micropython: add micropython component

components/language/micropython/tests/import/builtin_import.py

@@ -0,0 +1,22 @@
+# test calling builtin import function
+
+# basic test
+__import__("builtins")
+
+# first arg should be a string
+try:
+    __import__(1)
+except TypeError:
+    print("TypeError")
+
+# module name should not be empty
+try:
+    __import__("")
+except ValueError:
+    print("ValueError")
+
+# level argument should be non-negative
+try:
+    __import__("xyz", None, None, None, -1)
+except ValueError:
+    print("ValueError")