patch 8.2.0401: not enough test coverage for evalvars.cv8.2.0401

Problem:    Not enough test coverage for evalvars.c.
Solution:   Add more tests. (Yegappan Lakshmanan, closes #5804)

1 files changed, 29 insertions, 0 deletions

diff --git a/src/testdir/test_spell.vim b/src/testdir/test_spell.vim
index 0ebf33adf..5755146e0 100644
--- a/src/testdir/test_spell.vim
+++ b/src/testdir/test_spell.vim
@@ -298,6 +298,35 @@ func Test_spellsuggest_option_expr()
   bwipe!
 endfunc
 
+" Test for 'spellsuggest' expr errrors
+func Test_spellsuggest_expr_errors()
+  " 'spellsuggest'
+  func MySuggest()
+    return range(3)
+  endfunc
+  set spell spellsuggest=expr:MySuggest()
+  call assert_equal([], spellsuggest('baord', 3))
+
+  " Test for 'spellsuggest' expression returning a non-list value
+  func! MySuggest2()
+    return 'good'
+  endfunc
+  set spellsuggest=expr:MySuggest2()
+  call assert_equal([], spellsuggest('baord'))
+
+  " Test for 'spellsuggest' expression returning a list with dict values
+  func! MySuggest3()
+    return [[{}, {}]]
+  endfunc
+  set spellsuggest=expr:MySuggest3()
+  call assert_fails("call spellsuggest('baord')", 'E728:')
+
+  set nospell spellsuggest&
+  delfunc MySuggest
+  delfunc MySuggest2
+  delfunc MySuggest3
+endfunc
+
 func Test_spellinfo()
   new
   let runtime = substitute($VIMRUNTIME, '\\', '/', 'g')