gproto

Gomega Matchers for Protobufs

gproto provides Gomega matchers to help write effective assertions against Protobufs.

Based on the EqualProto Matcher gomega issue, a Hyperledger Fabric review comment, and a equal_cmp_matcher.go Gist.

Installation

go get github.com/jt-nti/gproto

Usage

//...
import (
	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
	"github.com/jt-nti/gproto"
	"google.golang.org/protobuf/types/known/timestamppb"
)
//...
Context("when something something protobuf", func() {
	It("should match when the messages are equal", func() {
		actual := &timestamppb.Timestamp{
			Seconds: 1234567890,
		}
		expected := &timestamppb.Timestamp{
			Seconds: 1234567890,
		}
		Expect(actual).To(gproto.Equal(expected))
	})

	It("should not match when the messages are not equal", func() {
		actual := &timestamppb.Timestamp{
			Seconds: 1234567890,
		}
		expected := &timestamppb.Timestamp{
			Seconds: 9876543210,
		}
		Expect(actual).ToNot(gproto.Equal(expected))
	})
})
//...

TODO

• Add more tests for more complex messages
• Add more matchers based on the following packages:
  • https://pkg.go.dev/github.com/google/go-cmp/cmp
  • https://pkg.go.dev/google.golang.org/protobuf/testing/protocmp