/*
* Copyright (c) 2010. All rights reserved.
*/
package ro.isdc.wro.extensions.processor;
import static org.junit.Assert.assertEquals;
import java.io.File;
import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;
import java.net.URL;
import java.util.concurrent.Callable;
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.extensions.processor.js.GoogleClosureCompressorProcessor;
import ro.isdc.wro.model.resource.Resource;
import ro.isdc.wro.model.resource.ResourceType;
import ro.isdc.wro.model.resource.processor.ResourcePreProcessor;
import ro.isdc.wro.model.resource.processor.decorator.LazyProcessorDecorator;
import ro.isdc.wro.util.LazyInitializer;
import ro.isdc.wro.util.WroTestUtils;
import com.google.javascript.jscomp.CompilationLevel;
import com.google.javascript.jscomp.CompilerOptions;
import com.google.javascript.jscomp.SourceFile;
/**
* Test google closure js processor.
*
* @author Alex Objelean
* @created Created on Apr 18, 2010
*/
public class TestGoogleClosureCompressorProcessor {
private File testFolder;
private GoogleClosureCompressorProcessor victim;
@Before
public void setUp() {
testFolder = new File(ClassLoader.getSystemResource("test").getFile());
victim = new GoogleClosureCompressorProcessor() {
@Override
protected CompilerOptions newCompilerOptions() {
final CompilerOptions options = super.newCompilerOptions();
// explicitly set this to null to make test pass also when running mvn test from command line.
// the reason are some weird characters used in jquery-core
options.setOutputCharset(null);
return options;
}
};
Context.set(Context.standaloneContext());
WroTestUtils.createInjector().inject(victim);
}
@After
public void tearDown() {
Context.unset();
}
@Test
public void testWhiteSpaceOnly()
throws IOException {
victim.setCompilationLevel(CompilationLevel.WHITESPACE_ONLY);
final URL url = getClass().getResource("google");
final File expectedFolder = new File(url.getFile(), "expectedWhitespaceOnly");
WroTestUtils.compareFromDifferentFoldersByExtension(testFolder, expectedFolder, "js", (ResourcePreProcessor) victim);
}
@Test
public void testSimpleOptimization()
throws IOException {
victim.setCompilationLevel(CompilationLevel.SIMPLE_OPTIMIZATIONS);
final URL url = getClass().getResource("google");
final File expectedFolder = new File(url.getFile(), "expectedSimple");
WroTestUtils.compareFromDifferentFoldersByExtension(testFolder, expectedFolder, "js", (ResourcePreProcessor) victim);
}
@Test
public void testAdvancedOptimization()
throws IOException {
victim.setCompilationLevel(CompilationLevel.ADVANCED_OPTIMIZATIONS);
final URL url = getClass().getResource("google");
final File expectedFolder = new File(url.getFile(), "expectedAdvanced");
WroTestUtils.compareFromDifferentFoldersByExtension(testFolder, expectedFolder, "js", (ResourcePreProcessor) victim);
}
@Test
public void shouldAcceptNullExterns()
throws IOException {
victim = new GoogleClosureCompressorProcessor(CompilationLevel.ADVANCED_OPTIMIZATIONS) {
@Override
protected SourceFile[] getExterns(final Resource resource) {
return null;
}
};
final StringWriter sw = new StringWriter();
WroTestUtils.createInjector().inject(victim);
victim.process(null, new StringReader("function test( ) {}"), sw);
assertEquals("", sw.toString());
}
@Test(expected = WroRuntimeException.class)
public void shouldFailWhenInvalidExternProvided()
throws IOException {
victim = new GoogleClosureCompressorProcessor(CompilationLevel.ADVANCED_OPTIMIZATIONS) {
@Override
protected SourceFile[] getExterns(final Resource resource) {
return new SourceFile[] {
SourceFile.fromFile(new File("INVALID"))
};
}
};
WroTestUtils.createInjector().inject(victim);
final StringWriter sw = new StringWriter();
victim.process(null, new StringReader("alert(1);"), sw);
// will leave result unchanged, because the processing is not successful.
assertEquals("alert(1);", sw.toString());
}
@Test
public void shouldBeThreadSafe()
throws Exception {
WroTestUtils.runConcurrently(new Callable<Void>() {
@Override
public Void call()
throws Exception {
victim.process(null, new StringReader("alert(1);"), new StringWriter());
return null;
}
});
}
@Test
public void shouldSupportCorrectResourceTypes() {
WroTestUtils.assertProcessorSupportResourceTypes(new GoogleClosureCompressorProcessor(), ResourceType.JS);
}
@Test
public void shouldMinimizeWhenUsedAsLazyProcessor()
throws Exception {
final ResourcePreProcessor victim = new LazyProcessorDecorator(new LazyInitializer<ResourcePreProcessor>() {
@Override
protected ResourcePreProcessor initialize() {
return new GoogleClosureCompressorProcessor();
}
});
WroTestUtils.createInjector().inject(victim);
final StringWriter sw = new StringWriter();
victim.process(null, new StringReader("alert(1);"), sw);
assertEquals("alert(1);", sw.toString());
}
}