ComplexityCalculator2Test.java

/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (C) 2000-2002 The Apache Software Foundation.  All rights
 * reserved.
 * Copyright (C) 2008 John Lewis
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
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package net.sourceforge.cobertura.reporting;

import junit.framework.TestCase;
import net.sourceforge.cobertura.coveragedata.SourceFileData;
import net.sourceforge.cobertura.test.util.TestUtils;
import net.sourceforge.cobertura.util.FileFinder;
import org.apache.commons.io.FileUtils;
import org.junit.Test;

import java.io.File;

public class ComplexityCalculator2Test extends TestCase {
	@Test
	public void testSearchJarsForSourceInJar() throws Exception {
		File tempDir = TestUtils.getTempDir();
		File zipFile = TestUtils.createSourceArchive(tempDir);

		//create a ComplexityCalculator that will use the archive
		FileFinder fileFinder = new FileFinder();
		fileFinder
				.addSourceDirectory(zipFile.getParentFile().getAbsolutePath());
		ComplexityCalculator complexity = new ComplexityCalculator(fileFinder);

		double ccn1 = complexity.getCCNForSourceFile(new SourceFileData(
				TestUtils.SIMPLE_SOURCE_PATHNAME));
		assertTrue(ccn1 == 1.0);
	}

	public void testAnnotatedSource() throws Exception {
		/*
		 * Test for bug #2818738.
		 */
		File tempDir = TestUtils.getTempDir();
		String filename = "TBSException.java";
		File sourceFile = new File(tempDir, filename);
		FileUtils
				.write(
						sourceFile,
						"\n public class TBSException extends Exception {"
								+ "\n public TBSException (ErrorHandler handler, Exception wrap) {"
								+ "\n super(wrap);"
								+ "\n @SuppressWarnings(\"unchecked\")"
								+ "\n final Iterator<Exception> iter = handler.getExceptions().iterator();  // LINE 27"
								+ "\n for (; iter.hasNext();) " + "\n {"
								+ "\n Exception exception = iter.next();"
								+ "\n this.errors.add(exception.getMessage());"
								+ "\n }" + "\n 	}" + "\n }");

		//create a ComplexityCalculator that will use the archive
		FileFinder fileFinder = new FileFinder();
		fileFinder.addSourceDirectory(tempDir.getAbsolutePath());
		ComplexityCalculator complexity = new ComplexityCalculator(fileFinder);

		double ccn1 = complexity.getCCNForSourceFile(new SourceFileData(
				filename));
		assertNotNull(ccn1);
		assertEquals(2.0, ccn1, 0.01);
	}

	/**
	 * This test highlights an issue with Javancss.
	 * 
	 * http://jira.codehaus.org/browse/JAVANCSS-37
	 * @throws Exception 
	 * 
	 */
	public void testGenericsProblem() throws Exception {
		File tempDir = TestUtils.getTempDir();
		String filename = "UserAudit.java";
		File sourceFile = new File(tempDir, filename);
		FileUtils
				.write(
						sourceFile,
						"\n import java.util.ArrayList;"
								+ "\n import java.util.List;"
								+ "\n "
								+ "\n "
								+ "\n public class UserAudit extends UserAuditParent {"
								+ "\n void postCopyOnDestination(String str) throws InstantiationException, IllegalAccessException {"
								+ "\n List<AllowedMMProduct> listToReset = new ArrayList<AllowedMMProduct>();"
								+ "\n"
								+ "\n List<AllowedMMProductAudit> auditProducts;"
								+ "\n auditProducts = this.<AllowedMMProduct,AllowedMMProductAudit>copyListFromParent(AllowedMMProductAudit.class, getMmAuthorisedProducts_());"
								+ "\n }"
								+ "\n"
								+ "\n List<AllowedMMProduct> getMmAuthorisedProducts_() {"
								+ "\n return null;" + "\n 	}" + "\n }");

		//create a ComplexityCalculator that will use the archive
		FileFinder fileFinder = new FileFinder();
		fileFinder.addSourceDirectory(tempDir.getAbsolutePath());
		ComplexityCalculator complexity = new ComplexityCalculator(fileFinder);

		double ccn1 = complexity.getCCNForSourceFile(new SourceFileData(
				filename));
		assertNotNull(ccn1);
		assertEquals(
				"Javancss issue has been fixed: http://jira.codehaus.org/browse/JAVANCSS-37.   Now fix this test.",
				0.0/*should be 2.0?*/, ccn1, 0.01);
	}
}