87 lines
2.4 KiB
Go
87 lines
2.4 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 gousb
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import "testing"
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func TestListDevices(t *testing.T) {
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_, done := newFakeLibusb()
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defer done()
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c := NewContext()
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defer c.Close()
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c.Debug(0)
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descs := []*Descriptor{}
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devs, err := c.ListDevices(func(desc *Descriptor) bool {
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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("ListDevices(): %s", err)
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}
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if got, want := len(devs), len(fakeDevices); got != want {
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t.Fatalf("len(devs) = %d, want %d (based on num fake devs)", got, want)
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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 (based on num opened devices)", 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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_, done := newFakeLibusb()
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defer done()
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for _, d := range []struct {
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vid, pid ID
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exists bool
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}{
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{0x7777, 0x0003, false},
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{0x8888, 0x0001, false},
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{0x8888, 0x0002, true},
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{0x9999, 0x0001, true},
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{0x9999, 0x0002, false},
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} {
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c := NewContext()
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defer c.Close()
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dev, err := c.OpenDeviceWithVIDPID(d.vid, d.pid)
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if (dev != nil) != d.exists {
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t.Errorf("OpenDeviceWithVIDPID(%s/%s): device != nil is %v, want %v", ID(d.vid), ID(d.pid), dev != nil, d.exists)
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}
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if err != nil {
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t.Errorf("OpenDeviceWithVIDPID(%s/%s): got error %v, want nil", ID(d.vid), ID(d.pid), err)
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}
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if dev != nil {
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if dev.Descriptor.Vendor != ID(d.vid) || dev.Descriptor.Product != ID(d.pid) {
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t.Errorf("OpenDeviceWithVIDPID(%s/%s): the device returned has VID/PID %s/%s, different from specified in the arguments", ID(d.vid), ID(d.pid), dev.Descriptor.Vendor, dev.Descriptor.Product)
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}
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dev.Close()
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}
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}
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}
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