Add unit tests for RoutingOptionManager.

Test: atest RoutingOptionManagerTest.java
Bug: b/329095291
Change-Id: I8d2e675bdee26332b23e3ef3633f933352288084
diff --git a/NfcNci/src/com/android/nfc/cardemulation/RoutingOptionManager.java b/NfcNci/src/com/android/nfc/cardemulation/RoutingOptionManager.java
index bf241bd..f417b26 100644
--- a/NfcNci/src/com/android/nfc/cardemulation/RoutingOptionManager.java
+++ b/NfcNci/src/com/android/nfc/cardemulation/RoutingOptionManager.java
@@ -18,6 +18,8 @@
 import android.os.SystemProperties;
 import android.util.Log;
 
+import androidx.annotation.VisibleForTesting;
+
 import com.android.nfc.NfcService;
 
 import java.util.Arrays;
@@ -42,12 +44,18 @@
 
     boolean mIsRoutingTableOverrided = false;
 
-    private native int doGetDefaultRouteDestination();
-    private native int doGetDefaultIsoDepRouteDestination();
-    private native int doGetDefaultOffHostRouteDestination();
-    private native byte[] doGetOffHostUiccDestination();
-    private native byte[] doGetOffHostEseDestination();
-    private native int doGetAidMatchingMode();
+    @VisibleForTesting
+    native int doGetDefaultRouteDestination();
+    @VisibleForTesting
+    native int doGetDefaultIsoDepRouteDestination();
+    @VisibleForTesting
+    native int doGetDefaultOffHostRouteDestination();
+    @VisibleForTesting
+    native byte[] doGetOffHostUiccDestination();
+    @VisibleForTesting
+    native byte[] doGetOffHostEseDestination();
+    @VisibleForTesting
+    native int doGetAidMatchingMode();
 
     public static RoutingOptionManager getInstance() {
         return RoutingOptionManager.Singleton.INSTANCE;
@@ -57,7 +65,8 @@
         private static final RoutingOptionManager INSTANCE = new RoutingOptionManager();
     }
 
-    private RoutingOptionManager() {
+    @VisibleForTesting
+    RoutingOptionManager() {
         mDefaultRoute = doGetDefaultRouteDestination();
         if (DBG)
             Log.d(TAG, "mDefaultRoute=0x" + Integer.toHexString(mDefaultRoute));
diff --git a/NfcNci/tests/unit/src/com/android/nfc/cardemulation/RoutingOptionManagerTest.java b/NfcNci/tests/unit/src/com/android/nfc/cardemulation/RoutingOptionManagerTest.java
new file mode 100644
index 0000000..e3872c3
--- /dev/null
+++ b/NfcNci/tests/unit/src/com/android/nfc/cardemulation/RoutingOptionManagerTest.java
@@ -0,0 +1,186 @@
+/*
+ * 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.cardemulation;
+
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.dx.mockito.inline.extended.ExtendedMockito;
+import com.android.nfc.NfcService;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+import org.mockito.MockitoSession;
+import org.mockito.quality.Strictness;
+
+@RunWith(AndroidJUnit4.class)
+public class RoutingOptionManagerTest {
+
+  @Mock
+  private NfcService mNfcService;
+
+  @Captor
+  private ArgumentCaptor<Integer> routeCaptor;
+
+  private static final int DEFAULT_ROUTE = 0;
+  private static final int DEFAULT_ISO_DEP_ROUTE = 1;
+  private static final int OVERRIDDEN_ISO_DEP_ROUTE = 10;
+  private static final int OVERRIDDEN_OFF_HOST_ROUTE = 20;
+  private static final int DEFAULT_OFF_HOST_ROUTE = 2;
+  private static final byte[] OFF_HOST_UICC = new byte[] {1, 2};
+  private static final byte[] OFF_HOST_ESE = new byte[] {3, 4};
+  private static final int AID_MATCHING_MODE = 3;
+
+  private static class TestRoutingOptionManager extends RoutingOptionManager {
+    @Override
+    int doGetDefaultRouteDestination() {
+      return DEFAULT_ROUTE;
+    }
+
+    @Override
+    int doGetDefaultIsoDepRouteDestination() {
+      return DEFAULT_ISO_DEP_ROUTE;
+    }
+
+    @Override
+    int doGetDefaultOffHostRouteDestination() {
+      return DEFAULT_OFF_HOST_ROUTE;
+    }
+
+    @Override
+    byte[] doGetOffHostUiccDestination() {
+      return OFF_HOST_UICC;
+    }
+
+    @Override
+    byte[] doGetOffHostEseDestination() {
+      return OFF_HOST_ESE;
+    }
+
+    @Override
+    int doGetAidMatchingMode() {
+      return AID_MATCHING_MODE;
+    }
+  }
+
+  private TestRoutingOptionManager manager;
+  private MockitoSession mStaticMockSession;
+
+  @Before
+  public void setUp() throws Exception {
+    mStaticMockSession = ExtendedMockito.mockitoSession()
+        .mockStatic(NfcService.class)
+        .strictness(Strictness.LENIENT)
+        .startMocking();
+    MockitoAnnotations.initMocks(this);
+
+    when(NfcService.getInstance()).thenReturn(mNfcService);
+  }
+
+  @After
+  public void tearDown() {
+    mStaticMockSession.finishMocking();
+  }
+
+  @Test
+  public void testConstructor() {
+    manager = new TestRoutingOptionManager();
+
+    Assert.assertEquals(DEFAULT_ROUTE, manager.mDefaultRoute);
+    Assert.assertEquals(DEFAULT_ISO_DEP_ROUTE, manager.mDefaultIsoDepRoute);
+    Assert.assertEquals(DEFAULT_OFF_HOST_ROUTE, manager.mDefaultOffHostRoute);
+    Assert.assertEquals(OFF_HOST_UICC, manager.mOffHostRouteUicc);
+    Assert.assertEquals(OFF_HOST_ESE, manager.mOffHostRouteEse);
+    Assert.assertEquals(AID_MATCHING_MODE, manager.mAidMatchingSupport);
+  }
+
+  @Test
+  public void testOverrideDefaultIsoDepRoute() {
+    manager = new TestRoutingOptionManager();
+
+    manager.overrideDefaultIsoDepRoute(OVERRIDDEN_ISO_DEP_ROUTE);
+
+    Assert.assertEquals(OVERRIDDEN_ISO_DEP_ROUTE, manager.mOverrideDefaultRoute);
+    Assert.assertEquals(OVERRIDDEN_ISO_DEP_ROUTE, manager.mOverrideDefaultIsoDepRoute);
+    verify(mNfcService).setIsoDepProtocolRoute(routeCaptor.capture());
+    Assert.assertEquals(routeCaptor.getValue(), Integer.valueOf(OVERRIDDEN_ISO_DEP_ROUTE));
+  }
+
+  @Test
+  public void testOverrideDefaultOffHostRoute() {
+    manager = new TestRoutingOptionManager();
+
+    manager.overrideDefaultOffHostRoute(OVERRIDDEN_OFF_HOST_ROUTE);
+
+    Assert.assertEquals(OVERRIDDEN_OFF_HOST_ROUTE, manager.mOverrideDefaultOffHostRoute);
+    verify(mNfcService).setTechnologyABRoute(routeCaptor.capture());
+    Assert.assertEquals(routeCaptor.getValue(), Integer.valueOf(OVERRIDDEN_OFF_HOST_ROUTE));
+  }
+
+  @Test
+  public void testRecoverOverridedRoutingTable() {
+    manager = new TestRoutingOptionManager();
+
+    manager.recoverOverridedRoutingTable();
+
+    verify(mNfcService).setIsoDepProtocolRoute(anyInt());
+    verify(mNfcService).setTechnologyABRoute(anyInt());
+    Assert.assertEquals(RoutingOptionManager.ROUTE_UNKNOWN, manager.mOverrideDefaultRoute);
+    Assert.assertEquals(RoutingOptionManager.ROUTE_UNKNOWN, manager.mOverrideDefaultIsoDepRoute);
+    Assert.assertEquals(RoutingOptionManager.ROUTE_UNKNOWN, manager.mOverrideDefaultOffHostRoute);
+  }
+
+  @Test
+  public void testGetters() {
+    manager = new TestRoutingOptionManager();
+
+    int overrideDefaultRoute = manager.getOverrideDefaultRoute();
+    int defaultRoute = manager.getDefaultRoute();
+    int defaultIsoDepRoute = manager.getDefaultIsoDepRoute();
+    int defaultOffHostRoute = manager.getDefaultOffHostRoute();
+    byte[] offHostRouteUicc = manager.getOffHostRouteUicc();
+    byte[] offHostRouteEse = manager.getOffHostRouteEse();
+    int aidMatchingSupport = manager.getAidMatchingSupport();
+
+    Assert.assertEquals(-1, overrideDefaultRoute);
+    Assert.assertEquals(DEFAULT_ROUTE, defaultRoute);
+    Assert.assertEquals(DEFAULT_ISO_DEP_ROUTE, defaultIsoDepRoute);
+    Assert.assertEquals(DEFAULT_OFF_HOST_ROUTE, defaultOffHostRoute);
+    Assert.assertEquals(offHostRouteUicc, OFF_HOST_UICC);
+    Assert.assertEquals(offHostRouteEse, OFF_HOST_ESE);
+    Assert.assertEquals(AID_MATCHING_MODE, aidMatchingSupport);
+  }
+
+  @Test
+  public void testIsRoutingTableOverrided() {
+    manager = new TestRoutingOptionManager();
+
+    boolean result = manager.isRoutingTableOverrided();
+
+    Assert.assertFalse(result);
+  }
+}