fix: Language config bug fixed (#1775)

language config was not working when it is set in forRoot method

packages/core/services/maps-api-loader/lazy-maps-api-loader.spec.ts

@@ -130,4 +130,31 @@ describe('Service: LazyMapsAPILoader', () => {
     const url = new URL(scriptElem.src);
     expect(url.searchParams.get('language')).toEqual('es');
   });
+
+  it('should load language based on config', () => {
+    TestBed.configureTestingModule({
+      providers: [
+        {provide: MapsAPILoader, useClass: LazyMapsAPILoader},
+        {provide: WindowRef, useValue: windowRef},
+        {provide: DocumentRef, useValue: documentRef},
+        {provide: LAZY_MAPS_API_CONFIG, useValue: {language: 'tr'} as LazyMapsAPILoaderConfigLiteral},
+        {provide: LOCALE_ID, useValue: 'es'},
+      ],
+    });
+
+    const loader: LazyMapsAPILoader = TestBed.get(MapsAPILoader);
+    interface Script {
+      src?: string;
+      async?: boolean;
+      defer?: boolean;
+      type?: string;
+    }
+    const scriptElem: Script = {};
+    (doc.createElement as jest.Mock).mockReturnValue(scriptElem);
+
+    loader.load();
+    expect(doc.createElement).toHaveBeenCalled();
+    const url = new URL(scriptElem.src);
+    expect(url.searchParams.get('language')).toEqual('tr');
+  });
 });

packages/core/services/maps-api-loader/lazy-maps-api-loader.ts

@@ -162,7 +162,7 @@ export class LazyMapsAPILoader extends MapsAPILoader {
       channel: this._config.channel,
       libraries: this._config.libraries,
       region: this._config.region,
-      language: this._config.language || this.localeId !== 'en-US' ? this.localeId : null,
+      language: this._config.language || (this.localeId !== 'en-US' ? this.localeId : null),
     };
     const params: string = Object.keys(queryParams)
                                .filter((k: string) => queryParams[k] != null)