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135 lines
3.0 KiB
135 lines
3.0 KiB
package abciclient_test
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import (
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"context"
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"fmt"
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"testing"
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"time"
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"math/rand"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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abciclient "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/log"
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"github.com/tendermint/tendermint/libs/service"
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)
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var ctx = context.Background()
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func TestProperSyncCalls(t *testing.T) {
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app := slowApp{}
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logger := log.TestingLogger()
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s, c := setupClientServer(t, logger, app)
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t.Cleanup(func() {
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if err := s.Stop(); err != nil {
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t.Error(err)
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}
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})
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t.Cleanup(func() {
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if err := c.Stop(); err != nil {
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t.Error(err)
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}
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})
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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, err := c.BeginBlockAsync(ctx, types.RequestBeginBlock{})
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assert.NoError(t, err)
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err = c.FlushSync(context.Background())
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assert.NoError(t, err)
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res := reqres.Response.GetBeginBlock()
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assert.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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logger := log.TestingLogger()
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s, c := setupClientServer(t, logger, app)
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t.Cleanup(func() {
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if err := s.Stop(); err != nil {
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t.Log(err)
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}
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})
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t.Cleanup(func() {
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if err := c.Stop(); err != nil {
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t.Log(err)
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}
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})
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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, err := c.BeginBlockAsync(ctx, types.RequestBeginBlock{})
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assert.NoError(t, err)
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flush, err := c.FlushAsync(ctx)
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assert.NoError(t, err)
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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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err = s.Stop()
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assert.NoError(t, err)
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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(
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t *testing.T,
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logger log.Logger,
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app types.Application,
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) (service.Service, abciclient.Client) {
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t.Helper()
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// some port between 20k and 30k
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port := 20000 + rand.Int31()%10000
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addr := fmt.Sprintf("localhost:%d", port)
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s, err := server.NewServer(logger, 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 := abciclient.NewSocketClient(logger, 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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