diff --git a/SConstruct b/SConstruct
index 8f37c1f..5b7d355 100644
--- a/SConstruct
+++ b/SConstruct
@@ -141,9 +141,21 @@ release_env = create_env('release', [src_dir], {
     'CXXFLAGS': release_cflags,
 })
 
+test_gtest_dir = Dir('#lib/gtest')
+test_cpppath = test_gtest_dir.Dir('include')
+test_env = create_env('test', [src_dir, test_dir, test_gtest_dir], {
+    'CPPDEFINES': ['DEBUG'],
+    'CPPPATH': [test_cpppath],
+    'LIBPATH': [test_gtest_dir],
+    'CFLAGS': debug_cflags,
+    'CXXFLAGS': debug_cflags,
+})
+
+
 modes = {
     'debug': debug_env,
     'release': release_env,
+    'test': test_env,
 }
 
 mode = ARGUMENTS.get('MODE', None)