github.com/m3db/m3@v1.5.1-0.20231129193456-75a402aa583b/src/query/api/v1/handler/prometheus/remote/test/write.go (about)

     1  // Copyright (c) 2018 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package test
    22  
    23  import (
    24  	"bytes"
    25  	"io"
    26  	"io/ioutil"
    27  	"time"
    28  
    29  	"github.com/m3db/m3/src/query/generated/proto/prompb"
    30  
    31  	"github.com/golang/protobuf/proto"
    32  	"github.com/golang/snappy"
    33  	"github.com/prometheus/common/model"
    34  	"github.com/stretchr/testify/require"
    35  )
    36  
    37  // GeneratePromWriteRequest generates a Prometheus remote
    38  // write request.
    39  func GeneratePromWriteRequest() *prompb.WriteRequest {
    40  	req := &prompb.WriteRequest{
    41  		Timeseries: []prompb.TimeSeries{
    42  			{
    43  				Labels: []prompb.Label{
    44  					{Name: []byte(model.MetricNameLabel), Value: []byte("first")},
    45  					{Name: []byte("foo"), Value: []byte("bar")},
    46  					{Name: []byte("biz"), Value: []byte("baz")},
    47  				},
    48  				Samples: []prompb.Sample{
    49  					{Value: 1.0, Timestamp: time.Now().UnixNano() / int64(time.Millisecond)},
    50  					{Value: 2.0, Timestamp: time.Now().UnixNano() / int64(time.Millisecond)},
    51  				},
    52  			},
    53  			{
    54  				Labels: []prompb.Label{
    55  					{Name: []byte(model.MetricNameLabel), Value: []byte("second")},
    56  					{Name: []byte("foo"), Value: []byte("qux")},
    57  					{Name: []byte("bar"), Value: []byte("baz")},
    58  				},
    59  				Samples: []prompb.Sample{
    60  					{Value: 3.0, Timestamp: time.Now().UnixNano() / int64(time.Millisecond)},
    61  					{Value: 4.0, Timestamp: time.Now().UnixNano() / int64(time.Millisecond)},
    62  				},
    63  			},
    64  		},
    65  	}
    66  	return req
    67  }
    68  
    69  // GeneratePromWriteRequestBody generates a Prometheus remote
    70  // write request body.
    71  func GeneratePromWriteRequestBody(
    72  	t require.TestingT,
    73  	req *prompb.WriteRequest,
    74  ) io.Reader {
    75  	return bytes.NewReader(GeneratePromWriteRequestBodyBytes(t, req))
    76  }
    77  
    78  // GeneratePromWriteRequestBodyBytes generates a Prometheus remote
    79  // write request body.
    80  func GeneratePromWriteRequestBodyBytes(
    81  	t require.TestingT,
    82  	req *prompb.WriteRequest,
    83  ) []byte {
    84  	data, err := proto.Marshal(req)
    85  	require.NoError(t, err)
    86  
    87  	compressed := snappy.Encode(nil, data)
    88  	return compressed
    89  }
    90  
    91  // ReadPromWriteRequestBody reads a Prometheus remote
    92  // write request body.
    93  func ReadPromWriteRequestBody(
    94  	t require.TestingT,
    95  	body io.Reader,
    96  ) *prompb.WriteRequest {
    97  	require.NotNil(t, body)
    98  
    99  	data, err := ioutil.ReadAll(body)
   100  	require.NoError(t, err)
   101  
   102  	decoded, err := snappy.Decode(nil, data)
   103  	require.NoError(t, err)
   104  
   105  	req := &prompb.WriteRequest{}
   106  	require.NoError(t, proto.Unmarshal(decoded, req))
   107  
   108  	return req
   109  }