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_close_unittest.cpp b/bmc/log-handler/test/log_close_unittest.cpp
new file mode 100644
index 0000000..8755541
--- /dev/null
+++ b/bmc/log-handler/test/log_close_unittest.cpp
@@ -0,0 +1,94 @@
+// 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 "log_handler.hpp"
+#include "log_mock.hpp"
+
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+#include <gtest/gtest.h>
+
+using ::testing::Return;
+
+namespace ipmi_flash
+{
+
+class LogCloseExpireBlobTest : public ::testing::Test
+{
+  protected:
+    void SetUp() override
+    {
+        h = std::make_unique<LogBlobHandler>(
+            createMockLogConfigs(blobNames, &im, &tm));
+    }
+
+    std::unique_ptr<blobs::GenericBlobInterface> h;
+    std::vector<std::string> blobNames{"blob0", "blob1", "blob2", "blob3"};
+    std::unordered_map<std::string, TriggerMock*> tm;
+    std::unordered_map<std::string, ImageHandlerMock*> im;
+};
+
+TEST_F(LogCloseExpireBlobTest, VerifyOpenThenClose)
+{
+    EXPECT_CALL(*tm.at("blob0"), trigger()).WillOnce(Return(true));
+    EXPECT_TRUE(h->open(0, blobs::read, "blob0"));
+    EXPECT_CALL(*tm.at("blob0"), abort()).Times(1);
+    EXPECT_TRUE(h->close(0));
+}
+
+TEST_F(LogCloseExpireBlobTest, VerifySingleAbort)
+{
+    EXPECT_CALL(*tm.at("blob0"), trigger()).WillOnce(Return(true));
+    EXPECT_TRUE(h->open(0, blobs::read, "blob0"));
+    EXPECT_TRUE(h->open(1, blobs::read, "blob0"));
+    EXPECT_TRUE(h->close(0));
+    EXPECT_CALL(*tm.at("blob0"), abort()).Times(1);
+    EXPECT_TRUE(h->close(1));
+}
+
+TEST_F(LogCloseExpireBlobTest, VerifyUnopenedBlobCloseFails)
+{
+    EXPECT_FALSE(h->close(0));
+}
+
+TEST_F(LogCloseExpireBlobTest, VerifyDoubleCloseFails)
+{
+    EXPECT_CALL(*tm.at("blob0"), trigger()).WillOnce(Return(true));
+    EXPECT_TRUE(h->open(0, blobs::read, "blob0"));
+    EXPECT_CALL(*tm.at("blob0"), abort()).Times(1);
+    EXPECT_TRUE(h->close(0));
+    EXPECT_FALSE(h->close(0));
+}
+
+TEST_F(LogCloseExpireBlobTest, VerifyBadSessionNumberCloseFails)
+{
+    EXPECT_CALL(*tm.at("blob0"), trigger()).WillOnce(Return(true));
+    EXPECT_TRUE(h->open(0, blobs::read, "blob0"));
+    EXPECT_FALSE(h->close(1));
+    EXPECT_CALL(*tm.at("blob0"), abort()).Times(1);
+    EXPECT_TRUE(h->close(0));
+}
+
+TEST_F(LogCloseExpireBlobTest, VerifyRunningActionIsAborted)
+{
+    EXPECT_CALL(*tm.at("blob0"), trigger()).WillOnce(Return(true));
+    EXPECT_TRUE(h->open(0, blobs::read, "blob0"));
+    EXPECT_CALL(*tm.at("blob0"), abort()).Times(1);
+    EXPECT_TRUE(h->close(0));
+}
+
+} // namespace ipmi_flash