micropython: add micropython component

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

@@ -0,0 +1,69 @@
+try:
+    import urandom as random
+except ImportError:
+    try:
+        import random
+    except ImportError:
+        print("SKIP")
+        raise SystemExit
+
+try:
+    random.randint
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+print("randrange")
+for i in range(50):
+    assert 0 <= random.randrange(4) < 4
+    assert 2 <= random.randrange(2, 6) < 6
+    assert -2 <= random.randrange(-2, 2) < 2
+    assert random.randrange(1, 9, 2) in (1, 3, 5, 7)
+    assert random.randrange(2, 1, -1) in (1, 2)
+
+# empty range
+try:
+    random.randrange(0)
+except ValueError:
+    print("ValueError")
+
+# empty range
+try:
+    random.randrange(2, 1)
+except ValueError:
+    print("ValueError")
+
+# zero step
+try:
+    random.randrange(2, 1, 0)
+except ValueError:
+    print("ValueError")
+
+# empty range
+try:
+    random.randrange(2, 1, 1)
+except ValueError:
+    print("ValueError")
+
+print("randint")
+for i in range(50):
+    assert 0 <= random.randint(0, 4) <= 4
+    assert 2 <= random.randint(2, 6) <= 6
+    assert -2 <= random.randint(-2, 2) <= 2
+
+# empty range
+try:
+    random.randint(2, 1)
+except ValueError:
+    print("ValueError")
+
+print("choice")
+lst = [1, 2, 5, 6]
+for i in range(50):
+    assert random.choice(lst) in lst
+
+# empty sequence
+try:
+    random.choice([])
+except IndexError:
+    print("IndexError")