added some testing tools and fixed an intermittent failure in the two…

… way json test cases

go.mod

@@ -2,4 +2,7 @@ module github.com/linkedin/goavro/v2
 
 go 1.12
 
-require github.com/golang/snappy v0.0.1
+require (
+	github.com/golang/snappy v0.0.1
+	github.com/stretchr/testify v1.7.5
+)

go.sum

@@ -1,2 +1,16 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.5 h1:s5PTfem8p8EbKQOctVV53k6jCJt3UX4IEJzwh+C324Q=
+github.com/stretchr/testify v1.7.5/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

text_test.go

@@ -11,9 +11,12 @@ package goavro
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"math"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func testTextDecodeFail(t *testing.T, schema string, buf []byte, errorMessage string) {
@@ -87,14 +90,29 @@ func testNativeToTextualJsonPass(t *testing.T, schema string, datum interface{},
 	}
 	toTextualAndCompare(t, schema, datum, encoded, codec)
 }
-func toTextualAndCompare(t *testing.T, schema string, datum interface{}, encoded []byte, codec *Codec) {
+
+func toTextualAndCompare(t *testing.T, schema string, datum interface{}, expected []byte, codec *Codec) {
 	t.Helper()
 	decoded, err := codec.TextualFromNative(nil, datum)
 	if err != nil {
 		t.Fatalf("schema: %s; %s", schema, err)
 	}
-	if !bytes.Equal(decoded, encoded) {
-		t.Errorf("GOT: %v; WANT: %v", string(decoded), string(encoded))
+
+	// do extra stuff to to the challenge equality of maps
+	var want interface{}
+
+	if err := json.Unmarshal(expected, &want); err != nil {
+		t.Errorf("Could not unmarshal the expected data into a go struct:%#v:", string(expected))
+	}
+
+	var got interface{}
+
+	if err := json.Unmarshal(decoded, &got); err != nil {
+		t.Errorf("Could not unmarshal the received data into a go struct:%#v:", string(decoded))
+	}
+
+	if !assert.Equal(t, want, got) {
+		t.Errorf("GOT: %v; WANT: %v", string(decoded), string(expected))
 	}
 }