com.cedarsoft.test.utils.AssertUtils Maven / Gradle / Ivy
/**
* Copyright (C) cedarsoft GmbH.
*
* Licensed under the GNU General Public License version 3 (the "License")
* with Classpath Exception; you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.cedarsoft.org/gpl3ce
* (GPL 3 with Classpath Exception)
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3 only, as
* published by the Free Software Foundation. cedarsoft GmbH designates this
* particular file as subject to the "Classpath" exception as provided
* by cedarsoft GmbH in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 3 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 3 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact cedarsoft GmbH, 72810 Gomaringen, Germany,
* or visit www.cedarsoft.com if you need additional information or
* have any questions.
*/
package com.cedarsoft.test.utils;
import com.cedarsoft.crypt.Algorithm;
import com.cedarsoft.crypt.Hash;
import com.cedarsoft.crypt.HashCalculator;
import com.cedarsoft.xml.XmlCommons;
import com.google.common.base.Charsets;
import com.google.common.io.ByteStreams;
import java.nio.charset.Charset;
import junit.framework.AssertionFailedError;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.custommonkey.xmlunit.XMLAssert;
import org.custommonkey.xmlunit.XMLUnit;
import org.hamcrest.CoreMatchers;
import org.hamcrest.Matcher;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.junit.*;
import org.xml.sax.SAXException;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
/**
* AssertUtils class.
*
* @author Johannes Schneider ([email protected])
*/
public class AssertUtils {
private AssertUtils() {
}
/**
* setIgnoreWhitespace
*
* @param ignore a boolean.
*/
public static void setIgnoreWhitespace( boolean ignore ) {
XMLUnit.setIgnoreWhitespace( ignore );
}
public static void setIgnoreComments( boolean ignore ) {
XMLUnit.setIgnoreComments(ignore);
}
/**
* assertXMLEqual
*
* @param control a {@link String} object.
* @param test a {@link String} object.
* @throws SAXException if any.
* @throws IOException if any.
*/
public static void assertXMLEquals( String control, String test ) throws SAXException, IOException {
assertXMLEquals(control, test, true);
}
public static void assertXMLEquals( URL control, String test ) throws SAXException, IOException {
assertXMLEquals(control, test, Charsets.UTF_8);
}
public static void assertXMLEquals( URL control, String test, @Nonnull Charset charset ) throws SAXException, IOException {
assertXMLEquals( toString( control, charset), test );
}
/**
* assertXMLEqual
*
* @param control a {@link String} object.
* @param test a {@link String} object.
* @param ignoreWhiteSpace a boolean.
* @throws SAXException if any.
* @throws IOException if any.
*/
public static void assertXMLEquals( String control, String test, boolean ignoreWhiteSpace ) throws SAXException, IOException {
assertXMLEquals( control, test, ignoreWhiteSpace, true );
}
public static void assertXMLEquals( URL control, String test, boolean ignoreWhiteSpace ) throws SAXException, IOException {
assertXMLEquals(control, test, ignoreWhiteSpace, Charsets.UTF_8);
}
public static void assertXMLEquals( URL control, String test, boolean ignoreWhiteSpace, @Nonnull Charset charset ) throws SAXException, IOException {
assertXMLEquals( toString( control, charset), test, ignoreWhiteSpace );
}
/**
* assertXMLEqual
*
* @param err a {@link String} object.
* @param control a {@link String} object.
* @param test a {@link String} object.
* @param ignoreWhiteSpace a boolean.
* @throws SAXException if any.
* @throws IOException if any.
*/
@Deprecated
public static void assertXMLEquals( @Nullable String err, @Nonnull String control, @Nonnull String test, boolean ignoreWhiteSpace ) throws SAXException, IOException {
assertXMLEquals( control, test, ignoreWhiteSpace, true);
}
@Deprecated
public static void assertXMLEquals( @Nullable String err, @Nonnull String control, @Nonnull String test, boolean ignoreWhiteSpace, boolean ignoreComments ) throws SAXException, IOException {
assertXMLEquals(control, test, ignoreWhiteSpace, ignoreComments);
}
public static void assertXMLEquals(@Nonnull String control, @Nonnull String test, boolean ignoreWhiteSpace, boolean ignoreComments) throws IOException {
if (test.trim().isEmpty()) {
throw new ComparisonFailure( "Empty test xml", formatXml( control ).trim(), formatXml( test ).trim() );
}
if (control.trim().isEmpty()) {
throw new ComparisonFailure( "Empty control xml", formatXml( control ).trim(), formatXml( test ).trim() );
}
try {
setIgnoreWhitespace( ignoreWhiteSpace );
setIgnoreComments(ignoreComments);
XMLAssert.assertXMLEqual( control, test );
setIgnoreWhitespace( false );
} catch ( SAXException e ) {
throw new ComparisonFailure( "XML error (" + e.getMessage() + ")", formatXml( control ).trim(), formatXml( test ).trim() );
} catch ( AssertionFailedError ignore ) {
throw new ComparisonFailure( "XML comparison failed", formatXml( control ).trim(), formatXml( test ).trim() );
}
}
@Nonnull
private static String formatXml( @Nonnull String control ) {
try {
return XmlCommons.format( control );
} catch ( Exception ignore ) {
//Do not format if it is not possible...
return control;
}
}
@Deprecated
public static void assertXMLEquals( @Nonnull String test, @Nonnull String err, @Nonnull URL control, boolean ignoreWhiteSpace ) throws SAXException, IOException {
assertXMLEquals(test, err, control, ignoreWhiteSpace, Charsets.UTF_8);
}
@Deprecated
public static void assertXMLEquals( @Nonnull String test, @Nonnull String err, @Nonnull URL control, boolean ignoreWhiteSpace , @Nonnull Charset charset) throws SAXException, IOException {
assertXMLEquals( err, toString( control, charset), test, ignoreWhiteSpace );
}
/**
* assertOne
*
* @param current a {@link Object} object.
* @param expectedAlternatives a {@link Object} object.
*/
public static void assertOne( @Nullable T current, @Nonnull T... expectedAlternatives ) {
Collection> matchers = new ArrayList>();
for ( T expectedAlternative : expectedAlternatives ) {
matchers.add( is( expectedAlternative ) );
}
Matcher objectMatcher = anyOf( matchers );
assertThat( current, objectMatcher );
}
/**
* assertEquals
*
* @param expectedResourceUri a {@link URL} object.
* @param actual a {@link Object} object.
* @throws IOException if any.
*/
public static void assertEquals( @Nonnull URL expectedResourceUri, @Nullable Object actual ) throws IOException {
assertEquals(expectedResourceUri, actual, Charsets.UTF_8);
}
public static void assertEquals( @Nonnull URL expectedResourceUri, @Nullable Object actual,@Nonnull Charset charset ) throws IOException {
Assert.assertEquals( toString( expectedResourceUri, charset), actual );
}
@Nonnull
static String toString(@Nonnull URL expectedResourceUri, @Nonnull Charset charset) throws IOException {
return new String(ByteStreams.toByteArray(expectedResourceUri.openStream()), charset);
}
public static void assertFileByHashes( @Nonnull File fileUnderTest, @Nonnull Algorithm algorithm, @Nonnull String... expectedHashesAsHex ) throws IOException {
Hash[] expectedHashes = new Hash[expectedHashesAsHex.length];
for ( int i = 0, expectedHashesAsHexLength = expectedHashesAsHex.length; i < expectedHashesAsHexLength; i++ ) {
String expectedHashAsHex = expectedHashesAsHex[i];
expectedHashes[i] = Hash.fromHex( algorithm, expectedHashAsHex );
}
assertFileByHashes( fileUnderTest, expectedHashes );
}
public static void assertFileByHashes( @Nonnull File fileUnderTest, @Nonnull Hash... expectedHashes ) throws IOException {
if ( expectedHashes.length == 0 ) {
throw new IllegalArgumentException( "Need at least on hash" );
}
assertFileByHash( guessPathFromStackTrace(), Arrays.asList( expectedHashes ), fileUnderTest );
}
public static void assertFileByHash( @Nonnull Hash expected, @Nonnull File fileUnderTest ) throws IOException {
String path = guessPathFromStackTrace();
assertFileByHash( path, expected, fileUnderTest );
}
public static void assertFileByHash( @Nonnull Class testClass, @Nonnull String testMethodName, @Nonnull Hash expected, @Nonnull File fileUnderTest ) throws IOException {
assertFileByHash( createPath( testClass, testMethodName ), expected, fileUnderTest );
}
@Nonnull
public static String createPath( @Nonnull Class testClass, @Nonnull String testMethodName ) {
return testClass.getName() + File.separator + testMethodName;
}
public static void assertFileByHash( @Nonnull String path, @Nonnull Hash expected, @Nonnull File fileUnderTest ) throws IOException {
Hash actual = HashCalculator.calculate( expected.getAlgorithm(), fileUnderTest );
if ( expected.equals( actual ) ) {
return; //everything went fine
}
File copy = createCopyFile( path, fileUnderTest.getName() );
if ( copy.exists() ) {
FileUtils.moveFile( copy, new File( copy.getParentFile(), copy.getName() + "." + System.currentTimeMillis() ) );
}
FileUtils.copyFile( fileUnderTest, copy );
assertThat( createReason( copy ), expected, is( actual ) );
}
@Nonnull
private static String createReason( @Nonnull File copy ) {
return "Stored questionable file under test at <" + copy.getAbsolutePath() + ">";
}
public static void assertFileByHash( @Nonnull String path, @Nonnull Iterable expectedHashes, @Nonnull File fileUnderTest ) throws IOException {
Collection actualHashes = new ArrayList();
for ( Hash expected : expectedHashes ) {
Hash actual = HashCalculator.calculate( expected.getAlgorithm(), fileUnderTest );
actualHashes.add( actual );
if ( expected.equals( actual ) ) {
return; //everything went fine
}
}
File copy = createCopyFile( path, fileUnderTest.getName() );
FileUtils.copyFile( fileUnderTest, copy );
Assert.assertThat( createReason( copy ), actualHashes, CoreMatchers.>is( expectedHashes ) );
}
@Nonnull
static File createCopyFile( @Nonnull String path, @Nonnull String name ) {
return new File( new File( FAILED_FILES_DIR, path ), name );
}
/**
* The directory where the files have been stored
*/
@Nonnull
public static final File FAILED_FILES_DIR = new File( TestUtils.getTmpDir(), "junit-failed-files" );
@Nonnull
public static String guessPathFromStackTrace() {
StackTraceElement[] elements = Thread.currentThread().getStackTrace();
if ( elements.length < 4 ) {
return "unknown";
}
StackTraceElement element = elements[3];
return element.getClassName() + File.separator + element.getMethodName();
}
}
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