/*
* Copyright (c) 2009. All rights reserved.
*/
package ro.isdc.wro.model.resource.processor;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.io.StringWriter;
import java.net.URL;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.concurrent.Callable;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import ro.isdc.wro.WroRuntimeException;
import ro.isdc.wro.config.Context;
import ro.isdc.wro.config.jmx.WroConfiguration;
import ro.isdc.wro.config.support.ContextPropagatingCallable;
import ro.isdc.wro.model.resource.Resource;
import ro.isdc.wro.model.resource.ResourceType;
import ro.isdc.wro.model.resource.processor.impl.css.CssImportPreProcessor;
import ro.isdc.wro.util.WroTestUtils;
/**
* Test for css import processor.
*
* @author Alex Objelean
*/
public class TestCssImportPreProcessor {
private ResourcePreProcessor victim;
@Before
public void setUp() {
final WroConfiguration config = new WroConfiguration();
config.setIgnoreFailingProcessor(true);
Context.set(Context.standaloneContext(), config);
victim = new CssImportPreProcessor();
WroTestUtils.initProcessor(victim);
}
@After
public void tearDown() {
Context.unset();
}
@Test
public void testFromFolder()
throws Exception {
Context.get().getConfig().setIgnoreMissingResources(false);
final URL url = getClass().getResource("cssImport");
final File testFolder = new File(url.getFile(), "test");
final File expectedFolder = new File(url.getFile(), "expected");
WroTestUtils.compareFromDifferentFoldersByExtension(testFolder, expectedFolder, "css", victim);
}
@Test
public void shouldSupportCorrectResourceTypes() {
WroTestUtils.assertProcessorSupportResourceTypes(victim, ResourceType.CSS);
}
@Test
public void shouldNotFailWhenInvalidResourceIsFound() throws Exception {
processInvalidImport();
}
@Test(expected = IOException.class)
public void shouldFailWhenInvalidResourceIsFound() throws Exception {
Context.get().getConfig().setIgnoreMissingResources(false);
processInvalidImport();
}
private void processInvalidImport()
throws IOException {
final Resource resource = Resource.create("someResource.css");
final Reader reader = new StringReader("@import('/path/to/invalid.css');");
victim.process(resource, reader, new StringWriter());
}
@Test
public void shouldInvokeImportDetected()
throws IOException {
final AtomicInteger times = new AtomicInteger();
victim = new CssImportPreProcessor() {
@Override
protected void onImportDetected(final String foundImportUri) {
times.incrementAndGet();
}
};
WroTestUtils.initProcessor(victim);
final Resource resource = Resource.create("someResource.css");
final Reader reader = new StringReader("@import('/path/to/invalid.css');");
victim.process(resource, reader, new StringWriter());
assertEquals(1, times.get());
}
@Test
public void shouldCorrectlyDetectImportWithDoubleQuotes()
throws Exception {
assertImportDetected("@import(\"child/style.css\");", "/css/child/style.css");
}
@Test
public void shouldCorrectlyDetectImport()
throws Exception {
assertImportDetected("@import(child/style.css);", "/css/child/style.css");
}
@Test
public void shouldCorrectlyDetectImportWithSimpleQuotes()
throws Exception {
assertImportDetected("@import('child/style.css');", "/css/child/style.css");
}
void assertImportDetected(final String content, final String expected)
throws IOException {
final AtomicBoolean found = new AtomicBoolean();
victim = new CssImportPreProcessor() {
@Override
protected void onImportDetected(final String foundImportUri) {
assertEquals(expected, foundImportUri);
found.set(true);
}
@Override
protected String doTransform(final String cssContent, final List<Resource> foundImports)
throws IOException {
return "";
}
};
WroTestUtils.initProcessor(victim);
victim.process(Resource.create("/css/parent.css"), new StringReader(content), new StringWriter());
assertTrue(found.get());
}
/**
* Fixes <a href="http://code.google.com/p/wro4j/issues/detail?id=505">CssImport processor recursion detection is not
* thread-safe</a> issue.
*/
@Test
public void shouldNotComplainAboutRecursiveImportWhenRunningConcurrently() throws Exception {
final AtomicReference<Map<?, ?>> contextMapRef = new AtomicReference<Map<?,?>>();
victim = new CssImportPreProcessor() {
{{
contextMapRef.set(getContextMap());
}}
@Override
protected void onRecursiveImportDetected() {
throw new WroRuntimeException("Recursion detected");
}
};
WroTestUtils.initProcessor(victim);
WroTestUtils.runConcurrently(new ContextPropagatingCallable<Void>(new Callable<Void>() {
public Void call()
throws Exception {
Context.set(Context.standaloneContext());
final Reader reader = new StringReader("@import('/path/to/imported');");
final Resource resource1 = Resource.create("resource1.css");
final Resource resource2 = Resource.create("resource2.css");
if (new Random().nextBoolean()) {
victim.process(resource1, reader, new StringWriter());
} else {
victim.process(resource2, reader, new StringWriter());
}
Context.unset();
return null;
}
}));
assertTrue(contextMapRef.get().isEmpty());
}
}