define first Test

Author: Alexoner03

exercises/tiered_pricing/solutions/aortiz_typescript/tests/Subscription.test.ts

@@ -0,0 +1,5 @@
+describe("Codelyber", () => {
+  it("can be instantiated without throwing errors", () => {
+    expect(() => new Subscription(1)).not.toThrow(TypeError);
+  });
+});