mirror of
https://github.com/fatedier/frp.git
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83 lines
2.6 KiB
Go
83 lines
2.6 KiB
Go
// Copyright 2026 The frp Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package msg
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import (
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"bytes"
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"errors"
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"io"
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"testing"
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)
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// Preserve the original exported constructor function type.
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var _ func(ReadWriter) *Dispatcher = NewDispatcher
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func TestDispatcherEnqueueRejectsStoppedDispatcher(t *testing.T) {
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c := newRegressionControl(t)
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d := NewDispatcher(c)
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d.stop()
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// Model shutdown after Send's initial check: the stop and buffered send
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// cases are both ready. A send selected here must still return EOF.
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if err := d.enqueue(&ReqWorkConn{}); !errors.Is(err, io.EOF) {
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t.Fatalf("enqueue racing with shutdown: %v, want EOF", err)
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}
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// This single call checks that a stopped dispatcher's enqueue returns EOF; it
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// does not guarantee exercising the send case and post-enqueue check on every run.
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if len(d.sendCh) > 0 {
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t.Log("selected the send case; post-enqueue check returned EOF")
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}
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}
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func TestDispatcherAcceptsReadWriterWithoutClose(t *testing.T) {
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t.Run("codec factory", func(t *testing.T) {
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d := NewDispatcher(NewV1ReadWriter(&bytes.Buffer{}))
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d.Run()
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regressionAwait(t, d.Done(), "non-closable codec EOF")
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})
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t.Run("write failure", func(t *testing.T) {
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c := newRegressionControl(t)
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regressionWarm(t, c)
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// Hide Close to model an existing caller implementing only ReadWriter.
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d := NewDispatcher(struct{ ReadWriter }{c})
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d.Run()
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t.Cleanup(func() {
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c.transport.close()
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regressionAwait(t, d.Done(), "externally interrupted reader")
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})
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c.transport.arm()
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if err := d.Send(&ReqWorkConn{}); err != nil && !errors.Is(err, io.EOF) {
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t.Fatal(err)
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}
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if err := regressionReceiveWrite(t, c); !errors.Is(err, errRegressionWriteTimeout) {
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t.Fatalf("injected write failure: %v", err)
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}
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regressionAwait(t, d.stopCh, "write failure stops sends")
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if err := d.Send(&ReqWorkConn{}); !errors.Is(err, io.EOF) {
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t.Fatalf("Send after write failure: %v, want EOF", err)
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}
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if c.closeCalls.Load() != 0 {
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t.Fatal("dispatcher closed a connection hidden by ReadWriter")
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}
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select {
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case <-d.Done():
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t.Fatal("Done closed before the non-closable reader returned")
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default:
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}
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})
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}
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