@@ -27,6 +27,10 @@ class impl : public installer_ifc {

             std::string user_name = c_user_name;

             auto found_user = directory_.find_user(user_name);

+            if (found_user.empty()) {

+                return "";

+            }

+

             user user(found_user[0]);

             std::string token(generator_());

             tokens_.save(user, token);

@@ -51,7 +51,6 @@ class fake_directory : public directory_ifc {

 int installs_token() {

     //given

-    user user;

     std::string user_name("user");

     std::string token("token");

     auto  test_tokens = std::make_shared<mock_tokens>();

@@ -91,9 +90,29 @@ int unistd_does_not_find_user_name() {

     succeed();

 }

+int directory_finds_no_user_info() {

+    std::string user_name("user");

+    std::string token("token");

+    auto  test_tokens = std::make_shared<mock_tokens>();

+    tokens tokens{test_tokens};

+    unistd unistd(std::make_shared<fake_unistd>(user_name));

+    directory directory(std::make_shared<fake_directory>("not the user"));

+    installer_ifc::generator generator = [&] { return token; };

+

+    installer installer = installer::create (tokens, unistd, directory, generator);

+

+    //when

+    installer.install_token();

+

+    //then

+    check(test_tokens->captured_token == "", "installed wrong token");

+    succeed();

+}

+

 int run_tests() {

     test(installs_token);

     test(unistd_does_not_find_user_name);

+    test(directory_finds_no_user_info);

     succeed();

 }