WeatherApplication | Hello World , this is a free weather application | REST library

I'm trying to build an weatherapplication for a schoolproject in React. I've gotten so far that when i search for London, it will show me the current temprature and other useful information i've chosen to display. I simply want a message to appear that the city could not be found, i guess this somehow should done in a variable and with help of If statements?

However im not sure how i handle if the user types something that that isnt there, for example "new jorc" instead of New York. My current code looks like this.

So I've gone ahead and tried to implement the ResponseDefinitionTransformer, this is my current code:

here are the steps to reproduce the issue:

1. click on google signin Button.
2. choose "use another account"
3. sign in with the new account and this should bring you back to the app.
4. app only shows dark overlay and consent form or callback(to onActivityResult) is not working.

then if i touch the screen the dark overlay goes away, at this time if i press the google button again it automatically logs me in with the account. I tried a few apps like stackoverflow,traveloka, airBNB, my own simple app with a google SSO button and glassdoor,lazada, etc and a few others and all of them give an error after getting to option 3.

I thought perhaps it was the [oauth consent form]:

i filled it out but im only requesting email as a google SSO options. so i filled out the form but nothing after waiting a while.

if you want to see my full code, its pretty standard google SSO button and its here: the class is called LoginFragment.kt

but let me post the class here that handles the login:

I've a WeatherRepository class which calls the WeatherProvider class to start fetching the weather.

After the weather is successfully fetched, I simply post that weather using postValue function but the observer on that livedata in the WeatherRepository class's init block never gets called.

I am confused as what am I missing...

Any insights would be extremely helpful.

Here's my code for Repository and Provider:

I am facing with Unit testing for the first time and I would like to know what is the best approach for the following scenario. I am using Mockito for the tests. The following test is for logic(Presenter) layer and I am trying to verify certain behaviors of the view.

App classes

The method of the Presenter that need to be include in the test:

I am trying to pulling data from server using retrofit inside listview but not shown any data

listview xml

I am trying to mock dependencies like what is suggested in https://artemzin.com/blog/how-to-mock-dependencies-in-unit-integration-and-functional-tests-dagger-robolectric-instrumentation/

Unfortunately I can't get past the following error when I run my AndroidJunit4 test :

Test running failed: Unable to find instrumentation info for: ComponentInfo{com.fisincorporated.aviationweather.test/android.support.test.runner.AndroidJUnitRunner}

I tried various SO solutions that were not Android Studio version dependent with no luck

My app level gradle code snippet is: