add .clang-format

Change-Id: I6627b5569c2e0f730be7331403218b823a2c622f
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/test/writeinterface_mock.hpp b/test/writeinterface_mock.hpp
index 6aaa4de..6e5b350 100644
--- a/test/writeinterface_mock.hpp
+++ b/test/writeinterface_mock.hpp
@@ -6,11 +6,12 @@
 
 class WriteInterfaceMock : public WriteInterface
 {
-    public:
-        virtual ~WriteInterfaceMock() = default;
+  public:
+    virtual ~WriteInterfaceMock() = default;
 
-        WriteInterfaceMock(int64_t min, int64_t max)
-            : WriteInterface(min, max) {}
+    WriteInterfaceMock(int64_t min, int64_t max) : WriteInterface(min, max)
+    {
+    }
 
-        MOCK_METHOD1(write, void(double));
+    MOCK_METHOD1(write, void(double));
 };