integration.BeforeTest can be run without leak-detection.

tests/integration/cluster.go

@@ -1288,16 +1288,8 @@ type ClusterV3 struct {
 // for each cluster member.
 func NewClusterV3(t testutil.TB, cfg *ClusterConfig) *ClusterV3 {
 	t.Helper()
-	testutil.SkipTestIfShortMode(t, "Cannot create clusters in --short tests")
 
-	wd, err := os.Getwd()
-	if err != nil {
-		t.Fatal(err)
-	}
-	if !strings.HasPrefix(wd, os.TempDir()) {
-		t.Errorf("Working directory '%s' expected to be in temp-dir ('%s')."+
-			"Have you executed integration.BeforeTest(t) ?", wd, os.TempDir())
-	}
+	assertInTestContext(t)
 
 	cfg.UseGRPC = true