fix: test to cover correct input (#748)

Author: Chase Coalwell

packages/middleware-sdk-machinelearning/src/predict-endpoint.spec.ts

@@ -27,6 +27,9 @@ describe("predictEndpointMiddleware", () => {
       request: { hostname, path, protocol }
     } = next.mock.calls[0][0];
 
+    expect(mockUrlParser.mock.calls[0][0]).toBe(
+      "http://api.example.com/foo/bar"
+    );
     expect(forwardedInput).toBe(input);
     expect(hostname).toBe("api.example.com");
     expect(path).toBe("/foo/bar");

packages/middleware-sdk-machinelearning/src/predict-endpoint.ts

@@ -22,7 +22,7 @@ export function predictEndpointMiddleware(
     let { request } = args;
     if (HttpRequest.isInstance(request)) {
       if (input.PredictEndpoint) {
-        const endpoint = options.urlParser(input.predictEndpoint);
+        const endpoint = options.urlParser(input.PredictEndpoint);
         request = {
           ...request,
           hostname: endpoint.hostname,