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client_test.go
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client_test.go
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package core
import (
"bytes"
"context"
"sync"
"testing"
"time"
"github.com/lucas-clemente/quic-go"
"github.com/stretchr/testify/assert"
"github.com/yomorun/yomo/core/frame"
"github.com/yomorun/yomo/core/metadata"
"github.com/yomorun/yomo/core/router"
"github.com/yomorun/yomo/core/ylog"
"github.com/yomorun/yomo/pkg/config"
)
const testaddr = "127.0.0.1:19999"
func TestClientDialNothing(t *testing.T) {
ctx := context.Background()
client := NewClient("source", ClientTypeSource)
assert.Equal(t, ConnStateReady, client.State(), "client state should be ConnStateReady")
err := client.Connect(ctx, testaddr)
assert.Equal(t, ConnStateDisconnected, client.State(), "client state should be ConnStateDisconnected")
qerr := &quic.IdleTimeoutError{}
assert.ErrorAs(t, err, &qerr, "dial must timeout")
}
func TestFrameRoundTrip(t *testing.T) {
ctx := context.Background()
var (
obversedTag = frame.Tag(1)
payload = []byte("hello data frame")
)
server := NewServer("zipper",
WithAddr(testaddr),
WithAuth("token", "auth-token"),
WithServerQuicConfig(DefalutQuicConfig),
WithServerTLSConfig(nil),
)
server.ConfigMetadataBuilder(metadata.DefaultBuilder())
server.ConfigRouter(router.Default([]config.App{{Name: "sfn-1"}}))
// test server hooks
ht := &hookTester{t}
server.SetStartHandlers(ht.startHandler)
server.SetBeforeHandlers(ht.beforeHandler)
server.SetAfterHandlers(ht.afterHandler)
w := newMockFrameWriter()
server.AddDownstreamServer("mockAddr", w)
go func() {
server.ListenAndServe(ctx, testaddr)
}()
source := NewClient(
"source",
ClientTypeSource,
WithCredential("token:auth-token"),
WithObserveDataTags(obversedTag),
WithClientQuicConfig(DefalutQuicConfig),
WithClientTLSConfig(nil),
WithLogger(ylog.Default()),
)
source.SetBackflowFrameObserver(func(bf *frame.BackflowFrame) {
assert.Equal(t, string(payload), string(bf.GetCarriage()))
})
err := source.Connect(ctx, testaddr)
assert.NoError(t, err, "source connect must be success")
assert.Equal(t, ConnStateConnected, source.State(), "source state should be ConnStateConnected")
sfn := NewClient("sfn-1", ClientTypeStreamFunction, WithCredential("token:auth-token"), WithObserveDataTags(obversedTag))
sfn.SetDataFrameObserver(func(bf *frame.DataFrame) {
assert.Equal(t, string(payload), string(bf.GetCarriage()))
})
err = sfn.Connect(ctx, testaddr)
assert.NoError(t, err, "sfn connect must be success")
assert.Equal(t, ConnStateConnected, sfn.State(), "sfn state should be ConnStateConnected")
// wait source and sfn handshake successful (not elegant).
time.Sleep(time.Second)
stats := server.StatsFunctions()
nameList := []string{}
for _, name := range stats {
nameList = append(nameList, name)
}
assert.ElementsMatch(t, nameList, []string{"source", "sfn-1"})
dataFrame := frame.NewDataFrame()
dataFrame.SetSourceID(source.clientID)
dataFrame.SetCarriage(obversedTag, payload)
dataFrame.SetBroadcast(true)
err = source.WriteFrame(dataFrame)
assert.NoError(t, err, "source write dataFrame must be success")
time.Sleep(time.Second)
w.assertEqual(t, dataFrame)
// TODO: closing server many times is blocking.
assert.NoError(t, server.Close(), "server.Close() should not return error")
assert.NoError(t, source.Close(), "source client.Close() should not return error")
assert.NoError(t, sfn.Close(), "sfn client.Close() should not return error")
}
type hookTester struct {
t *testing.T
}
func (a *hookTester) startHandler(ctx *Context) error {
ctx.Set("start", "yes")
return nil
}
func (a *hookTester) beforeHandler(ctx *Context) error {
ctx.Set("before", "ok")
return nil
}
func (a *hookTester) afterHandler(ctx *Context) error {
v, ok := ctx.Get("start")
assert.True(a.t, ok)
assert.Equal(a.t, v, "yes")
v, ok = ctx.Get("before")
assert.True(a.t, ok)
assert.Equal(a.t, v, "ok")
return nil
}
// mockFrameWriter mock a FrameWriter
type mockFrameWriter struct {
mu sync.Mutex
buf *bytes.Buffer
}
func newMockFrameWriter() *mockFrameWriter { return &mockFrameWriter{buf: bytes.NewBuffer([]byte{})} }
func (w *mockFrameWriter) WriteFrame(frm frame.Frame) error {
w.mu.Lock()
defer w.mu.Unlock()
_, err := w.buf.Write(frm.Encode())
return err
}
func (w *mockFrameWriter) assertEqual(t *testing.T, frm frame.Frame) {
w.mu.Lock()
defer w.mu.Unlock()
assert.Equal(t, w.buf.Bytes(), frm.Encode())
}