diff --git a/tests/unit/types/module.c b/tests/unit/types/module.c
index 9d16b53..fe02d32 100644
--- a/tests/unit/types/module.c
+++ b/tests/unit/types/module.c
@@ -2,6 +2,7 @@
 
 #include "err.h"
 #include "module.h"
+#include "token.h"
 #include "unity.h"
 #include "utils.h"
 
@@ -30,3 +31,19 @@ test_module_init_with_filepath_bigger_than_maximum_expects_to_truncate(void)
 
   TEST_ASSERT_EQUAL(MODULE_MAX_FILEPATH_SIZE, strlen(module.filepath));
 }
+
+void
+test_module_add_token(void)
+{
+  module_t module;
+  error_code_t err = module_init(&module, FILE_BASIC_MODULE);
+  TEST_ASSERT_EQUAL(ERR_OK, err);
+
+  for (int i = 0; i < MODULE_INITIAL_TOKENS_LENGTH * 50; i++) {
+    token_t* token = module_add_token(&module);
+
+    TEST_ASSERT_NOT_NULL(token);
+
+    token_init(token, "keyword", TK_KEYWORD, 1, 2);
+  }
+}
diff --git a/tests/unit/types/test_types.c b/tests/unit/types/test_types.c
index 51f2042..bb2eb38 100644
--- a/tests/unit/types/test_types.c
+++ b/tests/unit/types/test_types.c
@@ -12,6 +12,7 @@ main(void)
 
   RUN_TEST(test_module_init);
   RUN_TEST(test_module_init_with_filepath_bigger_than_maximum_expects_to_truncate);
+  RUN_TEST(test_module_add_token);
 
   return UNITY_END();
 }