1 // Copyright 2014 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // +build darwin dragonfly freebsd openbsd 6 7 package syscall_test 8 9 import ( 10 "os/exec" 11 "syscall" 12 "testing" 13 ) 14 15 const MNT_WAIT = 1 16 const MNT_NOWAIT = 2 17 18 func TestGetfsstat(t *testing.T) { 19 const flags = MNT_NOWAIT // see Issue 16937 20 n, err := syscall.Getfsstat(nil, flags) 21 t.Logf("Getfsstat(nil, %d) = (%v, %v)", flags, n, err) 22 if err != nil { 23 t.Fatal(err) 24 } 25 26 data := make([]syscall.Statfs_t, n) 27 n2, err := syscall.Getfsstat(data, flags) 28 t.Logf("Getfsstat([]syscall.Statfs_t, %d) = (%v, %v)", flags, n2, err) 29 if err != nil { 30 t.Fatal(err) 31 } 32 if n != n2 { 33 t.Errorf("Getfsstat(nil) = %d, but subsequent Getfsstat(slice) = %d", n, n2) 34 } 35 for i, stat := range data { 36 if stat == (syscall.Statfs_t{}) { 37 t.Errorf("index %v is an empty Statfs_t struct", i) 38 } 39 } 40 if t.Failed() { 41 for i, stat := range data[:n2] { 42 t.Logf("data[%v] = %+v", i, stat) 43 } 44 mount, err := exec.Command("mount").CombinedOutput() 45 if err != nil { 46 t.Logf("mount: %v\n%s", err, mount) 47 } else { 48 t.Logf("mount: %s", mount) 49 } 50 } 51 } 52
