From 389ae4e2b3e83fa4b4cecbaf90eea567e4c69e3a Mon Sep 17 00:00:00 2001
From: Sebastian Zagrodzki <sebek@zagrodzki.net>
Date: Fri, 10 Mar 2017 08:48:21 -0500
Subject: [PATCH] EndpointInfo tests

---
 usb/config.go      |  2 +-
 usb/config_test.go | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 usb/config_test.go

diff --git a/usb/config.go b/usb/config.go
index 3205ee4..f967595 100644
--- a/usb/config.go
+++ b/usb/config.go
@@ -42,7 +42,7 @@ func (e EndpointInfo) Direction() EndpointDirection {
 }
 
 func (e EndpointInfo) String() string {
-	return fmt.Sprintf("Endpoint %d %-3s %s - %s %s [%d %d]",
+	return fmt.Sprintf("Endpoint #%d %-3s %s - %s %s [%d %d]",
 		e.Number(), e.Direction(), e.TransferType(),
 		IsoSyncType(e.Attributes)&ISO_SYNC_TYPE_MASK,
 		IsoUsageType(e.Attributes)&ISO_USAGE_TYPE_MASK,
diff --git a/usb/config_test.go b/usb/config_test.go
new file mode 100644
index 0000000..f4cbbcf
--- /dev/null
+++ b/usb/config_test.go
@@ -0,0 +1,32 @@
+package usb
+
+import "testing"
+
+func TestEndpointInfo(t *testing.T) {
+	for _, tc := range []struct {
+		ep   EndpointInfo
+		want string
+	}{
+		{
+			ep: EndpointInfo{
+				Address:       0x86,
+				Attributes:    0x02,
+				MaxPacketSize: 512,
+			},
+			want: "Endpoint #6 IN  bulk - unsynchronized data [512 0]",
+		},
+		{
+			ep: EndpointInfo{
+				Address:       0x02,
+				Attributes:    0x05,
+				MaxPacketSize: 512,
+				MaxIsoPacket:  512,
+			},
+			want: "Endpoint #2 OUT isochronous - asynchronous data [512 512]",
+		},
+	} {
+		if got := tc.ep.String(); got != tc.want {
+			t.Errorf("%#v.String(): got %q, want %q", tc.ep, got, tc.want)
+		}
+	}
+}