string tests

tests/CMakeLists.txt

@@ -6,7 +6,7 @@ macro(pip_test NAME LIBS)
 	set(_target pip_${NAME}_test)
 	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${PIP_ROOT_BINARY_DIR}")
 	add_executable(${_target} ${_CPPS} ${_HDRS})
-	target_link_libraries(${_target} pip ${LIBS} gtest_main gmock_main)
+        target_link_libraries(${_target} pip ${LIBS} gtest_main gmock_main)
 	add_test(NAME ${_target} COMMAND tests)
 	add_custom_target(${_target}_perform ALL COMMAND ${_target})
 	set(CMAKE_RUNTIME_OUTPUT_DIRECTORY)
@@ -17,3 +17,4 @@ endmacro()
 # Concurrent tests
 pip_test(concurrent "")
 pip_test(math "")
+pip_test(core "")