150 lines
3.1 KiB
Go
150 lines
3.1 KiB
Go
/*
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*
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* Copyright 2017 gRPC 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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*
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*/
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package bufconn
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import (
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"fmt"
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"io"
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"net"
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"reflect"
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"testing"
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"time"
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)
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func testRW(r io.Reader, w io.Writer) error {
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for i := 0; i < 20; i++ {
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d := make([]byte, i)
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for j := 0; j < i; j++ {
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d[j] = byte(i - j)
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}
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var rn int
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var rerr error
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b := make([]byte, i)
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done := make(chan struct{})
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go func() {
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for rn < len(b) && rerr == nil {
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var x int
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x, rerr = r.Read(b[rn:])
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rn += x
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}
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close(done)
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}()
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wn, werr := w.Write(d)
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if wn != i || werr != nil {
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return fmt.Errorf("%v: w.Write(%v) = %v, %v; want %v, nil", i, d, wn, werr, i)
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}
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select {
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case <-done:
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case <-time.After(500 * time.Millisecond):
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return fmt.Errorf("%v: r.Read never returned", i)
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}
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if rn != i || rerr != nil {
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return fmt.Errorf("%v: r.Read = %v, %v; want %v, nil", i, rn, rerr, i)
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}
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if !reflect.DeepEqual(b, d) {
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return fmt.Errorf("%v: r.Read read %v; want %v", i, b, d)
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}
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}
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return nil
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}
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func TestPipe(t *testing.T) {
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p := newPipe(10)
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if err := testRW(p, p); err != nil {
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t.Fatalf(err.Error())
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}
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}
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func TestPipeClose(t *testing.T) {
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p := newPipe(10)
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p.Close()
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if _, err := p.Write(nil); err != io.ErrClosedPipe {
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t.Fatalf("p.Write = _, %v; want _, %v", err, io.ErrClosedPipe)
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}
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if _, err := p.Read(nil); err != io.ErrClosedPipe {
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t.Fatalf("p.Read = _, %v; want _, %v", err, io.ErrClosedPipe)
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}
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}
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func TestConn(t *testing.T) {
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p1, p2 := newPipe(10), newPipe(10)
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c1, c2 := &conn{p1, p2}, &conn{p2, p1}
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if err := testRW(c1, c2); err != nil {
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t.Fatalf(err.Error())
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}
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if err := testRW(c2, c1); err != nil {
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t.Fatalf(err.Error())
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}
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}
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func TestListener(t *testing.T) {
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l := Listen(7)
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var s net.Conn
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var serr error
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done := make(chan struct{})
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go func() {
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s, serr = l.Accept()
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close(done)
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}()
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c, cerr := l.Dial()
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<-done
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if cerr != nil || serr != nil {
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t.Fatalf("cerr = %v, serr = %v; want nil, nil", cerr, serr)
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}
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if err := testRW(c, s); err != nil {
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t.Fatalf(err.Error())
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}
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if err := testRW(s, c); err != nil {
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t.Fatalf(err.Error())
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}
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}
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func TestCloseWhileDialing(t *testing.T) {
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l := Listen(7)
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var c net.Conn
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var err error
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done := make(chan struct{})
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go func() {
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c, err = l.Dial()
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close(done)
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}()
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l.Close()
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<-done
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if c != nil || err != errClosed {
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t.Fatalf("c, err = %v, %v; want nil, %v", c, err, errClosed)
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}
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}
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func TestCloseWhileAccepting(t *testing.T) {
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l := Listen(7)
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var c net.Conn
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var err error
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done := make(chan struct{})
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go func() {
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c, err = l.Accept()
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close(done)
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}()
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l.Close()
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<-done
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if c != nil || err != errClosed {
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t.Fatalf("c, err = %v, %v; want nil, %v", c, err, errClosed)
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}
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}
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