github.com/dolotech/hongbao@v0.0.0-20191130105438-fd59d7a5dda5/src/golang.org/x/sys/unix/dev_solaris_test.go (about) 1 // Copyright 2017 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 package unix_test 6 7 import ( 8 "fmt" 9 "testing" 10 11 "golang.org/x/sys/unix" 12 ) 13 14 func TestDevices(t *testing.T) { 15 testCases := []struct { 16 path string 17 major uint32 18 minor uint32 19 }{ 20 // Well-known major/minor numbers on OpenSolaris according to 21 // /etc/name_to_major 22 {"/dev/zero", 134, 12}, 23 {"/dev/null", 134, 2}, 24 {"/dev/ptyp0", 172, 0}, 25 {"/dev/ttyp0", 175, 0}, 26 {"/dev/ttyp1", 175, 1}, 27 } 28 for _, tc := range testCases { 29 t.Run(fmt.Sprintf("%s %v:%v", tc.path, tc.major, tc.minor), func(t *testing.T) { 30 var stat unix.Stat_t 31 err := unix.Stat(tc.path, &stat) 32 if err != nil { 33 t.Errorf("failed to stat device: %v", err) 34 return 35 } 36 37 dev := uint64(stat.Rdev) 38 if unix.Major(dev) != tc.major { 39 t.Errorf("for %s Major(%#x) == %d, want %d", tc.path, dev, unix.Major(dev), tc.major) 40 } 41 if unix.Minor(dev) != tc.minor { 42 t.Errorf("for %s Minor(%#x) == %d, want %d", tc.path, dev, unix.Minor(dev), tc.minor) 43 } 44 if unix.Mkdev(tc.major, tc.minor) != dev { 45 t.Errorf("for %s Mkdev(%d, %d) == %#x, want %#x", tc.path, tc.major, tc.minor, unix.Mkdev(tc.major, tc.minor), dev) 46 } 47 }) 48 } 49 }