Merge Tap & Pay settings entries with NFC

Bug: 142231537
Test: make -j42 RunSettingsRoboTests
Change-Id: I54ea0cdf711f2c381f5bba8575fc22bd6329f3c6

tests/robotests/src/com/android/settings/applications/specialaccess/DefaultPaymentSettingsPreferenceControllerTest.java

@@ -76,4 +76,14 @@ public class DefaultPaymentSettingsPreferenceControllerTest {
 
         assertThat(mController.isAvailable()).isFalse();
     }
+
+    @Test
+    public void getAvailabilityStatus_NfcIsDisabled_shouldReturnDisabled() {
+        when(mPackageManager.hasSystemFeature(anyString())).thenReturn(true);
+        when(mUserManager.isAdminUser()).thenReturn(true);
+        when(mNfcAdapter.isEnabled()).thenReturn(false);
+
+        assertThat(mController.getAvailabilityStatus()).isEqualTo(
+                DefaultPaymentSettingsPreferenceController.DISABLED_DEPENDENT_SETTING);
+    }
 }

tests/robotests/src/com/android/settings/applications/specialaccess/PaymentSettingsEnablerTest.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2020 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.settings.applications.specialaccess;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+
+import android.content.Context;
+import android.nfc.NfcAdapter;
+
+import androidx.preference.Preference;
+
+import com.android.settings.R;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class PaymentSettingsEnablerTest {
+    private Context mContext;
+    private Preference mPreference;
+    private PaymentSettingsEnabler mEnabler;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mPreference = new Preference(mContext);
+        mEnabler = spy(new PaymentSettingsEnabler(mContext, mPreference));
+    }
+
+    @Test
+    public void handleNfcStateChanged_stateOff_shouldChangeSummaryAndDisablePreference() {
+        mEnabler.handleNfcStateChanged(NfcAdapter.STATE_OFF);
+
+        assertThat(mPreference.getSummary().toString()).contains(
+                mContext.getString(R.string.nfc_and_payment_settings_payment_off_nfc_off_summary));
+        assertThat(mPreference.isEnabled()).isFalse();
+    }
+
+    @Test
+    public void handleNfcStateChanged_stateOn_shouldClearSummaryAndEnablePreference() {
+        mEnabler.handleNfcStateChanged(NfcAdapter.STATE_ON);
+
+        assertThat(mPreference.getSummary()).isNull();
+        assertThat(mPreference.isEnabled()).isTrue();
+    }
+}