diff --git a/src/testdir/test_lambda.vim b/src/testdir/test_lambda.vim
index 7fdfb87..bc3d5ac 100644
--- a/src/testdir/test_lambda.vim
+++ b/src/testdir/test_lambda.vim
@@ -62,7 +62,7 @@
 function Test_lambda_fails()
   call assert_equal(3, {a, b -> a + b}(1, 2))
   call assert_fails('echo {a, a -> a + a}(1, 2)', 'E853:')
-  call assert_fails('echo {a, b -> a + b)}(1, 2)', 'E15:')
+  call assert_fails('echo {a, b -> a + b)}(1, 2)', 'E451:')
   echo assert_fails('echo 10->{a -> a + 2}', 'E107:')
 endfunc
 
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index c9d5024..93626d5 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -806,6 +806,12 @@
   call CheckDefFailure("let x = @", "E1002:")
   call CheckDefFailure("let x = @<", "E354:")
 
+  call CheckDefFailure("let x = [1, 2", "E697:")
+  call CheckDefFailure("let x = [notfound]", "E1001:")
+
+  call CheckDefFailure("let x = { -> 123) }", "E451:")
+  call CheckDefFailure("let x = 123->{x -> x + 5) }", "E451:")
+
   call CheckDefFailure("let x = &notexist", 'E113:')
   call CheckDefExecFailure("&grepprg = [343]", 'E1051:')
 
@@ -878,6 +884,7 @@
 
 func Test_expr7_trailing_fails()
   call CheckDefFailureList(['let l = [2]', 'l->{l -> add(l, 8)}'], 'E107')
+  call CheckDefFailureList(['let l = [2]', 'l->{l -> add(l, 8)} ()'], 'E274')
 endfunc
 
 func Test_expr_fails()