micropython: add micropython component

components/language/micropython/tests/basics/unary_op.py

@@ -0,0 +1,34 @@
+x = 1
+print(+x)
+print(-x)
+print(~x)
+
+print(not None)
+print(not False)
+print(not True)
+print(not 0)
+print(not 1)
+print(not -1)
+print(not ())
+print(not (1,))
+print(not [])
+print(not [1,])
+print(not {})
+print(not {1:1})
+
+# check user instance
+class A: pass
+print(not A())
+
+# check user instances derived from builtins
+class B(int): pass
+print(not B())
+print(True if B() else False)
+class C(list): pass
+print(not C())
+print(True if C() else False)
+# type doesn't define unary_op
+class D(type): pass
+d = D("foo", (), {})
+print(not d)
+print(True if d else False)