/**
* Copyright 2010 JBoss Inc
*
* 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 org.drools.command.assertion;
import java.util.HashMap;
import java.util.Map;
import org.drools.command.Command;
import org.drools.command.Context;
import org.drools.command.impl.GenericCommand;
import org.drools.core.util.StringUtils;
import org.mvel2.MVEL;
public class AssertEquals
implements
GenericCommand<Void> {
private String message;
private Object expectedObject;
private String expectedIdentifier;
private Command command;
private String mvelString;
public AssertEquals(String message,
Object expectedObject,
Command command,
String mvelString) {
this.message = message;
this.expectedObject = expectedObject;
this.command = command;
this.mvelString = mvelString;
}
public AssertEquals(String message,
String expectedIdentifier,
Command command,
String mvelString) {
this.message = message;
this.expectedIdentifier = expectedIdentifier;
this.command = command;
this.mvelString = mvelString;
}
public Void execute(Context context) {
Object actualObject = ((GenericCommand) command).execute( context );
if ( this.mvelString != null ) {
actualObject = MVEL.eval( this.mvelString,
actualObject );
}
if ( this.expectedIdentifier != null ) {
this.expectedObject = context.get( this.expectedIdentifier );
}
Map vars = new HashMap();
vars.put( "expected",
expectedObject );
vars.put( "actual",
actualObject );
if ( ((Boolean) MVEL.eval( "expected != actual",
vars )) ) {
throw new AssertionError( format( this.message,
expectedObject,
actualObject ) );
}
// Assert.assertTrue( this.message,
// (Boolean) MVEL.eval( "expected == actual",
// vars ) );
return null;
}
static String format(String message,
Object expected,
Object actual) {
StringBuilder builder = new StringBuilder();
if ( !StringUtils.isEmpty( message ) ) {
builder.append( message );
builder.append( " " );
}
String expectedString = String.valueOf( expected );
String actualString = String.valueOf( actual );
if ( expectedString.equals( actualString ) ) {
builder.append( "expected: " );
builder.append( formatClassAndValue( expected,
expectedString ) );
builder.append( " but was: " );
builder.append( formatClassAndValue( actual,
actualString ) );
} else {
builder.append( "expected:<" );
builder.append( expectedString );
builder.append( "> but was:<" );
builder.append( actualString );
}
return builder.toString();
}
private static String formatClassAndValue(Object value,
String valueString) {
String className = value == null ? "null" : value.getClass().getName();
return className + "<" + valueString + ">";
}
public String toString() {
return "assert";
}
}