1 files changed, 59 insertions, 0 deletions
diff --git a/projects/g-api-py-api-common-protos/fuzz_api.py b/projects/g-api-py-api-common-protos/fuzz_api.py
new file mode 100644
index 00000000..8955ea30
--- /dev/null
+++ b/projects/g-api-py-api-common-protos/fuzz_api.py
@@ -0,0 +1,59 @@
+#!/usr/bin/python3
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import sys
+import atheris
+
+with atheris.instrument_imports(enable_loader_override=False):
+  import google.api.quota_pb2
+  import google.api.billing_pb2
+  import google.api.service_pb2
+  import google.api.routing_pb2
+  import google.api.log_pb2
+  from google.protobuf.message import DecodeError, EncodeError
+
+
+@atheris.instrument_func
+def protobuf_roundtrip(proto_target, input_bytes):
+  try:
+    proto_target.ParseFromString(input_bytes)
+  except DecodeError:
+    None
+
+  try:
+    proto_target.SerializeToString()
+  except EncodeError:
+    None
+
+
+@atheris.instrument_func
+def TestOneInput(input_bytes):
+  """Test ParseFromString with bytes string"""
+
+  protobuf_roundtrip(google.api.quota_pb2.QuotaLimit(), input_bytes)
+  protobuf_roundtrip(google.api.billing_pb2.Billing(), input_bytes)
+  protobuf_roundtrip(google.api.service_pb2.Service(), input_bytes)
+  protobuf_roundtrip(google.api.routing_pb2.RoutingRule(), input_bytes)
+  protobuf_roundtrip(google.api.log_pb2.LogDescriptor(), input_bytes)
+
+
+def main():
+  atheris.instrument_all()
+  atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
+  atheris.Fuzz()
+
+
+if __name__ == "__main__":
+  main()