bluetooth: Basic Web Bluetooth Fuzzer

third_party/WebKit/Source/modules/bluetooth/testing/clusterfuzz/constraints.py

+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Module to get random numbers, strings, etc.
+
+   The values returned by the various functions can be replaced in
+   templates to generate test cases.
+"""
+
+import random
+
+
+def GetValidUUIDString():
+    """Constructs a valid UUID string.
+
+    Returns:
+      A string representating a valid UUID according to:
+      https://webbluetoothcg.github.io/web-bluetooth/#valid-uuid
+    """
+
+    return '\'{:08x}-{:04x}-{:04x}-{:04x}-{:012x}\''.format(
+        random.getrandbits(32),
+        random.getrandbits(16),
+        random.getrandbits(16),
+        random.getrandbits(16),
+        random.getrandbits(48))
+
+
+def GetRequestDeviceOptions():
+    """Returns an object used by navigator.bluetooth.requestDevice."""
+    # TODO(ortuno): Randomize the members, number of filters, services, etc.
+
+    return '{filters: [{services: [ %s ]}]}' % GetValidUUIDString()