add user payment test

src/tests/userPayment.spec.ts

@@ -0,0 +1,18 @@
+import { defaultInvoiceExpiry } from '../services/storage/paymentStorage.js'
+import { runSanityCheck, safelySetUserBalance, TestBase } from './testBase.js'
+export const ignore = false
+export const dev = false
+
+export default async (T: TestBase) => {
+    await safelySetUserBalance(T, T.user1, 2000)
+    await testSuccessfulUserPaymentToExternalNode(T)
+    await testSuccessfulUserPaymentToExternalNode(T)
+    await runSanityCheck(T)
+}
+
+const testSuccessfulUserPaymentToExternalNode = async (T: TestBase) => {
+    T.d("starting testSuccessfulUserPaymentToExternalNode")
+    const invoice = await T.externalAccessToOtherLnd.NewInvoice(500, "test", defaultInvoiceExpiry)
+    const payment = await T.main.appUserManager.PayInvoice({ app_id: T.user1.appId, user_id: T.user1.userId, app_user_id: T.user1.appUserIdentifier }, { invoice: invoice.payRequest, amount: 0 })
+    T.d("paid 500 sats invoice from user1 to external node")
+}