First tests.

usb/endpoint_test.go

@@ -0,0 +1,46 @@
+// Copyright 2017 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 usb
+
+import (
+	"testing"
+	"time"
+)
+
+type fakeTransfer struct {
+	buf []byte
+}
+
+func (*fakeTransfer) submit() error        { return nil }
+func (t *fakeTransfer) wait() (int, error) { return len(t.buf) / 2, nil }
+func (*fakeTransfer) free() error          { return nil }
+
+func TestEndpoint(t *testing.T) {
+	ep := endpoint{
+		InterfaceSetup: testBulkInSetup,
+		EndpointInfo:   testBulkInEP,
+		newUSBTransfer: func(buf []byte, timeout time.Duration) (transferIntf, error) {
+			return &fakeTransfer{buf}, nil
+		},
+	}
+	b := make([]byte, 128)
+	got, err := ep.Read(b)
+	if err != nil {
+		t.Fatalf("bulkInEP.Read(): got error: %v, want nil", err)
+	}
+	if want := len(b)/2 + 1; got != want {
+		t.Errorf("bulkInEP.Read(): got %d bytes, want half of the buffer length: %d", got, want)
+	}
+}