1 files changed, 11 insertions, 12 deletions
diff --git a/vendor/github.com/prometheus/client_golang/prometheus/registry_test.go b/vendor/github.com/prometheus/client_golang/prometheus/registry_test.go
index d016a1560..9dacb6256 100644
--- a/vendor/github.com/prometheus/client_golang/prometheus/registry_test.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/registry_test.go
@@ -526,21 +526,20 @@ func TestRegisterWithOrGet(t *testing.T) {
 		},
 		[]string{"foo", "bar"},
 	)
-	var err error
-	if err = prometheus.Register(original); err != nil {
+	if err := prometheus.Register(original); err != nil {
 		t.Fatal(err)
 	}
-	if err = prometheus.Register(equalButNotSame); err == nil {
+	if err := prometheus.Register(equalButNotSame); err == nil {
 		t.Fatal("expected error when registringe equal collector")
 	}
-	if are, ok := err.(prometheus.AlreadyRegisteredError); ok {
-		if are.ExistingCollector != original {
-			t.Error("expected original collector but got something else")
-		}
-		if are.ExistingCollector == equalButNotSame {
-			t.Error("expected original callector but got new one")
-		}
-	} else {
-		t.Error("unexpected error:", err)
+	existing, err := prometheus.RegisterOrGet(equalButNotSame)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if existing != original {
+		t.Error("expected original collector but got something else")
+	}
+	if existing == equalButNotSame {
+		t.Error("expected original callector but got new one")
 	}
 }