/*
* 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.attributeparsers;
import static com.google.gwt.uibinder.attributeparsers.LengthAttributeParser.UNIT;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JEnumType;
import com.google.gwt.core.ext.typeinfo.TypeOracle;
import com.google.gwt.dev.CompilerContext;
import com.google.gwt.dev.javac.CompilationState;
import com.google.gwt.dev.javac.CompilationStateBuilder;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.uibinder.rebind.MortalLogger;
import com.google.gwt.uibinder.test.UiJavaResources;
import junit.framework.TestCase;
/**
* Tests {@link LengthAttributeParser}.
*/
public class LengthAttributeParserTest extends TestCase {
private LengthAttributeParser parser;
@Override
public void setUp() throws Exception {
super.setUp();
MortalLogger logger = MortalLogger.NULL;
CompilationState state = CompilationStateBuilder.buildFrom(
logger.getTreeLogger(), new CompilerContext(), UiJavaResources.getUiResources());
TypeOracle types = state.getTypeOracle();
FieldReferenceConverter converter = new FieldReferenceConverter(null);
DoubleAttributeParser doubleParser = new DoubleAttributeParser(converter,
types.parse("double"), logger);
JEnumType enumType = types.findType(
Unit.class.getCanonicalName()).isEnum();
EnumAttributeParser enumParser = new EnumAttributeParser(converter,
enumType, logger);
parser = new LengthAttributeParser(doubleParser, enumParser, logger);
}
public void testGood() throws UnableToCompleteException {
assertEquals(lengthString("0", "PX"), parser.parse(null, "0"));
assertEquals(lengthString("0", "PT"), parser.parse(null, "0pt"));
assertEquals(lengthString("1", "PX"), parser.parse(null, "1"));
assertEquals(lengthString("1", "PX"), parser.parse(null, "1px"));
assertEquals(lengthString("1", "PCT"), parser.parse(null, "1%"));
assertEquals(lengthString("1", "CM"), parser.parse(null, "1cm"));
assertEquals(lengthString("1", "MM"), parser.parse(null, "1mm"));
assertEquals(lengthString("1", "IN"), parser.parse(null, "1in"));
assertEquals(lengthString("1", "PC"), parser.parse(null, "1pc"));
assertEquals(lengthString("1", "PT"), parser.parse(null, "1pt"));
assertEquals(lengthString("1", "EM"), parser.parse(null, "1em"));
assertEquals(lengthString("1", "EX"), parser.parse(null, "1ex"));
assertEquals(lengthString("1", "PX"), parser.parse(null, "1PX"));
assertEquals(lengthString("1", "PCT"), parser.parse(null, "1PCT"));
assertEquals(lengthString("1", "CM"), parser.parse(null, "1CM"));
assertEquals(lengthString("1", "MM"), parser.parse(null, "1MM"));
assertEquals(lengthString("1", "IN"), parser.parse(null, "1IN"));
assertEquals(lengthString("1", "PC"), parser.parse(null, "1PC"));
assertEquals(lengthString("1", "PT"), parser.parse(null, "1PT"));
assertEquals(lengthString("1", "EM"), parser.parse(null, "1EM"));
assertEquals(lengthString("1", "EX"), parser.parse(null, "1EX"));
assertEquals(lengthString("2.5", "EM"), parser.parse(null, "2.5em"));
assertEquals(lengthString("+1", "EM"), parser.parse(null, "+1em"));
assertEquals(lengthString("-1", "EM"), parser.parse(null, "-1em"));
assertEquals(lengthString("1", "EM"), parser.parse(null, "1 em"));
assertEquals("(double)foo.value(), " + UNIT + ".PX",
parser.parse(null, "{foo.value}px"));
assertEquals("1, foo.unit()",
parser.parse(null, "1{foo.unit}"));
assertEquals("(double)foo.value(), foo.unit()",
parser.parse(null, "{foo.value}{foo.unit}"));
}
public void testBad() {
// Garbage.
try {
parser.parse(null, "fnord");
fail("Expected UnableToCompleteException");
} catch (UnableToCompleteException e) {
/* pass */
}
// Non-decimal value.
try {
parser.parse(null, "xpx");
fail("Expected UnableToCompleteException");
} catch (UnableToCompleteException e) {
/* pass */
}
// Raw unit, no value.
try {
parser.parse(null, "px");
fail("Expected UnableToCompleteException");
} catch (UnableToCompleteException e) {
/* pass */
}
// 0, but with invalid unit.
try {
parser.parse(null, "0foo");
fail("Expected UnableToCompleteException");
} catch (UnableToCompleteException e) {
/* pass */
}
// Too many braces cases.
try {
parser.parse(null, "{{foo.value}px");
fail("Expected UnableToCompleteException");
} catch (UnableToCompleteException e) {
/* pass */
}
try {
parser.parse(null, "1{{foo.unit}");
fail("Expected UnableToCompleteException");
} catch (UnableToCompleteException e) {
/* pass */
}
}
private String lengthString(String value, String unit) {
return value + ", " + UNIT + "." + unit;
}
}