/*
* 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 com.google.gwt.uibinder.rebind.FieldWriter;
import junit.framework.TestCase;
import java.util.Iterator;
/**
* Test for {@link StackLayoutPanelParser}.
*/
public class StackLayoutPanelParserTest extends TestCase {
private static final String PARSED_TYPE = "com.google.gwt.user.client.ui.StackLayoutPanel";
private ElementParserTester tester;
@Override
public void setUp() throws Exception {
super.setUp();
tester = new ElementParserTester(PARSED_TYPE, new StackLayoutPanelParser());
}
public void testBad_notStack() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='EM'>");
b.append(" <div/>");
b.append("</g:StackLayoutPanel>");
parseAndFail(b, "Only <g:stack> children are allowed");
}
public void testBad_noWidget() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='EM'>");
b.append(" <g:stack>");
b.append(" </g:stack>");
b.append("</g:StackLayoutPanel>");
parseAndFail(b, "Must have a child widget");
}
public void testBad_notWidget() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='EM'>");
b.append(" <g:stack>");
b.append(" <div/>");
b.append(" </g:stack>");
b.append("</g:StackLayoutPanel>");
parseAndFail(b, "Must be a widget");
}
public void testBad_twoWidgets() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='EM'>");
b.append(" <g:stack>");
b.append(" <g:Button/>");
b.append(" <g:Button/>");
b.append(" </g:stack>");
b.append("</g:StackLayoutPanel>");
parseAndFail(b, "May have only one body element");
}
public void testBad_noHeader() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='EM'>");
b.append(" <g:stack>");
b.append(" <g:Button/>");
b.append(" </g:stack>");
b.append("</g:StackLayoutPanel>");
parseAndFail(b, "Requires either a <g:header> or <g:customHeader>");
}
public void testBad_twoHeaders() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='EM'>");
b.append(" <g:stack>");
b.append(" <g:header size='3'>foo</g:header>");
b.append(" <g:header size='3'>bar</g:header>");
b.append(" <g:Button/>");
b.append(" </g:stack>");
b.append("</g:StackLayoutPanel>");
parseAndFail(b, "May have only one <g:header> or <g:customHeader>");
}
public void testBad_twoCustomHeaders() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='EM'>");
b.append(" <g:stack>");
b.append(" <g:customHeader size='3'><g:Label>111</g:Label></g:customHeader>");
b.append(" <g:customHeader size='3'><g:Label>222</g:Label></g:customHeader>");
b.append(" <g:Button/>");
b.append(" </g:stack>");
b.append("</g:StackLayoutPanel>");
parseAndFail(b, "May have only one <g:header> or <g:customHeader>");
}
public void testBad_withCustomHeader_notWidget() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='EM'>");
b.append(" <g:stack>");
b.append(" <g:customHeader size='3'><div/></g:customHeader>");
b.append(" <g:Button/>");
b.append(" </g:stack>");
b.append("</g:StackLayoutPanel>");
parseAndFail(b, "Is not a widget", "<div>");
}
/**
* Parses bad code in given {@link StringBuffer} and asserts that failure
* message has expected strings.
*/
private void parseAndFail(StringBuffer b, String... expectedFailures)
throws Exception {
try {
tester.parse(b.toString());
fail();
} catch (UnableToCompleteException e) {
String died = tester.logger.died;
for (String expectedFailure : expectedFailures) {
assertTrue(died, died.contains(expectedFailure));
}
}
}
public void testHappy() throws Exception {
StringBuffer b = new StringBuffer();
b.append("<g:StackLayoutPanel unit='PX'>");
b.append(" <g:stack>");
b.append(" <g:header size='3'>Re<b>mark</b>able</g:header>");
b.append(" <g:Label id='able'>able</g:Label>");
b.append(" </g:stack>");
b.append(" <g:stack>");
b.append(" <g:customHeader size='3'>");
b.append(" <g:Label id='custom'>Custom</g:Label>");
b.append(" </g:customHeader>");
b.append(" <g:Label id='baker'>baker</g:Label>");
b.append(" </g:stack>");
b.append("</g:StackLayoutPanel>");
FieldWriter w = tester.parse(b.toString());
assertEquals("new " + PARSED_TYPE
+ "(com.google.gwt.dom.client.Style.Unit.PX)", w.getInitializer());
assertStatements(
"fieldName.add(<g:Label id='able'>, \"@mockToken-" + ElementParserTester.FIELD_NAME
+ "-Re<b>mark</b>able\", true, 3);",
"fieldName.add(<g:Label id='baker'>, " + "<g:Label id='custom'>, 3);");
}
public void testNoUnits() throws Exception {
StringBuffer b = new StringBuffer();
b.append(" <g:StackLayoutPanel>");
b.append(" </g:StackLayoutPanel>");
FieldWriter w = tester.parse(b.toString());
assertEquals("new " + PARSED_TYPE
+ "(com.google.gwt.dom.client.Style.Unit.PX)", w.getInitializer());
assertStatements();
}
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);
}
}