middleware/etcd: move NewHTTPTransport to pkg/tls (#769)

middleware/pkg/tls/tls_test.go

@@ -79,3 +79,23 @@ func TestNewTLSConfigFromArgs(t *testing.T) {
 		t.Error("Certificateis should have a single entry when three args passed")
 	}
 }
+
+func TestNewHTTPSTransport(t *testing.T) {
+	rmFunc, _, _, ca := getPEMFiles(t)
+	defer rmFunc()
+
+	cc, err := NewTLSClientConfig(ca)
+	if err != nil {
+		t.Errorf("Failed to create TLSConfig: %s", err)
+	}
+
+	tr := NewHTTPSTransport(cc)
+	if tr == nil {
+		t.Errorf("Failed to create https transport with cc")
+	}
+
+	tr = NewHTTPSTransport(nil)
+	if tr == nil {
+		t.Errorf("Failed to create https transport without cc")
+	}
+}