Serial num scanning espresso test

app/src/androidTest/java/com/example/househomey/EditItemFragmentTest.java

@@ -102,7 +102,7 @@ public void testDeleteExistingPhoto() {
         onView(withId(R.id.delete_photo_button)).perform(click());
 
         // Check that photo was deleted from the gallery
-        onView(withId(R.id.add_photo_grid)).check(matches(hasChildCount(1)));
+        waitFor(() -> onView(withId(R.id.add_photo_grid)).check(matches(hasChildCount(1))));
         onView(withId(R.id.add_photo_grid)).check(matches(not((hasDescendant(allOf(withId(R.id.gallery_image_view), isDisplayed()))))));
     }
 }

app/src/androidTest/java/com/example/househomey/SerialNumScannerTest.java

@@ -0,0 +1,59 @@
+package com.example.househomey;
+
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.action.ViewActions.scrollTo;
+import static androidx.test.espresso.assertion.ViewAssertions.matches;
+import static androidx.test.espresso.intent.Intents.intended;
+import static androidx.test.espresso.intent.matcher.IntentMatchers.hasAction;
+import static androidx.test.espresso.matcher.ViewMatchers.hasChildCount;
+import static androidx.test.espresso.matcher.ViewMatchers.hasDescendant;
+import static androidx.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static androidx.test.espresso.matcher.ViewMatchers.withText;
+import static com.example.househomey.testUtils.TestHelpers.mockImageUri;
+import static com.example.househomey.testUtils.TestHelpers.waitFor;
+import static org.hamcrest.CoreMatchers.allOf;
+
+import android.app.Activity;
+import android.app.Instrumentation;
+import android.content.Intent;
+
+import androidx.test.espresso.intent.Intents;
+import androidx.test.espresso.intent.matcher.IntentMatchers;
+
+import com.example.househomey.testUtils.TestSetup;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class SerialNumScannerTest extends TestSetup {
+    @Before
+    public void navigateToAddItemFragment() {
+        onView(withId(R.id.action_add)).perform(click());
+    }
+
+    @Test
+    public void testScanPhoto() {
+        // Mock a result for the system's gallery
+        Intents.init();
+        Intent resultData = new Intent();
+        resultData.setData(mockImageUri(R.raw.serial_num));
+        Instrumentation.ActivityResult result = new Instrumentation.ActivityResult(Activity.RESULT_OK, resultData);
+        Intents.intending(IntentMatchers.hasAction(Intent.ACTION_PICK)).respondWith(result);
+
+        onView(withId(R.id.add_item_scan_button)).perform(scrollTo());
+        onView(withId(R.id.add_item_scan_button)).perform(click());
+        onView(withId(R.id.serialNum_button)).perform(click());
+
+        // Click the gallery option and ensure intent was fired
+        onView(withId(R.id.gallery_button)).perform(click());
+        intended(hasAction(Intent.ACTION_PICK));
+        Intents.release();
+
+        waitFor(() -> onView(withText("YES")).perform(click()));
+
+        // Check that the serial number
+        onView(withId(R.id.add_item_serial_number)).check(matches(withText("7730002690")));
+    }
+}

app/src/main/java/com/example/househomey/form/ItemFormFragment.java

@@ -256,7 +256,7 @@ public void onImagePicked(String imageUri) {
     }
 
     /**
-     * Sets the result of the Serial Number scanning in the serial numbner text view
+     * Sets the result of the Serial Number scanning in the serial number text view
      * @param serialNumber the scanned serial number to set
      */
     @Override