github.com/m3db/m3@v1.5.0/src/dbnode/encoding/proto/encoder_test.go (about)

     1  // Copyright (c) 2019 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 proto
    22  
    23  import (
    24  	"testing"
    25  	"time"
    26  
    27  	"github.com/m3db/m3/src/dbnode/namespace"
    28  	"github.com/m3db/m3/src/dbnode/ts"
    29  	"github.com/m3db/m3/src/x/context"
    30  	xtime "github.com/m3db/m3/src/x/time"
    31  
    32  	dpb "github.com/golang/protobuf/protoc-gen-go/descriptor"
    33  	"github.com/jhump/protoreflect/desc"
    34  	"github.com/stretchr/testify/require"
    35  )
    36  
    37  func TestCustomAndProtoFields(t *testing.T) {
    38  	testCases := []struct {
    39  		schema                  *desc.MessageDescriptor
    40  		expectedCustomFields    []customFieldState
    41  		expectedNonCustomFields []marshalledField
    42  	}{
    43  		{
    44  			schema: newVLMessageDescriptor(),
    45  			expectedCustomFields: []customFieldState{
    46  				// latitude
    47  				{
    48  					fieldNum:       1,
    49  					fieldType:      float64Field,
    50  					protoFieldType: dpb.FieldDescriptorProto_TYPE_DOUBLE,
    51  				},
    52  				// longitude
    53  				{
    54  					fieldNum:       2,
    55  					fieldType:      float64Field,
    56  					protoFieldType: dpb.FieldDescriptorProto_TYPE_DOUBLE,
    57  				},
    58  				// numTrips
    59  				{
    60  					fieldNum:       3,
    61  					fieldType:      signedInt64Field,
    62  					protoFieldType: dpb.FieldDescriptorProto_TYPE_INT64,
    63  				},
    64  				// deliveryID
    65  				{
    66  					fieldNum:       4,
    67  					fieldType:      bytesField,
    68  					protoFieldType: dpb.FieldDescriptorProto_TYPE_BYTES,
    69  				},
    70  			},
    71  			expectedNonCustomFields: []marshalledField{{fieldNum: 5}},
    72  		},
    73  	}
    74  
    75  	for _, tc := range testCases {
    76  		tszFields, nonCustomFields := customAndNonCustomFields(nil, nil, tc.schema)
    77  		require.Equal(t, tc.expectedCustomFields, tszFields)
    78  		require.Equal(t, tc.expectedNonCustomFields, nonCustomFields)
    79  	}
    80  }
    81  
    82  func TestClosedEncoderIsNotUsable(t *testing.T) {
    83  	enc := newTestEncoder(xtime.Now().Truncate(time.Second))
    84  	enc.Close()
    85  
    86  	err := enc.Encode(ts.Datapoint{}, xtime.Second, nil)
    87  	require.Equal(t, errEncoderClosed, err)
    88  
    89  	_, err = enc.LastEncoded()
    90  	require.Equal(t, errEncoderClosed, err)
    91  }
    92  
    93  func TestEncoderIsNotCorruptedByInvalidWrites(t *testing.T) {
    94  	ctx := context.NewBackground()
    95  	defer ctx.Close()
    96  
    97  	start := xtime.Now().Truncate(time.Second)
    98  	enc := newTestEncoder(start)
    99  	enc.SetSchema(namespace.GetTestSchemaDescr(testVLSchema))
   100  
   101  	vl := newVL(1.0, 2.0, 3, []byte("some-delivery-id"), nil)
   102  	vlBytes, err := vl.Marshal()
   103  	require.NoError(t, err)
   104  
   105  	dp := ts.Datapoint{TimestampNanos: start.Add(time.Second)}
   106  	err = enc.Encode(dp, xtime.Second, vlBytes)
   107  	require.NoError(t, err)
   108  
   109  	bytesBeforeBadWrite := getCurrEncoderBytes(ctx, t, enc)
   110  
   111  	dp = ts.Datapoint{TimestampNanos: start.Add(2 * time.Second)}
   112  	err = enc.Encode(dp, xtime.Second, []byte("not-valid-proto"))
   113  	require.Error(t, err)
   114  
   115  	bytesAfterBadWrite := getCurrEncoderBytes(ctx, t, enc)
   116  	// Ensure that the encoder detect that the protobuf message was invalid
   117  	// before writing any data.
   118  	require.Equal(t, bytesBeforeBadWrite, bytesAfterBadWrite)
   119  }
   120  
   121  func getCurrEncoderBytes(ctx context.Context, t *testing.T, enc *Encoder) []byte {
   122  	stream, ok := enc.Stream(ctx)
   123  	require.True(t, ok)
   124  
   125  	currSeg, err := stream.Segment()
   126  	require.NoError(t, err)
   127  
   128  	result := append([]byte(nil), currSeg.Head.Bytes()...)
   129  	if currSeg.Tail != nil {
   130  		result = append(result, currSeg.Tail.Bytes()...)
   131  	}
   132  	return result
   133  }