Add grammer for lua 5.2 syntax and add unit test for LuaParser

test/junit/org/luaj/vm2/AllTests.java

@@ -29,6 +29,7 @@ import org.luaj.vm2.WeakTableTest.WeakKeyValueTableTest;
 import org.luaj.vm2.WeakTableTest.WeakValueTableTest;
 import org.luaj.vm2.compiler.CompilerUnitTests;
 import org.luaj.vm2.compiler.DumpLoadEndianIntTest;
+import org.luaj.vm2.compiler.LuaParserTests;
 import org.luaj.vm2.compiler.RegressionTests;
 import org.luaj.vm2.compiler.SimpleTests;
 import org.luaj.vm2.lib.jse.LuaJavaCoercionTest;
@@ -69,6 +70,7 @@ public class AllTests {
 		TestSuite compiler = new TestSuite("Lua Compiler Tests");
 		compiler.addTestSuite(CompilerUnitTests.class);
 		compiler.addTestSuite(DumpLoadEndianIntTest.class);
+		compiler.addTestSuite(LuaParserTests.class);
 		compiler.addTestSuite(RegressionTests.class);
 		compiler.addTestSuite(SimpleTests.class);
 		suite.addTest(compiler);

test/junit/org/luaj/vm2/compiler/AbstractUnitTests.java

@@ -46,10 +46,23 @@ abstract public class AbstractUnitTests extends TestCase {
         _G = JsePlatform.standardGlobals();
     }
 
+    protected String pathOfFile(String file) {
+        return jar + dir + "/" + file;
+    }
+    
+    protected InputStream inputStreamOfPath(String path) throws IOException {
+        URL url = new URL(path);
+        return url.openStream();
+    }
+    
+    protected InputStream inputStreamOfFile(String file) throws IOException {
+    	return inputStreamOfPath(pathOfFile(file));
+    }
+    
     protected void doTest(String file) {
         try {
             // load source from jar
-            String path = jar + dir + "/" + file;
+            String path = pathOfFile(file);
             byte[] lua = bytesFromJar(path);
 
             // compile in memory
@@ -83,8 +96,7 @@ abstract public class AbstractUnitTests extends TestCase {
     }
 
     protected byte[] bytesFromJar(String path) throws IOException {
-        URL url = new URL(path);
-        InputStream is = url.openStream();
+        InputStream is = inputStreamOfPath(path);
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         byte[] buffer = new byte[2048];
         int n;

test/junit/org/luaj/vm2/compiler/LuaParserTests.java

@@ -0,0 +1,28 @@
+package org.luaj.vm2.compiler;
+
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
+
+import org.luaj.vm2.LuaValue;
+import org.luaj.vm2.parser.LuaParser;
+
+public class LuaParserTests extends CompilerUnitTests {
+
+    protected void setUp() throws Exception {
+        super.setUp();
+        LuaValue.valueOf(true);
+    }
+	
+	protected void doTest(String file) {
+		try {
+			InputStream is = inputStreamOfFile(file);
+			Reader r = new InputStreamReader(is, "ISO-8859-1");
+			LuaParser parser = new LuaParser(r);
+			parser.Chunk();
+		} catch (Exception e) {
+			fail(e.getMessage());
+			e.printStackTrace();
+		}
+	}
+}