ipmi: start implementing flashStartTransfer

Change-Id: I1f8b1498d517c0661e98b1ba895e7152f7a9ed8e
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/test/updater_mock.hpp b/test/updater_mock.hpp
new file mode 100644
index 0000000..3c2b5ab
--- /dev/null
+++ b/test/updater_mock.hpp
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <gmock/gmock.h>
+
+#include "flash-ipmi.hpp"
+
+class UpdaterMock : public UpdateInterface
+{
+  public:
+    virtual ~UpdaterMock() = default;
+
+    MOCK_METHOD1(start, bool(uint32_t));
+};