mirror of
https://github.com/tendermint/tendermint.git
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e13b4386ff
`abci.Client`:
- Sync and Async methods now accept a context for cancellation
* grpc client uses context to cancel both Sync and Async requests
* local client ignores context parameter
* socket client uses context to cancel Sync requests and to drop Async requests before sending them if context was cancelled prior to that
- Async methods return an error
* socket client returns an error immediately if queue is full for Async requests
* local client always returns nil error
* grpc client returns an error if context was cancelled before we got response or the receiving queue had a space for response (do not confuse with the sending queue from the socket client)
- specify clients semantics in [doc.go](https://raw.githubusercontent.com/tendermint/tendermint/27112fffa62276bc016d56741f686f0f77931748/abci/client/doc.go)
`mempool.TxInfo`
- add optional `Context` to `TxInfo`, which can be used to cancel `CheckTx` request
Closes #5190
127 lines
2.8 KiB
Go
127 lines
2.8 KiB
Go
package abcicli_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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"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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tmrand "github.com/tendermint/tendermint/libs/rand"
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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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s, c := setupClientServer(t, 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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s, c := setupClientServer(t, 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(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 + tmrand.Int32()%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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