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conn_test.go
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121 lines (111 loc) · 2.48 KB
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package zsocket
import (
"context"
"io"
"net"
"testing"
"time"
)
func testPair(t *testing.T) (*Conn, *Conn) {
t.Helper()
return testPairWithCfg(t, func(cfg *Config) {})
}
func testPairWithCfg(t *testing.T, mutate func(cfg *Config)) (*Conn, *Conn) {
t.Helper()
a, b := net.Pipe()
cfg := DefaultConfig()
cfg.PingInterval = 0
cfg.PongWait = 0
if mutate != nil {
mutate(&cfg)
}
left, err := newConn(a, cfg, "", true)
if err != nil {
t.Fatalf("newConn left: %v", err)
}
right, err := newConn(b, cfg, "", false)
if err != nil {
t.Fatalf("newConn right: %v", err)
}
t.Cleanup(func() {
_ = left.raw.Close()
_ = right.raw.Close()
})
return left, right
}
func TestNextWriterAndReader(t *testing.T) {
client, server := testPair(t)
type readResult struct {
mt MessageType
msg string
err error
}
resCh := make(chan readResult, 1)
go func() {
mt, r, err := server.NextReader()
if err != nil {
resCh <- readResult{err: err}
return
}
b, err := io.ReadAll(r)
if err != nil {
resCh <- readResult{err: err}
return
}
resCh <- readResult{mt: mt, msg: string(b)}
}()
w, err := client.NextWriter(TextMessage)
if err != nil {
t.Fatalf("NextWriter: %v", err)
}
if _, err := w.Write([]byte("hello")); err != nil {
t.Fatalf("writer.Write: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("writer.Close: %v", err)
}
res := <-resCh
if res.err != nil {
t.Fatalf("NextReader: %v", res.err)
}
if res.mt != TextMessage {
t.Fatalf("message type = %v, want %v", res.mt, TextMessage)
}
if res.msg != "hello" {
t.Fatalf("payload = %q, want hello", res.msg)
}
}
func TestSetReadDeadline(t *testing.T) {
_, server := testPair(t)
if err := server.SetReadDeadline(time.Now().Add(10 * time.Millisecond)); err != nil {
t.Fatalf("SetReadDeadline: %v", err)
}
_, _, err := server.Read(context.Background())
if err == nil {
t.Fatalf("expected read timeout error")
}
}
func TestCompressionRoundTrip(t *testing.T) {
client, server := testPairWithCfg(t, func(cfg *Config) {
cfg.EnableCompression = true
})
errCh := make(chan error, 1)
go func() {
_, got, err := server.Read(context.Background())
if err != nil {
errCh <- err
return
}
if string(got) != "compressed payload" {
errCh <- io.ErrUnexpectedEOF
return
}
errCh <- nil
}()
if err := client.Write(context.Background(), TextMessage, []byte("compressed payload")); err != nil {
t.Fatalf("Write: %v", err)
}
if err := <-errCh; err != nil {
t.Fatalf("Read: %v", err)
}
}