runner.js in teaspoon-1.2.0

- old
+ new

@@ -57,13 +57,16 @@
 
     Runner.prototype.pageCallbacks = function() {
       var _this = this;
       return {
         onError: function(message, trace) {
+          var started = _this.page.evaluate(function() {
+            return window.Teaspoon && window.Teaspoon.started;
+          });
           console.log(JSON.stringify({
             _teaspoon: true,
-            type: "error",
+            type: started ? "error" : "exception",
             message: message,
             trace: trace
           }));
           _this.errored = true;
           if (/^TeaspoonError: /.test(message || "")) {
@@ -87,11 +90,36 @@
           _this.start = new Date().getTime();
           var defined = _this.page.evaluate(function() {
             return window.Teaspoon;
           });
           if (!(status === "success" && defined)) {
-            _this.fail("Failed to load: " + _this.url);
-            return;
+            if (status === "success") {
+              // Could not load the window.Teaspoon object from the JavaScript on the
+              // rendered page. This indicates that a problem occured. Lets therfore
+              // print the page as a failure description.
+              // Get plain text of the page, intend all lines (better readable)
+              var ind = "   ";
+              var error = _this.page.plainText.replace(/(?:\n)/g, "\n" + ind);
+              // take only first 10 lines, as they usually provide a good entry
+              // point for debugging and we should not spam our console.
+              var erroroutput = error.split("\n").slice(0, 10);
+              if (erroroutput !== error) {
+                erroroutput.push("... (further lines have been removed)");
+              }
+              var fail = [
+                "Failed to get Teaspoon result object on page: " + _this.url,
+                "The title of this page was '" + _this.page.title + "'.",
+                "",
+                erroroutput.join("\n")
+              ];
+
+              _this.fail(fail.join(" \n" + ind));
+            }
+            else {
+              // Status is not 'success'
+              _this.fail("Failed to load: " + _this.url + ". Status: " + status);
+              return;
+            }
           }
           _this.waitForResults();
         }
       };
     };