add unit test device_test.go

usb/device_test.go

@@ -0,0 +1,49 @@
+// Copyright 2013 Google Inc.  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 usb_test
+
+import (
+	. "github.com/kylelemons/gousb/usb"
+	"testing"
+)
+
+func TestGetStringDescriptorAscii(t *testing.T) {
+	c := NewContext()
+	defer c.Close()
+	c.Debug(0)
+
+	devices, err := c.ListDevices(func(desc *Descriptor) bool {
+		return true
+	})
+	if err != nil {
+		t.Fatalf("%s", err.Error())
+	}
+
+	for i, d := range devices {
+
+		str, err := d.GetStringDescriptor(1)
+		if err != nil {
+			t.Fatalf("%s", err.Error())
+		}
+
+		str2, err := d.GetStringDescriptor(2)
+		if err != nil {
+			t.Fatalf("%s", err.Error())
+		}
+
+		t.Logf("%d: %s %s\n", i, str, str2)
+		d.Close()
+	}
+}