chore(smithy-client): add unit tests

Author: eduardomourar

packages/smithy-client/src/exceptions.spec.ts

@@ -1,4 +1,4 @@
-import { decorateServiceException, ServiceException } from "./exceptions";
+import { decorateServiceException, ExceptionOptionType, ServiceException } from "./exceptions";
 
 it("ServiceException extends from Error", () => {
   expect(
@@ -11,6 +11,23 @@ it("ServiceException extends from Error", () => {
   ).toBeInstanceOf(Error);
 });
 
+it("ExceptionOptionType allows specifying message", () => {
+  class SomeException extends ServiceException {
+    constructor(opts: ExceptionOptionType<SomeException, ServiceException>) {
+      super({
+        name: "SomeException",
+        $fault: "client",
+        ...opts,
+      });
+    }
+  }
+  const exception = new SomeException({
+    message: "message",
+    $metadata: {},
+  });
+  expect(exception.message).toBe("message");
+});
+
 describe("decorateServiceException", () => {
   const exception = new ServiceException({
     name: "Error",