diff --git a/tests/micropython/native_const.py b/tests/micropython/native_const.py
new file mode 100644
index 0000000000..37b491cf4a
--- /dev/null
+++ b/tests/micropython/native_const.py
@@ -0,0 +1,14 @@
+# test loading constants in native functions
+
+@micropython.native
+def f():
+    return b'bytes'
+print(f())
+
+@micropython.native
+def f():
+    @micropython.native
+    def g():
+        return 123
+    return g
+print(f()())
diff --git a/tests/micropython/native_const.py.exp b/tests/micropython/native_const.py.exp
new file mode 100644
index 0000000000..9002a0c2e5
--- /dev/null
+++ b/tests/micropython/native_const.py.exp
@@ -0,0 +1,2 @@
+b'bytes'
+123
diff --git a/tests/micropython/viper_const.py b/tests/micropython/viper_const.py
new file mode 100644
index 0000000000..5085ede90f
--- /dev/null
+++ b/tests/micropython/viper_const.py
@@ -0,0 +1,14 @@
+# test loading constants in viper functions
+
+@micropython.viper
+def f():
+    return b'bytes'
+print(f())
+
+@micropython.viper
+def f():
+    @micropython.viper
+    def g() -> int:
+        return 123
+    return g
+print(f()())
diff --git a/tests/micropython/viper_const.py.exp b/tests/micropython/viper_const.py.exp
new file mode 100644
index 0000000000..9002a0c2e5
--- /dev/null
+++ b/tests/micropython/viper_const.py.exp
@@ -0,0 +1,2 @@
+b'bytes'
+123
diff --git a/tests/micropython/viper_const_intbig.py b/tests/micropython/viper_const_intbig.py
new file mode 100644
index 0000000000..6b44973880
--- /dev/null
+++ b/tests/micropython/viper_const_intbig.py
@@ -0,0 +1,7 @@
+# check loading constants
+
+@micropython.viper
+def f():
+    return 123456789012345678901234567890
+
+print(f())
diff --git a/tests/micropython/viper_const_intbig.py.exp b/tests/micropython/viper_const_intbig.py.exp
new file mode 100644
index 0000000000..1d52d220f8
--- /dev/null
+++ b/tests/micropython/viper_const_intbig.py.exp
@@ -0,0 +1 @@
+123456789012345678901234567890