[test] added unit test infrastructure example

libraries/chain/CMakeLists.txt

@@ -44,3 +44,5 @@ INSTALL( TARGETS
    ARCHIVE DESTINATION lib
 )
 INSTALL( FILES ${HEADERS} DESTINATION "include/eos/chain" )
+
+add_subdirectory(test)

libraries/chain/test/CMakeLists.txt

+find_package(Boost 1.64 REQUIRED COMPONENTS unit_test_framework)
+
+set(CMAKE_CXX_STANDARD 14)
+
+add_executable(chain_unit_test
+    test.cpp
+    block_test.cpp
+    message_test.cpp
+    )
+target_include_directories(chain_unit_test PRIVATE ${Boost_INCLUDE_DIRS})
+target_compile_definitions(chain_unit_test PRIVATE "BOOST_TEST_DYN_LINK=1")
+target_link_libraries(chain_unit_test ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY} eos_chain)
+
+add_test(chain_unit_test chain_unit_test)

libraries/chain/test/block_test.cpp

+#include <boost/test/unit_test.hpp>
+
+#include "eos/chain/block.hpp"
+
+BOOST_AUTO_TEST_SUITE(block_test)
+
+BOOST_AUTO_TEST_CASE(block_header_default_digest)
+{
+    eosio::chain::block_header header;
+    std::string result = header.digest().str();
+    BOOST_CHECK_EQUAL("075561eff2cd3ad586776fa904f0040282c5f6a261f6a8fd6a0a524d14cd2d2c", result);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+
+

libraries/chain/test/message_test.cpp

+#include <boost/test/unit_test.hpp>
+
+#include "eos/chain/message.hpp"
+
+BOOST_AUTO_TEST_SUITE(message_test)
+
+BOOST_AUTO_TEST_CASE(default_message)
+{
+    eosio::chain::message message;
+    std::string result = message.as<std::string>();
+    BOOST_CHECK_EQUAL("", result);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+
+
+

libraries/chain/test/test.cpp

+#define BOOST_TEST_MODULE chain
+#include <boost/test/included/unit_test.hpp>
+
+
+