@@ -14,7 +14,7 @@ type portMap struct {

 func newPortMap() *portMap {

 	return &portMap{

-		p: map[int]struct{}{},

+		p:    map[int]struct{}{},

 		last: EndPortRange,

 	}

 }

@@ -214,3 +214,19 @@ func TestPortAllocation(t *testing.T) {

 		t.Fatal("Requesting a dynamic port should never allocate a used port")

 	}

 }

+

+func TestNoDuplicateBPR(t *testing.T) {

+	defer reset()

+

+	if port, err := RequestPort(defaultIP, "tcp", BeginPortRange); err != nil {

+		t.Fatal(err)

+	} else if port != BeginPortRange {

+		t.Fatalf("Expected port %d got %d", BeginPortRange, port)

+	}

+

+	if port, err := RequestPort(defaultIP, "tcp", 0); err != nil {

+		t.Fatal(err)

+	} else if port == BeginPortRange {

+		t.Fatalf("Acquire(0) allocated the same port twice: %d", port)

+	}

+}