Add LockSettingsStorage tests
Bug: 18163444
Change-Id: I563276e6d445d43d05bf0d3c633440a8e0109b69
diff --git a/services/tests/servicestests/src/com/android/server/LockSettingsStorageTests.java b/services/tests/servicestests/src/com/android/server/LockSettingsStorageTests.java
new file mode 100644
index 0000000..bf0e75d
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/LockSettingsStorageTests.java
@@ -0,0 +1,330 @@
+/*
+ * 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) + ">");
+ }
+ }
+}