Use slices.Equal available in Go 1.21

jsontext/decode_test.go

@@ -12,6 +12,7 @@ import (
 	"net"
 	"path"
 	"reflect"
+	"slices"
 	"strings"
 	"testing"
 	"testing/iotest"
@@ -65,7 +66,7 @@ func testDecoder(t *testing.T, where jsontest.CasePos, typeName string, td coder
 		if !equalTokens(tokens, td.tokens) {
 			t.Fatalf("%s: tokens mismatch:\ngot  %v\nwant %v", where, tokens, td.tokens)
 		}
-		if !reflect.DeepEqual(pointers, td.pointers) {
+		if !slices.Equal(pointers, td.pointers) {
 			t.Fatalf("%s: pointers mismatch:\ngot  %q\nwant %q", where, pointers, td.pointers)
 		}
 	case "Value":

jsontext/encode_test.go

@@ -10,6 +10,7 @@ import (
 	"io"
 	"path"
 	"reflect"
+	"slices"
 	"testing"
 
 	"github.com/go-json-experiment/json/internal/jsonflags"
@@ -57,7 +58,7 @@ func testEncoder(t *testing.T, where jsontest.CasePos, formatName, typeName stri
 				pointers = append(pointers, enc.StackPointer())
 			}
 		}
-		if !reflect.DeepEqual(pointers, td.pointers) {
+		if !slices.Equal(pointers, td.pointers) {
 			t.Fatalf("%s: pointers mismatch:\ngot  %q\nwant %q", where, pointers, td.pointers)
 		}
 	case "Value":

jsontext/state_test.go

@@ -184,7 +184,7 @@ func TestStateMachine(t *testing.T) {
 						got = append(got, e.Length())
 					}
 					want := []int64(op)
-					if !reflect.DeepEqual(got, want) {
+					if !slices.Equal(got, want) {
 						t.Fatalf("%s: stack lengths mismatch:\ngot  %v\nwant %v", sequence, got, want)
 					}
 				case appendToken:
@@ -336,7 +336,7 @@ func TestObjectNamespace(t *testing.T) {
 			for i := range ns.length() {
 				gotNames = append(gotNames, string(ns.getUnquoted(i)))
 			}
-			if !reflect.DeepEqual(gotNames, wantNames) {
+			if !slices.Equal(gotNames, wantNames) {
 				t.Fatalf("%d: objectNamespace = {%v}, want {%v}", i, strings.Join(gotNames, " "), strings.Join(wantNames, " "))
 			}
 		}