diff --git a/src/testdir/test_blob.vim b/src/testdir/test_blob.vim
index 1feab34..964ed22 100644
--- a/src/testdir/test_blob.vim
+++ b/src/testdir/test_blob.vim
@@ -32,6 +32,7 @@
   call assert_fails('let b = 0z1.1')
   call assert_fails('let b = 0z.')
   call assert_fails('let b = 0z001122.')
+  call assert_fails('call get("", 1)', 'E896:')
 endfunc
 
 " assignment to a blob
@@ -182,6 +183,7 @@
   call assert_equal(0z00112233, b)
 
   call assert_fails('call add(b, [9])', 'E745:')
+  call assert_fails('call add("", 0x01)', 'E897:')
 endfunc
 
 func Test_blob_empty()
@@ -219,7 +221,7 @@
   call assert_fails("call remove(b, 5)", 'E979:')
   call assert_fails("call remove(b, 1, 5)", 'E979:')
   call assert_fails("call remove(b, 3, 2)", 'E979:')
-  call assert_fails("call remove(1, 0)", 'E712:')
+  call assert_fails("call remove(1, 0)", 'E896:')
   call assert_fails("call remove(b, b)", 'E974:')
 endfunc
 
@@ -255,7 +257,7 @@
   call assert_equal(2, index(0z11111111, 0x11, -2))
   call assert_equal(3, index(0z11110111, 0x11, -2))
 
-  call assert_fails('call index("asdf", 0)', 'E714:')
+  call assert_fails('call index("asdf", 0)', 'E897:')
 endfunc
 
 func Test_blob_insert()
diff --git a/src/testdir/test_listdict.vim b/src/testdir/test_listdict.vim
index 19f1373..6c90cbc 100644
--- a/src/testdir/test_listdict.vim
+++ b/src/testdir/test_listdict.vim
@@ -139,7 +139,7 @@
   call assert_fails("call remove(l, 5)", 'E684:')
   call assert_fails("call remove(l, 1, 5)", 'E684:')
   call assert_fails("call remove(l, 3, 2)", 'E16:')
-  call assert_fails("call remove(1, 0)", 'E712:')
+  call assert_fails("call remove(1, 0)", 'E896:')
   call assert_fails("call remove(l, l)", 'E745:')
 endfunc
 
@@ -596,6 +596,8 @@
   call assert_equal(['bar', 'BAR', 'Bar', 'Foo', 'FOO', 'foo', 'FOOBAR', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l), 1))
   call assert_equal(['bar', 'BAR', 'Bar', 'Foo', 'FOO', 'foo', 'FOOBAR', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l), 'i'))
   call assert_equal(['BAR', 'Bar', 'FOO', 'FOOBAR', 'Foo', 'bar', 'foo', -1, 0, 0, 0.22, 1.0e-15, 12, 18, 22, 255, 7, 9, [], {}], sort(copy(l)))
+
+  call assert_fails('call reverse("")', 'E898:')
 endfunc
 
 " splitting a string to a List