Ignore CSS errors and warnings while running htmlUnit tests. This stops console
spew when running HtmlUnit tests in Eclipse. Any CSS fatal errors will still be
reported.

Filed HtmlUnit bug at https://sourceforge.net/tracker/?func=detail&aid=3090806&group_id=47038&atid=448266

Patch by: amitmanjhi
Review by: rjrjr,jlabanca

Review at http://gwt-code-reviews.appspot.com/1032801


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9119 8db76d5a-ed1c-0410-87a9-c151d255dfc7

user/src/com/google/gwt/junit/RunStyleHtmlUnit.java

diff --git a/user/src/com/google/gwt/junit/RunStyleHtmlUnit.java b/user/src/com/google/gwt/junit/RunStyleHtmlUnit.java
index 22c1354..ad072b1 100644
--- a/user/src/com/google/gwt/junit/RunStyleHtmlUnit.java
+++ b/user/src/com/google/gwt/junit/RunStyleHtmlUnit.java
@@ -32,6 +32,9 @@
 
 import net.sourceforge.htmlunit.corejs.javascript.ScriptableObject;
 
+import org.w3c.css.sac.CSSParseException;
+import org.w3c.css.sac.ErrorHandler;
+
 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.util.ArrayList;
@@ -91,6 +94,25 @@
     public void run() {
       WebClient webClient = new WebClient(browser);
       webClient.setAlertHandler(this);
+      // Adding a handler that ignores errors to work-around
+      // https://sourceforge.net/tracker/?func=detail&aid=3090806&group_id=47038&atid=448266
+      webClient.setCssErrorHandler(new ErrorHandler() {
+
+        public void error(CSSParseException exception) {
+          // ignore
+        }
+
+        public void fatalError(CSSParseException exception) {
+          treeLogger.log(TreeLogger.WARN,
+              "CSS fatal error: " + exception.getURI() + " ["
+                  + exception.getLineNumber() + ":"
+                  + exception.getColumnNumber() + "] " + exception.getMessage());
+        }
+
+        public void warning(CSSParseException exception) {
+          // ignore
+        }
+      });
       webClient.setIncorrectnessListener(this);
       webClient.setThrowExceptionOnFailingStatusCode(false);
       webClient.setThrowExceptionOnScriptError(true);