1 files changed, 79 insertions, 0 deletions
diff --git a/projects/g-cloud-logging-py/fuzz_entries.py b/projects/g-cloud-logging-py/fuzz_entries.py
new file mode 100644
index 00000000..388f3fbb
--- /dev/null
+++ b/projects/g-cloud-logging-py/fuzz_entries.py
@@ -0,0 +1,79 @@
+#!/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 atheris
+import sys
+with atheris.instrument_imports():
+    import google.cloud.logging_v2.entries as entries
+    from google.cloud.logging_v2.client import Client
+    from google.cloud.logging_v2.resource import Resource
+
+def create_dummy_log_entry(fdp):
+    return entries.LogEntry(
+        log_name=fdp.ConsumeString(20),
+        labels={
+            fdp.ConsumeString(10):fdp.ConsumeString(20),
+            fdp.ConsumeString(10):fdp.ConsumeString(20)
+        },
+        insert_id=fdp.ConsumeString(20),
+        timestamp=fdp.ConsumeString(20),
+        resource=Resource(type="global", labels={}),
+        trace=fdp.ConsumeString(20),
+        span_id=fdp.ConsumeString(20),
+        trace_sampled=fdp.ConsumeBool(),
+        source_location=LogEntrySourceLocation(
+            file=fdp.ConsumeString(20),
+            line=fdp.ConsumeString(20),
+            function=fdp.ConsumeString(20)
+        ),
+        operation=LogEntryOperation(
+            id=fdp.ConsumeString(20),
+            producer=fdp.ConsumeString(20),
+            first=fdp.ConsumeBool(),
+            last=fdp.ConsumeBool()
+        )
+    )
+
+def TestInput(data):
+    if len(data) < 1:
+       return
+
+    fdp = atheris.FuzzedDataProvider(data)
+
+    try:
+        entries._int_or_none(fdp.ConsumeInt(100))
+        entries.logger_name_from_path(fdp.ConsumeString(100))
+        entries.logger_name_from_path(fdp.ConsumeString(100),fdp.ConsumeString(50))
+
+        log_entry = create_dummy_log_entry(fdp)
+        log_entry.to_api_repr()
+
+        TextEntry(log_entry).to_api_repr()
+        StructEntry(log_entry).to_api_repr()
+        
+        protobuf_entry = ProtobufEntry(log_entry)
+        protobuf_entry.payload_pb()
+        protobuf_entry.payload_json()
+        protobuf_entry.to_api_repr()
+    except ValueError as e:
+        if "did not match expected pattern" not in str(e):
+            raise e
+
+def main():
+    atheris.Setup(sys.argv, TestInput, enable_python_coverage=True)
+    atheris.Fuzz()
+
+if __name__ == "__main__":
+    main()