mirror of
https://github.com/soypat/lneto.git
synced 2026-07-26 10:38:47 +00:00
Pat Whittingslow
75a812a8d7
* start working on tracking down tcp buffer bug * mtu refactor * modularize test * more precise testing * tests fail, but is it the failure we are looking for? * fix typo in espradio link (#76) * implement a new backoff abstraction (#75) * rewrite backoff api * rewrite tcp.Conn.Write * keep fixing small things * much better Conn.Read implementation * fix critical overflow bug in internal.ConnRWBackoff --------- Co-authored-by: Joel Wetzell <jwetzell@yahoo.com>
105 lines
2.6 KiB
Go
105 lines
2.6 KiB
Go
package xnet
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import (
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"os"
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"testing"
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"time"
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"github.com/soypat/lneto/ethernet"
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"github.com/soypat/lneto/tcp"
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)
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func TestTCPConn_SetDeadline_Established(t *testing.T) {
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const seed = 9999
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const MTU = ethernet.MaxMTU
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const svPort = 8080
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client, sv, clconn, svconn := newTCPStacks(t, seed, MTU)
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tst := testerFrom(t, MTU)
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tst.TestTCPSetupAndEstablish(sv, client, svconn, clconn, svPort, 1337)
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if clconn.State() != tcp.StateEstablished {
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t.Fatalf("expected StateEstablished, got %s", clconn.State())
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}
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// SetDeadline should succeed on established connection.
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err := clconn.SetDeadline(time.Now().Add(time.Hour))
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if err != nil {
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t.Fatalf("SetDeadline on established conn failed: %v", err)
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}
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// Clear deadlines.
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err = clconn.SetDeadline(time.Time{})
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if err != nil {
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t.Fatalf("SetDeadline(zero) failed: %v", err)
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}
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_ = sv
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}
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func TestTCPConn_ReadDeadlineExceeded(t *testing.T) {
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const seed = 10001
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const MTU = ethernet.MaxMTU
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const svPort = 8080
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client, sv, clconn, svconn := newTCPStacks(t, seed, MTU)
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tst := testerFrom(t, MTU)
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tst.TestTCPSetupAndEstablish(sv, client, svconn, clconn, svPort, 1337)
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// Set read deadline in the past.
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err := svconn.SetReadDeadline(time.Now().Add(-time.Second))
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if err != nil {
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t.Fatal(err)
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}
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// Read should fail immediately with deadline exceeded.
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buf := make([]byte, 64)
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_, rerr := svconn.Read(buf)
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if rerr == nil {
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t.Fatal("Read with past deadline should fail")
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}
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if rerr != os.ErrDeadlineExceeded {
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t.Fatalf("expected os.ErrDeadlineExceeded, got %v", rerr)
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}
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}
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func TestTCPConn_WriteDeadlineExceeded(t *testing.T) {
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const seed = 10002
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const MTU = ethernet.MaxMTU
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const svPort = 8080
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client, sv, clconn, svconn := newTCPStacks(t, seed, MTU)
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tst := testerFrom(t, MTU)
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tst.TestTCPSetupAndEstablish(sv, client, svconn, clconn, svPort, 1337)
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// Set write deadline in the past.
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err := clconn.SetWriteDeadline(time.Now().Add(-time.Second))
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if err != nil {
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t.Fatal(err)
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}
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// Write should fail immediately with deadline exceeded.
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_, werr := clconn.Write([]byte("hello"))
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if werr == nil {
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t.Fatal("Write with past deadline should fail")
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}
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if werr != os.ErrDeadlineExceeded {
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t.Fatalf("expected os.ErrDeadlineExceeded, got %v", werr)
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}
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}
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func TestTCPConn_FlushEmptyNoop(t *testing.T) {
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const seed = 10003
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const MTU = ethernet.MaxMTU
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const svPort = 8080
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client, sv, clconn, svconn := newTCPStacks(t, seed, MTU)
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tst := testerFrom(t, MTU)
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tst.TestTCPSetupAndEstablish(sv, client, svconn, clconn, svPort, 1337)
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// Flush with no unsent data should return nil immediately.
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err := clconn.Flush()
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if err != nil {
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t.Fatalf("Flush with no unsent data should succeed: %v", err)
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}
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}
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