adding google testing library

CMakeLists.txt

@@ -16,6 +16,29 @@ configure_file(MonSTRConfig.h.in MonSTRConfig.h)
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 
+######################### Google Test ############################
+# Download and unpack googletest at configure time
+configure_file(cmake/google_test.cmake googletest-download/CMakeLists.txt)
+execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
+                RESULT_VARIABLE result
+                WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
+if(result)
+        message(FATAL_ERROR "CMake step for googletest failed: ${result}")
+endif()
+execute_process(COMMAND ${CMAKE_COMMAND} --build .
+                RESULT_VARIABLE result
+                WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/googletest-download )
+if(result)
+        message(FATAL_ERROR "Build step for googletest failed: ${result}")
+endif()
+
+# Add googletest directly to our build. This defines
+# the gtest and gtest_main targets.
+add_subdirectory(${CMAKE_BINARY_DIR}/googletest-src
+        ${CMAKE_BINARY_DIR}/googletest-build)
+
+######################### htslib and dependencies ############################
+
 ExternalProject_Add(zlib
         PREFIX ${CMAKE_BINARY_DIR}/thirdparty/zlib
         GIT_REPOSITORY "https://github.com/madler/zlib.git"
@@ -39,13 +62,16 @@ ExternalProject_Add(htslib
         LOG_DOWNLOAD 1
         )
 
+
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 include_directories(${CMAKE_BINARY_DIR}/thirdparty/zlib/include)
 set(zlib_static ${CMAKE_BINARY_DIR}/thirdparty/zlib/lib/libz.a)
 set(htslib_static ${CMAKE_BINARY_DIR}/thirdparty/htslib/lib/libhts.a)
 include_directories(${CMAKE_BINARY_DIR}/thirdparty/htslib/include)
 add_dependencies(htslib zlib)
 
+######################### monstr code ############################
+
 add_subdirectory(lib)
 
 # add the executable

cmake/google_test.cmake

@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 2.8.2)
+
+project(googletest-download NONE)
+
+include(ExternalProject)
+ExternalProject_Add(googletest
+        GIT_REPOSITORY https://github.com/google/googletest.git
+        GIT_TAG release-1.10.0
+        SOURCE_DIR "${CMAKE_BINARY_DIR}/googletest-src"
+        BINARY_DIR "${CMAKE_BINARY_DIR}/googletest-build"
+        CONFIGURE_COMMAND ""
+        BUILD_COMMAND ""
+        INSTALL_COMMAND ""
+        TEST_COMMAND ""
+        )