Merge branch 'feature/tests'

data/src/test/java/com/example/data/WeatherRepositoryTest.kt

@@ -0,0 +1,40 @@
+package com.example.data
+
+import com.example.data.database.dao.WeatherDao
+import com.example.data.networking.WeatherApi
+import com.example.data.repository.weather.WeatherRepositoryImpl
+import com.example.data.utils.*
+import com.nhaarman.mockitokotlin2.*
+import kotlinx.coroutines.runBlocking
+import org.junit.Test
+import retrofit2.Response
+
+class WeatherRepositoryTest {
+
+  private val weatherTestApi: WeatherApi = mock()
+  private val weatherDao: WeatherDao = mock()
+  private val weatherRepository = WeatherRepositoryImpl(weatherTestApi, weatherDao)
+
+  @Test
+  fun `test getWeatherForLocation calls api and saves data to db upon success`() {
+    runBlocking {
+      whenever(weatherTestApi.getWeatherForLocation(OSIJEK_CITY_NAME)).thenReturn(Response.success(successWeatherInfoResponse))
+      whenever(weatherDao.updateWeatherAndReturn(successWeatherInfoResponse.mapToRoomEntity())).thenReturn(fakeWeatherEntity)
+      weatherRepository.getWeatherForLocation(OSIJEK_CITY_NAME)
+      verify(weatherTestApi, times(1)).getWeatherForLocation(OSIJEK_CITY_NAME)
+      verify(weatherDao, times(1)).updateWeatherAndReturn(fakeWeatherEntity)
+    }
+  }
+
+  @Test
+  fun `test getWeatherForLocation calls api and returns cached data from db upon failure`() {
+    runBlocking {
+      whenever(weatherTestApi.getWeatherForLocation(OSIJEK_CITY_NAME))
+          .thenReturn(Response.error(FAKE_FAILURE_ERROR_CODE, failureResponseBody))
+      weatherRepository.getWeatherForLocation(OSIJEK_CITY_NAME)
+      verify(weatherTestApi, times(1)).getWeatherForLocation(OSIJEK_CITY_NAME)
+//      verify(weatherDao, times(1)).getWeatherInfoForCity(OSIJEK_CITY_NAME)
+      verify(weatherDao, never()).updateWeatherAndReturn(fakeWeatherEntity)
+    }
+  }
+}

data/src/test/java/com/example/data/utils/TestUtils.kt

@@ -0,0 +1,14 @@
+package com.example.data.utils
+
+import com.example.data.database.model.WeatherEntity
+import com.example.data.networking.model.MainInfo
+import com.example.data.networking.model.WeatherInfoResponse
+import okhttp3.MediaType
+import okhttp3.ResponseBody
+
+const val OSIJEK_CITY_NAME = "Osijek"
+const val FAKE_FAILURE_ERROR_CODE = 400
+
+val successWeatherInfoResponse = WeatherInfoResponse(0, arrayListOf(), MainInfo(), "")
+val failureResponseBody = ResponseBody.create(MediaType.parse("text"), "network error")
+val fakeWeatherEntity = WeatherEntity(0, arrayListOf(), MainInfo(), "")

domain/src/test/java/com/example/domain/WeatherUseCaseTest.kt

@@ -11,7 +11,6 @@ import org.junit.runner.RunWith
 import org.junit.runners.JUnit4
 import org.mockito.junit.MockitoJUnitRunner
 
-@RunWith(MockitoJUnitRunner::class)
 class WeatherUseCaseTest {
 
   private val weatherRepository: WeatherRepository = mock()