test: add authorize 100% coverage

src/UnauthorizedError.ts

@@ -0,0 +1,16 @@
+export class UnauthorizedError extends Error {
+  public inner: { message: string }
+  public data: { message: string, code: string, type: 'UnauthorizedError' }
+
+  constructor (code: string, error: { message: string }) {
+    super(error.message)
+    this.message = error.message
+    this.inner = error
+    this.data = {
+      message: this.message,
+      code,
+      type: 'UnauthorizedError'
+    }
+    Object.setPrototypeOf(this, UnauthorizedError.prototype)
+  }
+}