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122 lines
2.8 KiB
122 lines
2.8 KiB
package abcicli_test
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import (
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"errors"
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"fmt"
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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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abcicli "github.com/tendermint/tendermint/abci/client"
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"github.com/tendermint/tendermint/abci/server"
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"github.com/tendermint/tendermint/abci/types"
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"github.com/tendermint/tendermint/libs/rand"
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"github.com/tendermint/tendermint/libs/service"
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)
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func TestSocketClientStopForErrorDeadlock(t *testing.T) {
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c := abcicli.NewSocketClient(":80", false)
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err := errors.New("foo-tendermint")
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// See Issue https://github.com/tendermint/abci/issues/114
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doneChan := make(chan bool)
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go func() {
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defer close(doneChan)
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c.StopForError(err)
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c.StopForError(err)
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}()
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select {
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case <-doneChan:
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case <-time.After(time.Second * 4):
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t.Fatalf("Test took too long, potential deadlock still exists")
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}
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}
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func TestProperSyncCalls(t *testing.T) {
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app := slowApp{}
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s, c := setupClientServer(t, app)
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defer s.Stop()
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defer c.Stop()
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resp := make(chan error, 1)
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go func() {
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// This is BeginBlockSync unrolled....
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reqres := c.BeginBlockAsync(types.RequestBeginBlock{})
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c.FlushSync()
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res := reqres.Response.GetBeginBlock()
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require.NotNil(t, res)
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resp <- c.Error()
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}()
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select {
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case <-time.After(time.Second):
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require.Fail(t, "No response arrived")
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case err, ok := <-resp:
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require.True(t, ok, "Must not close channel")
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assert.NoError(t, err, "This should return success")
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}
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}
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func TestHangingSyncCalls(t *testing.T) {
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app := slowApp{}
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s, c := setupClientServer(t, app)
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defer s.Stop()
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defer c.Stop()
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resp := make(chan error, 1)
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go func() {
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// Start BeginBlock and flush it
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reqres := c.BeginBlockAsync(types.RequestBeginBlock{})
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flush := c.FlushAsync()
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// wait 20 ms for all events to travel socket, but
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// no response yet from server
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time.Sleep(20 * time.Millisecond)
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// kill the server, so the connections break
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s.Stop()
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// wait for the response from BeginBlock
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reqres.Wait()
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flush.Wait()
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resp <- c.Error()
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}()
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select {
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case <-time.After(time.Second):
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require.Fail(t, "No response arrived")
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case err, ok := <-resp:
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require.True(t, ok, "Must not close channel")
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assert.Error(t, err, "We should get EOF error")
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}
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}
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func setupClientServer(t *testing.T, app types.Application) (
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service.Service, abcicli.Client) {
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// some port between 20k and 30k
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port := 20000 + rand.RandInt32()%10000
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addr := fmt.Sprintf("localhost:%d", port)
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s, err := server.NewServer(addr, "socket", app)
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require.NoError(t, err)
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err = s.Start()
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require.NoError(t, err)
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c := abcicli.NewSocketClient(addr, true)
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err = c.Start()
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require.NoError(t, err)
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return s, c
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}
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type slowApp struct {
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types.BaseApplication
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}
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func (slowApp) BeginBlock(req types.RequestBeginBlock) types.ResponseBeginBlock {
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time.Sleep(200 * time.Millisecond)
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return types.ResponseBeginBlock{}
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}
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