lsps0: add integration test

.github/workflows/integration_tests.yaml

@@ -129,3 +129,35 @@ jobs:
           CLIENT_REF: ${{ env.CLIENT_REF }}
           GO_VERSION: ${{ env.GO_VERSION }}
           CLN_VERSION: ${{ env.CLN_VERSION }}
+  
+  run-lsps2-test:
+    runs-on: ubuntu-22.04
+    needs:
+      - setup-itest
+      - setup-bitcoin-core
+      - setup-cln
+      - build-lspd
+    name: test ${{ matrix.implementation }} ${{ matrix.test }}
+    strategy:
+      max-parallel: 6
+      matrix:
+        test: [
+          testLsps0GetProtocolVersions
+        ]
+        implementation: [
+          CLN
+        ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Run and Process Test State
+        uses: ./.github/actions/test-lspd
+        with:
+          TESTRE: "TestLspd/${{ matrix.implementation }}-lspd:_${{ matrix.test }}"
+          artifact-name: TestLspd-${{ matrix.implementation }}-lspd_${{ matrix.test }}
+          bitcoin-version: ${{ env.BITCOIN_VERSION }}
+          LSP_REF: ${{ env.LSP_REF }}
+          CLIENT_REF: ${{ env.CLIENT_REF }}
+          GO_VERSION: ${{ env.GO_VERSION }}
+          CLN_VERSION: ${{ env.CLN_VERSION }}

itest/breez_client.go

@@ -21,6 +21,7 @@ type BreezClient interface {
 	Stop() error
 	SetHtlcAcceptor(totalMsat uint64)
 	ResetHtlcAcceptor()
+	ReceiveCustomMessage() *lntest.CustomMsgRequest
 }
 
 type generateInvoicesRequest struct {

itest/cln_breez_client.go

@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"bytes"
 	"context"
+	"encoding/binary"
 	"encoding/hex"
 	"fmt"
 	"io"
@@ -57,9 +58,11 @@ type clnBreezClient struct {
 	name               string
 	scriptDir          string
 	pluginFilePath     string
-	htlcAcceptorAddress string
+	pluginAddress      string
 	htlcAcceptor       func(*proto.HtlcAccepted) *proto.HtlcResolution
 	htlcAcceptorCancel context.CancelFunc
+	customMsgCancel    context.CancelFunc
+	customMsgQueue     chan *lntest.CustomMsgRequest
 	harness            *lntest.TestHarness
 	isInitialized      bool
 	node               *lntest.ClnNode
@@ -98,7 +101,7 @@ func newClnBreezClient(h *lntest.TestHarness, m *lntest.Miner, name string) Bree
 		node:           node,
 		scriptDir:      scriptDir,
 		pluginFilePath: pluginFilePath,
-		htlcAcceptorAddress: htlcAcceptorAddress,
+		pluginAddress:  htlcAcceptorAddress,
 	}
 }
 
@@ -125,6 +128,8 @@ func (c *clnBreezClient) Start() {
 
 	c.node.Start()
 	c.startHtlcAcceptor()
+	c.customMsgQueue = make(chan *lntest.CustomMsgRequest, 100)
+	c.startCustomMsgListener()
 }
 
 func (c *clnBreezClient) ResetHtlcAcceptor() {
@@ -206,6 +211,67 @@ func (c *clnBreezClient) SetHtlcAcceptor(totalMsat uint64) {
 	}
 }
 
+func (c *clnBreezClient) startCustomMsgListener() {
+	ctx, cancel := context.WithCancel(c.harness.Ctx)
+	c.customMsgCancel = cancel
+
+	go func() {
+		for {
+			if ctx.Err() != nil {
+				return
+			}
+
+			select {
+			case <-ctx.Done():
+				return
+			case <-time.After(time.Second):
+			}
+
+			conn, err := grpc.DialContext(
+				ctx,
+				c.pluginAddress,
+				grpc.WithTransportCredentials(insecure.NewCredentials()),
+				grpc.WithKeepaliveParams(keepalive.ClientParameters{
+					Time:    time.Duration(10) * time.Second,
+					Timeout: time.Duration(10) * time.Second,
+				}),
+			)
+			if err != nil {
+				log.Printf("%s: Dial htlc acceptor error: %v", c.name, err)
+				continue
+			}
+
+			client := proto.NewClnPluginClient(conn)
+			listener, err := client.CustomMsgStream(ctx, &proto.CustomMessageRequest{})
+			if err != nil {
+				log.Printf("%s: client.CustomMsgStream() error: %v", c.name, err)
+				break
+			}
+			for {
+				msg, err := listener.Recv()
+				if err != nil {
+					log.Printf("%s: listener.Recv() error: %v", c.name, err)
+					break
+				}
+
+				payload, err := hex.DecodeString(msg.Payload)
+				lntest.CheckError(c.harness.T, err)
+
+				c.customMsgQueue <- &lntest.CustomMsgRequest{
+					PeerId: msg.PeerId,
+					Type:   uint32(binary.BigEndian.Uint16(payload)),
+					Data:   payload[2:],
+				}
+			}
+		}
+	}()
+}
+
+func (c *clnBreezClient) ReceiveCustomMessage() *lntest.CustomMsgRequest {
+	msg := <-c.customMsgQueue
+	return msg
+}
+
 func (c *clnBreezClient) startHtlcAcceptor() {
 	ctx, cancel := context.WithCancel(c.harness.Ctx)
 	c.htlcAcceptorCancel = cancel
@@ -224,7 +290,7 @@ func (c *clnBreezClient) startHtlcAcceptor() {
 
 			conn, err := grpc.DialContext(
 				ctx,
-				c.htlcAcceptorAddress,
+				c.pluginAddress,
 				grpc.WithTransportCredentials(insecure.NewCredentials()),
 				grpc.WithKeepaliveParams(keepalive.ClientParameters{
 					Time:    time.Duration(10) * time.Second,

itest/lnd_breez_client.go

@@ -86,6 +86,11 @@ func (c *lndBreezClient) SetHtlcAcceptor(totalMsat uint64) {
 	// No need for a htlc acceptor in the LND breez client
 }
 
+func (c *lndBreezClient) ReceiveCustomMessage() *lntest.CustomMsgRequest {
+	// TODO: Not implemented.
+	return nil
+}
+
 func (c *lndBreezClient) startChannelAcceptor(ctx context.Context) error {
 	client, err := c.node.LightningClient().ChannelAcceptor(ctx)
 	if err != nil {

itest/lspd_test.go

@@ -174,4 +174,8 @@ var allTestCases = []*testCase{
 		name: "testOfflineNotificationZeroConfChannel",
 		test: testOfflineNotificationZeroConfChannel,
 	},
+	{
+		name: "testLsps0GetProtocolVersions",
+		test: testLsps0GetProtocolVersions,
+	},
 }

itest/lsps0_protocol_version_test.go

@@ -0,0 +1,45 @@
+package itest
+
+import (
+	"encoding/hex"
+	"encoding/json"
+
+	"github.com/breez/lntest"
+	"github.com/breez/lspd/lsps0"
+	"github.com/stretchr/testify/assert"
+)
+
+func testLsps0GetProtocolVersions(p *testParams) {
+	p.BreezClient().Node().ConnectPeer(p.Lsp().LightningNode())
+
+	rawMsg := `{
+		"method": "lsps0.list_protocols",
+		"jsonrpc": "2.0",
+		"id": "example#3cad6a54d302edba4c9ade2f7ffac098",
+		"params": {}
+	  }`
+	p.BreezClient().Node().SendCustomMessage(&lntest.CustomMsgRequest{
+		PeerId: hex.EncodeToString(p.Lsp().NodeId()),
+		Type:   lsps0.Lsps0MessageType,
+		Data:   []byte(rawMsg),
+	})
+
+	resp := p.BreezClient().ReceiveCustomMessage()
+	assert.Equal(p.t, uint32(37913), resp.Type)
+
+	content := make(map[string]interface{})
+	err := json.Unmarshal(resp.Data[:], &content)
+	lntest.CheckError(p.t, err)
+
+	assert.Equal(p.t, "2.0", content["jsonrpc"])
+	assert.Equal(p.t, "example#3cad6a54d302edba4c9ade2f7ffac098", content["id"])
+
+	content2 := make(map[string]json.RawMessage)
+	err = json.Unmarshal(resp.Data[:], &content2)
+	lntest.CheckError(p.t, err)
+
+	result := make(map[string][]int)
+	err = json.Unmarshal(content2["result"], &result)
+	lntest.CheckError(p.t, err)
+	assert.Equal(p.t, []int{2}, result["protocols"])
+}