Merge "Test : Adding Test Cases for RegisteredAidCache" into main
diff --git a/src/com/android/nfc/cardemulation/RegisteredAidCache.java b/src/com/android/nfc/cardemulation/RegisteredAidCache.java
index 22f040a..3cb220f 100644
--- a/src/com/android/nfc/cardemulation/RegisteredAidCache.java
+++ b/src/com/android/nfc/cardemulation/RegisteredAidCache.java
@@ -43,6 +43,7 @@
 import java.util.NavigableMap;
 import java.util.PriorityQueue;
 import java.util.TreeMap;
+import androidx.annotation.VisibleForTesting;
 
 public class RegisteredAidCache {
     static final String TAG = "RegisteredAidCache";
@@ -155,8 +156,13 @@
     boolean mRequiresScreenOnServiceExist = false;
 
     public RegisteredAidCache(Context context) {
+        this(context, new AidRoutingManager());
+    }
+
+    @VisibleForTesting
+    public RegisteredAidCache(Context context, AidRoutingManager routingManager) {
         mContext = context;
-        mRoutingManager = new AidRoutingManager();
+        mRoutingManager = routingManager ;
         mPreferredPaymentService = null;
         mUserIdPreferredPaymentService = -1;
         mPreferredForegroundService = null;
diff --git a/tests/unit/src/com/android/nfc/RegisteredAidCacheTest.java b/tests/unit/src/com/android/nfc/RegisteredAidCacheTest.java
new file mode 100644
index 0000000..b4faa8d
--- /dev/null
+++ b/tests/unit/src/com/android/nfc/RegisteredAidCacheTest.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.nfc;
+
+import static org.mockito.Mockito.mock;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.ContextWrapper;
+import android.content.pm.PackageManager;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoSession;
+import org.mockito.quality.Strictness;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.platform.app.InstrumentationRegistry;
+
+import com.android.dx.mockito.inline.extended.ExtendedMockito;
+import com.android.nfc.cardemulation.AidRoutingManager;
+import com.android.nfc.cardemulation.RegisteredAidCache;
+
+@RunWith(AndroidJUnit4.class)
+public class RegisteredAidCacheTest {
+
+    private static final String TAG = RegisteredAidCacheTest.class.getSimpleName();
+    private boolean mNfcSupported;
+    private MockitoSession mStaticMockSession;
+    private RegisteredAidCache mRegisteredAidCache;
+    private Context mockContext;
+
+    @Before
+    public void setUp() throws Exception {
+        mStaticMockSession = ExtendedMockito.mockitoSession()
+                .strictness(Strictness.LENIENT)
+                .startMocking();
+
+        Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        PackageManager pm = context.getPackageManager();
+        if (!pm.hasSystemFeature(PackageManager.FEATURE_NFC_ANY)) {
+            mNfcSupported = false;
+            return;
+        }
+        mNfcSupported = true;
+
+        mockContext = new ContextWrapper(context) {
+
+        };
+
+        AidRoutingManager routingManager = mock(AidRoutingManager.class);
+        InstrumentationRegistry.getInstrumentation().runOnMainSync(
+                () -> mRegisteredAidCache = new RegisteredAidCache(mockContext, routingManager));
+        Assert.assertNotNull(mRegisteredAidCache);
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        mStaticMockSession.finishMocking();
+    }
+
+
+    @Test
+    public void testOnPreferredForegroundServiceChanged() {
+        if (!mNfcSupported) return;
+
+        ComponentName componentName = mRegisteredAidCache.getPreferredService();
+        Assert.assertNull(componentName);
+
+        componentName = new ComponentName("com.android.nfc",
+                RegisteredAidCacheTest.class.getName());
+        mRegisteredAidCache.onPreferredForegroundServiceChanged(0, componentName);
+        ComponentName preferredService = mRegisteredAidCache.getPreferredService();
+
+        Assert.assertNotNull(preferredService);
+        Assert.assertEquals(componentName.getClassName(), preferredService.getClassName());
+    }
+
+}
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