AtCharsetRuleStrippingTest.java example

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/*
 * Copyright 2010 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.resources.css;

import com.google.gwt.core.ext.TreeLogger;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.dev.util.DefaultTextOutput;
import com.google.gwt.dev.util.TextOutput;
import com.google.gwt.resources.css.ast.CssNode;
import com.google.gwt.resources.css.ast.CssStylesheet;

import junit.framework.TestCase;

import java.util.List;

/**
 * Tests how CssResource handles stylesheets with unknown at-rules.
 */
public class AtCharsetRuleStrippingTest extends TestCase {
  private static final String SIMPLE = "@simple;";

  public void test() throws UnableToCompleteException {
    CssStylesheet sheet = GenerateCssAst.exec(TreeLogger.NULL,
        getClass().getClassLoader().getResource(
            "com/google/gwt/resources/css/atCharsetRule.css"));

    List<CssNode> nodes = sheet.getNodes();
    assertEquals(1, nodes.size());

    TextOutput out = new DefaultTextOutput(true);
    CssGenerationVisitor v = new CssGenerationVisitor(out);
    v.accept(sheet);

    assertEquals(SIMPLE, out.toString());
  }
}