diff --git a/tests/micropython/incomplete_exc.py b/tests/micropython/incomplete_exc.py
new file mode 100644
index 0000000000..2aec9a47b3
--- /dev/null
+++ b/tests/micropython/incomplete_exc.py
@@ -0,0 +1,40 @@
+# Test raising an incomplete exception.
+
+
+class C(Exception):
+    def __init__(self):
+        raise self
+
+
+class C1(C):
+    pass
+
+
+class B:
+    pass
+
+
+class C2(B, Exception):
+    def __init__(self):
+        raise self
+
+
+class C3(Exception, B):
+    def __init__(self):
+        raise self
+
+
+class D(Exception):
+    pass
+
+
+class C4(D):
+    def __init__(self):
+        raise self
+
+
+for cls in C, C1, C2, C3, C4:
+    try:
+        cls()
+    except TypeError as e:
+        print("TypeError")
diff --git a/tests/micropython/incomplete_exc.py.exp b/tests/micropython/incomplete_exc.py.exp
new file mode 100644
index 0000000000..f2e9c12f7f
--- /dev/null
+++ b/tests/micropython/incomplete_exc.py.exp
@@ -0,0 +1,5 @@
+TypeError
+TypeError
+TypeError
+TypeError
+TypeError