Improve error reporting.

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

@@ -21,7 +21,11 @@
  ******************************************************************************/
 package org.luaj.vm2;
 
+import java.io.IOException;
+import java.io.InputStream;
+
 import org.luaj.vm2.compiler.LuaC;
+import org.luaj.vm2.lib.BaseLib;
 
 
 /**
@@ -42,7 +46,14 @@ public class ErrorsTest extends ScriptDrivenTest {
 		super.setUp();
 	}
 
-	public void testBaseLibArgs()       { runTest("baselibargs");      }
+	public void testBaseLibArgs()       { 
+		BaseLib.instance.STDIN = new InputStream() {
+			public int read() throws IOException {
+				return -1;
+			}
+		};
+		runTest("baselibargs");      
+	}
 	public void testCoroutineLibArgs()  { runTest("coroutinelibargs"); }	
 	public void testIoLibArgs()         { runTest("iolibargs");        }	
 	public void testMathLibArgs()       { runTest("mathlibargs");      }	

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

@@ -68,13 +68,13 @@ public class ScriptDrivenTest extends TestCase {
 	
 	protected void setUp() throws Exception {
 		super.setUp();
+		initGlobals();
 	}
 
 	// */
 	protected void runTest(String testName) {
 		try {
 			// override print()
-			initGlobals();
 			final ByteArrayOutputStream output = new ByteArrayOutputStream();
 			final PrintStream oldps = BaseLib.instance.STDOUT;
 			final PrintStream ps = new PrintStream( output );