diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..3752d92
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,14 @@
+{
+  "name": "Jest file",
+  "type": "pwa-node",
+  "request": "launch",
+  "runtimeExecutable": "${workspaceRoot}/node_modules/.bin/jest",
+  "args": ["${fileBasenameNoExtension}", "--runInBand", "--watch", "--coverage=false", "--no-cache"],
+  "cwd": "${workspaceRoot}",
+  "console": "integratedTerminal",
+  "internalConsoleOptions": "neverOpen",
+  "sourceMaps": true,
+  "windows": {
+    "program": "${workspaceFolder}/node_modules/jest/bin/jest"
+  }
+}
diff --git a/src/__tests__/Tuitio.test.ts b/src/__tests__/TuitioClient.test.ts
similarity index 78%
rename from src/__tests__/Tuitio.test.ts
rename to src/__tests__/TuitioClient.test.ts
index b689dba..d736877 100644
--- a/src/__tests__/Tuitio.test.ts
+++ b/src/__tests__/TuitioClient.test.ts
@@ -1,5 +1,6 @@
 import { getUrlTemplates } from "../config";
 import { combineUrls } from "../utils";
+import { TuitioClient } from "../client";
 
 test("Combine urls with trailing slash", () => {
   const result = combineUrls("https://test.com/api/", "/test");
@@ -18,3 +19,8 @@ test("Get url templates", () => {
   expect(result.authentication).toContain("{username}");
   expect(result.authentication).toContain("{password}");
 });
+
+test("Tuitio client initialization", () => {
+  const result = new TuitioClient("https://test.com/api");
+  expect(result.baseUrl).toBe("https://test.com/api");
+});
diff --git a/src/client.ts b/src/client.ts
index d2a523d..6657375 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -51,7 +51,7 @@ const invalidate = (): void => {
   }
 };
 
-type TuitioState = { token: string; userName: string };
+export type TuitioState = { token: string; userName: string };
 
 const fetch = (): TuitioState => {
   const data = {