In some tests, replace reflection with yaml compare.

api/resource/factory_test.go

@@ -4,9 +4,10 @@
 package resource_test
 
 import (
-	"reflect"
+	"fmt"
 	"testing"
 
+	"github.com/stretchr/testify/assert"
 	"sigs.k8s.io/kustomize/api/filesys"
 	"sigs.k8s.io/kustomize/api/loader"
 	. "sigs.k8s.io/kustomize/api/resource"
@@ -357,21 +358,22 @@ kind: List
 	}
 	for _, test := range tests {
 		rs, err := factory.SliceFromPatches(ldr, test.input)
-		if test.expectedErr && err == nil {
-			t.Fatalf("%v: should return error", test.name)
-		}
-		if !test.expectedErr && err != nil {
-			t.Fatalf("%v: unexpected error: %s", test.name, err)
+		if err != nil {
+			assert.True(t, test.expectedErr,
+				fmt.Sprintf("in test %s, got unexpected error: %v", test.name, err))
+			continue
 		}
+		assert.False(t, test.expectedErr, "expected no error")
 		if len(rs) != len(test.expectedOut) {
 			t.Fatalf("%s: length mismatch %d != %d",
 				test.name, len(rs), len(test.expectedOut))
 		}
 		for i := range rs {
-			if !reflect.DeepEqual(test.expectedOut[i], rs[i]) {
-				t.Fatalf("%s: Got: %v\nexpected:%v",
-					test.name, test.expectedOut[i], rs[i])
-			}
+			expYaml, err := test.expectedOut[i].AsYAML()
+			assert.NoError(t, err)
+			actYaml, err := rs[i].AsYAML()
+			assert.NoError(t, err)
+			assert.Equal(t, expYaml, actYaml)
 		}
 	}
 }

api/resource/resource.go

@@ -5,6 +5,7 @@
 package resource
 
 import (
+	"fmt"
 	"reflect"
 	"strings"
 
@@ -156,9 +157,25 @@ func (r *Resource) copyOtherFields(other *Resource) {
 	r.nameSuffixes = copyStringSlice(other.nameSuffixes)
 }
 
-func (r *Resource) Equals(o *Resource) bool {
-	return r.ReferencesEqual(o) &&
-		reflect.DeepEqual(r.kunStr, o.kunStr)
+func (r *Resource) ErrIfNotEquals(o *Resource) error {
+	meYaml, err := r.AsYAML()
+	if err != nil {
+		return err
+	}
+	otherYaml, err := o.AsYAML()
+	if err != nil {
+		return err
+	}
+	if !r.ReferencesEqual(o) {
+		return fmt.Errorf("references unequal")
+	}
+	if string(meYaml) != string(otherYaml) {
+		return fmt.Errorf("---  self:\n"+
+			"%s\n"+
+			"--- other:\n"+
+			"%s\n", meYaml, otherYaml)
+	}
+	return nil
 }
 
 func (r *Resource) ReferencesEqual(o *Resource) bool {