diff --git a/Cargo.lock b/Cargo.lock
index edf6abe..bc713a5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -227,6 +227,7 @@ dependencies = [
  "frida",
  "goblin",
  "lazy_static",
+ "mylib",
  "pretty_assertions",
  "serde",
  "serde_json",
@@ -568,6 +569,10 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "mylib"
+version = "0.1.0"
+
 [[package]]
 name = "nom"
 version = "7.1.3"
diff --git a/Cargo.toml b/Cargo.toml
index 4afba94..7c670e6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,3 +33,4 @@ build-target = "0.4"
 
 [dev-dependencies]
 pretty_assertions = "1.4.0"
+mylib = { path = "tests/mylib" }
diff --git a/src/frida_handler.rs b/src/frida_handler.rs
index a4a3f7d..561c361 100644
--- a/src/frida_handler.rs
+++ b/src/frida_handler.rs
@@ -88,29 +88,29 @@ impl ScriptHandler for Handler {
 	}
 }
 
-// #[cfg(test)]
-// mod tests {
-// 	use super::*;
-// 	use pretty_assertions::assert_eq;
+#[cfg(test)]
+mod tests {
+	use super::*;
+	use pretty_assertions::assert_eq;
 
-// 	#[link(name = "mylib", kind = "dylib")]
-// 	extern {
-// 		fn mylib_foo() -> u8;
-// 	}
+	#[link(name = "mylib", kind = "dylib")]
+	extern {
+		fn mylib_foo() -> u8;
+	}
 
-// 	#[test]
-// 	fn test_attach_pid() {
-// 		assert_eq!(10, unsafe { mylib_foo() });
+	#[test]
+	fn test_attach_pid() {
+		assert_eq!(10, unsafe { mylib_foo() });
 
-// 		let frida_script = r#"
-// 			const foo = Module.getExportByName(null, "mylib_foo");
-// 			Interceptor.replace(foo, new NativeCallback(function () {
-// 				console.log("replaced foo() called");
-// 				return 20;
-// 			}, "uint8", []));
-// 		"#;
+		let frida_script = r#"
+			const foo = Module.getExportByName(null, "mylib_foo");
+			Interceptor.replace(foo, new NativeCallback(function () {
+				console.log("replaced foo() called");
+				return 20;
+			}, "uint8", []));
+		"#;
 
-// 		attach_pid(frida_script, 0);
-// 		assert_eq!(20, unsafe { mylib_foo() });
-// 	}
-// }
+		attach_pid(frida_script, 0);
+		assert_eq!(20, unsafe { mylib_foo() });
+	}
+}