Set up the ability to fail tests on warnings.

diff --git a/auto_tests/misc/local.html b/auto_tests/misc/local.html
index 65dc8ab..0d4fe45 100644 (file)
--- a/auto_tests/misc/local.html
+++ b/auto_tests/misc/local.html
@@ -71,16 +71,17 @@
   <script type="text/javascript">
 
   // save Dygraph.warn so we can catch warnings.
-  // Disabled for now.
-  // var originalDygraphWarn = Dygraph.warn;
-  // Dygraph.warn = function(msg) {
-  //   if (msg == "Using default labels. Set labels explicitly via 'labels' in the options parameter") {
-  //     originalDygraphWarn(msg);
-  //     return;
-  //   }
-  //   throw "Warnings not permitted: " + msg;
-  // }
-  // Dygraph.prototype.warn = Dygraph.warn;
+  if (false) { // Set true if you want warnings to cause failures.
+    var originalDygraphWarn = Dygraph.warn;
+    Dygraph.warn = function(msg) {
+      if (msg == "Using default labels. Set labels explicitly via 'labels' in the options parameter") {
+        originalDygraphWarn(msg);
+        return;
+      }
+      throw "Warnings not permitted: " + msg;
+    }
+    Dygraph.prototype.warn = Dygraph.warn;
+  }
 
   var tc = null; // Selected test case
   var name = null;