diff --git a/CMakeLists.txt b/CMakeLists.txt
index 87a167ce..96426850 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,6 +74,10 @@ if( EXIV2_ENABLE_COMMERCIAL )
     set (EXIV2_ENABLE_NLS OFF)
 endif()
 
+if( EXIV2_BUILD_UNIT_TESTS )
+    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON) # Requires CMake 3.3.3
+endif()
+
 include(config/findDependencies.cmake)
 include(config/compilerFlags.cmake)
 include( config/generateConfigFile.cmake )
diff --git a/unitTests/CMakeLists.txt b/unitTests/CMakeLists.txt
index 2f141d2e..735543ed 100644
--- a/unitTests/CMakeLists.txt
+++ b/unitTests/CMakeLists.txt
@@ -1,10 +1,11 @@
 add_executable(unit_tests mainTestRunner.cpp
-    test_types.cpp
     gtestwrapper.h
+    test_types.cpp
+    test_tiffheader.cpp
 )
 
 #TODO Use GTest::GTest once we upgrade the minimum CMake version required
-target_link_libraries(unit_tests 
+target_link_libraries(unit_tests
     PRIVATE
         exiv2lib
         ${GTEST_BOTH_LIBRARIES}
@@ -13,6 +14,7 @@ target_link_libraries(unit_tests
 target_include_directories(unit_tests
     PRIVATE
         ${GTEST_INCLUDE_DIRS}
+        ${CMAKE_SOURCE_DIR}/src
 )
 
 target_compile_definitions(unit_tests
diff --git a/unitTests/test_tiffheader.cpp b/unitTests/test_tiffheader.cpp
new file mode 100644
index 00000000..8afa721e
--- /dev/null
+++ b/unitTests/test_tiffheader.cpp
@@ -0,0 +1,22 @@
+#include <tiffimage_int.hpp>
+
+#include "gtestwrapper.h"
+#include <sstream>
+
+using namespace Exiv2;
+
+static const byte tiffLittleEndian[] = {0x49, 0x49, 0x2a, 0x00, 0x10, 0x00, 0x00, 0x00};
+
+class ATiffHeader: public ::testing::Test
+{
+public:
+    Internal::TiffHeader header;
+};
+
+TEST_F(ATiffHeader, hasExpectedValuesAfterCreation)
+{
+    ASSERT_EQ(8u, header.size());
+    ASSERT_EQ(42, header.tag());
+    ASSERT_EQ(8u, header.offset());
+    ASSERT_EQ(littleEndian, header.byteOrder());
+}