diff --git a/CMakeLists.txt b/CMakeLists.txt
index 125bfbd..9ecc00e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,7 @@ project(xlang
         DESCRIPTION "XLANG Compiler")
 
 enable_language(CXX)
+enable_testing()
 set(CMAKE_CXX_COMPILER /bin/clang++)
 set(CXX_STANDARD 23)
 set(CMAKE_CXX_FLAGS "-std=c++${CXX_STANDARD}")
@@ -20,4 +21,10 @@ add_executable(${PROJECT_NAME} ${SOURCES})
 
 target_link_libraries(
     ${PROJECT_NAME}
-)
\ No newline at end of file
+)
+
+add_test(NAME CompactSourceAll COMMAND ${PROJECT_NAME} ../examples/compact/exitall.x)
+add_test(NAME TestOutputBinary COMMAND ${CMAKE_COMMAND} 
+    -DTEST_EXECUTABLE=./out
+    -P ${CMAKE_CURRENT_SOURCE_DIR}/check_exit_9.cmake)
+set_tests_properties(TestOutputBinary PROPERTIES DEPENDS CompactSourceAll)
\ No newline at end of file
diff --git a/check_exit_9.cmake b/check_exit_9.cmake
new file mode 100644
index 0000000..263d79b
--- /dev/null
+++ b/check_exit_9.cmake
@@ -0,0 +1,10 @@
+execute_process(
+  COMMAND ${TEST_EXECUTABLE} ${TEST_ARGS}
+  RESULT_VARIABLE EXIT_CODE
+)
+
+message(STATUS "Test exited with code: ${EXIT_CODE}")
+
+if(NOT EXIT_CODE EQUAL 9)
+  message(FATAL_ERROR "Expected exit code 9, but got ${EXIT_CODE}")
+endif()
diff --git a/examples/compact/exitall.x b/examples/compact/exitall.x
index 17ee1c6..d352e84 100644
--- a/examples/compact/exitall.x
+++ b/examples/compact/exitall.x
@@ -5,7 +5,7 @@ var x = 1 + 2 * 3;
 }
 var y = x - 3;
 var z = (3 * 5) / 3;
-if (x) {
-    exit(y + z); 
+if (x ) {
+    exit(y + z);
 }
-exit (1); // Should never exit
\ No newline at end of file
+exit (1);
\ No newline at end of file
diff --git a/src/tokenization.hxx b/src/tokenization.hxx
index a622a11..e9362b3 100644
--- a/src/tokenization.hxx
+++ b/src/tokenization.hxx
@@ -83,6 +83,12 @@ public:
                 }
                 tokens.push_back({.type = TokenType::int_lit, .value = buffer});
                 buffer.clear();
+            } else if (peek().value() == '/' && peek(1).has_value() && peek(1).value() == '/') {
+                consume();
+                consume();
+                while (peek().has_value() && peek().value() != '\n') {
+                    consume();
+                }
             } else if (std::isspace(peek().value())) {
                 consume();
             } else {