Clean up SmsApplication and expose getDefaultSmsPackage

- Clean up usages of hidden AppOpsManager APIs in SmsApplication
- Add unit tests for SmsApplication
- Expose RoleManager#getDefaultSmsPackage for use in SmsApplication.

Bug: 146834818
Test: atest SmsApplicationTest
Change-Id: I4ab49d7f6274389e7de7cd7223cab3c433936044
diff --git a/tests/TelephonyCommonTests/AndroidTest.xml b/tests/TelephonyCommonTests/AndroidTest.xml
new file mode 100644
index 0000000..e9fdabc
--- /dev/null
+++ b/tests/TelephonyCommonTests/AndroidTest.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2019 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.
+  -->
+<configuration description="Runs Telephony Common Test Cases.">
+    <option name="test-suite-tag" value="apct" />
+    <option name="test-suite-tag" value="apct-instrumentation" />
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="test-file-name" value="TelephonyCommonTests.apk" />
+    </target_preparer>
+
+    <option name="test-tag" value="TelephonyCommonTests" />
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="com.android.internal.telephony.tests" />
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner" />
+    </test>
+</configuration>