diff --git a/.npmignore b/.npmignore
index 15f3de2..09bfd6f 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1 +1,5 @@
-app.ts
\ No newline at end of file
+app.ts
+
+tests/
+jest.config.cjs
+jest.setup.js
\ No newline at end of file
diff --git a/jest.config.cjs b/jest.config.cjs
new file mode 100644
index 0000000..c0edf12
--- /dev/null
+++ b/jest.config.cjs
@@ -0,0 +1,4 @@
+module.exports = {
+    preset: "ts-jest",
+    setupFiles: [ "./jest.setup.js" ]
+}
\ No newline at end of file
diff --git a/jest.setup.js b/jest.setup.js
new file mode 100644
index 0000000..d583d1a
--- /dev/null
+++ b/jest.setup.js
@@ -0,0 +1,3 @@
+jest.setTimeout(1 * 1000); // 1 second
+jest.resetModules();
+jest.resetAllMocks();
\ No newline at end of file
diff --git a/tsconfig.json b/tsconfig.json
index 0add03a..6bf1642 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -73,7 +73,9 @@
       "./src",
     ],
     "exclude": [
-      "./tests"
+      "./tests",
+      "jest.config.cjs",
+      "jest.setup.js"
     ],
     "ts-node": {
         "esm": true