itest: fix test testListPayments

lntemp/harness.go

@@ -294,6 +294,9 @@ func (h *HarnessTest) resetStandbyNodes(t *testing.T) {
 		// config for the coming test. This will also inherit the
 		// test's running context.
 		h.RestartNodeWithExtraArgs(hn, hn.Cfg.OriginalExtraArgs)
+
+		// Update the node's internal state.
+		hn.UpdateState()
 	}
 }
 
@@ -405,9 +408,6 @@ func (h *HarnessTest) cleanupStandbyNode(hn *node.HarnessNode) {
 	// Delete all payments made from this test.
 	hn.RPC.DeleteAllPayments()
 
-	// Update the node's internal state.
-	hn.UpdateState()
-
 	// Finally, check the node is in a clean state for the following tests.
 	h.validateNodeState(hn)
 }

lntemp/rpc/lnd.go

@@ -194,6 +194,10 @@ func (h *HarnessRPC) ListInvoices(
 	ctxt, cancel := context.WithTimeout(h.runCtx, DefaultTimeout)
 	defer cancel()
 
+	if req == nil {
+		req = &lnrpc.ListInvoiceRequest{}
+	}
+
 	resp, err := h.LN.ListInvoices(ctxt, req)
 	h.NoError(err, "ListInvoice")
 

lntest/itest/lnd_payment_test.go

@@ -1,7 +1,6 @@
 package itest
 
 import (
-	"bytes"
 	"context"
 	"crypto/sha256"
 	"encoding/hex"
@@ -31,11 +30,18 @@ func testListPayments(ht *lntemp.HarnessTest) {
 		alice, bob, lntemp.OpenChannelParams{Amt: chanAmt},
 	)
 
+	// Get the number of invoices Bob already has.
+	//
+	// TODO(yy): we can remove this check once the `DeleteAllInvoices` rpc
+	// is added.
+	invResp := bob.RPC.ListInvoices(nil)
+	numOldInvoices := len(invResp.Invoices)
+
 	// Now that the channel is open, create an invoice for Bob which
 	// expects a payment of 1000 satoshis from Alice paid via a particular
 	// preimage.
 	const paymentAmt = 1000
-	preimage := bytes.Repeat([]byte("B"), 32)
+	preimage := ht.Random32Bytes()
 	invoice := &lnrpc.Invoice{
 		Memo:      "testing",
 		RPreimage: preimage,
@@ -43,6 +49,10 @@ func testListPayments(ht *lntemp.HarnessTest) {
 	}
 	invoiceResp := bob.RPC.AddInvoice(invoice)
 
+	// Check that Bob has added the invoice.
+	numInvoices := numOldInvoices + 1
+	ht.AssertNumInvoices(bob, 1)
+
 	// With the invoice for Bob added, send a payment towards Alice paying
 	// to the above generated invoice.
 	payReqs := []string{invoiceResp.PaymentRequest}
@@ -113,8 +123,8 @@ func testListPayments(ht *lntemp.HarnessTest) {
 	invReq := &lnrpc.ListInvoiceRequest{
 		CreationDateStart: 1227035905,
 	}
-	invResp := bob.RPC.ListInvoices(invReq)
+	invResp = bob.RPC.ListInvoices(invReq)
-	require.Len(ht, invResp.Invoices, 1)
+	require.Len(ht, invResp.Invoices, numInvoices)
 
 	// Use an end date long time ago should return us nothing.
 	invReq = &lnrpc.ListInvoiceRequest{
@@ -135,7 +145,7 @@ func testListPayments(ht *lntemp.HarnessTest) {
 		CreationDateEnd: 5392552705,
 	}
 	invResp = bob.RPC.ListInvoices(invReq)
-	require.Len(ht, invResp.Invoices, 1)
+	require.Len(ht, invResp.Invoices, numInvoices)
 
 	// Delete all payments from Alice. DB should have no payments.
 	alice.RPC.DeleteAllPayments()
@@ -152,7 +162,7 @@ func testListPayments(ht *lntemp.HarnessTest) {
 	time.Sleep(2 * time.Second)
 
 	// Close the channel.
-	defer ht.CloseChannel(alice, chanPoint)
+	ht.CloseChannel(alice, chanPoint)
 }
 
 // testPaymentFollowingChannelOpen tests that the channel transition from