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/*
* Copyright (C) 2019 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.compatibility.common.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.util.regex.Pattern;
/** Unit tests for {@link CrashUtils}. */
@RunWith(JUnit4.class)
public class CrashUtilsTest {
private JSONArray mCrashes;
@Before
public void setUp() throws IOException {
try (BufferedReader txtReader =
new BufferedReader(
new InputStreamReader(
getClass().getClassLoader().getResourceAsStream("logcat.txt")))) {
StringBuffer input = new StringBuffer();
String tmp;
while ((tmp = txtReader.readLine()) != null) {
input.append(tmp + "\n");
}
mCrashes = CrashUtils.addAllCrashes(input.toString(), new JSONArray());
}
}
@Test
public void testGetAllCrashes() throws Exception {
JSONArray expectedResults = new JSONArray();
expectedResults.put(createCrashJson(
11071, 11189, "AudioOut_D", "/system/bin/audioserver", "e9380000", "SIGSEGV"));
expectedResults.put(createCrashJson(
12736, 12761, "Binder:12736_2", "/system/bin/audioserver", "0", "SIGSEGV"));
expectedResults.put(createCrashJson(
26201, 26227, "Binder:26201_3", "/system/bin/audioserver", "0", "SIGSEGV"));
expectedResults.put(createCrashJson(
26246, 26282, "Binder:26246_5", "/system/bin/audioserver", "0", "SIGSEGV"));
expectedResults.put(createCrashJson(
245, 245, "installd", "/system/bin/installd", null, "SIGABRT"));
expectedResults.put(createCrashJson(
6371, 8072, "media.codec", "omx@1.0-service", "ed000000", "SIGSEGV"));
expectedResults.put(createCrashJson(
8373, 8414, "loo", "com.android.bluetooth", null, "SIGABRT"));
expectedResults.put(createCrashJson(
11071, 11189, "synthetic_thread", "synthetic_process_0", "e9380000", "SIGSEGV"));
expectedResults.put(createCrashJson(
12736, 12761, "synthetic_thread", "synthetic_process_1", "0", "SIGSEGV"));
Assert.assertEquals(mCrashes.toString(), expectedResults.toString());
}
public JSONObject createCrashJson(
int pid, int tid, String name, String process, String faultaddress, String signal) {
JSONObject json = new JSONObject();
try {
json.put(CrashUtils.PID, pid);
json.put(CrashUtils.TID, tid);
json.put(CrashUtils.NAME, name);
json.put(CrashUtils.PROCESS, process);
json.put(CrashUtils.FAULT_ADDRESS, faultaddress);
json.put(CrashUtils.SIGNAL, signal);
} catch (JSONException e) {}
return json;
}
@Test
public void testValidCrash() throws Exception {
Assert.assertTrue(CrashUtils.securityCrashDetected(mCrashes, new CrashUtils.Config()
.checkMinAddress(true)
.setProcessPatterns(Pattern.compile("synthetic_process_0"))));
}
@Test
public void testMissingName() throws Exception {
Assert.assertFalse(CrashUtils.securityCrashDetected(mCrashes, new CrashUtils.Config()
.checkMinAddress(true)
.setProcessPatterns(Pattern.compile(""))));
}
@Test
public void testSIGABRT() throws Exception {
Assert.assertFalse(CrashUtils.securityCrashDetected(mCrashes, new CrashUtils.Config()
.checkMinAddress(true)
.setProcessPatterns(Pattern.compile("installd"))));
}
@Test
public void testFaultAddressBelowMin() throws Exception {
Assert.assertFalse(CrashUtils.securityCrashDetected(mCrashes, new CrashUtils.Config()
.checkMinAddress(true)
.setProcessPatterns(Pattern.compile("synthetic_process_1"))));
}
@Test
public void testIgnoreMinAddressCheck() throws Exception {
Assert.assertTrue(CrashUtils.securityCrashDetected(mCrashes, new CrashUtils.Config()
.checkMinAddress(false)
.setProcessPatterns(Pattern.compile("synthetic_process_1"))));
}
@Test
public void testBadAbortMessage() throws Exception {
Assert.assertFalse(CrashUtils.securityCrashDetected(mCrashes, new CrashUtils.Config()
.checkMinAddress(true)
.setProcessPatterns(Pattern.compile("generic"))));
}
@Test
public void testGoodAndBadCrashes() throws Exception {
Assert.assertTrue(CrashUtils.securityCrashDetected(mCrashes, new CrashUtils.Config()
.checkMinAddress(true)
.setProcessPatterns(
Pattern.compile("synthetic_process_0"),
Pattern.compile("generic"))));
}
@Test
public void testNullFaultAddress() throws Exception {
JSONArray crashes = new JSONArray();
crashes.put(createCrashJson(8373, 8414, "loo", "com.android.bluetooth", null, "SIGSEGV"));
Assert.assertTrue(CrashUtils.securityCrashDetected(crashes, new CrashUtils.Config()
.checkMinAddress(true)
.setProcessPatterns(Pattern.compile("com\\.android\\.bluetooth"))));
}
}
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