/*
* Copyright 2009 Google 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 com.google.gwt.uibinder.elementparsers;
import com.google.gwt.core.ext.UnableToCompleteException;
import junit.framework.TestCase;
import org.xml.sax.SAXException;
import java.util.Iterator;
/**
* A unit test. Guess what of.
*/
public class LayoutPanelParserTest extends TestCase {
private static final String PARSED_TYPE = "com.google.gwt.user.client.ui.LayoutPanel";
private ElementParserTester tester;
@Override
public void setUp() throws Exception {
super.setUp();
tester = new ElementParserTester(PARSED_TYPE, new LayoutPanelParser());
}
public void testBadChild() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:blah/>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
assertTrue("expect \"Only g:layer\" error",
tester.logger.died.contains("Only <g:layer> children"));
}
}
public void testBadValue() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer left='goosnarg'><g:HTML/></g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
assertTrue("expect \"Unable to parse\" error",
tester.logger.died.contains("Unable to parse"));
}
}
public void testHappy() throws UnableToCompleteException, SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer>");
b.append(" <g:Label id='foo0'>nada</g:Label>");
b.append(" </g:layer>");
b.append(" <g:layer left='1em' width='1px'>");
b.append(" <g:Label id='foo1'>left-width</g:Label>");
b.append(" </g:layer>");
b.append(" <g:layer right='1em' width='1px'>");
b.append(" <g:Label id='foo2'>right-width</g:Label>");
b.append(" </g:layer>");
b.append(" <g:layer left='1em' right='1px'>");
b.append(" <g:Label id='foo3'>left-right</g:Label>");
b.append(" </g:layer>");
b.append(" <g:layer top='1em' height='50%'>");
b.append(" <g:Label id='foo4'>top-height</g:Label>");
b.append(" </g:layer>");
b.append(" <g:layer bottom='1em' height='50%'>");
b.append(" <g:Label id='foo5'>bottom-height</g:Label>");
b.append(" </g:layer>");
b.append(" <g:layer top='1em' bottom='50%'>");
b.append(" <g:Label id='foo6'>top-bottom</g:Label>");
b.append(" </g:layer>");
b.append(" <g:layer top='{foo.value}em' height='50{foo.unit}'>");
b.append(" <g:Label id='foo7'>top-height</g:Label>");
b.append(" </g:layer>");
b.append("</g:LayoutPanel>");
String[] expected = {
"fieldName.add(<g:Label id='foo0'>);",
"fieldName.add(<g:Label id='foo1'>);",
"fieldName.setWidgetLeftWidth(<g:Label id='foo1'>, 1, "
+ "com.google.gwt.dom.client.Style.Unit.EM, 1, com.google.gwt.dom.client.Style.Unit.PX);",
"fieldName.add(<g:Label id='foo2'>);",
"fieldName.setWidgetRightWidth(<g:Label id='foo2'>, 1, "
+ "com.google.gwt.dom.client.Style.Unit.EM, 1, com.google.gwt.dom.client.Style.Unit.PX);",
"fieldName.add(<g:Label id='foo3'>);",
"fieldName.setWidgetLeftRight(<g:Label id='foo3'>, 1, "
+ "com.google.gwt.dom.client.Style.Unit.EM, 1, com.google.gwt.dom.client.Style.Unit.PX);",
"fieldName.add(<g:Label id='foo4'>);",
"fieldName.setWidgetTopHeight(<g:Label id='foo4'>, 1, "
+ "com.google.gwt.dom.client.Style.Unit.EM, 50, com.google.gwt.dom.client.Style.Unit.PCT);",
"fieldName.add(<g:Label id='foo5'>);",
"fieldName.setWidgetBottomHeight(<g:Label id='foo5'>, 1, "
+ "com.google.gwt.dom.client.Style.Unit.EM, 50, com.google.gwt.dom.client.Style.Unit.PCT);",
"fieldName.add(<g:Label id='foo6'>);",
"fieldName.setWidgetTopBottom(<g:Label id='foo6'>, 1, "
+ "com.google.gwt.dom.client.Style.Unit.EM, 50, com.google.gwt.dom.client.Style.Unit.PCT);",
"fieldName.add(<g:Label id='foo7'>);",
"fieldName.setWidgetTopHeight(<g:Label id='foo7'>, (double)foo.value(), "
+ "com.google.gwt.dom.client.Style.Unit.EM, 50, foo.unit());" };
tester.parse(b.toString());
assertStatements(expected);
}
public void testNegativeTopLeft() throws UnableToCompleteException, SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer left='-1em' width='2px' top='-3mm' height='4px'>");
b.append(" <g:Label/>");
b.append(" </g:layer>");
b.append("</g:LayoutPanel>");
tester.parse(b.toString());
assertStatements("fieldName.add(<g:Label>);",
"fieldName.setWidgetLeftWidth(<g:Label>, "
+ "-1, com.google.gwt.dom.client.Style.Unit.EM, "
+ "2, com.google.gwt.dom.client.Style.Unit.PX);",
"fieldName.setWidgetTopHeight(<g:Label>, "
+ "-3, com.google.gwt.dom.client.Style.Unit.MM, "
+ "4, com.google.gwt.dom.client.Style.Unit.PX);");
}
public void testNegativeWidth() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer left='1em' width='-2px'>");
b.append(" <g:Label/>");
b.append(" </g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
String died = tester.logger.died;
assertTrue(died, died.contains("Attribute 'width' can not be negative"));
}
}
public void testNegativeHeight() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer top='1em' height='-2px'>");
b.append(" <g:Label/>");
b.append(" </g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
String died = tester.logger.died;
assertTrue(died, died.contains("Attribute 'height' can not be negative"));
}
}
public void testLonelyBottom() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer bottom='0'><g:HTML/></g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
assertTrue("expect \"must be paired\" error",
tester.logger.died.contains("must be paired"));
}
}
public void testLonelyLeft() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer left='0'><g:HTML/></g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
assertTrue("expect \"must be paired\" error",
tester.logger.died.contains("must be paired"));
}
}
public void testLonelyRight() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer right='0'><g:HTML/></g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
assertTrue("expect \"must be paired\" error",
tester.logger.died.contains("must be paired"));
}
}
public void testLonelyTop() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer top='0'><g:HTML/></g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
assertTrue("expect \"must be paired\" error",
tester.logger.died.contains("must be paired"));
}
}
public void testOverConstrainedHorizontally() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer left='0' width='0' right='0'><g:HTML/></g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
String died = tester.logger.died;
assertTrue(died, died.contains("too many horizontal constraints"));
}
}
public void testOverConstrainedVertically() throws SAXException {
StringBuffer b = new StringBuffer();
b.append("<g:LayoutPanel>");
b.append(" <g:layer top='0' height='0' bottom='0'><g:HTML/></g:layer>");
b.append("</g:LayoutPanel>");
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
String died = tester.logger.died;
assertTrue(died, died.contains("too many vertical constraints"));
}
}
private void assertStatements(String... expected) {
Iterator<String> i = tester.writer.statements.iterator();
for (String e : expected) {
assertEquals(e, i.next());
}
assertFalse(i.hasNext());
assertNull(tester.logger.died);
}
}