| /* |
| * 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.sts.common; |
| |
| import static com.google.common.truth.Truth.assertWithMessage; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import com.android.tradefed.testtype.DeviceJUnit4ClassRunner; |
| import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** Unit tests for {@link MallocDebug}. */ |
| @RunWith(DeviceJUnit4ClassRunner.class) |
| public class MallocDebugTest extends BaseHostJUnit4Test { |
| private static String logcatWithErrors = null; |
| private static String logcatWithoutErrors = null; |
| |
| @BeforeClass |
| public static void setUpClass() throws IOException { |
| try (InputStream is1 = |
| MallocDebugTest.class |
| .getClassLoader() |
| .getResourceAsStream("malloc_debug_logcat.txt"); |
| InputStream is2 = |
| MallocDebugTest.class.getClassLoader().getResourceAsStream("logcat.txt")) { |
| logcatWithErrors = new String(is1.readAllBytes()); |
| logcatWithoutErrors = new String(is2.readAllBytes()); |
| } |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| assertWithMessage("libc.debug.malloc.options not empty before test") |
| .that(getDevice().getProperty("libc.debug.malloc.options")) |
| .isNull(); |
| assertWithMessage("libc.debug.malloc.programs not empty before test") |
| .that(getDevice().getProperty("libc.debug.malloc.programs")) |
| .isNull(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| assertWithMessage("libc.debug.malloc.options not empty after test") |
| .that(getDevice().getProperty("libc.debug.malloc.options")) |
| .isNull(); |
| assertWithMessage("libc.debug.malloc.programs not empty after test") |
| .that(getDevice().getProperty("libc.debug.malloc.programs")) |
| .isNull(); |
| } |
| |
| @Test(expected = Test.None.class /* no exception expected */) |
| public void testMallocDebugNoErrors() throws Exception { |
| MallocDebug.assertNoMallocDebugErrors(logcatWithoutErrors); |
| } |
| |
| @Test(expected = AssertionError.class) |
| public void testMallocDebugWithErrors() throws Exception { |
| MallocDebug.assertNoMallocDebugErrors(logcatWithErrors); |
| } |
| |
| @Test(expected = IllegalStateException.class) |
| public void testMallocDebugAutocloseableNonRoot() throws Exception { |
| assertTrue(getDevice().disableAdbRoot()); |
| try (AutoCloseable mallocDebug = |
| MallocDebug.withLibcMallocDebugOnNewProcess( |
| getDevice(), "backtrace guard", "native-poc")) { |
| // empty |
| } |
| } |
| |
| @Test |
| public void testMallocDebugAutocloseableRoot() throws Exception { |
| assertTrue("must test with rootable device", getDevice().enableAdbRoot()); |
| try (AutoCloseable mallocDebug = |
| MallocDebug.withLibcMallocDebugOnNewProcess( |
| getDevice(), "backtrace guard", "native-poc")) { |
| // empty |
| } |
| } |
| |
| @Test |
| public void testMallocDebugAutocloseableNonRootCleanup() throws Exception { |
| assertTrue("must test with rootable device", getDevice().enableAdbRoot()); |
| try (AutoCloseable mallocDebug = |
| MallocDebug.withLibcMallocDebugOnNewProcess( |
| getDevice(), "backtrace guard", "native-poc")) { |
| assertTrue("could not disable root", getDevice().disableAdbRoot()); |
| } |
| assertFalse( |
| "device should not be root after autoclose if the body unrooted", |
| getDevice().isAdbRoot()); |
| } |
| |
| @Test |
| public void testMallocDebugAutoseablePriorValueNoException() throws Exception { |
| assertTrue("must test with rootable device", getDevice().enableAdbRoot()); |
| final String oldValue = "TEST_VALUE_OLD"; |
| final String newValue = "TEST_VALUE_NEW"; |
| assertTrue( |
| "could not set libc.debug.malloc.options", |
| getDevice().setProperty("libc.debug.malloc.options", oldValue)); |
| assertWithMessage("test property was not properly set on device") |
| .that(getDevice().getProperty("libc.debug.malloc.options")) |
| .isEqualTo(oldValue); |
| try (AutoCloseable mallocDebug = |
| MallocDebug.withLibcMallocDebugOnNewProcess(getDevice(), newValue, "native-poc")) { |
| assertWithMessage("new property was not set during malloc debug body") |
| .that(getDevice().getProperty("libc.debug.malloc.options")) |
| .isEqualTo(newValue); |
| } |
| String afterValue = getDevice().getProperty("libc.debug.malloc.options"); |
| assertTrue( |
| "could not clear libc.debug.malloc.options", |
| getDevice().setProperty("libc.debug.malloc.options", "")); |
| assertWithMessage("prior property was not restored after test") |
| .that(afterValue) |
| .isEqualTo(oldValue); |
| } |
| } |