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// +build linux
package udev
import (
"fmt"
"runtime"
"testing"
)
func ExampleDevice() {
// Create Udev
u := Udev{}
// Create new Device based on subsystem and sysname
d := u.NewDeviceFromSubsystemSysname("mem", "zero")
// Extract information
fmt.Printf("Sysname:%v\n", d.Sysname())
fmt.Printf("Syspath:%v\n", d.Syspath())
fmt.Printf("Devpath:%v\n", d.Devpath())
fmt.Printf("Devnode:%v\n", d.Devnode())
fmt.Printf("Subsystem:%v\n", d.Subsystem())
fmt.Printf("Devtype:%v\n", d.Devtype())
fmt.Printf("Sysnum:%v\n", d.Sysnum())
fmt.Printf("IsInitialized:%v\n", d.IsInitialized())
fmt.Printf("Driver:%v\n", d.Driver())
// Use one of the iterators
it := d.PropertyIterator()
it.Each(func(item interface{}) {
kv := item.([]string)
_ = fmt.Sprintf("Property:%v=%v\n", kv[0], kv[1])
})
// Output:
// Sysname:zero
// Syspath:/sys/devices/virtual/mem/zero
// Devpath:/devices/virtual/mem/zero
// Devnode:/dev/zero
// Subsystem:mem
// Devtype:
// Sysnum:
// IsInitialized:true
// Driver:
}
func TestDeviceZero(t *testing.T) {
u := Udev{}
d := u.NewDeviceFromDeviceID("c1:5")
if d.Subsystem() != "mem" {
t.Fail()
}
if d.Sysname() != "zero" {
t.Fail()
}
if d.Syspath() != "/sys/devices/virtual/mem/zero" {
t.Fail()
}
if d.Devnode() != "/dev/zero" {
t.Fail()
}
if d.PropertyValue("SUBSYSTEM") != "mem" {
t.Fail()
}
if !d.IsInitialized() {
t.Fail()
}
if d.SysattrValue("subsystem") != "mem" {
t.Fail()
}
// Device should have Properties
properties := d.Properties()
if len(properties) == 0 {
t.Fail()
}
// Device should have Sysattrs
sysattrs := d.Sysattrs()
if len(sysattrs) == 0 {
t.Fail()
}
it := d.PropertyIterator()
it.Each(func(item interface{}) {
_ = item.([]string)
})
}
func TestDeviceGC(t *testing.T) {
runtime.GC()
}
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