Imperial units (#24)

- change location retrieval accuracy
 - change location retrieval caching from location provider
 - expand unit test suite
 - code refactoring
 - Imperial units added
 - UI test for unit change

app/src/androidTestMonoWeather/java/com/appttude/h_mal/monoWeather/robot/SettingsRobot.kt

@@ -0,0 +1,48 @@
+package com.appttude.h_mal.monoWeather.robot
+
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.action.ViewActions.click
+import androidx.test.espresso.assertion.ViewAssertions
+import androidx.test.espresso.contrib.RecyclerViewActions
+import androidx.test.espresso.matcher.RootMatchers.isDialog
+import androidx.test.espresso.matcher.ViewMatchers
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import androidx.test.espresso.matcher.ViewMatchers.withText
+import com.appttude.h_mal.atlas_weather.BaseTestRobot
+import com.appttude.h_mal.atlas_weather.R
+import com.appttude.h_mal.atlas_weather.model.types.UnitType
+
+
+fun settingsScreen(func: SettingsScreen.() -> Unit) = SettingsScreen().apply { func() }
+class SettingsScreen : BaseTestRobot() {
+
+    fun selectWeatherUnits(unitType: UnitType) {
+        onView(withId(androidx.preference.R.id.recycler_view))
+            .perform(
+                RecyclerViewActions.actionOnItem<ViewHolder>(
+                    ViewMatchers.hasDescendant(withText(R.string.weather_units)),
+                    click()))
+        val label = when (unitType) {
+            UnitType.METRIC -> "Metric"
+            UnitType.IMPERIAL -> "Imperial"
+        }
+
+        onView(withText(label))
+            .inRoot(isDialog())
+            .check(ViewAssertions.matches(ViewMatchers.isDisplayed()))
+            .perform(click())
+    }
+
+
+    fun verifyCurrentTemperature(temperature: Int) =
+        matchText(R.id.temp_main_4, temperature.toString())
+
+    fun verifyCurrentLocation(location: String) = matchText(R.id.location_main_4, location)
+    fun refresh() = pullToRefresh(R.id.swipe_refresh)
+
+    fun verifyUnableToRetrieve() {
+        matchText(R.id.header_text, R.string.retrieve_warning)
+        matchText(R.id.body_text, R.string.empty_retrieve_warning)
+    }
+}

app/src/androidTestMonoWeather/java/com/appttude/h_mal/monoWeather/tests/HomePageUITest.kt

@@ -2,8 +2,10 @@ package com.appttude.h_mal.monoWeather.tests
 
 
 import com.appttude.h_mal.atlas_weather.BaseTest
+import com.appttude.h_mal.atlas_weather.model.types.UnitType
 import com.appttude.h_mal.atlas_weather.ui.MainActivity
 import com.appttude.h_mal.atlas_weather.utils.Stubs
+import com.appttude.h_mal.monoWeather.robot.settingsScreen
 import com.appttude.h_mal.monoWeather.robot.weatherScreen
 import org.junit.Test
 
@@ -11,6 +13,7 @@ class HomePageUITest : BaseTest<MainActivity>(MainActivity::class.java) {
 
     override fun beforeLaunch() {
         stubEndpoint("https://api.openweathermap.org/data/2.5/onecall", Stubs.Metric)
+        clearPrefs()
     }
 
     @Test
@@ -21,4 +24,25 @@ class HomePageUITest : BaseTest<MainActivity>(MainActivity::class.java) {
             verifyCurrentLocation("Mock Location")
         }
     }
+
+    @Test
+    fun loadApp_changeToImperial_returnsValidPage() {
+        weatherScreen {
+            isDisplayed()
+            verifyCurrentTemperature(2)
+            verifyCurrentLocation("Mock Location")
+            stubEndpoint("https://api.openweathermap.org/data/2.5/onecall", Stubs.Imperial)
+            openMenuItem()
+        }
+        settingsScreen {
+            selectWeatherUnits(UnitType.IMPERIAL)
+            goBack()
+        }
+        weatherScreen {
+            isDisplayed()
+            refresh()
+            verifyCurrentTemperature(58)
+            verifyCurrentLocation("Mock Location")
+        }
+    }
 }