github.com/bartle-stripe/trillian@v1.2.1/testonly/matchers/proto.go (about)

     1  // Copyright 2017 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package matchers
    16  
    17  import (
    18  	"fmt"
    19  
    20  	"github.com/golang/mock/gomock"
    21  	"github.com/golang/protobuf/proto"
    22  )
    23  
    24  type protoEqual struct {
    25  	msg proto.Message
    26  }
    27  
    28  // ProtoEqual returns a matcher that compares protobuf messages.
    29  func ProtoEqual(m proto.Message) gomock.Matcher {
    30  	return protoEqual{msg: m}
    31  }
    32  
    33  func (pe protoEqual) Matches(msg interface{}) bool {
    34  	m, ok := msg.(proto.Message)
    35  	if !ok {
    36  		return false
    37  	}
    38  	return proto.Equal(m, pe.msg)
    39  }
    40  
    41  func (pe protoEqual) String() string {
    42  	return fmt.Sprintf("is equal to %s", pe.msg)
    43  }