diff --git a/jest.config.js b/jest.config.js
new file mode 100644
index 0000000..b413e10
--- /dev/null
+++ b/jest.config.js
@@ -0,0 +1,5 @@
+/** @type {import('ts-jest').JestConfigWithTsJest} */
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+};
\ No newline at end of file
diff --git a/test/validLink.test.ts b/test/validLink.test.ts
new file mode 100644
index 0000000..ac4af1f
--- /dev/null
+++ b/test/validLink.test.ts
@@ -0,0 +1,6 @@
+import {describe, expect, test} from '@jest/globals';
+import validLink from "../lib/url/valid_link";
+
+test("Plain, full URL", () => {
+    expect(validLink("https://example.com/about-us")).toBe(true);
+});
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