feat: (polling) add e2e test for new connector config update endpoint

pkg/testserver/api.go

@@ -40,6 +40,14 @@ func ConnectorUninstall(ctx context.Context, srv *Server, ver int, id string, re
 	return srv.Client().Do(ctx, http.MethodDelete, pathPrefix(ver, path), nil, res)
 }
 
+func ConnectorConfigUpdate(ctx context.Context, srv *Server, ver int, id string, reqBody any) error {
+	path := "connectors/" + id + "/config"
+	if ver == 2 {
+		return fmt.Errorf("connector update not supported by version %d", ver)
+	}
+	return srv.Client().Do(ctx, http.MethodPatch, pathPrefix(ver, path), reqBody, nil)
+}
+
 func ConnectorConfig(ctx context.Context, srv *Server, ver int, id string, res any) error {
 	path := "connectors/" + id + "/config"
 	if ver == 2 {

test/e2e/api_connectors_test.go

@@ -84,6 +84,37 @@ var _ = Context("Payments API Connectors", func() {
 		})
 	})
 
+	When("updating a connector config", func() {
+		var (
+			id           uuid.UUID
+			ver          int
+			connectorRes struct{ Data string }
+			connectorID  string
+		)
+		JustBeforeEach(func() {
+			id = uuid.New()
+			ver = 3
+
+			connectorConf := newConnectorConfigurationFn()(id)
+			err := ConnectorInstall(ctx, app.GetValue(), ver, connectorConf, &connectorRes)
+			Expect(err).To(BeNil())
+			connectorID = connectorRes.Data
+			blockTillWorkflowComplete(ctx, connectorID, "run-tasks-")
+		})
+
+		It("should be ok with v3", func() {
+			config := newConnectorConfigurationFn()(id)
+			config.PollingPeriod = "2m"
+			err := ConnectorConfigUpdate(ctx, app.GetValue(), ver, connectorID, &config)
+			Expect(err).To(BeNil())
+
+			getRes := struct{ Data ConnectorConf }{}
+			err = ConnectorConfig(ctx, app.GetValue(), ver, connectorID, &getRes)
+			Expect(err).To(BeNil())
+			Expect(getRes.Data).To(Equal(config))
+		})
+	})
+
 	When("uninstalling a connector", func() {
 		var (
 			id uuid.UUID