go,internal,io,mime: use slices and maps to clean tests

Replace reflect.DeepEqual with slices.Equal/maps.Equal, which is
much faster.

Change-Id: Id9cb550884da817da96befdeccfecb3325fb4414
GitHub-Last-Rev: 7d64d78feb86e3ea1af6c24ea6782cb85731bb52
GitHub-Pull-Request: golang/go#67612
Reviewed-on: https://go-review.googlesource.com/c/go/+/587819
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/internal/profile/proto_test.go b/src/internal/profile/proto_test.go
index 46c6d83063..4c09f7c47e 100644
--- a/src/internal/profile/proto_test.go
+++ b/src/internal/profile/proto_test.go
@@ -5,7 +5,7 @@
 package profile
 
 import (
-	"reflect"
+	"slices"
 	"testing"
 )
 
@@ -34,7 +34,7 @@ func TestPackedEncoding(t *testing.T) {
 		},
 	} {
 		source := &packedInts{tc.uint64s, tc.int64s}
-		if got, want := marshal(source), tc.encoded; !reflect.DeepEqual(got, want) {
+		if got, want := marshal(source), tc.encoded; !slices.Equal(got, want) {
 			t.Errorf("failed encode %d, got %v, want %v", i, got, want)
 		}
 
@@ -43,10 +43,10 @@ func TestPackedEncoding(t *testing.T) {
 			t.Errorf("failed decode %d: %v", i, err)
 			continue
 		}
-		if got, want := dest.uint64s, tc.uint64s; !reflect.DeepEqual(got, want) {
+		if got, want := dest.uint64s, tc.uint64s; !slices.Equal(got, want) {
 			t.Errorf("failed decode uint64s %d, got %v, want %v", i, got, want)
 		}
-		if got, want := dest.int64s, tc.int64s; !reflect.DeepEqual(got, want) {
+		if got, want := dest.int64s, tc.int64s; !slices.Equal(got, want) {
 			t.Errorf("failed decode int64s %d, got %v, want %v", i, got, want)
 		}
 	}