Add new tests for bad episode num and error handling

src/imdb.ts

@@ -485,11 +485,7 @@ export function get(req: MovieRequest, opts: MovieOpts): Promise<Movie> {
  * @return a promise yielding search results
  */
 export function search(req: SearchRequest, opts: MovieOpts, page?: number): Promise<SearchResults> {
-    try {
-        return new Client(opts).search(req, page);
-    } catch (e) {
-        return Promise.reject(e);
-    }
+    return new Client(opts).search(req, page);
 }
 
 /**

test/test-getReq.ts

@@ -222,4 +222,34 @@ describe('get', () => {
             done();
         });
     });
+
+    it("gets an error from omdb by name", (done: MochaDone) => {
+        let scope = nock("https://www.omdbapi.com").get("/?apikey=foo&plot=full&r=json&t=blah").reply(200, {Error: "bad", Response: "False"});
+
+        imdb.get({
+            name: "blah"
+        }, {
+            apiKey: "foo"
+        }).then((data) => {
+            assert.notExists(data, "unreachable");
+        }).catch((err) => {
+            assert.isOk(err, "got an error");
+            done();
+        });
+    });
+
+    it("gets an error from omdb by id", (done: MochaDone) => {
+        let scope = nock("https://www.omdbapi.com").get("/?apikey=foo&plot=full&r=json&i=tt01").reply(200, {Error: "bad", Response: "False"});
+
+        imdb.get({
+            id: "tt01"
+        }, {
+            apiKey: "foo"
+        }).then((data) => {
+            assert.notExists(data, "unreachable");
+        }).catch((err) => {
+            assert.isOk(err, "got an error");
+            done();
+        });
+    });
 });

test/test-movie.ts

@@ -159,4 +159,9 @@ describe("Episode", () => {
         const ep = Object.assign(Object.create(orig_tv), {Year: "foo"});
         assert.throws(() => new imdb.Episode(ep, 30), TypeError);
     });
+
+    it("creates an episode with an invalid number", () => {
+        const ep = Object.assign(Object.create(orig_tv), {Episode: "foo"});
+        assert.throws(() => new imdb.Episode(ep, 30), TypeError);
+    });
 });