diff --git a/src/test/cli_argument_parser.cpp b/src/test/cli_argument_parser.cpp
index e9f1e83..d182067 100644
--- a/src/test/cli_argument_parser.cpp
+++ b/src/test/cli_argument_parser.cpp
@@ -34,7 +34,6 @@ int main(int argc, char* argv[]) {
     // test -0 -ab -12345 --long-flag -cconcatenated -d separate-value -efdouble-concatenated "positional argument 0" -gh concatenated-separate-value --long-argument-with-value-included="included value" --long-argument-with-value-separated "separate value" "positional argument 1" "positional argument 2"
 
     std::vector<CLI::Flag> flags;
-    //flags.push_back(CLI::Flag(shortName, longName, description));
     flags.push_back(CLI::Flag('0', "00000", "a short flag on its own"));
     flags.push_back(CLI::Flag('a', "aaaaa", "concatenated short flags"));
     flags.push_back(CLI::Flag('b', "bbbbb", "concatenated short flags"));
@@ -148,6 +147,7 @@ int main(int argc, char* argv[]) {
     ASSERT(parser.getPositionalArgument(2).value=="positional argument 2");
     ASSERT(!parser.getUnpositionalArgument('z').isError);
     ASSERT(parser.getUnpositionalArgument('z').errorCode == ErrorCodes::NOT_PRESENT);
+    ASSERT(parser.getUnpositionalArgument('z').value == std::string(""));
 
     std::cout << "Passed valid input test." << std::endl;