1 files changed, 151 insertions, 0 deletions
diff --git a/src/net/interface_unix_test.go b/src/net/interface_unix_test.go
new file mode 100644
index 000000000..01f609f15
--- /dev/null
+++ b/src/net/interface_unix_test.go
@@ -0,0 +1,151 @@
+// Copyright 2013 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.
+
+// +build darwin dragonfly freebsd linux netbsd openbsd
+
+package net
+
+import (
+	"os"
+	"os/exec"
+	"runtime"
+	"testing"
+	"time"
+)
+
+type testInterface struct {
+	name         string
+	local        string
+	remote       string
+	setupCmds    []*exec.Cmd
+	teardownCmds []*exec.Cmd
+}
+
+func (ti *testInterface) setup() error {
+	for _, cmd := range ti.setupCmds {
+		if err := cmd.Run(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (ti *testInterface) teardown() error {
+	for _, cmd := range ti.teardownCmds {
+		if err := cmd.Run(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func TestPointToPointInterface(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping test in short mode")
+	}
+	switch {
+	case runtime.GOOS == "darwin":
+		t.Skipf("skipping read test on %q", runtime.GOOS)
+	}
+	if os.Getuid() != 0 {
+		t.Skip("skipping test; must be root")
+	}
+
+	local, remote := "169.254.0.1", "169.254.0.254"
+	ip := ParseIP(remote)
+	for i := 0; i < 3; i++ {
+		ti := &testInterface{}
+		if err := ti.setPointToPoint(5963+i, local, remote); err != nil {
+			t.Skipf("test requries external command: %v", err)
+		}
+		if err := ti.setup(); err != nil {
+			t.Fatalf("testInterface.setup failed: %v", err)
+		} else {
+			time.Sleep(3 * time.Millisecond)
+		}
+		ift, err := Interfaces()
+		if err != nil {
+			ti.teardown()
+			t.Fatalf("Interfaces failed: %v", err)
+		}
+		for _, ifi := range ift {
+			if ti.name == ifi.Name {
+				ifat, err := ifi.Addrs()
+				if err != nil {
+					ti.teardown()
+					t.Fatalf("Interface.Addrs failed: %v", err)
+				}
+				for _, ifa := range ifat {
+					if ip.Equal(ifa.(*IPNet).IP) {
+						ti.teardown()
+						t.Fatalf("got %v; want %v", ip, local)
+					}
+				}
+			}
+		}
+		if err := ti.teardown(); err != nil {
+			t.Fatalf("testInterface.teardown failed: %v", err)
+		} else {
+			time.Sleep(3 * time.Millisecond)
+		}
+	}
+}
+
+func TestInterfaceArrivalAndDeparture(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping test in short mode")
+	}
+	if os.Getuid() != 0 {
+		t.Skip("skipping test; must be root")
+	}
+
+	for i := 0; i < 3; i++ {
+		ift1, err := Interfaces()
+		if err != nil {
+			t.Fatalf("Interfaces failed: %v", err)
+		}
+		ti := &testInterface{}
+		if err := ti.setBroadcast(5682 + i); err != nil {
+			t.Skipf("test requires external command: %v", err)
+		}
+		if err := ti.setup(); err != nil {
+			t.Fatalf("testInterface.setup failed: %v", err)
+		} else {
+			time.Sleep(3 * time.Millisecond)
+		}
+		ift2, err := Interfaces()
+		if err != nil {
+			ti.teardown()
+			t.Fatalf("Interfaces failed: %v", err)
+		}
+		if len(ift2) <= len(ift1) {
+			for _, ifi := range ift1 {
+				t.Logf("before: %v", ifi)
+			}
+			for _, ifi := range ift2 {
+				t.Logf("after: %v", ifi)
+			}
+			ti.teardown()
+			t.Fatalf("got %v; want gt %v", len(ift2), len(ift1))
+		}
+		if err := ti.teardown(); err != nil {
+			t.Fatalf("testInterface.teardown failed: %v", err)
+		} else {
+			time.Sleep(3 * time.Millisecond)
+		}
+		ift3, err := Interfaces()
+		if err != nil {
+			t.Fatalf("Interfaces failed: %v", err)
+		}
+		if len(ift3) >= len(ift2) {
+			for _, ifi := range ift2 {
+				t.Logf("before: %v", ifi)
+			}
+			for _, ifi := range ift3 {
+				t.Logf("after: %v", ifi)
+			}
+			t.Fatalf("got %v; want lt %v", len(ift3), len(ift2))
+		}
+	}
+}