[TRIED] MainActivity Test

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

@@ -0,0 +1,64 @@
+package com.a1.nextlocation;
+
+import android.app.LauncherActivity;
+import android.widget.Button;
+
+import androidx.test.espresso.contrib.NavigationViewActions;
+import androidx.test.espresso.contrib.RecyclerViewActions;
+import androidx.test.espresso.matcher.RootMatchers;
+import androidx.test.rule.ActivityTestRule;
+
+import com.a1.nextlocation.fragments.CouponFragment;
+import com.google.android.material.bottomnavigation.BottomNavigationItemView;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.assertion.ViewAssertions.matches;
+import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static androidx.test.espresso.matcher.ViewMatchers.withText;
+
+public class MainActivityTest {
+
+    
+
+    @Rule
+    public ActivityTestRule<MainActivity> mActivityTestRule = new ActivityTestRule<>(MainActivity.class);
+
+    @Test
+    public void clickLocationsNavBar() throws Exception{
+        //Here we click the back button and then we check if the statisticsFragment is shown
+        mActivityTestRule.getActivity().getSupportFragmentManager().beginTransaction().commit();
+        onView(withId(R.id.locations)).perform(click());
+        onView(withId(R.id.homeFragment)).check(matches(isDisplayed()));
+    }
+
+    @Test
+    public void clickRouteNavBar() throws Exception{
+        //Here we click the back button and then we check if the statisticsFragment is shown
+        mActivityTestRule.getActivity().getSupportFragmentManager().beginTransaction().commit();
+        onView(withId(R.id.routes)).perform(NavigationViewActions.navigateTo(R.id.routes));
+        onView(withId(R.id.routeFragment)).check(matches(isDisplayed()));
+    }
+
+    @Test
+    public void clickStatisticsNavBar() throws Exception{
+        //Here we click the back button and then we check if the statisticsFragment is shown
+        mActivityTestRule.getActivity().getSupportFragmentManager().beginTransaction().commit();
+        onView(withId(R.id.statistics)).perform(click());
+        onView(withId(R.id.statisticsFragment)).check(matches(isDisplayed()));
+    }
+
+    @Test
+    public void clickSettingNavBar() throws Exception{
+        //Here we click the back button and then we check if the statisticsFragment is shown
+        mActivityTestRule.getActivity().getSupportFragmentManager().beginTransaction().commit();
+        onView(withId(R.id.settings)).perform(click());
+        onView(withId(R.id.settingFragment)).check(matches(isDisplayed()));
+    }
+
+}