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/*
* Copyright (C) 2012 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.loganalysis.parser;
import com.android.loganalysis.item.JavaCrashItem;
import com.android.loganalysis.util.ArrayUtil;
import junit.framework.TestCase;
import java.util.Arrays;
import java.util.List;
/**
* Unit tests for {@link JavaCrashParser}.
*/
public class JavaCrashParserTest extends TestCase {
/**
* Test that Java crashes are parsed with no message.
*/
public void testParse_no_message() {
List<String> lines = Arrays.asList(
"java.lang.Exception",
"\tat class.method1(Class.java:1)",
"\tat class.method2(Class.java:2)",
"\tat class.method3(Class.java:3)");
JavaCrashItem jc = new JavaCrashParser().parse(lines);
assertNotNull(jc);
assertEquals("java.lang.Exception", jc.getException());
assertNull(jc.getMessage());
assertEquals(ArrayUtil.join("\n", lines), jc.getStack());
}
/**
* Test that Java crashes are parsed with a message.
*/
public void testParse_message() {
List<String> lines = Arrays.asList(
"java.lang.Exception: This is the message",
"\tat class.method1(Class.java:1)",
"\tat class.method2(Class.java:2)",
"\tat class.method3(Class.java:3)");
JavaCrashItem jc = new JavaCrashParser().parse(lines);
assertNotNull(jc);
assertEquals("java.lang.Exception", jc.getException());
assertEquals("This is the message", jc.getMessage());
assertEquals(ArrayUtil.join("\n", lines), jc.getStack());
}
/**
* Test that Java crashes are parsed if the message spans multiple lines.
*/
public void testParse_multiline_message() {
List<String> lines = Arrays.asList(
"java.lang.Exception: This message",
"is many lines",
"long.",
"\tat class.method1(Class.java:1)",
"\tat class.method2(Class.java:2)",
"\tat class.method3(Class.java:3)");
JavaCrashItem jc = new JavaCrashParser().parse(lines);
assertNotNull(jc);
assertEquals("java.lang.Exception", jc.getException());
assertEquals("This message\nis many lines\nlong.", jc.getMessage());
assertEquals(ArrayUtil.join("\n", lines), jc.getStack());
}
/**
* Test that caused by sections of Java crashes are parsed, with no message or single or
* multiline messages.
*/
public void testParse_caused_by() {
List<String> lines = Arrays.asList(
"java.lang.Exception: This is the message",
"\tat class.method1(Class.java:1)",
"\tat class.method2(Class.java:2)",
"\tat class.method3(Class.java:3)",
"Caused by: java.lang.Exception",
"\tat class.method4(Class.java:4)",
"Caused by: java.lang.Exception: This is the caused by message",
"\tat class.method5(Class.java:5)",
"Caused by: java.lang.Exception: This is a multiline",
"caused by message",
"\tat class.method6(Class.java:6)");
JavaCrashItem jc = new JavaCrashParser().parse(lines);
assertNotNull(jc);
assertEquals("java.lang.Exception", jc.getException());
assertEquals("This is the message", jc.getMessage());
assertEquals(ArrayUtil.join("\n", lines), jc.getStack());
}
/**
* Test that the Java crash is cutoff if an unexpected line is handled.
*/
public void testParse_cutoff() {
List<String> lines = Arrays.asList(
"java.lang.Exception: This is the message",
"\tat class.method1(Class.java:1)",
"\tat class.method2(Class.java:2)",
"\tat class.method3(Class.java:3)",
"Invalid line",
"java.lang.Exception: This is the message");
JavaCrashItem jc = new JavaCrashParser().parse(lines);
assertNotNull(jc);
assertEquals("java.lang.Exception", jc.getException());
assertEquals("This is the message", jc.getMessage());
assertEquals(ArrayUtil.join("\n", lines.subList(0, lines.size()-2)), jc.getStack());
}
/**
* Tests that only parts between the markers are parsed.
*/
public void testParse_begin_end_markers() {
List<String> lines = Arrays.asList(
"error: this message has begin and end",
"----- begin exception -----",
"java.lang.Exception: This message",
"is many lines",
"long.",
"\tat class.method1(Class.java:1)",
"\tat class.method2(Class.java:2)",
"\tat class.method3(Class.java:3)",
"----- end exception -----");
JavaCrashItem jc = new JavaCrashParser().parse(lines);
assertNotNull(jc);
assertEquals("java.lang.Exception", jc.getException());
assertEquals("This message\nis many lines\nlong.", jc.getMessage());
assertNotNull(jc.getStack());
assertFalse(jc.getStack().contains("begin exception"));
assertFalse(jc.getStack().contains("end exception"));
}
}
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