fix safe_append_output test

IPython/html/tests/notebook/safe_append_output.js

@@ -1,32 +1,32
 //
 // Test validation in append_output
 //
 // Invalid output data is stripped and logged.
 //
 
 casper.notebook_test(function () {
     // this.printLog();
     var messages = [];
     this.on('remote.message', function (msg) {
         messages.push(msg);
     });
     
     this.evaluate(function () {
         var cell = IPython.notebook.get_cell(0);
         cell.set_text( "dp = get_ipython().display_pub\n" +
-                       "dp.publish('test', {'text/plain' : '5', 'image/png' : 5})"
+                       "dp.publish({'text/plain' : '5', 'image/png' : 5})"
         );
         cell.execute();
     });
 
     this.wait_for_output(0);
     this.on('remote.message', function () {});
 
     this.then(function () {
         var output = this.get_output_cell(0);
         this.test.assert(messages.length > 0, "Captured log message");
         this.test.assertEquals(messages[messages.length-1], "Invalid type for image/png 5", "Logged Invalid type message");
         this.test.assertEquals(output['image/png'], undefined, "Non-string png data was stripped");
         this.test.assertEquals(output['text/plain'], '5', "text data is fine");
     });
 });