Make the test harness skip non-test files

This change makes TreeTester and EncodingTester skip all files except *.dat
files, and makes TokenizerTester skip all files except *.test files.

Author: sideshowbarker

test-src/nu/validator/htmlparser/test/EncodingTester.java

@@ -114,6 +114,9 @@ private boolean skipLabel() throws IOException {
      */
     public static void main(String[] args) throws IOException, SAXException {
         for (int i = 0; i < args.length; i++) {
+            if (!args[i].endsWith(".dat")) {
+                continue;
+            }
             EncodingTester tester = new EncodingTester(new FileInputStream(
                     args[i]));
             tester.runTests();

test-src/nu/validator/htmlparser/test/TokenizerTester.java

@@ -212,6 +212,9 @@ private void runTestInner(String inputString, JSONArray expectedTokens,
     public static void main(String[] args) throws TokenStreamException,
             RecognitionException, SAXException, IOException {
         for (int i = 0; i < args.length; i++) {
+            if (!args[i].endsWith(".test")) {
+                continue;
+            }
             TokenizerTester tester = new TokenizerTester(new FileInputStream(
                     args[i]));
             tester.runTests();

test-src/nu/validator/htmlparser/test/TreeTester.java

@@ -263,6 +263,9 @@ private boolean skipLabel() throws IOException {
      */
     public static void main(String[] args) throws Throwable {
         for (int i = 0; i < args.length; i++) {
+            if (!args[i].endsWith(".dat")) {
+                continue;
+            }
             TreeTester tester = new TreeTester(new FileInputStream(args[i]));
             tester.runTests();
         }