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d8da00355e
Go 1.17 introduce this new (and better) way to specify build tags. For more info, see https://golang.org/design/draft-gobuild. As a way to seamlessly switch from old to new build tags, gofmt (and gopls) from go 1.17 adds the new tags along with the old ones. Later, when go < 1.17 is no longer supported, the old build tags can be removed. Now, as I started to use latest gopls (v0.7.1), it adds these tags while I edit. Rather than to randomly add new build tags, I guess it is better to do it once for all files. Mind that previous commits removed some tags that were useless, so this one only touches packages that can at least be built on non-linux. Brought to you by go1.17 fmt ./... Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
98 lines
2.1 KiB
Go
98 lines
2.1 KiB
Go
//go:build !windows
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// +build !windows
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package devices
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import (
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"errors"
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"io/ioutil"
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"os"
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"testing"
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"golang.org/x/sys/unix"
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)
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func cleanupTest() {
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unixLstat = unix.Lstat
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ioutilReadDir = ioutil.ReadDir
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}
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func TestDeviceFromPathLstatFailure(t *testing.T) {
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testError := errors.New("test error")
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// Override unix.Lstat to inject error.
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unixLstat = func(path string, stat *unix.Stat_t) error {
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return testError
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}
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defer cleanupTest()
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_, err := DeviceFromPath("", "")
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if !errors.Is(err, testError) {
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t.Fatalf("Unexpected error %v, expected %v", err, testError)
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}
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}
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func TestHostDevicesIoutilReadDirFailure(t *testing.T) {
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testError := errors.New("test error")
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// Override ioutil.ReadDir to inject error.
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ioutilReadDir = func(dirname string) ([]os.FileInfo, error) {
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return nil, testError
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}
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defer cleanupTest()
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_, err := HostDevices()
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if !errors.Is(err, testError) {
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t.Fatalf("Unexpected error %v, expected %v", err, testError)
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}
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}
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func TestHostDevicesIoutilReadDirDeepFailure(t *testing.T) {
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testError := errors.New("test error")
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called := false
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// Override ioutil.ReadDir to inject error after the first call.
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ioutilReadDir = func(dirname string) ([]os.FileInfo, error) {
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if called {
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return nil, testError
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}
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called = true
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// Provoke a second call.
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fi, err := os.Lstat("/tmp")
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if err != nil {
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t.Fatalf("Unexpected error %v", err)
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}
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return []os.FileInfo{fi}, nil
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}
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defer cleanupTest()
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_, err := HostDevices()
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if !errors.Is(err, testError) {
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t.Fatalf("Unexpected error %v, expected %v", err, testError)
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}
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}
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func TestHostDevicesAllValid(t *testing.T) {
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devices, err := HostDevices()
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if err != nil {
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t.Fatalf("failed to get host devices: %v", err)
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}
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for _, device := range devices {
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// Devices can't have major number 0.
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if device.Major == 0 {
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t.Errorf("device entry %+v has zero major number", device)
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}
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switch device.Type {
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case BlockDevice, CharDevice:
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case FifoDevice:
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t.Logf("fifo devices shouldn't show up from HostDevices")
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fallthrough
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default:
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t.Errorf("device entry %+v has unexpected type %v", device, device.Type)
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}
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}
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}
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