micropython: add micropython component

components/language/micropython/tests/basics/gc1.py

@@ -0,0 +1,34 @@
+# basic tests for gc module
+
+try:
+    import gc
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+print(gc.isenabled())
+gc.disable()
+print(gc.isenabled())
+gc.enable()
+print(gc.isenabled())
+
+gc.collect()
+
+if hasattr(gc, 'mem_free'):
+    # uPy has these extra functions
+    # just test they execute and return an int
+    assert type(gc.mem_free()) is int
+    assert type(gc.mem_alloc()) is int
+
+if hasattr(gc, 'threshold'):
+    # uPy has this extra function
+    # check execution and returns
+    assert(gc.threshold(1) is None)
+    assert(gc.threshold() == 0)
+    assert(gc.threshold(-1) is None)
+    assert(gc.threshold() == -1)
+
+    # Setting a low threshold should trigger collection at the list alloc
+    gc.threshold(1)
+    [[], []]
+    gc.threshold(-1)