Added file ShayahnTestCases, edited build.gradle file

app/build.gradle

@@ -52,6 +52,9 @@ android {
         androidTestImplementation "androidx.arch.core:core-testing:$rootProject.coreTestingVersion"
         androidTestImplementation ("androidx.test.espresso:espresso-core:$rootProject.espressoVersion", {
             exclude group: 'com.android.support', module: 'support-annotations'
+        })
+        androidTestImplementation ("androidx.test.espresso:espresso-core:$rootProject.espressoVersion", {
+
         })
         androidTestImplementation "androidx.test.ext:junit:$rootProject.androidxJunitVersion"
     }

app/src/main/java/com/example/frogger2340project/PlayerConfig.java

@@ -1,12 +1,12 @@
 package com.example.frogger2340project;
 
-import androidx.appcompat.app.AppCompatActivity;
-
 import android.os.Bundle;
 import android.view.View;
 import android.widget.EditText;
 import android.widget.RadioButton;
 
+import androidx.appcompat.app.AppCompatActivity;
+
 public class PlayerConfig extends AppCompatActivity {
 
     private EditText playerNameText;
@@ -80,4 +80,6 @@ public void startGame(View view) {
     public static String getPlayerName() {
         return playerName;
     }
+
+    public String getDifficulty() {return difficulty;}
 }

app/src/test/java/com/example/frogger2340project/ShayahnTestCases.java

@@ -1,13 +1,23 @@
 package com.example.frogger2340project;
 
-import static org.junit.Assert.*;
+import static org.junit.Assert.assertEquals;
+
+import android.widget.RadioButton;
 
 import org.junit.Test;
 
+// import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+// @RunWith(AndroidJUnit4.class)
 public class ShayahnTestCases {
 
     @Test
     public void onDifficultyButtonClicked() {
+        MainActivity activity = new MainActivity();
+        PlayerConfig config = new PlayerConfig();
+        RadioButton rb = (RadioButton) activity.findViewById(R.id.Easy);
+        config.onDifficultyButtonClicked(rb);
+        assertEquals("Easy", config.getDifficulty());
     }
 
     @Test

build.gradle

@@ -15,4 +15,5 @@ ext {
     junitVersion = '4.13.2'
     espressoVersion = '3.4.0'
     androidxJunitVersion = '1.1.2'
+    testImplementation = "androidx.arch.core:core-testing:2.1.0"
 }