Thanos did someting

[bytom/vapor.git] / vendor / golang.org / x / net / ipv4 / bpf_test.go

diff --git a/vendor/golang.org/x/net/ipv4/bpf_test.go b/vendor/golang.org/x/net/ipv4/bpf_test.go
deleted file mode 100644 (file)
index b44da90..0000000
--- a/vendor/golang.org/x/net/ipv4/bpf_test.go
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ipv4_test
-
-import (
-       "net"
-       "runtime"
-       "testing"
-       "time"
-
-       "golang.org/x/net/bpf"
-       "golang.org/x/net/ipv4"
-)
-
-func TestBPF(t *testing.T) {
-       if runtime.GOOS != "linux" {
-               t.Skipf("not supported on %s", runtime.GOOS)
-       }
-
-       l, err := net.ListenPacket("udp4", "127.0.0.1:0")
-       if err != nil {
-               t.Fatal(err)
-       }
-       defer l.Close()
-
-       p := ipv4.NewPacketConn(l)
-
-       // This filter accepts UDP packets whose first payload byte is
-       // even.
-       prog, err := bpf.Assemble([]bpf.Instruction{
-               // Load the first byte of the payload (skipping UDP header).
-               bpf.LoadAbsolute{Off: 8, Size: 1},
-               // Select LSB of the byte.
-               bpf.ALUOpConstant{Op: bpf.ALUOpAnd, Val: 1},
-               // Byte is even?
-               bpf.JumpIf{Cond: bpf.JumpEqual, Val: 0, SkipFalse: 1},
-               // Accept.
-               bpf.RetConstant{Val: 4096},
-               // Ignore.
-               bpf.RetConstant{Val: 0},
-       })
-       if err != nil {
-               t.Fatalf("compiling BPF: %s", err)
-       }
-
-       if err = p.SetBPF(prog); err != nil {
-               t.Fatalf("attaching filter to Conn: %s", err)
-       }
-
-       s, err := net.Dial("udp4", l.LocalAddr().String())
-       if err != nil {
-               t.Fatal(err)
-       }
-       defer s.Close()
-       go func() {
-               for i := byte(0); i < 10; i++ {
-                       s.Write([]byte{i})
-               }
-       }()
-
-       l.SetDeadline(time.Now().Add(2 * time.Second))
-       seen := make([]bool, 5)
-       for {
-               var b [512]byte
-               n, _, err := l.ReadFrom(b[:])
-               if err != nil {
-                       t.Fatalf("reading from listener: %s", err)
-               }
-               if n != 1 {
-                       t.Fatalf("unexpected packet length, want 1, got %d", n)
-               }
-               if b[0] >= 10 {
-                       t.Fatalf("unexpected byte, want 0-9, got %d", b[0])
-               }
-               if b[0]%2 != 0 {
-                       t.Fatalf("got odd byte %d, wanted only even bytes", b[0])
-               }
-               seen[b[0]/2] = true
-
-               seenAll := true
-               for _, v := range seen {
-                       if !v {
-                               seenAll = false
-                               break
-                       }
-               }
-               if seenAll {
-                       break
-               }
-       }
-}