github.com/hellobchain/third_party@v0.0.0-20230331131523-deb0478a2e52/prometheus/common/expfmt/fuzz.go (about)

     1  // Copyright 2014 The Prometheus Authors
     2  // Licensed under the Apache License, Version 2.0 (the "License");
     3  // you may not use this file except in compliance with the License.
     4  // You may obtain a copy of the License at
     5  //
     6  // http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  // Build only when actually fuzzing
    15  // +build gofuzz
    16  
    17  package expfmt
    18  
    19  import "bytes"
    20  
    21  // Fuzz text metric parser with with github.com/dvyukov/go-fuzz:
    22  //
    23  //     go-fuzz-build github.com/prometheus/common/expfmt
    24  //     go-fuzz -bin expfmt-fuzz.zip -workdir fuzz
    25  //
    26  // Further input samples should go in the folder fuzz/corpus.
    27  func Fuzz(in []byte) int {
    28  	parser := TextParser{}
    29  	_, err := parser.TextToMetricFamilies(bytes.NewReader(in))
    30  
    31  	if err != nil {
    32  		return 0
    33  	}
    34  
    35  	return 1
    36  }