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461 lines
12 KiB
461 lines
12 KiB
package privval
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import (
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"fmt"
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"net"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/crypto/ed25519"
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cmn "github.com/tendermint/tendermint/libs/common"
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"github.com/tendermint/tendermint/libs/log"
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"github.com/tendermint/tendermint/types"
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)
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var (
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testAcceptDeadline = defaultAcceptDeadlineSeconds * time.Second
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testConnDeadline = 100 * time.Millisecond
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testConnDeadline2o3 = 66 * time.Millisecond // 2/3 of the other one
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testHeartbeatTimeout = 10 * time.Millisecond
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testHeartbeatTimeout3o2 = 6 * time.Millisecond // 3/2 of the other one
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)
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type socketTestCase struct {
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addr string
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dialer Dialer
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}
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func socketTestCases(t *testing.T) []socketTestCase {
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tcpAddr := fmt.Sprintf("tcp://%s", testFreeTCPAddr(t))
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unixFilePath, err := testUnixAddr()
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require.NoError(t, err)
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unixAddr := fmt.Sprintf("unix://%s", unixFilePath)
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return []socketTestCase{
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socketTestCase{
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addr: tcpAddr,
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dialer: DialTCPFn(tcpAddr, testConnDeadline, ed25519.GenPrivKey()),
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},
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socketTestCase{
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addr: unixAddr,
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dialer: DialUnixFn(unixFilePath),
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},
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}
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}
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func TestSocketPVAddress(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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// Execute the test within a closure to ensure the deferred statements
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// are called between each for loop iteration, for isolated test cases.
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func() {
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var (
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chainID = cmn.RandStr(12)
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sc, rs = testSetupSocketPair(t, chainID, types.NewMockPV(), tc.addr, tc.dialer)
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)
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defer sc.Stop()
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defer rs.Stop()
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serverAddr := rs.privVal.GetPubKey().Address()
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clientAddr := sc.GetPubKey().Address()
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assert.Equal(t, serverAddr, clientAddr)
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}()
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}
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}
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func TestSocketPVPubKey(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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chainID = cmn.RandStr(12)
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sc, rs = testSetupSocketPair(t, chainID, types.NewMockPV(), tc.addr, tc.dialer)
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)
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defer sc.Stop()
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defer rs.Stop()
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clientKey := sc.GetPubKey()
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privvalPubKey := rs.privVal.GetPubKey()
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assert.Equal(t, privvalPubKey, clientKey)
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}()
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}
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}
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func TestSocketPVProposal(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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chainID = cmn.RandStr(12)
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sc, rs = testSetupSocketPair(t, chainID, types.NewMockPV(), tc.addr, tc.dialer)
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ts = time.Now()
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privProposal = &types.Proposal{Timestamp: ts}
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clientProposal = &types.Proposal{Timestamp: ts}
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)
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defer sc.Stop()
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defer rs.Stop()
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require.NoError(t, rs.privVal.SignProposal(chainID, privProposal))
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require.NoError(t, sc.SignProposal(chainID, clientProposal))
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assert.Equal(t, privProposal.Signature, clientProposal.Signature)
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}()
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}
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}
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func TestSocketPVVote(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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chainID = cmn.RandStr(12)
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sc, rs = testSetupSocketPair(t, chainID, types.NewMockPV(), tc.addr, tc.dialer)
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ts = time.Now()
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vType = types.PrecommitType
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want = &types.Vote{Timestamp: ts, Type: vType}
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have = &types.Vote{Timestamp: ts, Type: vType}
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)
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defer sc.Stop()
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defer rs.Stop()
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require.NoError(t, rs.privVal.SignVote(chainID, want))
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require.NoError(t, sc.SignVote(chainID, have))
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assert.Equal(t, want.Signature, have.Signature)
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}()
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}
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}
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func TestSocketPVVoteResetDeadline(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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chainID = cmn.RandStr(12)
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sc, rs = testSetupSocketPair(t, chainID, types.NewMockPV(), tc.addr, tc.dialer)
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ts = time.Now()
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vType = types.PrecommitType
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want = &types.Vote{Timestamp: ts, Type: vType}
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have = &types.Vote{Timestamp: ts, Type: vType}
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)
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defer sc.Stop()
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defer rs.Stop()
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time.Sleep(testConnDeadline2o3)
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require.NoError(t, rs.privVal.SignVote(chainID, want))
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require.NoError(t, sc.SignVote(chainID, have))
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assert.Equal(t, want.Signature, have.Signature)
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// This would exceed the deadline if it was not extended by the previous message
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time.Sleep(testConnDeadline2o3)
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require.NoError(t, rs.privVal.SignVote(chainID, want))
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require.NoError(t, sc.SignVote(chainID, have))
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assert.Equal(t, want.Signature, have.Signature)
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}()
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}
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}
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func TestSocketPVVoteKeepalive(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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chainID = cmn.RandStr(12)
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sc, rs = testSetupSocketPair(t, chainID, types.NewMockPV(), tc.addr, tc.dialer)
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ts = time.Now()
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vType = types.PrecommitType
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want = &types.Vote{Timestamp: ts, Type: vType}
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have = &types.Vote{Timestamp: ts, Type: vType}
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)
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defer sc.Stop()
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defer rs.Stop()
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time.Sleep(testConnDeadline * 2)
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require.NoError(t, rs.privVal.SignVote(chainID, want))
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require.NoError(t, sc.SignVote(chainID, have))
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assert.Equal(t, want.Signature, have.Signature)
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}()
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}
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}
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func TestSocketPVDeadline(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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listenc = make(chan struct{})
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thisConnTimeout = 100 * time.Millisecond
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sc = newSocketVal(log.TestingLogger(), tc.addr, thisConnTimeout)
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)
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go func(sc *SocketVal) {
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defer close(listenc)
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// Note: the TCP connection times out at the accept() phase,
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// whereas the Unix domain sockets connection times out while
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// attempting to fetch the remote signer's public key.
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assert.True(t, IsConnTimeout(sc.Start()))
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assert.False(t, sc.IsRunning())
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}(sc)
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for {
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_, err := cmn.Connect(tc.addr)
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if err == nil {
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break
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}
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}
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<-listenc
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}()
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}
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}
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func TestRemoteSignVoteErrors(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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chainID = cmn.RandStr(12)
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sc, rs = testSetupSocketPair(t, chainID, types.NewErroringMockPV(), tc.addr, tc.dialer)
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ts = time.Now()
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vType = types.PrecommitType
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vote = &types.Vote{Timestamp: ts, Type: vType}
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)
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defer sc.Stop()
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defer rs.Stop()
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err := sc.SignVote("", vote)
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require.Equal(t, err.(*RemoteSignerError).Description, types.ErroringMockPVErr.Error())
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err = rs.privVal.SignVote(chainID, vote)
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require.Error(t, err)
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err = sc.SignVote(chainID, vote)
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require.Error(t, err)
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}()
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}
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}
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func TestRemoteSignProposalErrors(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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chainID = cmn.RandStr(12)
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sc, rs = testSetupSocketPair(t, chainID, types.NewErroringMockPV(), tc.addr, tc.dialer)
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ts = time.Now()
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proposal = &types.Proposal{Timestamp: ts}
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)
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defer sc.Stop()
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defer rs.Stop()
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err := sc.SignProposal("", proposal)
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require.Equal(t, err.(*RemoteSignerError).Description, types.ErroringMockPVErr.Error())
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err = rs.privVal.SignProposal(chainID, proposal)
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require.Error(t, err)
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err = sc.SignProposal(chainID, proposal)
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require.Error(t, err)
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}()
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}
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}
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func TestErrUnexpectedResponse(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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logger = log.TestingLogger()
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chainID = cmn.RandStr(12)
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readyc = make(chan struct{})
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errc = make(chan error, 1)
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rs = NewRemoteSigner(
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logger,
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chainID,
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types.NewMockPV(),
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tc.dialer,
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)
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sc = newSocketVal(logger, tc.addr, testConnDeadline)
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)
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testStartSocketPV(t, readyc, sc)
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defer sc.Stop()
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RemoteSignerConnDeadline(time.Millisecond)(rs)
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RemoteSignerConnRetries(100)(rs)
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// we do not want to Start() the remote signer here and instead use the connection to
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// reply with intentionally wrong replies below:
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rsConn, err := rs.connect()
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defer rsConn.Close()
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require.NoError(t, err)
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require.NotNil(t, rsConn)
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// send over public key to get the remote signer running:
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go testReadWriteResponse(t, &PubKeyResponse{}, rsConn)
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<-readyc
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// Proposal:
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go func(errc chan error) {
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errc <- sc.SignProposal(chainID, &types.Proposal{})
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}(errc)
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// read request and write wrong response:
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go testReadWriteResponse(t, &SignedVoteResponse{}, rsConn)
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err = <-errc
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require.Error(t, err)
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require.Equal(t, err, ErrUnexpectedResponse)
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// Vote:
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go func(errc chan error) {
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errc <- sc.SignVote(chainID, &types.Vote{})
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}(errc)
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// read request and write wrong response:
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go testReadWriteResponse(t, &SignedProposalResponse{}, rsConn)
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err = <-errc
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require.Error(t, err)
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require.Equal(t, err, ErrUnexpectedResponse)
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}()
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}
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}
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func TestRetryConnToRemoteSigner(t *testing.T) {
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for _, tc := range socketTestCases(t) {
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func() {
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var (
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logger = log.TestingLogger()
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chainID = cmn.RandStr(12)
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readyc = make(chan struct{})
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rs = NewRemoteSigner(
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logger,
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chainID,
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types.NewMockPV(),
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tc.dialer,
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)
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thisConnTimeout = testConnDeadline
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sc = newSocketVal(logger, tc.addr, thisConnTimeout)
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)
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// Ping every:
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SocketValHeartbeat(testHeartbeatTimeout)(sc)
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RemoteSignerConnDeadline(testConnDeadline)(rs)
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RemoteSignerConnRetries(10)(rs)
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testStartSocketPV(t, readyc, sc)
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defer sc.Stop()
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require.NoError(t, rs.Start())
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assert.True(t, rs.IsRunning())
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<-readyc
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time.Sleep(testHeartbeatTimeout * 2)
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rs.Stop()
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rs2 := NewRemoteSigner(
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logger,
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chainID,
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types.NewMockPV(),
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tc.dialer,
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)
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// let some pings pass
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time.Sleep(testHeartbeatTimeout3o2)
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require.NoError(t, rs2.Start())
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assert.True(t, rs2.IsRunning())
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defer rs2.Stop()
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// give the client some time to re-establish the conn to the remote signer
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// should see sth like this in the logs:
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//
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// E[10016-01-10|17:12:46.128] Ping err="remote signer timed out"
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// I[10016-01-10|17:16:42.447] Re-created connection to remote signer impl=SocketVal
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time.Sleep(testConnDeadline * 2)
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}()
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}
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}
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func newSocketVal(logger log.Logger, addr string, connDeadline time.Duration) *SocketVal {
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proto, address := cmn.ProtocolAndAddress(addr)
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ln, err := net.Listen(proto, address)
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logger.Info("Listening at", "proto", proto, "address", address)
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if err != nil {
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panic(err)
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}
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var svln net.Listener
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if proto == "unix" {
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unixLn := NewUnixListener(ln)
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UnixListenerAcceptDeadline(testAcceptDeadline)(unixLn)
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UnixListenerConnDeadline(connDeadline)(unixLn)
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svln = unixLn
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} else {
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tcpLn := NewTCPListener(ln, ed25519.GenPrivKey())
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TCPListenerAcceptDeadline(testAcceptDeadline)(tcpLn)
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TCPListenerConnDeadline(connDeadline)(tcpLn)
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svln = tcpLn
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}
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return NewSocketVal(logger, svln)
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}
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func testSetupSocketPair(
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t *testing.T,
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chainID string,
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privValidator types.PrivValidator,
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addr string,
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dialer Dialer,
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) (*SocketVal, *RemoteSigner) {
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var (
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logger = log.TestingLogger()
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privVal = privValidator
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readyc = make(chan struct{})
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rs = NewRemoteSigner(
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logger,
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chainID,
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privVal,
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dialer,
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)
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thisConnTimeout = testConnDeadline
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sc = newSocketVal(logger, addr, thisConnTimeout)
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)
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SocketValHeartbeat(testHeartbeatTimeout)(sc)
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RemoteSignerConnDeadline(testConnDeadline)(rs)
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RemoteSignerConnRetries(1e6)(rs)
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testStartSocketPV(t, readyc, sc)
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require.NoError(t, rs.Start())
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assert.True(t, rs.IsRunning())
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<-readyc
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return sc, rs
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}
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func testReadWriteResponse(t *testing.T, resp RemoteSignerMsg, rsConn net.Conn) {
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_, err := readMsg(rsConn)
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require.NoError(t, err)
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err = writeMsg(rsConn, resp)
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require.NoError(t, err)
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}
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func testStartSocketPV(t *testing.T, readyc chan struct{}, sc *SocketVal) {
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go func(sc *SocketVal) {
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require.NoError(t, sc.Start())
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assert.True(t, sc.IsRunning())
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readyc <- struct{}{}
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}(sc)
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}
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// testFreeTCPAddr claims a free port so we don't block on listener being ready.
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func testFreeTCPAddr(t *testing.T) string {
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ln, err := net.Listen("tcp", "127.0.0.1:0")
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require.NoError(t, err)
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defer ln.Close()
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return fmt.Sprintf("127.0.0.1:%d", ln.Addr().(*net.TCPAddr).Port)
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}
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