/*
* Copyright 2000-2016 JetBrains s.r.o.
*
* 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.intellij.rt.execution.junit;
import junit.framework.ComparisonFailure;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;
public class ComparisonFailureData {
private static final String ASSERTION_CLASS_NAME = "java.lang.AssertionError";
private static final String ASSERTION_FAILED_CLASS_NAME = "junit.framework.AssertionFailedError";
private final String myExpected;
private final String myActual;
private final String myFilePath;
private final String myActualFilePath;
private static Map EXPECTED = new HashMap();
private static Map ACTUAL = new HashMap();
static {
try {
init(ComparisonFailure.class);
init(org.junit.ComparisonFailure.class);
}
catch (Throwable e) {
}
}
private static void init(Class exceptionClass) throws NoSuchFieldException {
final Field expectedField = exceptionClass.getDeclaredField("fExpected");
expectedField.setAccessible(true);
EXPECTED.put(exceptionClass, expectedField);
final Field actualField = exceptionClass.getDeclaredField("fActual");
actualField.setAccessible(true);
ACTUAL.put(exceptionClass, actualField);
}
public ComparisonFailureData(String expected, String actual) {
this(expected, actual, null);
}
public ComparisonFailureData(String expected, String actual, String filePath) {
this(expected, actual, filePath, null);
}
public ComparisonFailureData(String expected, String actual, String filePath, String actualFilePath) {
myExpected = expected;
myActual = actual;
myFilePath = filePath != null ? new File(filePath).getAbsolutePath() : null;
myActualFilePath = actualFilePath != null ? new File(actualFilePath).getAbsolutePath() : null;
}
public static void registerSMAttributes(ComparisonFailureData notification,
String trace,
String failureMessage,
Map attrs,
Throwable throwable) {
registerSMAttributes(notification, trace, failureMessage, attrs, throwable, "Comparison Failure: ", "expected:<");
}
public static void registerSMAttributes(ComparisonFailureData notification, String trace,
String failureMessage,
Map attrs,
Throwable throwable,
String comparisonFailurePrefix,
final String expectedPrefix) {
final int failureIdx = failureMessage != null ? trace.indexOf(failureMessage) : -1;
final int failureMessageLength = failureMessage != null ? failureMessage.length() : 0;
String details = failureIdx > -1 ? trace.substring(failureIdx + failureMessageLength) : trace;
attrs.put("details", details);
if (notification != null) {
final int expectedIdx = trace.indexOf(expectedPrefix);
final String comparisonFailureMessage;
if (expectedIdx > 0) {
comparisonFailureMessage = trace.substring(0, expectedIdx);
}
else if (failureIdx > -1) {
comparisonFailureMessage = trace.substring(0, failureIdx + failureMessageLength);
}
else {
comparisonFailureMessage = (failureMessageLength > 0 ? failureMessage + "\n" : "") + comparisonFailurePrefix;
}
attrs.put("message", comparisonFailureMessage);
final String filePath = notification.getFilePath();
final String actualFilePath = notification.getActualFilePath();
final String expected = notification.getExpected();
final String actual = notification.getActual();
int fullLength = (filePath == null && expected != null ? expected.length() : 0) +
(actualFilePath == null && actual != null ? actual.length() : 0) +
details.length() +
comparisonFailureMessage.length() + 100;
if (filePath != null) {
attrs.put("expectedFile", filePath);
}
else {
writeDiffSide(attrs, "expected", expected, fullLength);
}
if (actualFilePath != null) {
attrs.put("actualFile", actualFilePath);
}
else {
writeDiffSide(attrs, "actual", actual, fullLength);
}
}
else {
Throwable throwableCause = null;
try {
throwableCause = throwable.getCause();
}
catch (Throwable ignored) {}
if (!isAssertionError(throwable.getClass()) && !isAssertionError(throwableCause != null ? throwableCause.getClass() : null)) {
attrs.put("error", "true");
}
attrs.put("message", failureIdx > -1 ? trace.substring(0, failureIdx + failureMessageLength)
: failureMessage != null ? failureMessage : "");
}
}
private static void writeDiffSide(Map attrs, final String expectedOrActualPrefix, final String text, int fullLength) {
String property = System.getProperty("idea.test.cyclic.buffer.size");
int threshold;
try {
threshold = Integer.parseInt(property);
}
catch (NumberFormatException ignored) {
threshold = -1;
}
if (threshold > 0 && fullLength > threshold) {
try {
//noinspection SSBasedInspection
File tempFile = File.createTempFile(expectedOrActualPrefix, "");
OutputStream stream = new FileOutputStream(tempFile);
try {
stream.write(text.getBytes("UTF-8"), 0, text.length());
}
finally {
stream.close();
}
attrs.put(expectedOrActualPrefix + "File", tempFile.getAbsolutePath());
attrs.put(expectedOrActualPrefix + "IsTempFile", "true");
return;
}
catch (Throwable ignored) {}
}
attrs.put(expectedOrActualPrefix, text);
}
public static boolean isAssertionError(Class throwableClass) {
if (throwableClass == null) return false;
final String throwableClassName = throwableClass.getName();
if (throwableClassName.equals(ASSERTION_CLASS_NAME) || throwableClassName.equals(ASSERTION_FAILED_CLASS_NAME)) return true;
return isAssertionError(throwableClass.getSuperclass());
}
public String getFilePath() {
return myFilePath;
}
public String getActualFilePath() {
return myActualFilePath;
}
public String getExpected() {
return myExpected;
}
public String getActual() {
return myActual;
}
public static ComparisonFailureData create(Throwable assertion) {
if (assertion instanceof FileComparisonFailure) {
final FileComparisonFailure comparisonFailure = (FileComparisonFailure)assertion;
return new ComparisonFailureData(comparisonFailure.getExpected(), comparisonFailure.getActual(),
comparisonFailure.getFilePath(), comparisonFailure.getActualFilePath());
}
try {
return new ComparisonFailureData(getExpected(assertion), getActual(assertion));
}
catch (Throwable e) {
return null;
}
}
public static String getActual(Throwable assertion) throws IllegalAccessException, NoSuchFieldException {
return get(assertion, ACTUAL, "fActual");
}
public static String getExpected(Throwable assertion) throws IllegalAccessException, NoSuchFieldException {
return get(assertion, EXPECTED, "fExpected");
}
private static String get(final Throwable assertion, final Map staticMap, final String fieldName) throws IllegalAccessException, NoSuchFieldException {
String actual;
if (assertion instanceof ComparisonFailure) {
actual = (String)((Field)staticMap.get(ComparisonFailure.class)).get(assertion);
}
else if (assertion instanceof org.junit.ComparisonFailure) {
actual = (String)((Field)staticMap.get(org.junit.ComparisonFailure.class)).get(assertion);
}
else {
Field field = assertion.getClass().getDeclaredField(fieldName);
field.setAccessible(true);
actual = (String)field.get(assertion);
}
return actual;
}
}