Revert "Add a test BroadCastReceiver to receive carrier Config"

Revert "[Tethering] Add MTS method to TetheringManagerTest."

Revert submission 2046446-tethering_entitlement_MTS

Reason for revert: This test never pass. Now tethering module release is blocked by MTS fail. TH don't catch this probably because b/234680138 cause this test don't actually run at the moment.

Reverted Changes:
Ica95c0d5b:Add a test BroadCastReceiver to receive carrier Co...
I5f758fe0c:[Tethering] Add MTS method to TetheringManagerTest...

Change-Id: I2606b105ad955958b555dcd7d03f5371e49cd22a
diff --git a/staticlibs/testutils/devicetests/com/android/testutils/TestCarrierConfigReceiver.java b/staticlibs/testutils/devicetests/com/android/testutils/TestCarrierConfigReceiver.java
deleted file mode 100644
index ffd88fd..0000000
--- a/staticlibs/testutils/devicetests/com/android/testutils/TestCarrierConfigReceiver.java
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * 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.testutils;
-
-import static android.telephony.CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED;
-
-import static com.android.testutils.TestPermissionUtil.runAsShell;
-
-import static org.junit.Assert.assertTrue;
-
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.os.PersistableBundle;
-import android.telephony.CarrierConfigManager;
-import android.telephony.SubscriptionManager;
-
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
-
-/** A receiver to receive carrier config and can be awaiting the result of config change. */
-public class TestCarrierConfigReceiver extends BroadcastReceiver {
-    // CountDownLatch used to wait for this BroadcastReceiver to be notified of a CarrierConfig
-    // change. This latch will be counted down if a broadcast indicates this package has carrier
-    // configs, or if an Exception occurs in #onReceive.
-    private final CountDownLatch mLatch = new CountDownLatch(1);
-    private final int mSubId;
-    private final int mTimeoutMs;
-    private final PersistableBundle mRequestedConfig;
-    private final Matcher mMatcher;
-    private final Context mContext;
-    private final CarrierConfigManager mCarrierConfigManager;
-
-    private volatile PersistableBundle mReceivedConfigs;
-    private volatile Exception mOnReceiveException;
-
-    /** A interface for doing the carrier config match between requested and received one.*/
-    public interface Matcher {
-        /**
-         * Called when a broadcast is received in order to determine whether the
-         * broadcast matches expectations.
-         *
-         *  - If this method returns true, waitForCarrierConfigChanged returns.
-         *  - If this method returns false, the broadcast will be ignored and
-         *  waitForCarrierConfigChanged will continue to wait. If this method throws an exception,
-         *  the exception will be stored and re-thrown by waitForCarrierConfigChanged.
-         */
-        boolean matchesBroadcast(PersistableBundle config) throws Exception;
-    }
-
-    public TestCarrierConfigReceiver(
-            Context context,
-            int subId,
-            int timeoutMs,
-            PersistableBundle requestedConfig,
-            Matcher matcher) {
-        mContext = context;
-        mSubId = subId;
-        mTimeoutMs = timeoutMs;
-        mRequestedConfig = requestedConfig;
-        mMatcher = matcher;
-        mCarrierConfigManager = mContext.getSystemService(CarrierConfigManager.class);
-    }
-
-    @Override
-    public void onReceive(Context context, Intent intent) {
-        if (!CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED.equals(intent.getAction())) {
-            // Ignores this incorrect broadcast.
-            return;
-        }
-
-        int subId = intent.getIntExtra(CarrierConfigManager.EXTRA_SUBSCRIPTION_INDEX,
-                        SubscriptionManager.INVALID_SUBSCRIPTION_ID);
-        if (mSubId != subId) {
-            // Ignores this broadcast for the wrong subId.
-            return;
-        }
-        mReceivedConfigs = getCarrierConfigs(subId);
-
-        if (!CarrierConfigManager.isConfigForIdentifiedCarrier(mReceivedConfigs)) {
-            // Configs are not for an identified carrier (meaning they are defaults) - ignore
-            return;
-        }
-
-        try {
-            if (mMatcher.matchesBroadcast(mReceivedConfigs)) {
-                mLatch.countDown();
-            }
-        } catch (Exception e) {
-            // Throw an Exception - cache it and allow waitForCarrierConfigChanged() to throw it
-            mOnReceiveException = e;
-            mLatch.countDown();
-        }
-    }
-
-    private PersistableBundle getCarrierConfigs(int subId) {
-        return runAsShell(android.Manifest.permission.READ_PHONE_STATE,
-                () -> mCarrierConfigManager.getConfigForSubId(subId));
-    }
-
-    private void waitForCarrierConfigChanged() throws Exception {
-        try {
-            assertTrue("No matching carrier config broadcast received after " + mTimeoutMs
-                            + " milliseconds.", mLatch.await(mTimeoutMs, TimeUnit.MILLISECONDS));
-            // If latch is unlocked and mOnReceiveException is assigned,
-            // it shall throw the exception.
-            if (mOnReceiveException != null) {
-                throw mOnReceiveException;
-            }
-        } finally {
-            mContext.unregisterReceiver(this);
-        }
-    }
-
-    /**
-     * Override the carrier config and waiting for the carrier config change.
-     * @return A PersistentBundle with received carrier configs.
-     * @throws Exception Once timout happened, it may throw a timout exception.
-     */
-    public PersistableBundle overrideCarrierConfigForTest() throws Exception {
-        IntentFilter filter = new IntentFilter();
-        filter.addAction(ACTION_CARRIER_CONFIG_CHANGED);
-        mContext.registerReceiver(this, filter);
-        runAsShell(android.Manifest.permission.MODIFY_PHONE_STATE,
-                () -> {
-                    mCarrierConfigManager.overrideConfig(mSubId, mRequestedConfig);
-                    mCarrierConfigManager.notifyConfigChangedForSubId(mSubId);
-                });
-
-        waitForCarrierConfigChanged();
-        return mReceivedConfigs;
-    }
-}