143 lines
3.2 KiB
Go
143 lines
3.2 KiB
Go
// Copyright 2013 Google Inc. All rights reserved.
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// Copyright 2016 the gousb Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package usb_test
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import (
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"bytes"
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"log"
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"os"
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"testing"
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. "github.com/kylelemons/gousb/usb"
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"github.com/kylelemons/gousb/usbid"
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)
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func TestNoop(t *testing.T) {
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c := NewContext()
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defer c.Close()
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c.Debug(0)
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}
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func TestEnum(t *testing.T) {
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c := NewContext()
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defer c.Close()
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c.Debug(0)
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logDevice := func(t *testing.T, desc *Descriptor) {
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t.Logf("%03d.%03d %s", desc.Bus, desc.Address, usbid.Describe(desc))
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t.Logf("- Protocol: %s", usbid.Classify(desc))
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for _, cfg := range desc.Configs {
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t.Logf("- %s:", cfg)
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for _, alt := range cfg.Interfaces {
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t.Logf(" --------------")
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for _, iface := range alt.Setups {
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t.Logf(" - %s", iface)
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t.Logf(" - %s", usbid.Classify(iface))
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for _, end := range iface.Endpoints {
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t.Logf(" - %s (packet size: %d bytes)", end, end.MaxPacketSize)
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}
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}
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}
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t.Logf(" --------------")
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}
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}
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descs := []*Descriptor{}
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devs, err := c.ListDevices(func(desc *Descriptor) bool {
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logDevice(t, desc)
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descs = append(descs, desc)
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return true
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})
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defer func() {
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for _, d := range devs {
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d.Close()
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}
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}()
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if err != nil {
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t.Fatalf("list: %s", err)
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}
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if got, want := len(devs), len(descs); got != want {
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t.Fatalf("len(devs) = %d, want %d", got, want)
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}
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for i := range devs {
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if got, want := devs[i].Descriptor, descs[i]; got != want {
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t.Errorf("dev[%d].Descriptor = %p, want %p", i, got, want)
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}
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}
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}
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func TestOpenDeviceWithVidPid(t *testing.T) {
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c := NewContext()
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defer c.Close()
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c.Debug(0)
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// Accept for all device
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devs, err := c.ListDevices(func(desc *Descriptor) bool {
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return true
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})
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defer func() {
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for _, d := range devs {
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d.Close()
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}
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}()
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if err != nil {
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t.Fatalf("list: %s", err)
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}
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for i := range devs {
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vid := devs[i].Vendor
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pid := devs[i].Product
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device, err := c.OpenDeviceWithVidPid((int)(vid), (int)(pid))
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// if the context failed to open device
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if err != nil {
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t.Fail()
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}
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// if opened device was not valid
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if device.Descriptor.Bus != devs[i].Bus ||
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device.Descriptor.Address != devs[i].Address ||
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device.Vendor != devs[i].Vendor ||
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device.Product != devs[i].Product {
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t.Fail()
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}
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}
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}
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func TestMultipleContexts(t *testing.T) {
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var buf bytes.Buffer
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log.SetOutput(&buf)
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for i := 0; i < 2; i++ {
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ctx := NewContext()
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_, err := ctx.ListDevices(func(desc *Descriptor) bool {
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return false
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})
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if err != nil {
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t.Fatal(err)
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}
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ctx.Close()
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}
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log.SetOutput(os.Stderr)
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if buf.Len() > 0 {
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t.Errorf("Non zero output to log, while testing: %s", buf.String())
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}
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}
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