Update Go tests (#1562)

Add new metric that appeared in 1.22.5 and 1.21.12.
* Improve test output with `cmp.Diff`.

Signed-off-by: SuperQ <[email protected]>

Author: SuperQ

prometheus/collectors/go_collector_go121_test.go

@@ -63,6 +63,7 @@ func withAllMetrics() []string {
 		"go_godebug_non_default_behavior_multipartmaxheaders_events_total",
 		"go_godebug_non_default_behavior_multipartmaxparts_events_total",
 		"go_godebug_non_default_behavior_multipathtcp_events_total",
+		"go_godebug_non_default_behavior_netedns0_events_total",
 		"go_godebug_non_default_behavior_panicnil_events_total",
 		"go_godebug_non_default_behavior_randautoseed_events_total",
 		"go_godebug_non_default_behavior_tarinsecurepath_events_total",
@@ -158,6 +159,7 @@ func withDebugMetrics() []string {
 		"go_godebug_non_default_behavior_multipartmaxheaders_events_total",
 		"go_godebug_non_default_behavior_multipartmaxparts_events_total",
 		"go_godebug_non_default_behavior_multipathtcp_events_total",
+		"go_godebug_non_default_behavior_netedns0_events_total",
 		"go_godebug_non_default_behavior_panicnil_events_total",
 		"go_godebug_non_default_behavior_randautoseed_events_total",
 		"go_godebug_non_default_behavior_tarinsecurepath_events_total",

prometheus/collectors/go_collector_go122_test.go

@@ -66,6 +66,7 @@ func withAllMetrics() []string {
 		"go_godebug_non_default_behavior_multipartmaxheaders_events_total",
 		"go_godebug_non_default_behavior_multipartmaxparts_events_total",
 		"go_godebug_non_default_behavior_multipathtcp_events_total",
+		"go_godebug_non_default_behavior_netedns0_events_total",
 		"go_godebug_non_default_behavior_panicnil_events_total",
 		"go_godebug_non_default_behavior_randautoseed_events_total",
 		"go_godebug_non_default_behavior_tarinsecurepath_events_total",
@@ -176,6 +177,7 @@ func withDebugMetrics() []string {
 		"go_godebug_non_default_behavior_multipartmaxheaders_events_total",
 		"go_godebug_non_default_behavior_multipartmaxparts_events_total",
 		"go_godebug_non_default_behavior_multipathtcp_events_total",
+		"go_godebug_non_default_behavior_netedns0_events_total",
 		"go_godebug_non_default_behavior_panicnil_events_total",
 		"go_godebug_non_default_behavior_randautoseed_events_total",
 		"go_godebug_non_default_behavior_tarinsecurepath_events_total",

prometheus/collectors/go_collector_latest_test.go

@@ -20,11 +20,12 @@ import (
 	"encoding/json"
 	"log"
 	"net/http"
-	"reflect"
 	"regexp"
 	"sort"
 	"testing"
 
+	"github.com/google/go-cmp/cmp"
+
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 )
@@ -69,8 +70,8 @@ func TestWithGoCollectorMemStatsMetricsDisabled(t *testing.T) {
 		got = append(got, r.GetName())
 	}
 
-	if !reflect.DeepEqual(got, baseMetrics) {
-		t.Errorf("got %v, want %v", got, baseMetrics)
+	if diff := cmp.Diff(got, baseMetrics); diff != "" {
+		t.Errorf("missmatch (-want +got):\n%s", diff)
 	}
 }
 
@@ -127,8 +128,8 @@ func TestGoCollectorAllowList(t *testing.T) {
 				got = append(got, r.GetName())
 			}
 
-			if !reflect.DeepEqual(got, test.expected) {
-				t.Errorf("got %v, want %v", got, test.expected)
+			if diff := cmp.Diff(got, test.expected); diff != "" {
+				t.Errorf("missmatch (-want +got):\n%s", diff)
 			}
 		})
 	}
@@ -181,8 +182,8 @@ func TestGoCollectorDenyList(t *testing.T) {
 				got = append(got, r.GetName())
 			}
 
-			if !reflect.DeepEqual(got, test.expected) {
-				t.Errorf("got %v, want %v", got, test.expected)
+			if diff := cmp.Diff(got, test.expected); diff != "" {
+				t.Errorf("missmatch (-want +got):\n%s", diff)
 			}
 		})
 	}