Move files from gousb/usb to gousb

usb_test.go

@@ -0,0 +1,86 @@
+// Copyright 2013 Google Inc.  All rights reserved.
+// Copyright 2016 the gousb Authors.  All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package gousb
+
+import "testing"
+
+func TestListDevices(t *testing.T) {
+	_, done := newFakeLibusb()
+	defer done()
+
+	c := NewContext()
+	defer c.Close()
+	c.Debug(0)
+
+	descs := []*Descriptor{}
+	devs, err := c.ListDevices(func(desc *Descriptor) bool {
+		descs = append(descs, desc)
+		return true
+	})
+	defer func() {
+		for _, d := range devs {
+			d.Close()
+		}
+	}()
+	if err != nil {
+		t.Fatalf("ListDevices(): %s", err)
+	}
+
+	if got, want := len(devs), len(fakeDevices); got != want {
+		t.Fatalf("len(devs) = %d, want %d (based on num fake devs)", got, want)
+	}
+	if got, want := len(devs), len(descs); got != want {
+		t.Fatalf("len(devs) = %d, want %d (based on num opened devices)", got, want)
+	}
+
+	for i := range devs {
+		if got, want := devs[i].Descriptor, descs[i]; got != want {
+			t.Errorf("dev[%d].Descriptor = %p, want %p", i, got, want)
+		}
+	}
+}
+
+func TestOpenDeviceWithVIDPID(t *testing.T) {
+	_, done := newFakeLibusb()
+	defer done()
+
+	for _, d := range []struct {
+		vid, pid ID
+		exists   bool
+	}{
+		{0x7777, 0x0003, false},
+		{0x8888, 0x0001, false},
+		{0x8888, 0x0002, true},
+		{0x9999, 0x0001, true},
+		{0x9999, 0x0002, false},
+	} {
+		c := NewContext()
+		defer c.Close()
+		dev, err := c.OpenDeviceWithVIDPID(d.vid, d.pid)
+		if (dev != nil) != d.exists {
+			t.Errorf("OpenDeviceWithVIDPID(%s/%s): device != nil is %v, want %v", ID(d.vid), ID(d.pid), dev != nil, d.exists)
+		}
+		if err != nil {
+			t.Errorf("OpenDeviceWithVIDPID(%s/%s): got error %v, want nil", ID(d.vid), ID(d.pid), err)
+		}
+		if dev != nil {
+			if dev.Descriptor.Vendor != ID(d.vid) || dev.Descriptor.Product != ID(d.pid) {
+				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)
+			}
+			dev.Close()
+		}
+	}
+}