mirror of
https://github.com/lightningnetwork/lnd.git
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5a94919b7e
This is the last commit to refactor the context management such that all the timeout are managed inside the network harness.
100 lines
3.0 KiB
Go
100 lines
3.0 KiB
Go
// +build rpctest
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package itest
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import (
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"fmt"
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"strings"
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"github.com/btcsuite/btcutil"
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"github.com/lightningnetwork/lnd/funding"
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"github.com/lightningnetwork/lnd/lntest"
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)
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// testMaxChannelSize tests that lnd handles --maxchansize parameter
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// correctly. Wumbo nodes should enforce a default soft limit of 10 BTC by
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// default. This limit can be adjusted with --maxchansize config option
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func testMaxChannelSize(net *lntest.NetworkHarness, t *harnessTest) {
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// We'll make two new nodes, both wumbo but with the default
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// limit on maximum channel size (10 BTC)
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wumboNode := net.NewNode(
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t.t, "wumbo", []string{"--protocol.wumbo-channels"},
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)
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defer shutdownAndAssert(net, t, wumboNode)
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wumboNode2 := net.NewNode(
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t.t, "wumbo2", []string{"--protocol.wumbo-channels"},
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)
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defer shutdownAndAssert(net, t, wumboNode2)
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// We'll send 11 BTC to the wumbo node so it can test the wumbo soft limit.
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net.SendCoins(t.t, 11*btcutil.SatoshiPerBitcoin, wumboNode)
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// Next we'll connect both nodes, then attempt to make a wumbo channel
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// funding request, which should fail as it exceeds the default wumbo
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// soft limit of 10 BTC.
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net.EnsureConnected(t.t, wumboNode, wumboNode2)
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chanAmt := funding.MaxBtcFundingAmountWumbo + 1
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_, err := net.OpenChannel(
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wumboNode, wumboNode2, 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 channel funding to fail as it exceeds 10 BTC limit")
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}
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// The test should show failure due to the channel exceeding our max size.
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if !strings.Contains(err.Error(), "exceeds maximum chan size") {
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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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// Next we'll create a non-wumbo node to verify that it enforces the
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// BOLT-02 channel size limit and rejects our funding request.
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miniNode := net.NewNode(t.t, "mini", nil)
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defer shutdownAndAssert(net, t, miniNode)
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net.EnsureConnected(t.t, wumboNode, miniNode)
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_, err = net.OpenChannel(
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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 channel funding to fail as it exceeds 0.16 BTC limit")
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}
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// The test should show failure due to the channel exceeding our max size.
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if !strings.Contains(err.Error(), "exceeds maximum chan size") {
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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 with appropriate maximum channel size
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// to accept our wumbo channel funding.
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wumboNode3 := net.NewNode(
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t.t, "wumbo3", []string{
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"--protocol.wumbo-channels",
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fmt.Sprintf(
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"--maxchansize=%v",
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int64(funding.MaxBtcFundingAmountWumbo+1),
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),
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},
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)
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defer shutdownAndAssert(net, t, wumboNode3)
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// Creating a wumbo channel between these two nodes should succeed.
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net.EnsureConnected(t.t, wumboNode, wumboNode3)
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chanPoint := openChannelAndAssert(
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t, net, wumboNode, wumboNode3,
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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(t, net, wumboNode, chanPoint, false)
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}
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