From 35f8803250d5e12cbff79614cd9f3ef0a622066d Mon Sep 17 00:00:00 2001
From: flywind <43030857+xflywind@users.noreply.github.com>
Date: Wed, 11 Nov 2020 10:29:17 +0800
Subject: [PATCH] close #4318(add testcase for #4318) (#15904)

* close #4318(add testcase for #4318)

* Update tests/objects/t4318.nim

Co-authored-by: Juan Carlos <juancarlospaco@gmail.com>

Co-authored-by: Juan Carlos <juancarlospaco@gmail.com>
---
 tests/objects/t4318.nim | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 tests/objects/t4318.nim

diff --git a/tests/objects/t4318.nim b/tests/objects/t4318.nim
new file mode 100644
index 0000000000..34ff722f5c
--- /dev/null
+++ b/tests/objects/t4318.nim
@@ -0,0 +1,12 @@
+type
+  A = object of RootObj
+  B = object of A
+
+method identify(a:A) {.base.} = echo "A"
+method identify(b:B) = echo "B"
+
+var b: B
+
+doAssertRaises(ObjectAssignmentDefect):
+  var a: A = b
+  discard a