Add some tests for TarBackupReader
... and PerformAdbRestoreTask.
Involves some refactoring, splitting readAppManifest() into two methods.
Also a bit of cleanup: make private field actually private and use
static imports for some constants.
Bug: 38090803
Bug: 37619463
Test: runtest -p com.android.server.backup frameworks-services
Change-Id: Ic30a6c5a515da1efb67caaae6eb75f4313797d5c
diff --git a/services/tests/servicestests/src/com/android/server/backup/utils/TarBackupReaderTest.java b/services/tests/servicestests/src/com/android/server/backup/utils/TarBackupReaderTest.java
new file mode 100644
index 0000000..63578b0
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/backup/utils/TarBackupReaderTest.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2017 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.backup.utils;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.app.backup.IBackupManagerMonitor;
+import android.content.Context;
+import android.content.pm.Signature;
+import android.platform.test.annotations.Presubmit;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+
+import com.android.frameworks.servicestests.R;
+import com.android.server.backup.FileMetadata;
+import com.android.server.backup.restore.PerformAdbRestoreTask;
+
+import com.google.common.hash.Hashing;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import java.io.InputStream;
+
+@SmallTest
+@Presubmit
+@RunWith(AndroidJUnit4.class)
+public class TarBackupReaderTest {
+ private static final String TELEPHONY_PACKAGE_NAME = "com.android.providers.telephony";
+ private static final String TELEPHONY_PACKAGE_SIGNATURE_SHA256 =
+ "301aa3cb081134501c45f1422abc66c24224fd5ded5fdc8f17e697176fd866aa";
+ private static final int TELEPHONY_PACKAGE_VERSION = 25;
+
+ @Mock
+ private BytesReadListener mBytesReadListenerMock;
+ @Mock
+ private IBackupManagerMonitor mBackupManagerMonitorMock;
+ private Context mContext;
+
+ @Before
+ public void setUp() throws Exception {
+ MockitoAnnotations.initMocks(this);
+
+ mContext = InstrumentationRegistry.getContext();
+ }
+
+ @Test
+ public void readTarHeaders_backupEncrypted_correctlyParsesFileMetadata() throws Exception {
+ InputStream inputStream = mContext.getResources().openRawResource(
+ R.raw.backup_telephony_with_password);
+ InputStream tarInputStream = PerformAdbRestoreTask.parseBackupFileHeaderAndReturnTarStream(
+ inputStream, "123");
+ TarBackupReader tarBackupReader = new TarBackupReader(tarInputStream,
+ mBytesReadListenerMock, mBackupManagerMonitorMock);
+ FileMetadata fileMetadata = tarBackupReader.readTarHeaders();
+
+ assertThat(fileMetadata.packageName).isEqualTo(TELEPHONY_PACKAGE_NAME);
+ assertThat(fileMetadata.mode).isEqualTo(0600);
+ assertThat(fileMetadata.size).isEqualTo(2438);
+ assertThat(fileMetadata.domain).isEqualTo(null);
+ assertThat(fileMetadata.path).isEqualTo("_manifest");
+ }
+
+ @Test
+ public void readTarHeaders_backupNotEncrypted_correctlyParsesFileMetadata() throws Exception {
+ InputStream inputStream = mContext.getResources().openRawResource(
+ R.raw.backup_telephony_no_password);
+ InputStream tarInputStream = PerformAdbRestoreTask.parseBackupFileHeaderAndReturnTarStream(
+ inputStream, null);
+ TarBackupReader tarBackupReader = new TarBackupReader(tarInputStream,
+ mBytesReadListenerMock, mBackupManagerMonitorMock);
+ FileMetadata fileMetadata = tarBackupReader.readTarHeaders();
+
+ assertThat(fileMetadata.packageName).isEqualTo(TELEPHONY_PACKAGE_NAME);
+ assertThat(fileMetadata.mode).isEqualTo(0600);
+ assertThat(fileMetadata.size).isEqualTo(2438);
+ assertThat(fileMetadata.domain).isEqualTo(null);
+ assertThat(fileMetadata.path).isEqualTo("_manifest");
+ }
+
+ @Test
+ public void readAppManifest_backupEncrypted_correctlyParsesAppManifest() throws Exception {
+ InputStream inputStream = mContext.getResources().openRawResource(
+ R.raw.backup_telephony_with_password);
+ InputStream tarInputStream = PerformAdbRestoreTask.parseBackupFileHeaderAndReturnTarStream(
+ inputStream, "123");
+ TarBackupReader tarBackupReader = new TarBackupReader(tarInputStream,
+ mBytesReadListenerMock, mBackupManagerMonitorMock);
+ FileMetadata fileMetadata = tarBackupReader.readTarHeaders();
+
+ Signature[] signatures = tarBackupReader.readAppManifestAndReturnSignatures(fileMetadata);
+
+ assertThat(fileMetadata.version).isEqualTo(TELEPHONY_PACKAGE_VERSION);
+ assertThat(fileMetadata.hasApk).isFalse();
+ assertThat(signatures).isNotNull();
+ assertThat(signatures).hasLength(1);
+
+ String signatureSha256 = Hashing.sha256().hashBytes(signatures[0].toByteArray()).toString();
+ assertThat(signatureSha256).isEqualTo(TELEPHONY_PACKAGE_SIGNATURE_SHA256);
+ }
+
+ @Test
+ public void readAppManifest_backupNotEncrypted_correctlyParsesAppManifest() throws Exception {
+ InputStream inputStream = mContext.getResources().openRawResource(
+ R.raw.backup_telephony_no_password);
+ InputStream tarInputStream = PerformAdbRestoreTask.parseBackupFileHeaderAndReturnTarStream(
+ inputStream, null);
+ TarBackupReader tarBackupReader = new TarBackupReader(tarInputStream,
+ mBytesReadListenerMock, mBackupManagerMonitorMock);
+ FileMetadata fileMetadata = tarBackupReader.readTarHeaders();
+
+ Signature[] signatures = tarBackupReader.readAppManifestAndReturnSignatures(fileMetadata);
+
+ assertThat(fileMetadata.version).isEqualTo(TELEPHONY_PACKAGE_VERSION);
+ assertThat(fileMetadata.hasApk).isFalse();
+ assertThat(signatures).isNotNull();
+ assertThat(signatures).hasLength(1);
+
+ String signatureSha256 = Hashing.sha256().hashBytes(signatures[0].toByteArray()).toString();
+ assertThat(signatureSha256).isEqualTo(TELEPHONY_PACKAGE_SIGNATURE_SHA256);
+ }
+}
\ No newline at end of file