优化结构

internal/biz/integration/integration_config_communication_test.go

@@ -96,3 +96,14 @@ func TestIntegrationConfigTestDoesNotPersistCandidate(t *testing.T) {
 		t.Fatalf("tested values = %#v", values)
 	}
 }
+
+func TestIntegrationConfigRejectsJSONNull(t *testing.T) {
+	repo := &integrationConfigRepoTestDouble{}
+	usecase := NewIntegrationConfigUsecase(repo, &integrationConnectionTesterDouble{})
+	if err := usecase.Save(context.Background(), &IntegrationConfig{Kind: IntegrationKindMQ, Provider: "emqx", Values: json.RawMessage("null")}); err == nil {
+		t.Fatal("Save() accepted JSON null as an object")
+	}
+	if err := usecase.Test(context.Background(), &IntegrationConfig{Kind: IntegrationKindMQ, Provider: "emqx", Values: json.RawMessage("null")}); err == nil {
+		t.Fatal("Test() accepted JSON null as an object")
+	}
+}