x = b1 < b2')