Add LockSettingsStorage tests (e542499a) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/LockSettingsStorage.java

+19 −2

Original line number	Diff line number	Diff line
		@@ -16,6 +16,8 @@

		package com.android.server;

		import com.android.internal.annotations.VisibleForTesting;

		import android.content.ContentValues;
		import android.content.Context;
		import android.content.pm.UserInfo;
		@@ -243,11 +245,13 @@ class LockSettingsStorage {
		}


		private String getLockPatternFilename(int userId) {
		@VisibleForTesting
		String getLockPatternFilename(int userId) {
		return getLockCredentialFilePathForUser(userId, LOCK_PATTERN_FILE);
		}

		private String getLockPasswordFilename(int userId) {
		@VisibleForTesting
		String getLockPasswordFilename(int userId) {
		return getLockCredentialFilePathForUser(userId, LOCK_PASSWORD_FILE);
		}

		@@ -310,6 +314,15 @@ class LockSettingsStorage {
		}
		}

		@VisibleForTesting
		void closeDatabase() {
		mOpenHelper.close();
		}

		@VisibleForTesting
		void clearCache() {
		mCache.clear();
		}

		public interface Callback {
		void initialize(SQLiteDatabase db);
		@@ -455,6 +468,10 @@ class LockSettingsStorage {
		mVersion++;
		}

		synchronized void clear() {
		mCache.clear();
		mVersion++;
		}

		private static final class CacheKey {
		static final int TYPE_KEY_VALUE = 0;

services/tests/servicestests/src/com/android/server/LockSettingsStorageTests.java

0 → 100644

+330 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2014 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.server;

		import android.content.Context;
		import android.content.ContextWrapper;
		import android.content.pm.UserInfo;
		import android.database.sqlite.SQLiteDatabase;
		import android.os.FileUtils;
		import android.os.UserManager;
		import android.test.AndroidTestCase;

		import java.io.File;
		import java.util.ArrayList;
		import java.util.Arrays;
		import java.util.List;
		import java.util.concurrent.CountDownLatch;

		public class LockSettingsStorageTests extends AndroidTestCase {
		LockSettingsStorage mStorage;
		File mStorageDir;

		private File mDb;

		@Override
		protected void setUp() throws Exception {
		super.setUp();
		mStorageDir = new File(getContext().getFilesDir(), "locksettings");
		mDb = getContext().getDatabasePath("locksettings.db");

		assertTrue(mStorageDir.exists() \|\| mStorageDir.mkdirs());
		assertTrue(FileUtils.deleteContents(mStorageDir));
		assertTrue(!mDb.exists() \|\| mDb.delete());

		final Context ctx = getContext();
		setContext(new ContextWrapper(ctx) {
		@Override
		public Object getSystemService(String name) {
		if (USER_SERVICE.equals(name)) {
		return new UserManager(ctx, null) {
		@Override
		public UserInfo getProfileParent(int userHandle) {
		if (userHandle == 2) {
		// User 2 is a profile of user 1.
		return new UserInfo(1, "name", 0);
		}
		if (userHandle == 3) {
		// User 3 is a profile of user 0.
		return new UserInfo(0, "name", 0);
		}
		return null;
		}
		};
		}
		return super.getSystemService(name);
		}
		});

		mStorage = new LockSettingsStorage(getContext(), new LockSettingsStorage.Callback() {
		@Override
		public void initialize(SQLiteDatabase db) {
		mStorage.writeKeyValue(db, "initializedKey", "initialValue", 0);
		}
		}) {
		@Override
		String getLockPatternFilename(int userId) {
		return new File(mStorageDir,
		super.getLockPatternFilename(userId).replace('/', '-')).getAbsolutePath();
		}

		@Override
		String getLockPasswordFilename(int userId) {
		return new File(mStorageDir,
		super.getLockPasswordFilename(userId).replace('/', '-')).getAbsolutePath();
		}
		};
		}

		@Override
		protected void tearDown() throws Exception {
		super.tearDown();
		mStorage.closeDatabase();
		}

		public void testKeyValue_InitializeWorked() {
		assertEquals("initialValue", mStorage.readKeyValue("initializedKey", "default", 0));
		mStorage.clearCache();
		assertEquals("initialValue", mStorage.readKeyValue("initializedKey", "default", 0));
		}

		public void testKeyValue_WriteThenRead() {
		mStorage.writeKeyValue("key", "value", 0);
		assertEquals("value", mStorage.readKeyValue("key", "default", 0));
		mStorage.clearCache();
		assertEquals("value", mStorage.readKeyValue("key", "default", 0));
		}

		public void testKeyValue_DefaultValue() {
		assertEquals("default", mStorage.readKeyValue("unititialized key", "default", 0));
		assertEquals("default2", mStorage.readKeyValue("unititialized key", "default2", 0));
		}

		public void testKeyValue_Concurrency() {
		final Object monitor = new Object();
		List<Thread> threads = new ArrayList<>();
		for (int i = 0; i < 100; i++) {
		final int threadId = i;
		threads.add(new Thread() {
		@Override
		public void run() {
		synchronized (monitor) {
		try {
		monitor.wait();
		} catch (InterruptedException e) {
		return;
		}
		mStorage.writeKeyValue("key", "1 from thread " + threadId, 0);
		mStorage.readKeyValue("key", "default", 0);
		mStorage.writeKeyValue("key", "2 from thread " + threadId, 0);
		mStorage.readKeyValue("key", "default", 0);
		mStorage.writeKeyValue("key", "3 from thread " + threadId, 0);
		mStorage.readKeyValue("key", "default", 0);
		mStorage.writeKeyValue("key", "4 from thread " + threadId, 0);
		mStorage.readKeyValue("key", "default", 0);
		mStorage.writeKeyValue("key", "5 from thread " + threadId, 0);
		mStorage.readKeyValue("key", "default", 0);
		}
		}
		});
		threads.get(i).start();
		}
		mStorage.writeKeyValue("key", "initalValue", 0);
		synchronized (monitor) {
		monitor.notifyAll();
		}
		for (int i = 0; i < threads.size(); i++) {
		try {
		threads.get(i).join();
		} catch (InterruptedException e) {
		}
		}
		assertEquals('5', mStorage.readKeyValue("key", "default", 0).charAt(0));
		mStorage.clearCache();
		assertEquals('5', mStorage.readKeyValue("key", "default", 0).charAt(0));
		}

		public void testKeyValue_CacheStarvedWriter() {
		final CountDownLatch latch = new CountDownLatch(1);
		List<Thread> threads = new ArrayList<>();
		for (int i = 0; i < 100; i++) {
		final int threadId = i;
		threads.add(new Thread() {
		@Override
		public void run() {
		try {
		latch.await();
		} catch (InterruptedException e) {
		return;
		}
		if (threadId == 50) {
		mStorage.writeKeyValue("starvedWriterKey", "value", 0);
		} else {
		mStorage.readKeyValue("starvedWriterKey", "default", 0);
		}
		}
		});
		threads.get(i).start();
		}
		latch.countDown();
		for (int i = 0; i < threads.size(); i++) {
		try {
		threads.get(i).join();
		} catch (InterruptedException e) {
		}
		}
		String cached = mStorage.readKeyValue("key", "default", 0);
		mStorage.clearCache();
		String storage = mStorage.readKeyValue("key", "default", 0);
		assertEquals("Cached value didn't match stored value", storage, cached);
		}

		public void testRemoveUser() {
		mStorage.writeKeyValue("key", "value", 0);
		mStorage.writePasswordHash(new byte[]{1}, 0);
		mStorage.writePatternHash(new byte[]{2}, 0);

		mStorage.writeKeyValue("key", "value", 1);
		mStorage.writePasswordHash(new byte[]{1}, 1);
		mStorage.writePatternHash(new byte[]{2}, 1);

		mStorage.removeUser(0);

		assertEquals("value", mStorage.readKeyValue("key", "default", 1));
		assertEquals("default", mStorage.readKeyValue("key", "default", 0));
		assertNotNull(mStorage.readPasswordHash(1));
		assertNull(mStorage.readPasswordHash(0));
		assertNotNull(mStorage.readPatternHash(1));
		assertNull(mStorage.readPatternHash(0));
		}

		public void testPassword_Default() {
		assertNull(mStorage.readPasswordHash(0));
		}

		public void testPassword_Write() {
		mStorage.writePasswordHash("thepassword".getBytes(), 0);

		assertArrayEquals("thepassword".getBytes(), mStorage.readPasswordHash(0));
		mStorage.clearCache();
		assertArrayEquals("thepassword".getBytes(), mStorage.readPasswordHash(0));
		}

		public void testPassword_WriteProfileWritesParent() {
		mStorage.writePasswordHash("parentpasswordd".getBytes(), 1);
		mStorage.writePasswordHash("profilepassword".getBytes(), 2);

		assertArrayEquals("profilepassword".getBytes(), mStorage.readPasswordHash(1));
		assertArrayEquals("profilepassword".getBytes(), mStorage.readPasswordHash(2));
		mStorage.clearCache();
		assertArrayEquals("profilepassword".getBytes(), mStorage.readPasswordHash(1));
		assertArrayEquals("profilepassword".getBytes(), mStorage.readPasswordHash(2));
		}

		public void testPassword_WriteParentWritesProfile() {
		mStorage.writePasswordHash("profilepassword".getBytes(), 2);
		mStorage.writePasswordHash("parentpasswordd".getBytes(), 1);

		assertArrayEquals("parentpasswordd".getBytes(), mStorage.readPasswordHash(1));
		assertArrayEquals("parentpasswordd".getBytes(), mStorage.readPasswordHash(2));
		mStorage.clearCache();
		assertArrayEquals("parentpasswordd".getBytes(), mStorage.readPasswordHash(1));
		assertArrayEquals("parentpasswordd".getBytes(), mStorage.readPasswordHash(2));
		}

		public void testPattern_Default() {
		assertNull(mStorage.readPasswordHash(0));
		}

		public void testPattern_Write() {
		mStorage.writePatternHash("thepattern".getBytes(), 0);

		assertArrayEquals("thepattern".getBytes(), mStorage.readPatternHash(0));
		mStorage.clearCache();
		assertArrayEquals("thepattern".getBytes(), mStorage.readPatternHash(0));
		}

		public void testPattern_WriteProfileWritesParent() {
		mStorage.writePatternHash("parentpatternn".getBytes(), 1);
		mStorage.writePatternHash("profilepattern".getBytes(), 2);

		assertArrayEquals("profilepattern".getBytes(), mStorage.readPatternHash(1));
		assertArrayEquals("profilepattern".getBytes(), mStorage.readPatternHash(2));
		mStorage.clearCache();
		assertArrayEquals("profilepattern".getBytes(), mStorage.readPatternHash(1));
		assertArrayEquals("profilepattern".getBytes(), mStorage.readPatternHash(2));
		}

		public void testPattern_WriteParentWritesProfile() {
		mStorage.writePatternHash("profilepattern".getBytes(), 2);
		mStorage.writePatternHash("parentpatternn".getBytes(), 1);

		assertArrayEquals("parentpatternn".getBytes(), mStorage.readPatternHash(1));
		assertArrayEquals("parentpatternn".getBytes(), mStorage.readPatternHash(2));
		mStorage.clearCache();
		assertArrayEquals("parentpatternn".getBytes(), mStorage.readPatternHash(1));
		assertArrayEquals("parentpatternn".getBytes(), mStorage.readPatternHash(2));
		}

		public void testPrefetch() {
		mStorage.writeKeyValue("key", "toBeFetched", 0);
		mStorage.writePatternHash("pattern".getBytes(), 0);
		mStorage.writePasswordHash("password".getBytes(), 0);

		mStorage.clearCache();
		mStorage.prefetchUser(0);

		assertEquals("toBeFetched", mStorage.readKeyValue("key", "default", 0));
		assertArrayEquals("pattern".getBytes(), mStorage.readPatternHash(0));
		assertArrayEquals("password".getBytes(), mStorage.readPasswordHash(0));
		}

		public void testFileLocation_Owner() {
		LockSettingsStorage storage = new LockSettingsStorage(getContext(), null);

		assertEquals("/data/system/gesture.key", storage.getLockPatternFilename(0));
		assertEquals("/data/system/password.key", storage.getLockPasswordFilename(0));
		}

		public void testFileLocation_SecondaryUser() {
		LockSettingsStorage storage = new LockSettingsStorage(getContext(), null);

		assertEquals("/data/system/users/1/gesture.key", storage.getLockPatternFilename(1));
		assertEquals("/data/system/users/1/password.key", storage.getLockPasswordFilename(1));
		}

		public void testFileLocation_ProfileToSecondary() {
		LockSettingsStorage storage = new LockSettingsStorage(getContext(), null);

		assertEquals("/data/system/users/1/gesture.key", storage.getLockPatternFilename(2));
		assertEquals("/data/system/users/1/password.key", storage.getLockPasswordFilename(2));
		}

		public void testFileLocation_ProfileToOwner() {
		LockSettingsStorage storage = new LockSettingsStorage(getContext(), null);

		assertEquals("/data/system/gesture.key", storage.getLockPatternFilename(3));
		assertEquals("/data/system/password.key", storage.getLockPasswordFilename(3));
		}

		private static void assertArrayEquals(byte[] expected, byte[] actual) {
		if (!Arrays.equals(expected, actual)) {
		fail("expected:<" + Arrays.toString(expected) +
		"> but was:<" + Arrays.toString(actual) + ">");
		}
		}
		}