From faa6fe36b9a7b0bc510b85a9190fee04ee0047f1 Mon Sep 17 00:00:00 2001
From: schristou88 <schristou88@gmail.com>
Date: Tue, 16 Jul 2013 07:49:27 -0500
Subject: [PATCH] Fix issue #42

---
 cobertura/src/main/javacc/Java1.1.jj          |  2 +-
 .../cobertura/bugs/GithubIssue42.java         | 29 +++++++++
 .../test/AbstractCoberturaTestCase.java       | 63 +++++++++++++++----
 3 files changed, 82 insertions(+), 12 deletions(-)
 create mode 100644 cobertura/src/test/java/net/sourceforge/cobertura/bugs/GithubIssue42.java

diff --git a/cobertura/src/main/javacc/Java1.1.jj b/cobertura/src/main/javacc/Java1.1.jj
index 8f1d30607..886117a1b 100644
--- a/cobertura/src/main/javacc/Java1.1.jj
+++ b/cobertura/src/main/javacc/Java1.1.jj
@@ -2365,7 +2365,7 @@ void EqualityExpression() :
 void EqualityExpression() :
 {}
 {
-  AssigmentExpression() ( ( "==" | "!=" ) AssigmentExpression() )*
+  AssigmentExpression() ( ( "==" | "!=" | "+=" | "-=" | "*=" | "/=" | "&=" | "|=" | "^=" | "%=" | "<<=" | ">>=" | ">>>=") AssigmentExpression() )*
 }
 
 void AssigmentExpression() :
diff --git a/cobertura/src/test/java/net/sourceforge/cobertura/bugs/GithubIssue42.java b/cobertura/src/test/java/net/sourceforge/cobertura/bugs/GithubIssue42.java
new file mode 100644
index 000000000..60cfae860
--- /dev/null
+++ b/cobertura/src/test/java/net/sourceforge/cobertura/bugs/GithubIssue42.java
@@ -0,0 +1,29 @@
+package net.sourceforge.cobertura.bugs;
+
+import java.io.IOException;
+
+import org.junit.Test;
+
+import net.sourceforge.cobertura.test.AbstractCoberturaTestCase;
+
+public class GithubIssue42 extends AbstractCoberturaTestCase {
+
+	@Test
+	public void testPlusEqualsParsing() throws IOException {
+		String imports = "";
+		String method = "\n public void foo() {" + "\n   int yyn = 0;"
+				+ "\n   int yychar = 1;" + "\n   if ((yyn += yychar) >= 0)"
+				+ "\n   {} " + "\n   if ((yyn -= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn *= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn /= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn &= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn |= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn ^= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn %= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn <<= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn >>= yychar) >= 0)" + "\n   {} "
+				+ "\n   if ((yyn >>>= yychar) >= 0)" + "\n   {} " + "\n }";
+
+		super.parseIssueTester(imports, method);
+	}
+}
\ No newline at end of file
diff --git a/cobertura/src/test/java/net/sourceforge/cobertura/test/AbstractCoberturaTestCase.java b/cobertura/src/test/java/net/sourceforge/cobertura/test/AbstractCoberturaTestCase.java
index 3f3e0d9c7..ec9edd3fb 100644
--- a/cobertura/src/test/java/net/sourceforge/cobertura/test/AbstractCoberturaTestCase.java
+++ b/cobertura/src/test/java/net/sourceforge/cobertura/test/AbstractCoberturaTestCase.java
@@ -7,23 +7,17 @@
 import net.sourceforge.cobertura.ant.ReportTask;
 import net.sourceforge.cobertura.test.util.TestUtils;
 import org.apache.commons.io.FileUtils;
+import org.apache.tools.ant.DefaultLogger;
+import org.apache.tools.ant.Project;
 import org.apache.tools.ant.taskdefs.Java;
-import org.apache.tools.ant.types.DirSet;
-import org.apache.tools.ant.types.Path;
 import org.junit.After;
 import org.junit.Before;
-import org.xml.sax.SAXException;
-
-import com.sun.corba.se.impl.oa.poa.AOMEntry;
-
 import java.io.File;
 import java.io.IOException;
+import java.io.PrintStream;
 import java.util.List;
 
-import javax.xml.parsers.ParserConfigurationException;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.*;
 
 /**
  * @author schristou88
@@ -35,7 +29,7 @@ public class AbstractCoberturaTestCase {
 	public static File reportDir;
 	public static File instrumentDir;
 	File mainSourceFile;
-	File datafile;
+	public static File datafile;
 
 	@Before
 	public void setUp() throws Exception {
@@ -107,4 +101,51 @@ public Node createAndExecuteMainMethod(String packageName, String fileName,
 		return TestUtils.getXMLReportDOM(srcDir.getAbsolutePath()
 				+ "/coverage.xml");
 	}
+
+	/**
+	 * 
+	 * @param method method with the parsing issue
+	 * @throws IOException 
+	 */
+	public static void parseIssueTester(String imports, String method)
+			throws IOException {
+		String wrapper = "\n package mypackage;" + "\n " + imports
+				+ "\n public class FooMain {" + method + "\n }";
+
+		FileUtils.write(new File(srcDir, "mypackage/FooMain.java"), wrapper);
+
+		TestUtils.compileSource(TestUtils.antBuilder, srcDir);
+
+		TestUtils.instrumentClasses(TestUtils.antBuilder, srcDir, datafile,
+				instrumentDir);
+
+		DefaultLogger fileLogger = new DefaultLogger();
+		fileLogger.setErrorPrintStream(new PrintStream(new File(reportDir,
+				"error.log")));
+		fileLogger.setOutputPrintStream(new PrintStream(new File(reportDir,
+				"std.log")));
+		fileLogger.setMessageOutputLevel(Project.MSG_INFO);
+		TestUtils.project.addBuildListener(fileLogger);
+
+		ReportTask reportTask = new ReportTask();
+		reportTask.setProject(TestUtils.project);
+		reportTask.setDataFile(datafile.getAbsolutePath());
+		reportTask.setFormat("xml");
+		reportTask.setSrcDir(srcDir.getAbsolutePath());
+		reportTask.setDestDir(reportDir);
+		reportTask.setFailonerror(true);
+		reportTask.execute();
+
+		TestUtils.project.removeBuildListener(fileLogger);
+
+		if (FileUtils.readFileToString(new File(reportDir, "error.log"))
+				.contains("JavaNCSS got an error while parsing the java file"))
+			fail("JavaNCSS Error, see console output or file: "
+					+ new File(reportDir, "error.log").getAbsolutePath());
+
+		if (FileUtils.readFileToString(new File(reportDir, "std.log"))
+				.contains("JavaNCSS got an error while parsing the java file"))
+			fail("JavaNCSS Error, see console output or file: "
+					+ new File(reportDir, "std.log").getAbsolutePath());
+	}
 }