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  }