Allow user to stop a specs execution when an expectation fails

[finish #1165916] #577

lib/jasmine-core/boot/boot.js

@@ -52,6 +52,9 @@
   var catchingExceptions = queryString.getParam("catch");
   env.catchExceptions(typeof catchingExceptions === "undefined" ? true : catchingExceptions);
 
+  var throwingExpectationFailures = queryString.getParam("throwFailures");
+  env.throwOnExpectationFailure(throwingExpectationFailures);
+
   /**
    * ## Reporters
    * The `HtmlReporter` builds all of the HTML UI for the runner page. This reporter paints the dots, stars, and x's for specs, as well as all spec names and all failures (if any).
@@ -59,6 +62,7 @@
   var htmlReporter = new jasmine.HtmlReporter({
     env: env,
     onRaiseExceptionsClick: function() { queryString.navigateWithNewParam("catch", !env.catchingExceptions()); },
+    onThrowExpectationsClick: function() { queryString.navigateWithNewParam("throwFailures", !env.throwingExpectationFailures()); },
     addToExistingQueryString: function(key, value) { return queryString.fullStringWithNewParam(key, value); },
     getContainer: function() { return document.body; },
     createElement: function() { return document.createElement.apply(document, arguments); },