diff --git a/ext/jasmine-webkit-specrunner/ConsoleOutput.cpp b/ext/jasmine-webkit-specrunner/ConsoleOutput.cpp
index 3b92cff..2093d99 100644
--- a/ext/jasmine-webkit-specrunner/ConsoleOutput.cpp
+++ b/ext/jasmine-webkit-specrunner/ConsoleOutput.cpp
@@ -82,8 +82,15 @@ void ConsoleOutput::logSpecFilename(const QString &name) {
 }
 
 void ConsoleOutput::logSpecResult(const QString &result) {
+  QStringList lines = result.split("\n");
+  QStringListIterator linesIterator(lines);
+
   red();
-  *outputIO << "  " << qPrintable(result) << std::endl;
+  while (linesIterator.hasNext()) {
+    *outputIO << "  " << qPrintable(linesIterator.next()) << std::endl;
+    yellow();
+  }
+
   clear();
 }
 
diff --git a/ext/jasmine-webkit-specrunner/ConsoleOutput.h b/ext/jasmine-webkit-specrunner/ConsoleOutput.h
index 898e7e4..b15004b 100644
--- a/ext/jasmine-webkit-specrunner/ConsoleOutput.h
+++ b/ext/jasmine-webkit-specrunner/ConsoleOutput.h
@@ -4,6 +4,7 @@
 #include <QObject>
 #include <iostream>
 #include <QStack>
+#include <QStringList>
 
 class ConsoleOutput : public QObject {
   public:
diff --git a/ext/jasmine-webkit-specrunner/test.rb b/ext/jasmine-webkit-specrunner/test.rb
index ca7f407..0caf700 100644
--- a/ext/jasmine-webkit-specrunner/test.rb
+++ b/ext/jasmine-webkit-specrunner/test.rb
@@ -7,6 +7,8 @@ system %{make clean}
 $: << File.expand_path("../../../lib", __FILE__)
 require 'qt/qmake'
 
+result = 0
+
 Dir['*_test.pro'].each do |test|
   FileUtils.rm_f('jhw-test')
 
@@ -15,10 +17,15 @@ Dir['*_test.pro'].each do |test|
   if File.file?('jhw-test')
     system %{./jhw-test}
     if $?.exitstatus != 0
-      exit 1
+      result = 1
+      break
     end
   else
-    exit 1
+    result = 1
+    break
   end
 end
 
+Qt::Qmake.make!('jasmine-headless-webkit', 'specrunner.pro')
+
+exit result
diff --git a/jasmine/jasmine.headless-reporter.coffee b/jasmine/jasmine.headless-reporter.coffee
index a98bdbc..edd8deb 100644
--- a/jasmine/jasmine.headless-reporter.coffee
+++ b/jasmine/jasmine.headless-reporter.coffee
@@ -24,6 +24,23 @@ jasmine.Spec.prototype.getJHWSpecInformation = ->
     parts.push('')
   parts.join("||")
 
+jasmine.Spec.prototype.fail = (e) ->
+  if e and window.CoffeeScriptToFilename
+    filename = e.sourceURL.split('/').pop()
+    if realFilename = window.CoffeeScriptToFilename[filename]
+      e = {
+        name: e.name,
+        message: e.message,
+        lineNumber: "~" + String(e.line),
+        sourceURL: realFilename
+
+  expectationResult = new jasmine.ExpectationResult({
+    passed: false,
+    message: if e then jasmine.util.formatException(e) else 'Exception',
+    trace: { stack: e.stack }
+  })
+  @results_.addResult(expectationResult)
+
 if !jasmine.WaitsBlock.prototype._execute
   jasmine.WaitsBlock.prototype._execute = jasmine.WaitsBlock.prototype.execute
   jasmine.WaitsForBlock.prototype._execute = jasmine.WaitsForBlock.prototype.execute
@@ -37,6 +54,24 @@ if !jasmine.WaitsBlock.prototype._execute
   jasmine.WaitsBlock.prototype.execute = pauseAndRun
   jasmine.WaitsForBlock.prototype.execute = pauseAndRun
 
+  jasmine.NestedResults.prototype.addResult_ = jasmine.NestedResults.prototype.addResult
+
+  jasmine.NestedResults.prototype.addResult = (result) ->
+    result.expectations = []
+    # always three up?
+    lineCount = 0
+    for line in arguments.callee.caller.caller.caller.toString().split("\n")
+      line = line.replace(/^\s*/, '').replace(/\s*$/, '')
+      if line.match(/^\s*expect/)
+        result.expectations.push(line)
+      lineCount += 1
+
+    this.addResult_(result)
+  }
+
+  jasmine.ExpectationResult.prototype.line = ->
+    if @expectations && @lineNumber then @expectations[@lineNumber] else ''
+
 # Try to get the line number of a failed spec
 class window.HeadlessReporterResult
   constructor: (@name, @splitName) ->
@@ -50,7 +85,10 @@ class window.HeadlessReporterResult
 
     JHW.printName(output)
     for result in @results
-      JHW.printResult(result)
+      output = result.message
+      if result.lineNumber
+        output += " (line ~#{bestChoice.lineNumber + result.lineNumber})\n  #{result.line()}"
+      JHW.printResult(output)
   @findSpecLine: (splitName) ->
     bestChoice = { accuracy: 0, file: null, lineNumber: null }
 
@@ -104,9 +142,13 @@ class jasmine.HeadlessReporter
       JHW.specFailed(spec.getJHWSpecInformation())
       @failedCount++
       failureResult = new HeadlessReporterResult(spec.getFullName(), spec.getSpecSplitName())
+      testCount = 1
       for result in results.getItems()
         if result.type == 'expect' and !result.passed_
-          failureResult.addResult(result.message)
+          if foundLine = result.expectations[testCount - 1]
+            result.lineNumber = testCount - 1
+          failureResult.addResult(result)
+        testCount += 1
       @results.push(failureResult)
 
   reportSpecStarting: (spec) ->
diff --git a/jasmine/jasmine.headless-reporter.js b/jasmine/jasmine.headless-reporter.js
index 04268e6..8904609 100644
--- a/jasmine/jasmine.headless-reporter.js
+++ b/jasmine/jasmine.headless-reporter.js
@@ -26,6 +26,28 @@
     }
     return parts.join("||");
   };
+  jasmine.Spec.prototype.fail = function(e) {
+    var expectationResult, filename, realFilename;
+    if (e && window.CoffeeScriptToFilename) {
+      filename = e.sourceURL.split('/').pop();
+      if (realFilename = window.CoffeeScriptToFilename[filename]) {
+        e = {
+          name: e.name,
+          message: e.message,
+          lineNumber: "~" + String(e.line),
+          sourceURL: realFilename
+        };
+      }
+    }
+    expectationResult = new jasmine.ExpectationResult({
+      passed: false,
+      message: e ? jasmine.util.formatException(e) : 'Exception',
+      trace: {
+        stack: e.stack
+      }
+    });
+    return this.results_.addResult(expectationResult);
+  };
   if (!jasmine.WaitsBlock.prototype._execute) {
     jasmine.WaitsBlock.prototype._execute = jasmine.WaitsBlock.prototype.execute;
     jasmine.WaitsForBlock.prototype._execute = jasmine.WaitsForBlock.prototype.execute;
@@ -38,6 +60,29 @@
     };
     jasmine.WaitsBlock.prototype.execute = pauseAndRun;
     jasmine.WaitsForBlock.prototype.execute = pauseAndRun;
+    jasmine.NestedResults.prototype.addResult_ = jasmine.NestedResults.prototype.addResult;
+    jasmine.NestedResults.prototype.addResult = function(result) {
+      var line, lineCount, _i, _len, _ref;
+      result.expectations = [];
+      lineCount = 0;
+      _ref = arguments.callee.caller.caller.caller.toString().split("\n");
+      for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+        line = _ref[_i];
+        line = line.replace(/^\s*/, '').replace(/\s*$/, '');
+        if (line.match(/^\s*expect/)) {
+          result.expectations.push(line);
+        }
+        lineCount += 1;
+      }
+      return this.addResult_(result);
+    };
+    jasmine.ExpectationResult.prototype.line = function() {
+      if (this.expectations && this.lineNumber) {
+        return this.expectations[this.lineNumber];
+      } else {
+        return '';
+      }
+    };
   }
   window.HeadlessReporterResult = (function() {
     function HeadlessReporterResult(name, splitName) {
@@ -60,7 +105,11 @@
       _results = [];
       for (_i = 0, _len = _ref.length; _i < _len; _i++) {
         result = _ref[_i];
-        _results.push(JHW.printResult(result));
+        output = result.message;
+        if (result.lineNumber) {
+          output += " (line ~" + (bestChoice.lineNumber + result.lineNumber) + ")\n  " + (result.line());
+        }
+        _results.push(JHW.printResult(output));
       }
       return _results;
     };
@@ -130,7 +179,7 @@
       return this.startTime = new Date();
     };
     HeadlessReporter.prototype.reportSpecResults = function(spec) {
-      var failureResult, result, results, _i, _len, _ref;
+      var failureResult, foundLine, result, results, testCount, _i, _len, _ref;
       if (this.hasError()) {
         return;
       }
@@ -142,12 +191,17 @@
         JHW.specFailed(spec.getJHWSpecInformation());
         this.failedCount++;
         failureResult = new HeadlessReporterResult(spec.getFullName(), spec.getSpecSplitName());
+        testCount = 1;
         _ref = results.getItems();
         for (_i = 0, _len = _ref.length; _i < _len; _i++) {
           result = _ref[_i];
           if (result.type === 'expect' && !result.passed_) {
-            failureResult.addResult(result.message);
+            if (foundLine = result.expectations[testCount - 1]) {
+              result.lineNumber = testCount - 1;
+            }
+            failureResult.addResult(result);
           }
+          testCount += 1;
         }
         return this.results.push(failureResult);
       }
diff --git a/lib/jasmine/files_list.rb b/lib/jasmine/files_list.rb
index 37beebe..2764b28 100644
--- a/lib/jasmine/files_list.rb
+++ b/lib/jasmine/files_list.rb
@@ -1,6 +1,7 @@
 require 'jasmine-core'
 require 'iconv'
 require 'time'
+require 'multi_json'
 
 module Jasmine
   class FilesList
@@ -63,10 +64,25 @@ module Jasmine
           alert_time = nil
         end
 
-        case File.extname(file)
+        function_locations = {}
+        source = nil
+
+        result = case File.extname(file)
         when '.coffee'
           begin
-            %{<script type="text/javascript">#{Jasmine::Headless::CoffeeScriptCache.for(file)}</script>}
+            cache = Jasmine::Headless::CoffeeScriptCache.new(file)
+            source = cache.handle
+            if cache.cached?
+              %{
+                <script type="text/javascript" src="#{cache.cache_file}"></script>S
+                <script type="text/javascript">
+                  window.CoffeeScriptToFilename = window.CoffeeScriptToFilename || {};
+                  window.CoffeeScriptToFilename['#{File.split(cache.cache_file).last}'] = '#{file}';
+                </script>
+              }
+            else
+              %{<script type="text/javascript">#{source}</script>}
+            end
           rescue CoffeeScript::CompilationError => ne
             puts "[%s] %s: %s" % [ 'coffeescript'.color(:red), file.color(:yellow), ne.message.to_s.color(:white) ]
             raise ne
@@ -79,6 +95,8 @@ module Jasmine
         when '.css'
           %{<link rel="stylesheet" href="#{file}" type="text/css" />}
         end
+
+        result
       }.flatten.compact.reject(&:empty?)
     end
 
diff --git a/lib/jasmine/headless/cacheable_action.rb b/lib/jasmine/headless/cacheable_action.rb
index 1b7e474..9390d90 100644
--- a/lib/jasmine/headless/cacheable_action.rb
+++ b/lib/jasmine/headless/cacheable_action.rb
@@ -58,7 +58,11 @@ module Jasmine::Headless
     end
 
     def fresh?
-      File.exist?(cache_file) && (File.mtime(file) < File.mtime(cache_file))
+      cached? && (File.mtime(file) < File.mtime(cache_file))
+    end
+
+    def cached?
+      File.exist?(cache_file)
     end
 
     def action
diff --git a/lib/jasmine/headless/runner.rb b/lib/jasmine/headless/runner.rb
index 7791103..b032df7 100644
--- a/lib/jasmine/headless/runner.rb
+++ b/lib/jasmine/headless/runner.rb
@@ -14,7 +14,8 @@ module Jasmine
         'spec_dir' => 'spec/javascripts',
         'src_dir' => nil,
         'stylesheets' => [],
-        'src_files' => []
+        'src_files' => [],
+        'backtrace' => []
       }
 
       RUNNER_DIR = File.expand_path('../../../../ext/jasmine-webkit-specrunner', __FILE__)
diff --git a/spec/lib/jasmine/files_list_spec.rb b/spec/lib/jasmine/files_list_spec.rb
index 1fe9f37..a5aa268 100644
--- a/spec/lib/jasmine/files_list_spec.rb
+++ b/spec/lib/jasmine/files_list_spec.rb
@@ -170,7 +170,8 @@ describe Jasmine::FilesList do
                                        'test.coffee'
       ])
 
-      Jasmine::Headless::CoffeeScriptCache.stubs(:for).with('test.coffee').returns("i compiled")
+      File.stubs(:read)
+      Jasmine::Headless::CoffeeScriptCache.any_instance.stubs(:handle).returns("i compiled")
     end
 
     context '#files_to_html' do
diff --git a/spec/lib/jasmine/headless/cacheable_action_spec.rb b/spec/lib/jasmine/headless/cacheable_action_spec.rb
index 01b006f..b168999 100644
--- a/spec/lib/jasmine/headless/cacheable_action_spec.rb
+++ b/spec/lib/jasmine/headless/cacheable_action_spec.rb
@@ -22,6 +22,8 @@ describe Jasmine::Headless::CacheableAction do
   let(:cache_file) { File.join(cache_dir, cache_type, Digest::SHA1.hexdigest(file)) }
   let(:cache_file_data) { YAML.load(File.read(cache_file)) }
 
+  let(:cache_object) { described_class.new(file) }
+
   describe '.for' do
     context 'cache disabled' do
       before do
@@ -32,6 +34,8 @@ describe Jasmine::Headless::CacheableAction do
         action_runs!
         described_class.for(file).should == compiled
         cache_file.should_not be_a_file
+
+        cache_object.should_not be_cached
       end
     end
 
@@ -52,6 +56,7 @@ describe Jasmine::Headless::CacheableAction do
           described_class.for(file).should == compiled
 
           cache_file_data.should == compiled
+          cache_object.should be_cached
         end
       end
 
@@ -69,6 +74,7 @@ describe Jasmine::Headless::CacheableAction do
           described_class.for(file).should == compiled
 
           cache_file_data.should == compiled
+          cache_object.should be_cached
         end
       end
 
@@ -81,6 +87,7 @@ describe Jasmine::Headless::CacheableAction do
           described_class.for(file).should == compiled
 
           cache_file_data.should == compiled
+          cache_object.should be_cached
         end
       end
     end
diff --git a/spec/lib/jasmine/template_writer_spec.rb b/spec/lib/jasmine/template_writer_spec.rb
index ad2a8f7..5783e0d 100644
--- a/spec/lib/jasmine/template_writer_spec.rb
+++ b/spec/lib/jasmine/template_writer_spec.rb
@@ -6,6 +6,10 @@ describe Jasmine::TemplateWriter do
   describe '.write!' do
     include FakeFS::SpecHelpers
 
+    before do
+      File.stubs(:read).returns(nil)
+    end
+
     let(:files_list) { Jasmine::FilesList.new }
 
     before do