add token tests

test/mocks/gumroadMock.ts

@@ -0,0 +1,22 @@
+export const licenseSuccess = {
+    success: true,
+    uses: 4,
+    purchase: {}
+};
+
+export const licenseFail = {
+    success: false,
+    message: "That license does not exist for the provided product."
+};
+
+
+const subCode = (length = 8) => {
+    const characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+    let result = "";
+    for (let i = 0; i < length; i++) {
+        result += characters[(Math.floor(Math.random() * characters.length))];
+    }
+    return result;
+}
+
+export const generateLicense = (): string => `${subCode()}-${subCode()}-${subCode()}-${subCode()}`;