github.com/Aayushi-Bansal/sys@v0.0.0-20180118120756-90d962a959d8/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  // +build go1.7
     6  
     7  package unix_test
     8  
     9  import (
    10  	"fmt"
    11  	"testing"
    12  
    13  	"golang.org/x/sys/unix"
    14  )
    15  
    16  func TestDevices(t *testing.T) {
    17  	testCases := []struct {
    18  		path  string
    19  		major uint32
    20  		minor uint32
    21  	}{
    22  		// Well-known major/minor numbers on OpenSolaris according to
    23  		// /etc/name_to_major
    24  		{"/dev/zero", 134, 12},
    25  		{"/dev/null", 134, 2},
    26  		{"/dev/ptyp0", 172, 0},
    27  		{"/dev/ttyp0", 175, 0},
    28  		{"/dev/ttyp1", 175, 1},
    29  	}
    30  	for _, tc := range testCases {
    31  		t.Run(fmt.Sprintf("%s %v:%v", tc.path, tc.major, tc.minor), func(t *testing.T) {
    32  			var stat unix.Stat_t
    33  			err := unix.Stat(tc.path, &stat)
    34  			if err != nil {
    35  				t.Errorf("failed to stat device: %v", err)
    36  				return
    37  			}
    38  
    39  			dev := uint64(stat.Rdev)
    40  			if unix.Major(dev) != tc.major {
    41  				t.Errorf("for %s Major(%#x) == %d, want %d", tc.path, dev, unix.Major(dev), tc.major)
    42  			}
    43  			if unix.Minor(dev) != tc.minor {
    44  				t.Errorf("for %s Minor(%#x) == %d, want %d", tc.path, dev, unix.Minor(dev), tc.minor)
    45  			}
    46  			if unix.Mkdev(tc.major, tc.minor) != dev {
    47  				t.Errorf("for %s Mkdev(%d, %d) == %#x, want %#x", tc.path, tc.major, tc.minor, unix.Mkdev(tc.major, tc.minor), dev)
    48  			}
    49  		})
    50  	}
    51  }