diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 66023f68..76c7c061 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -14,18 +14,21 @@ add_executable(
   yaze_test
   yaze_test.cc
   rom_test.cc
+  asm_test.cc
   ../src/app/rom.cc
   ../src/app/asm/script.cc
   ../src/app/gfx/bitmap.cc
   ../src/app/gfx/snes_tile.cc
   ../src/app/gfx/snes_palette.cc
   ../src/app/core/common.cc
+  ../src/lib/asar/src/asar-dll-bindings/c/asardll.c
 )
 
 target_include_directories(
   yaze_test PUBLIC
-  ../src/lib/
   ../src/
+  ../src/lib/
+  ../src/lib/asar/src/asar-dll-bindings/c
   ${SDL_INCLUDE_DIRS}
 )
 
diff --git a/test/asm_test.cc b/test/asm_test.cc
new file mode 100644
index 00000000..cff67106
--- /dev/null
+++ b/test/asm_test.cc
@@ -0,0 +1,48 @@
+#include <asardll.h>
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+#include <array>
+#include <cstdint>
+#include <fstream>
+#include <sstream>
+#include <string>
+
+#include "absl/status/status.h"
+#include "absl/status/statusor.h"
+#include "absl/strings/str_cat.h"
+#include "absl/strings/string_view.h"
+#include "app/asm/script.h"
+#include "app/core/constants.h"
+#include "app/rom.h"
+
+namespace yaze_test {
+namespace asm_test {
+
+using yaze::app::ROM;
+using yaze::app::snes_asm::Script;
+
+using ::testing::_;
+using ::testing::ElementsAreArray;
+using ::testing::Return;
+using ::testing::TypedEq;
+
+class MockScript : public Script {
+ public:
+  MOCK_METHOD(absl::Status, ApplyPatchToROM, (ROM & rom));
+};
+
+TEST(ASMTest, NoPatchLoadedError) {
+  ROM rom;
+  MockScript script;
+  EXPECT_CALL(script, ApplyPatchToROM(_))
+      .WillOnce(Return(absl::InvalidArgumentError("No patch loaded!")));
+
+  EXPECT_THAT(script.ApplyPatchToROM(rom),
+              absl::InvalidArgumentError("No patch loaded!"));
+}
+
+TEST(ASMTest, ApplyPatchOk) {}
+
+}  // namespace asm_test
+}  // namespace yaze_test
\ No newline at end of file