Adds LockScreen SafetySource and SafetySource broadcast receivers.

Adds a basic LockScreen SafetySource with placeholder data.
Adds a no-op Biometric SafetySource.
Adds Broadcast Receiver and responds with data.

Test: atest SettingsUnitTests
Bug: 215516488
Bug: 215515448
Change-Id: I753a10f63fc73984c7ff96347b927bb2ca5a0aba

tests/unit/src/com/android/settings/safetycenter/BiometricsSafetySourceTest.java

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2022 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.safetycenter;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+@RunWith(AndroidJUnit4.class)
+public class BiometricsSafetySourceTest {
+
+    private Context mApplicationContext;
+
+    @Mock
+    private SafetyCenterManagerWrapper mSafetyCenterManagerWrapper;
+
+    @Mock
+    private SafetyCenterStatusHolder mSafetyCenterStatusHolder;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mApplicationContext = ApplicationProvider.getApplicationContext();
+        SafetyCenterManagerWrapper.sInstance = mSafetyCenterManagerWrapper;
+        SafetyCenterStatusHolder.sInstance = mSafetyCenterStatusHolder;
+    }
+
+    @After
+    public void tearDown() {
+        SafetyCenterManagerWrapper.sInstance = null;
+        SafetyCenterStatusHolder.sInstance = null;
+    }
+
+    @Test
+    public void sendSafetyData_whenSafetyCenterIsDisabled_sendsNoData() {
+        when(mSafetyCenterStatusHolder.isEnabled(mApplicationContext)).thenReturn(false);
+
+        BiometricsSafetySource.sendSafetyData(mApplicationContext);
+
+        verify(mSafetyCenterManagerWrapper, never()).sendSafetyCenterUpdate(any(), any());
+    }
+
+    @Test
+    // TODO(b/215517420): Adapt this test when method is implemented.
+    public void sendSafetyData_whenSafetyCenterIsEnabled_sendsNoData() {
+        when(mSafetyCenterStatusHolder.isEnabled(mApplicationContext)).thenReturn(true);
+
+        BiometricsSafetySource.sendSafetyData(mApplicationContext);
+
+        verify(mSafetyCenterManagerWrapper, never()).sendSafetyCenterUpdate(any(), any());
+    }
+}