[ADD] Location Tests + ID at every XML file

app/build.gradle

@@ -56,4 +56,7 @@ dependencies {
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
     testImplementation 'org.mockito:mockito-core:2.7.22'
+    androidTestImplementation 'com.21buttons:fragment-test-rule:2.0.1'
+    androidTestImplementation 'androidx.test:rules:1.3.0-beta01'
+    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.4.0-alpha02'
 }

app/src/androidTest/java/com/a1/nextlocation/LocationFragmentTest.java

@@ -0,0 +1,41 @@
+package com.a1.nextlocation;
+
+import androidx.test.espresso.contrib.RecyclerViewActions;
+import androidx.test.rule.ActivityTestRule;
+
+import com.a1.nextlocation.fragments.LocationFragment;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import javax.inject.Inject;
+
+import static androidx.test.espresso.Espresso.*;
+import static androidx.test.espresso.action.ViewActions.*;
+import static androidx.test.espresso.assertion.ViewAssertions.*;
+import static androidx.test.espresso.matcher.ViewMatchers.*;
+
+
+public class LocationFragmentTest {
+
+    @Rule
+    public ActivityTestRule<MainActivity> mActivityTestRule = new ActivityTestRule<>(MainActivity.class);
+
+    @Test
+    public void clickBackButton() throws Exception{
+        mActivityTestRule.getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.mainActivity, new LocationFragment()).commit();
+        onView(withId(R.id.locationBackButton)).perform(click());
+        onView(withId(R.id.homeFragment)).check(matches(isDisplayed()));
+
+    }
+
+    @Test
+    public void clickDetailButton() throws Exception{
+        mActivityTestRule.getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.mainActivity, new LocationFragment()).commit();
+        onView(withId(R.id.locationRecyclerView)).perform(RecyclerViewActions.actionOnItemAtPosition(1, click()));
+        onView(withId(R.id.locationDetailFragment)).check(matches(isDisplayed()));
+
+    }
+
+}

app/src/main/res/layout/activity_main.xml

@@ -4,6 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:id="@+id/mainActivity"
     tools:context=".MainActivity">
 
     <FrameLayout

app/src/main/res/layout/coupon_item.xml

@@ -2,6 +2,7 @@
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
+    android:id="@+id/couponItem"
     android:layout_height="wrap_content">
 
     <androidx.constraintlayout.widget.ConstraintLayout

app/src/main/res/layout/fragment_coupon.xml

@@ -5,6 +5,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@color/primaryColour"
+    android:id="@+id/couponFragment"
     tools:context=".fragments.LocationFragment">
 
     <TextView

app/src/main/res/layout/fragment_home.xml

@@ -4,6 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:id="@+id/homeFragment"
     tools:context=".fragments.HomeFragment">
 
 

app/src/main/res/layout/fragment_location.xml

@@ -5,6 +5,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@color/primaryColour"
+    android:id="@+id/locationFragment"
     tools:context=".fragments.LocationFragment">
 
     <TextView
@@ -35,5 +36,5 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/routeBackButton" />
+        app:layout_constraintTop_toBottomOf="@+id/locationBackButton" />
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/fragment_location_detail.xml

@@ -5,6 +5,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@color/primaryColour"
+    android:id="@+id/locationDetailFragment"
     tools:context=".fragments.LocationDetailFragment">
 
     <TextView

app/src/main/res/layout/fragment_route.xml

@@ -5,6 +5,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="@color/primaryColour"
+    android:id="@+id/routeFragment"
     tools:context=".fragments.RouteFragment">
 
     <ImageButton

app/src/main/res/layout/fragment_route_detail.xml

@@ -5,6 +5,7 @@
     android:layout_height="match_parent"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:background="@color/primaryColour"
+    android:id="@+id/routeDetailFragment"
     tools:context=".fragments.RouteDetailFragment">
 
     <ImageButton

app/src/main/res/layout/fragment_settings.xml

@@ -5,6 +5,7 @@
     android:layout_height="match_parent"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:background="@color/primaryColour"
+    android:id="@+id/settingFragment"
     tools:context=".fragments.SettingsFragment">
 
     <androidx.appcompat.widget.AppCompatImageButton

app/src/main/res/layout/fragment_statistic.xml

@@ -5,6 +5,7 @@
     android:layout_height="match_parent"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:background="@color/primaryColour"
+    android:id="@+id/statisticsFragment"
     tools:context=".fragments.StatisticFragment">
 
     <TextView

app/src/main/res/layout/location_item.xml

@@ -4,6 +4,7 @@
     android:layout_height="50dp"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:background="@color/secondaryColour"
+    android:id="@+id/locationItem"
     android:layout_margin="20dp">
 
     <ImageView

app/src/main/res/layout/route_item.xml

@@ -4,6 +4,7 @@
     android:layout_height="50dp"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:background="@color/secondaryColour"
+    android:id="@+id/routeItem"
     android:layout_margin="20dp">
 
     <ImageView