mirror of
https://github.com/libp2p/go-libp2p.git
synced 2025-10-05 00:02:55 +08:00
109 lines
3.5 KiB
Go
109 lines
3.5 KiB
Go
package basichost
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import (
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"context"
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"net/netip"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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ma "github.com/multiformats/go-multiaddr"
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swarmt "github.com/libp2p/go-libp2p/p2p/net/swarm/testing"
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"go.uber.org/mock/gomock"
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)
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func setupMockNAT(t *testing.T) (mockNAT *MockNAT, reset func()) {
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t.Helper()
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ctrl := gomock.NewController(t)
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mockNAT = NewMockNAT(ctrl)
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origDiscoverNAT := discoverNAT
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discoverNAT = func(_ context.Context) (nat, error) { return mockNAT, nil }
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return mockNAT, func() {
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discoverNAT = origDiscoverNAT
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ctrl.Finish()
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}
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}
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func TestMapping(t *testing.T) {
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mockNAT, reset := setupMockNAT(t)
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defer reset()
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sw := swarmt.GenSwarm(t)
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defer sw.Close()
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m := newNATManager(sw)
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require.Eventually(t, func() bool {
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m.natMx.Lock()
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defer m.natMx.Unlock()
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return m.nat != nil
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}, time.Second, time.Millisecond)
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externalAddr := netip.AddrPortFrom(netip.AddrFrom4([4]byte{1, 2, 3, 4}), 4321)
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// pretend that we have a TCP mapping
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mockNAT.EXPECT().GetMapping("tcp", 1234).Return(externalAddr, true)
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require.Equal(t, "/ip4/1.2.3.4/tcp/4321", m.GetMapping(ma.StringCast("/ip4/0.0.0.0/tcp/1234")).String())
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// pretend that we have a QUIC mapping
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mockNAT.EXPECT().GetMapping("udp", 1234).Return(externalAddr, true)
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require.Equal(t, "/ip4/1.2.3.4/udp/4321/quic-v1", m.GetMapping(ma.StringCast("/ip4/0.0.0.0/udp/1234/quic-v1")).String())
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// pretend that there's no mapping
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mockNAT.EXPECT().GetMapping("tcp", 1234).Return(netip.AddrPort{}, false)
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require.Nil(t, m.GetMapping(ma.StringCast("/ip4/0.0.0.0/tcp/1234")))
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// make sure this works for WebSocket addresses as well
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mockNAT.EXPECT().GetMapping("tcp", 1234).Return(externalAddr, true)
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require.Equal(t, "/ip4/1.2.3.4/tcp/4321/ws", m.GetMapping(ma.StringCast("/ip4/0.0.0.0/tcp/1234/ws")).String())
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// make sure this works for WebTransport addresses as well
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mockNAT.EXPECT().GetMapping("udp", 1234).Return(externalAddr, true)
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require.Equal(t, "/ip4/1.2.3.4/udp/4321/quic-v1/webtransport", m.GetMapping(ma.StringCast("/ip4/0.0.0.0/udp/1234/quic-v1/webtransport")).String())
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}
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func TestAddAndRemoveListeners(t *testing.T) {
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mockNAT, reset := setupMockNAT(t)
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defer reset()
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sw := swarmt.GenSwarm(t)
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defer sw.Close()
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m := newNATManager(sw)
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require.Eventually(t, func() bool {
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m.natMx.Lock()
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defer m.natMx.Unlock()
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return m.nat != nil
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}, time.Second, time.Millisecond)
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added := make(chan struct{}, 1)
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// add a TCP listener
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mockNAT.EXPECT().AddMapping(gomock.Any(), "tcp", 1234).Do(func(context.Context, string, int) { added <- struct{}{} })
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require.NoError(t, sw.Listen(ma.StringCast("/ip4/0.0.0.0/tcp/1234")))
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select {
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case <-added:
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case <-time.After(time.Second):
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t.Fatal("didn't receive call to AddMapping")
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}
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// add a QUIC listener
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mockNAT.EXPECT().AddMapping(gomock.Any(), "udp", 1234).Do(func(context.Context, string, int) { added <- struct{}{} })
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require.NoError(t, sw.Listen(ma.StringCast("/ip4/0.0.0.0/udp/1234/quic-v1")))
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select {
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case <-added:
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case <-time.After(time.Second):
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t.Fatal("didn't receive call to AddMapping")
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}
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// remove the QUIC listener
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mockNAT.EXPECT().RemoveMapping(gomock.Any(), "udp", 1234).Do(func(context.Context, string, int) { added <- struct{}{} })
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sw.ListenClose(ma.StringCast("/ip4/0.0.0.0/udp/1234/quic-v1"))
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select {
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case <-added:
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case <-time.After(time.Second):
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t.Fatal("didn't receive call to RemoveMapping")
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}
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// test shutdown
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mockNAT.EXPECT().RemoveMapping(gomock.Any(), "tcp", 1234).MaxTimes(1)
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mockNAT.EXPECT().Close().MaxTimes(1)
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}
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