Added fuzzer

query/fuzz.go

@@ -0,0 +1,35 @@
+// Copyright 2020 Google Inc. All rights reserved.
+//
+// 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.
+
+package query
+
+// This file implements a fuzzer using go-fuzz.
+// More information about go-fuzz can be found here:
+// https://github.com/dvyukov/go-fuzz
+
+// To run the fuzzer locally, follow these steps:
+// 1) go get github.com/google/zoekt
+// 2) go get -u github.com/dvyukov/go-fuzz/go-fuzz
+// 3) go get -u github.com/dvyukov/go-fuzz/go-fuzz-build
+// 4) cd into dir of fuzz.go
+// 5) $GOPATH/bin/go-fuzz-build
+// 6) $GOPATH/bin/go-fuzz
+
+func Fuzz(data []byte) int {
+	_, err := Parse(string(data))
+	if err != nil {
+		return 0
+	}
+	return 1
+}