93 lines
2.7 KiB
Go
93 lines
2.7 KiB
Go
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// +build rpctest
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package itest
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import (
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"context"
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"strings"
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"github.com/btcsuite/btcutil"
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"github.com/lightningnetwork/lnd"
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"github.com/lightningnetwork/lnd/lntest"
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)
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// testWumboChannels tests that only a node that signals wumbo channel
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// acceptances will allow a wumbo channel to be created. Additionally, if a
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// node is running with mini channels only enabled, then they should reject any
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// inbound wumbo channel requests.
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func testWumboChannels(net *lntest.NetworkHarness, t *harnessTest) {
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// With all the channel types exercised, we'll now make sure the wumbo
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// signalling support works properly.
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//
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// We'll make two new nodes, with one of them signalling support for
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// wumbo channels while the other doesn't.
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wumboNode, err := net.NewNode(
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"wumbo", []string{"--protocol.wumbo-channels"},
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)
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if err != nil {
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t.Fatalf("unable to create new node: %v", err)
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}
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defer shutdownAndAssert(net, t, wumboNode)
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miniNode, err := net.NewNode("mini", nil)
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if err != nil {
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t.Fatalf("unable to create new node: %v", err)
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}
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defer shutdownAndAssert(net, t, miniNode)
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// We'll send coins to the wumbo node, as it'll be the one imitating
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// the channel funding.
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ctxb := context.Background()
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err = net.SendCoins(ctxb, btcutil.SatoshiPerBitcoin, wumboNode)
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if err != nil {
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t.Fatalf("unable to send coins to carol: %v", err)
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}
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// Next we'll connect both nodes, then attempt to make a wumbo channel
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// funding request to the mini node we created above. The wumbo request
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// should fail as the node isn't advertising wumbo channels.
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err = net.EnsureConnected(ctxb, wumboNode, miniNode)
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if err != nil {
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t.Fatalf("unable to connect peers: %v", err)
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}
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chanAmt := lnd.MaxBtcFundingAmount + 1
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_, err = net.OpenChannel(
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ctxb, wumboNode, miniNode, lntest.OpenChannelParams{
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Amt: chanAmt,
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},
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)
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if err == nil {
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t.Fatalf("expected wumbo channel funding to fail")
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}
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// The test should indicate a failure due to the channel being too
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// large.
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if !strings.Contains(err.Error(), "channel too large") {
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t.Fatalf("channel should be rejected due to size, instead "+
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"error was: %v", err)
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}
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// We'll now make another wumbo node to accept our wumbo channel
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// funding.
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wumboNode2, err := net.NewNode(
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"wumbo2", []string{"--protocol.wumbo-channels"},
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)
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if err != nil {
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t.Fatalf("unable to create new node: %v", err)
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}
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defer shutdownAndAssert(net, t, wumboNode2)
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// Creating a wumbo channel between these two nodes should succeed.
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err = net.EnsureConnected(ctxb, wumboNode, wumboNode2)
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if err != nil {
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t.Fatalf("unable to connect peers: %v", err)
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}
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chanPoint := openChannelAndAssert(
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ctxb, t, net, wumboNode, wumboNode2,
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lntest.OpenChannelParams{
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Amt: chanAmt,
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},
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)
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closeChannelAndAssert(ctxb, t, net, wumboNode, chanPoint, false)
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}
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