cz.vutbr.web.css.RuleSet Java Examples

@Test
public void testClass() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_CLASS, null);
	assertEquals("One rule is set", 1, ss.size());

	RuleSet rule = (RuleSet) ss.get(0);

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, null, null, rf
			.createClass("fit"));

	assertArrayEquals("Rule contains one class selector .fit", cslist.toArray(), rule
			.getSelectors());

	assertEquals("Rule contains one declaration { width: 80%;}",
			DeclarationsUtil.appendDeclaration(null, "width", tf
					.createPercent(80.0f)), rule.asList());
}
 

@Test 
public void testRGBFunction1() throws IOException, CSSException   {
	
	StyleSheet ss = CSSFactory.parseString(TEST_RGBFUNCTION1, null);
	assertEquals("One rule is set", 1, ss.size());
	
	RuleSet rule = (RuleSet) ss.get(0);				
	
	assertArrayEquals("Rule contains one selector BODY ", 
			SelectorsUtil.createSelectors("BODY"), 
			rule.getSelectors());
	
	assertEquals("Rule contains one declaration {color: #00aa85;}",
			DeclarationsUtil.appendDeclaration(null, "color", 
					tf.createColor(192, 64, 32)),
			rule.asList());
	
}
 

@Test 
public void testRGBFunction2() throws IOException, CSSException   {
	
	StyleSheet ss = CSSFactory.parseString(TEST_RGBFUNCTION2, null);
	assertEquals("One rule is set", 1, ss.size());
	
	RuleSet rule = (RuleSet) ss.get(0);				
	
	assertArrayEquals("Rule contains one selector BODY ", 
			SelectorsUtil.createSelectors("BODY"), 
			rule.getSelectors());
	
	assertEquals("Rule contains one declaration {color: rgb(50%,40%,30%);}",
			DeclarationsUtil.appendDeclaration(null, "color", 
					tf.createColor(127, 102, 76)),
			rule.asList());
}
 

@Test 
public void testRGBFunctionInvalid() throws IOException, CSSException   {
    
    StyleSheet ss = CSSFactory.parseString(TEST_RGBFUNCTION_INVALID, null);
    assertEquals("One rule is set", 1, ss.size());
    
    RuleSet rule = (RuleSet) ss.get(0);             
    
    assertArrayEquals("Rule contains one selector BODY ", 
            SelectorsUtil.createSelectors("BODY"), 
            rule.getSelectors());
    
    assertEquals("Rule contains one declaration", 1, rule.size());
    Term<?> value = rule.get(0).get(0);
    assertTrue("Assigned value is TermFunction (not TermColor)", value instanceof TermFunction);
}
 

@Test 
public void testHSLFunction1() throws IOException, CSSException   {
    
    StyleSheet ss = CSSFactory.parseString(TEST_HSLFUNCTION1, null);
    assertEquals("One rule is set", 1, ss.size());
    
    RuleSet rule = (RuleSet) ss.get(0);             
    
    assertArrayEquals("Rule contains one selector BODY ", 
            SelectorsUtil.createSelectors("BODY"), 
            rule.getSelectors());
    
    assertEquals("Rule contains one declaration with color",
            DeclarationsUtil.appendDeclaration(null, "color", 
                    tf.createColor(0, 255, 0)),
            rule.asList());
    
}
 

@Test 
public void testRGBAFunction1() throws IOException, CSSException   {
    
    StyleSheet ss = CSSFactory.parseString(TEST_RGBAFUNCTION1, null);
    assertEquals("One rule is set", 1, ss.size());
    
    RuleSet rule = (RuleSet) ss.get(0);             
    
    assertArrayEquals("Rule contains one selector BODY ", 
            SelectorsUtil.createSelectors("BODY"), 
            rule.getSelectors());
    
    assertEquals("Rule contains one declaration with color",
            DeclarationsUtil.appendDeclaration(null, "color", 
                    tf.createColor(255, 0, 0, 51)),
            rule.asList());
    
}
 

@Test 
public void testHSLAFunction1() throws IOException, CSSException   {
    
    StyleSheet ss = CSSFactory.parseString(TEST_HSLAFUNCTION1, null);
    assertEquals("One rule is set", 1, ss.size());
    
    RuleSet rule = (RuleSet) ss.get(0);             
    
    assertArrayEquals("Rule contains one selector BODY ", 
            SelectorsUtil.createSelectors("BODY"), 
            rule.getSelectors());
    
    assertEquals("Rule contains one declaration with color",
            DeclarationsUtil.appendDeclaration(null, "color", 
                    tf.createColor(0, 0, 255, 102)),
            rule.asList());
    
}
 

@Test
public void testHashColor1() throws IOException, CSSException   {

	StyleSheet ss = CSSFactory.parseString(TEST_HASH_COLOR1, null);
	assertEquals("One rule is set", 1, ss.size());
	
	RuleSet rule = (RuleSet) ss.get(0);				
	
	assertArrayEquals("Rule contains one selector BODY ", 
			SelectorsUtil.createSelectors("BODY"), 
			rule.getSelectors());
	
	assertEquals("Rule contains one declaration {color: #00aa85;}",
			DeclarationsUtil.appendDeclaration(null, "color", 
					tf.createColor(0, 170, 133)),
			rule.asList());
	
}
 

@Test
public void testHashColor2() throws IOException, CSSException   {
	
	StyleSheet ss = CSSFactory.parseString(TEST_HASH_COLOR2, null);
	assertEquals("One rule is set", 1, ss.size());
	
	final RuleSet rule = (RuleSet) ss.get(0);				
	
	assertArrayEquals("Rule contains two selectors DIV, P", 
			SelectorsUtil.createSelectors("DIV", "P"), 
			rule.getSelectors());
	
	assertEquals("Rule contains one declaration {color: #CCC;}",
			DeclarationsUtil.appendDeclaration(null, "color", 
					tf.createColor(204,204,204)),
			rule.asList());
}
 

@Test
public void testDescendant() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_DESCENDANT, null);

	assertEquals("One rule is set", 1, ss.size());

	RuleSet rule = (RuleSet) ss.get(0);

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, "H1", null);
	SelectorsUtil.appendDescendant(cslist, "P");

	assertArrayEquals("Rule contains one combined selectors H1 P  ", cslist.toArray(),
			rule.getSelectors());

	assertEquals("Rule contains one declaration {display:inline;}",
			DeclarationsUtil.appendDeclaration(null, "display", tf
					.createIdent("inline")), rule.asList());
}
 

@Test
public void testAdjacent() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_ADJACENT, null);
	assertEquals("One rule is set", 1, ss.size());

	RuleSet rule = (RuleSet) ss.get(0);

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, "DIV", null);
	SelectorsUtil.appendAdjacent(cslist, "P");

	assertArrayEquals("Rule contains one combined selectors DIV+P ", cslist.toArray(),
			rule.getSelectors());

	assertEquals("Rule contains one declaration {color:blue;}",
			DeclarationsUtil.appendDeclaration(null, "color", tf
					.createColor(0, 0, 255)), rule.asList());

}
 

@Test
public void testPreceding() throws CSSException, IOException {

    StyleSheet ss = CSSFactory.parseString(TEST_PRECEDING, null);
    assertEquals("One rule is set", 1, ss.size());

    RuleSet rule = (RuleSet) ss.get(0);

    List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
    SelectorsUtil.appendSimpleSelector(cslist, "DIV", null);
    SelectorsUtil.appendPreceding(cslist, "P");

    assertArrayEquals("Rule contains one combined selectors DIV~P ", cslist.toArray(),
            rule.getSelectors());

    assertEquals("Rule contains one declaration {color:blue;}",
            DeclarationsUtil.appendDeclaration(null, "color", tf
                    .createColor(0, 0, 255)), rule.asList());

}
 

/**
 * Extract all the media queries from a {@code styles} stylesheet, resolve relative URIs (if any) in a CSS rules.
 * @param styles a stylesheet to process.
 * @return a list of entities that represent media queries.
 */
private static List<RuleMedia> getMediaQueries(StyleSheet styles) {
    List<RuleMedia> rules = new ArrayList<>();

    if (styles != null) {
        for (RuleBlock<?> ruleBlock : styles) {
            if (ruleBlock instanceof RuleMedia) {
                RuleMedia block = (RuleMedia) ruleBlock;

                for (RuleSet set : block) {
                    set.forEach(HtmlUtils::resolveUris);
                }

                rules.add(block);
            }
        }
    }

    return rules;
}
 

@Test
public void testID() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_ID, null);
	assertEquals("One rule is set", 1, ss.size());

	RuleSet rule = (RuleSet) ss.get(0);

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, null, null, rf
			.createID("krysa"));

	assertArrayEquals("Rule contains one ID selector #krysa", cslist.toArray(), rule
			.getSelectors());

	assertEquals("Rule contains one declaration { font-size: 100px;}",
			DeclarationsUtil.appendDeclaration(null, "font-size", tf
					.createLength(100.0f).setUnit(TermNumeric.Unit.px)),
			rule.asList());
}
 

@Test
public void testEscapedID() throws CSSException, IOException {

    StyleSheet ss = CSSFactory.parseString(TEST_ESCAPED_ID, null);
    assertEquals("One rule is set", 1, ss.size());

    RuleSet rule = (RuleSet) ss.get(0);

    List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
    SelectorsUtil.appendSimpleSelector(cslist, null, null, rf
            .createID("1krysa"));

    assertArrayEquals("Rule contains one ID selector #1krysa", cslist.toArray(), rule
            .getSelectors());

    assertEquals("Rule contains one declaration { font-size: 100px;}",
            DeclarationsUtil.appendDeclaration(null, "font-size", tf
                    .createLength(100.0f).setUnit(TermNumeric.Unit.px)),
            rule.asList());
}
 

@Test
public void testIDAttrib() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_IDATTRIB, null);
	assertEquals("One rule is set", 1, ss.size());

	RuleSet rule = (RuleSet) ss.get(0);

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, null, null, rf
			.createID("krysa"), rf.createAttribute("krysa", true,
			Selector.Operator.EQUALS, "id"));

	assertArrayEquals("Rule contains one ID selector #krysa[id='krysa']",
			cslist.toArray(), rule.getSelectors());

	assertEquals("Rule contains one declaration { text-align: right }",
			DeclarationsUtil.appendDeclaration(null, "text-align", tf
					.createIdent("right")), rule.asList());
}
 

@Test
public void testAttribute() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_ATTRIB, null);
	assertEquals("One rule is set", 1, ss.size());

	RuleSet rule = (RuleSet) ss.get(0);

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, "A", null, rf
			.createAttribute("fit.vutbr.cz", true,
					Selector.Operator.EQUALS, "href"), rf.createAttribute(
			"fit", false, Selector.Operator.DASHMATCH, "id"));

	assertArrayEquals(
			"Rule contains one ID attributed selector A[href='fit.vutbr.cz'][id|=fit]",
			cslist.toArray(), rule.getSelectors());

	assertEquals("Rule contains one declaration { text-align: left; }",
			DeclarationsUtil.appendDeclaration(null, "text-align", tf
					.createIdent("left")), rule.asList());
}
 

@Test
public void testPseudo() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_PSEUDO, null);
	assertEquals("One rule is set", 1, ss.size());

	RuleSet rule = (RuleSet) ss.get(0);

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, null, null, rf.createPseudoClass("hover"));

	assertArrayEquals("Rule contains one pseudoselector :hover", cslist.toArray(), rule
			.getSelectors());

	assertEquals(
			"Rule contains one declaration { text-decoration: underline; }",
			DeclarationsUtil.appendDeclaration(null, "text-decoration", tf
					.createIdent("underline")), rule.asList());
}
 

@Test
public void testPseudoFunc() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_PSEUDO_FUNC, null);
	assertEquals("One rule is set", 1, ss.size());

	RuleSet rule = (RuleSet) ss.get(0);

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, null, null, rf.createPseudoClass("lang", "fr"));
	SelectorsUtil.appendChild(cslist, "Q");

	assertArrayEquals("Rule contains one combined pseudoselector :lang(fr)>Q",
			cslist.toArray(), rule.getSelectors());

	List<Term<?>> terms = DeclarationsUtil.appendTerm(null, null, tf
			.createString("« "));
	DeclarationsUtil.appendSpaceTerm(terms, tf.createString(" »"));

	assertEquals("Rule contains one declaration { quotes: '« ' ' »' }",
			DeclarationsUtil.appendDeclaration(null, "quotes", terms), rule
					.asList());
}
 

@Test
public void testAsterisk() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_ASTERISK, null);
	assertEquals("One rule is set", 1, ss.size());

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, "*", null, rf
			.createClass("home"));

	assertArrayEquals("Rule 1 contains one combined selector *.home", cslist.toArray(),
			((RuleSet) ss.get(0)).getSelectors());

	List<Term<?>> terms = DeclarationsUtil.appendTerm(null, null, tf
			.createIdent("Verdana"));
	DeclarationsUtil.appendCommaTerm(terms, tf.createIdent("monospace"));

	assertEquals(
			"Rule contains one declaration { font-family: Verdana, monospace }",
			DeclarationsUtil.appendDeclaration(null, "font-family", terms),
			((RuleSet) ss.get(0)).asList());
}
 

@Test
public void testAttributePresence() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_ATTRIB_PRESENCE, null);
	assertEquals("One rule is set", 1, ss.size());

	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, "*", null, rf
			.createAttribute(null, false, Selector.Operator.NO_OPERATOR,
					"href"));

	assertArrayEquals("Rule 1 contains one combined selector *[href]", cslist.toArray(),
			((RuleSet) ss.get(0)).getSelectors());

	List<Term<?>> terms = DeclarationsUtil.appendTerm(null, null, tf
			.createIdent("Verdana"));
	DeclarationsUtil.appendCommaTerm(terms, tf.createIdent("monospace"));

	assertEquals(
			"Rule contains one declaration { text-decoration: underline }",
			DeclarationsUtil.appendDeclaration(null, "text-decoration", tf
					.createIdent("underline")), ((RuleSet) ss.get(0))
					.asList());

}
 

@Test
public void legacyPseudoElementSupport() throws CSSException, IOException {
    StyleSheet style = CSSFactory.parseString(TEST_PSEUDO_1, null);
    assertEquals("There are 4 rules", 4, style.size());
    
    List<CombinedSelector> sel1 = SelectorsUtil.appendSimpleSelector(null, "p", null, rf.createPseudoElement("first-line"));
    List<CombinedSelector> sel2 = SelectorsUtil.appendSimpleSelector(null, "p", null, rf.createPseudoElement("first-letter"));
    List<CombinedSelector> sel3 = SelectorsUtil.appendSimpleSelector(null, "p", null, rf.createPseudoElement("before"));
    List<CombinedSelector> sel4 = SelectorsUtil.appendSimpleSelector(null, "p", null, rf.createPseudoElement("after"));

    RuleSet rule1 = (RuleSet) style.get(0);
    assertArrayEquals("Rule contains one selector p::first-line", sel1.toArray(), rule1.getSelectors());
    assertEquals("Rule contains one declaration", 1, rule1.size());
    
    RuleSet rule2 = (RuleSet) style.get(1);
    assertArrayEquals("Rule contains one selector p::first-letter", sel2.toArray(), rule2.getSelectors());
    assertEquals("Rule contains one declaration", 1, rule2.size());
    
    RuleSet rule3 = (RuleSet) style.get(2);
    assertArrayEquals("Rule contains one selector p::before", sel3.toArray(), rule3.getSelectors());
    assertEquals("Rule contains one declaration", 1, rule3.size());
    
    RuleSet rule4 = (RuleSet) style.get(3);
    assertArrayEquals("Rule contains one selector p::after", sel4.toArray(), rule4.getSelectors());
    assertEquals("Rule contains one declaration", 1, rule4.size());
}
 

@Test
public void nonlegacyPseudoElementSupport() throws CSSException, IOException {
    StyleSheet style = CSSFactory.parseString(TEST_PSEUDO_2, null);
    assertEquals("There are 4 rules", 4, style.size());
    
    List<CombinedSelector> sel1 = SelectorsUtil.appendSimpleSelector(null, "p", null, rf.createPseudoElement("first-line"));
    List<CombinedSelector> sel2 = SelectorsUtil.appendSimpleSelector(null, "p", null, rf.createPseudoElement("first-letter"));
    List<CombinedSelector> sel3 = SelectorsUtil.appendSimpleSelector(null, "p", null, rf.createPseudoElement("before"));
    List<CombinedSelector> sel4 = SelectorsUtil.appendSimpleSelector(null, "p", null, rf.createPseudoElement("after"));

    RuleSet rule1 = (RuleSet) style.get(0);
    assertArrayEquals("Rule contains one selector p::first-line", sel1.toArray(), rule1.getSelectors());
    assertEquals("Rule contains one declaration", 1, rule1.size());
    
    RuleSet rule2 = (RuleSet) style.get(1);
    assertArrayEquals("Rule contains one selector p::first-letter", sel2.toArray(), rule2.getSelectors());
    assertEquals("Rule contains one declaration", 1, rule2.size());
    
    RuleSet rule3 = (RuleSet) style.get(2);
    assertArrayEquals("Rule contains one selector p::before", sel3.toArray(), rule3.getSelectors());
    assertEquals("Rule contains one declaration", 1, rule3.size());
    
    RuleSet rule4 = (RuleSet) style.get(3);
    assertArrayEquals("Rule contains one selector p::after", sel4.toArray(), rule4.getSelectors());
    assertEquals("Rule contains one declaration", 1, rule4.size());
}
 

@Test
public void rangeInputPseudoElements() throws CSSException, IOException {
    StyleSheet style = CSSFactory.parseString(TEST_RANGE, null);
    assertEquals("There are 6 rules", 6, style.size());
    
    for (int i = 0; i < TEST_RANGE_ELEMENTS.length; i++) {
        List<CombinedSelector> cslist = SelectorsUtil.appendSimpleSelector(null, 
            "input", 
            null, 
            rf.createAttribute("range", false, Selector.Operator.EQUALS, "type"), 
            rf.createPseudoElement(TEST_RANGE_ELEMENTS[i]));

        RuleSet rule = (RuleSet) style.get(i);
        assertArrayEquals("Rule contains one selector input[type=range]::" + TEST_RANGE_ELEMENTS[i], cslist.toArray(), rule.getSelectors());
        assertEquals("Rule contains one declaration", 1, rule.size());
    }
}
 

@Test
public void testSampleGradients() throws IOException, CSSException {
    StyleSheet ss = CSSFactory.parseString(SAMPLE_LINEAR_GRADIENT_1, null);
    assertEquals("One rule is set", 1, ss.size());

    RuleSet rule1 = (RuleSet) ss.get(0);
    assertArrayEquals("Rule contains one selector div ", SelectorsUtil.createSelectors("div"), rule1.getSelectors());
    assertEquals("Rule contains one declaration for background ", "background", rule1.get(0).getProperty());
    assertEquals("Rule contains one term ", 1, rule1.get(0).size());
    assertTrue("Rule contains a TermFunction ", rule1.get(0).get(0) instanceof TermFunction);

    TermFunction func = (TermFunction) rule1.get(0).get(0);
    assertEquals("Function name is linear-gradient ", "linear-gradient", func.getFunctionName());

    List<List<Term<?>>> separatedArguments = func.getSeparatedArgs(tf.createOperator(','));
    assertEquals("There are 3 comma-separated arguments ", 3, separatedArguments.size());
    assertEquals("The first argument is to bottom ", Arrays.asList(tf.createIdent("to"), tf.createIdent("bottom")), separatedArguments.get(0));
    assertEquals("The first argument is pretty-printed as \"to bottom\" ", "linear-gradient(to bottom,", func.toString().substring(0, "linear-gradient(to bottom,".length()));
    assertEquals("The second argument is rgba(245,245,245,1) 0% ", Arrays.asList(tf.createColor(245, 245, 245, 255), tf.createPercent(0f)), separatedArguments.get(1));
    assertEquals("The second argument is rgba(221,221,221,1) 100% ", Arrays.asList(tf.createColor(221, 221, 221, 255), tf.createPercent(100f)), separatedArguments.get(2));
}
 

@Test
public void testMultipleGradients() throws IOException, CSSException {
    StyleSheet ss = CSSFactory.parseString(TEST_LINEAR_GRADIENT_MULTIPLE, null);
    assertEquals("One rule is set", 1, ss.size());

    RuleSet rule = (RuleSet) ss.get(0);
    assertArrayEquals("Rule contains one selector div ", SelectorsUtil.createSelectors("div"), rule.getSelectors());
    assertEquals("Rule contains one declaration for background ", "background", rule.get(0).getProperty());
    assertEquals("Rule contains two terms ", 2, rule.get(0).size());

    TermFunction func = (TermFunction) rule.get(0).get(0);
    List<List<Term<?>>> separatedArguments = func.getSeparatedArgs(tf.createOperator(','));
    assertEquals("First function name is linear-gradient ", "linear-gradient", func.getFunctionName());
    assertEquals("First function has 2 comma-separated arguments ", 2, separatedArguments.size());
    assertEquals("The first argument is red ", Arrays.asList(tf.createColor(tf.createIdent("red"))), separatedArguments.get(0));
    assertEquals("The second argument is blue ", Arrays.asList(tf.createColor(tf.createIdent("blue"))), separatedArguments.get(1));

    func = (TermFunction) rule.get(0).get(1);
    separatedArguments = func.getSeparatedArgs(tf.createOperator(','));
    assertEquals("Second function name is linear-gradient ", "linear-gradient", func.getFunctionName());
    assertEquals("Second function has 3 comma-separated arguments ", 3, separatedArguments.size());
    assertEquals("The first argument is to right ", Arrays.asList(tf.createIdent("to"), tf.createIdent("right")), separatedArguments.get(0));
    assertEquals("The second argument is yellow ", Arrays.asList(tf.createColor(tf.createIdent("yellow"))), separatedArguments.get(1));
    assertEquals("The third argument is green ", Arrays.asList(tf.createColor(tf.createIdent("green"))), separatedArguments.get(2));
}
 

private static List<RuleBlock<?>> getAtRuleBlocks(StyleSheet styles, StylesEmbeddingOptions options) {
    List<RuleBlock<?>> rules = new ArrayList<>();

    if (styles != null) {
        for (RuleBlock<?> ruleBlock : styles) {
            if (ruleBlock instanceof RuleMedia) {
                RuleMedia block = (RuleMedia) ruleBlock;

                for (RuleSet set : block) {
                    set.forEach(HtmlUtils::resolveUris);
                }

                resolveMediaType(block.getMediaQueries(), options.getMediaType());

                rules.add(block);
            } else if (ruleBlock instanceof RuleFontFace) {
                rules.add(ruleBlock);
            }
        }
    }

    return rules;
}
 

public RuleBlock<?> prepareRuleMedia(List<RuleSet> rules, List<MediaQuery> media) {

		if (rules == null || rules.isEmpty()) {
                        if (log.isDebugEnabled()) {
                            log.debug("Empty RuleMedia was ommited");
                        }
                        return null;
		}

		// create media at position of mark
		RuleMedia rm = rf.createMedia();
		rm.replaceAll(rules);
		if (media != null && !media.isEmpty())
			rm.setMediaQueries(media);

		log.info("Create @media as with:\n{}", rm);

		return (RuleBlock<?>) rm;
	}
 

private void assertSingleId(String input, String className) throws IOException, CSSException
{
    StyleSheet ss = CSSFactory.parseString(input, null);
    assertEquals("One rule is set", 1, ss.size());
    RuleSet rule = (RuleSet) ss.get(0);
    assertEquals("One combined selector", rule.getSelectors().length, 1);
    CombinedSelector cs = rule.getSelectors()[0];
    assertEquals("One selector", cs.size(), 1);
    assertEquals("The class name is correct", className, cs.get(0).getIDName());
}
 

@Test
public void testPSpecial() throws CSSException, IOException {

	StyleSheet ss = CSSFactory.parseString(TEST_PSPECIAL, null);
	assertEquals("Two rules are set", 2, ss.size());

	// test first rule
	List<CombinedSelector> cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, "P", null, 
               rf.createClass("special"), 
               rf.createPseudoElement("before"));

	assertArrayEquals("Rule 1 contains one combined selector P.special:before",
			cslist.toArray(), ((RuleSet) ss.get(0)).getSelectors());

	assertEquals(
			"Rule 2 contains one declaration { content: \"Special! \"}",
			DeclarationsUtil.appendDeclaration(null, "content", tf
					.createString("Special! ")), ((RuleSet) ss.get(0))
					.asList());

	// test second rule
	cslist = SelectorsUtil.appendCS(null);
	SelectorsUtil.appendSimpleSelector(cslist, "P", null, 
               rf.createClass("special"), 
               rf.createPseudoElement("first-letter"));

	assertArrayEquals(
			"Rule 2 contains one combined selector P.special:first-letter",
			cslist.toArray(), ((RuleSet) ss.get(1)).getSelectors());

	assertEquals("Rule 2 contains one declaration { color: #ffd800}",
			DeclarationsUtil.appendDeclaration(null, "color", tf
					.createColor(255, 216, 0)), ((RuleSet) ss.get(1))
					.asList());
}