Add googletest as submodule

Update test.py script

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "external/googletest"]
+	path = external/googletest
+	url = https://github.com/google/googletest.git

CMakeLists.txt

@@ -15,5 +15,11 @@ if (${WITH_ASAN})
   set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libasan")
 endif (${WITH_ASAN})
 
+# gtest
+set(BUILD_GMOCK OFF CACHE BOOL "Exclude gmock from build")
+set(INSTALL_GTEST OFF CACHE BOOL "Do not install gtest")
+add_subdirectory(external/googletest)
+
+# clsc
 add_subdirectory(tests)
 add_subdirectory(utilities)

script/test.py

@@ -11,7 +11,7 @@ def parse_args():
     parser = argparse.ArgumentParser('Command-line options for build script')
     parser.add_argument('--debug', action='store_true', default=False,
         help='Specify whether debug build should be use')
-    parser.add_argument('--raw-cmake', default='',
+    parser.add_argument('--cmake', default='', nargs='*',
         help='Pass raw arguments to cmake')
     return parser.parse_args()
 
@@ -28,14 +28,14 @@ def run_steps(steps, work_dir='.'):
         sys.stdout.flush()
 
 
-def test(debug, raw_args, work_dir='.'):
+def test(debug, cmake_args, work_dir='.'):
     t = 'DEBUG' if debug else 'RELEASE'
     build_type = '-DCMAKE_BUILD_TYPE={t}'.format(t=t)
     steps = """
     cmake {build_type} {args} ..
     make VERBOSE=1
     ./tests/clsc_tests
-    """.format(build_type=build_type, args=raw_args)
+    """.format(build_type=build_type, args=cmake_args)
     run_steps(steps, work_dir=work_dir)
 
 
@@ -46,7 +46,11 @@ def main():
     if os.path.exists(workdir):
         shutil.rmtree(workdir)
         os.makedirs(workdir)
-    test(args.debug, args.raw_cmake, workdir)
+    cmake_args = args.cmake
+    for i, arg in enumerate(cmake_args):
+        if not arg.startswith('-D'):
+            cmake_args[i] = '-D' + arg
+    test(args.debug, cmake_args, workdir)
     return 0