Add support for log-handler

This handler is based off of version handler with major differences in
handler_builder

Tested:
created the blackbox blob successfully using this lib.
Read the data from the blob using a host side tool

Signed-off-by: Gaurav Gandhi <gauravgandhi@google.com>
Change-Id: I9ef775af752156a1647453ff3831ef4c0449d546
diff --git a/bmc/log-handler/test/log_mock.hpp b/bmc/log-handler/test/log_mock.hpp
new file mode 100644
index 0000000..e9628eb
--- /dev/null
+++ b/bmc/log-handler/test/log_mock.hpp
@@ -0,0 +1,61 @@
+// Copyright 2021 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "handler_config.hpp"
+#include "image_mock.hpp"
+#include "log_handler.hpp"
+#include "triggerable_mock.hpp"
+
+#include <memory>
+#include <string>
+#include <utility>
+
+namespace ipmi_flash
+{
+
+auto createMockLogConfig(const std::string& id, ImageHandlerMock** im = nullptr,
+                         TriggerMock** tm = nullptr)
+{
+    HandlerConfig<LogBlobHandler::ActionPack> ret;
+    ret.blobId = id;
+    auto handler = std::make_unique<testing::StrictMock<ImageHandlerMock>>();
+    if (im != nullptr)
+    {
+        *im = handler.get();
+    }
+    ret.handler = std::move(handler);
+    ret.actions = std::make_unique<LogBlobHandler::ActionPack>();
+    auto trigger = std::make_unique<testing::StrictMock<TriggerMock>>();
+    if (tm != nullptr)
+    {
+        *tm = trigger.get();
+    }
+    ret.actions->onOpen = std::move(trigger);
+    return ret;
+}
+
+template <typename C, typename Im = std::map<std::string, ImageHandlerMock*>,
+          typename Tm = std::map<std::string, TriggerMock*>>
+auto createMockLogConfigs(const C& ids, Im* im = nullptr, Tm* tm = nullptr)
+{
+    std::vector<HandlerConfig<LogBlobHandler::ActionPack>> ret;
+    for (const auto& id : ids)
+    {
+        ret.push_back(
+            createMockLogConfig(id, im == nullptr ? nullptr : &(*im)[id],
+                                tm == nullptr ? nullptr : &(*tm)[id]));
+    }
+    return ret;
+}
+} // namespace ipmi_flash