micropython: add micropython component

components/language/micropython/tests/extmod/machine_signal.py

@@ -0,0 +1,40 @@
+# test machine.Signal class
+
+try:
+    try:
+        import umachine as machine
+    except ImportError:
+        import machine
+    machine.PinBase
+    machine.Signal
+except:
+    print("SKIP")
+    raise SystemExit
+
+
+class Pin(machine.PinBase):
+    def __init__(self):
+        self.v = 0
+
+    def value(self, v=None):
+        if v is None:
+            return self.v
+        else:
+            self.v = int(v)
+
+
+# test non-inverted
+p = Pin()
+s = machine.Signal(p)
+s.value(0)
+print(p.value(), s.value())
+s.value(1)
+print(p.value(), s.value())
+
+# test inverted, and using on/off methods
+p = Pin()
+s = machine.Signal(p, invert=True)
+s.off()
+print(p.value(), s.value())
+s.on()
+print(p.value(), s.value())