fix: change method to be called earlier (#388)

Author: Nataliya Hristova

assets/runtime/ios/files/ios-runtime-1203/main-view-model.js

@@ -0,0 +1,43 @@
+/*
+In NativeScript, a file with the same name as an XML file is known as
+a code-behind file. The code-behind is a great place to place your view
+logic, and to set up your page’s data binding.
+*/
+
+/*
+NativeScript adheres to the CommonJS specification for dealing with
+JavaScript modules. The CommonJS require() function is how you import
+JavaScript modules defined in other files.
+*/
+const createViewModel = require("./main-view-model").createViewModel;
+
+function onNavigatingTo(args) {
+    const myClassInstance = new MyClass();
+    myClassInstance.logInfo();
+    /*
+    This gets a reference this page’s <Page> UI component. You can
+    view the API reference of the Page to see what’s available at
+    https://docs.nativescript.org/api-reference/classes/_ui_page_.page.html
+    */
+    const page = args.object;
+
+    /*
+    A page’s bindingContext is an object that should be used to perform
+    data binding between XML markup and JavaScript code. Properties
+    on the bindingContext can be accessed using the {{ }} syntax in XML.
+    In this example, the {{ message }} and {{ onTap }} bindings are resolved
+    against the object returned by createViewModel().
+
+    You can learn more about data binding in NativeScript at
+    https://docs.nativescript.org/core-concepts/data-binding.
+    */
+    page.bindingContext = createViewModel();
+}
+
+/*
+Exporting a function in a NativeScript code-behind file makes it accessible
+to the file’s corresponding XML file. In this case, exporting the onNavigatingTo
+function here makes the navigatingTo="onNavigatingTo" binding in this page’s XML
+file work.
+*/
+exports.onNavigatingTo = onNavigatingTo;

assets/runtime/ios/files/ios-runtime-1203/src/main-page.js

@@ -300,19 +300,18 @@ def test_392_use_objective_c_plus_plus_file(self):
                     os.path.join(APP_PATH, 'app', 'App_Resources', 'iOS', 'src'), True)
 
         File.copy(os.path.join(TEST_RUN_HOME, 'assets', 'runtime', 'ios', 'files', 'ios-runtime-1203',
-                               'main-view-model.js'),
-                  os.path.join(APP_PATH, 'app', 'main-view-model.js'), True)
+                               'main-page.js'),
+                  os.path.join(APP_PATH, 'app', 'main-page.js'), True)
         log = Tns.run_ios(app_name=APP_NAME, emulator=True)
 
-        # Verify app is running on device
-        Device.wait_for_text(self.sim, text='Tap the button')
-        Device.click(self.sim, text="TAP", case_sensitive=True)
-
         strings = ['NativeScript logInfo method called']
         result = Wait.until(lambda: all(string in File.read(log.log_file) for string in strings), timeout=300,
                             period=5)
         assert result, 'It seems that there\'s a problem with using objective C++ files that are added in App_Resources'
 
+        # Verify app is running on device
+        Device.wait_for_text(self.sim, text='Tap the button')
+
     def test_398_tns_run_ios_console_time(self):
         # Delete src folder from the previous test till Folder copy strt to backup folders too
         Folder.clean(os.path.join(APP_PATH, 'app', 'App_Resources', 'iOS', 'src'))