diff --git a/CHANGELOG.md b/CHANGELOG.md
index 719e5a6..6b72f2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,17 @@
+### v0.0.15
+* feat(fs): support relative paths
+* fix(util.loadFile): do not override the exceptions
+
+### v0.0.14
+* http.ServerResponse: publish headerSent, getHeader, write
+* http.ServerRequest: add getHeader
+
+### v0.0.13
+* Add http.ServerRequest.headers
+
+### v0.0.12
+* http.ServerResponse emit "end" event
+
 ### v0.0.11
 * Added exists/existsSync to fs mocks
 
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..58d61e7
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+The MIT License
+
+Copyright (C) 2012-2013 Vojta Jína.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/lib/fs.js b/lib/fs.js
index 887dcbd..a3ceece 100644
--- a/lib/fs.js
+++ b/lib/fs.js
@@ -1,4 +1,3 @@
-// TODO(vojta): allow relative paths
 var util = require('util');
 var path = require('path');
 var predictableNextTick = require('./util.js').predictableNextTick;
@@ -50,11 +49,13 @@ var Directory = function(mtime) {
  */
 var Mock = function(structure) {
   var watchers = {};
+  var cwd = '/';
 
   // TODO(vojta): convert structure to contain only instances of File/Directory (not primitives)
 
-  var getPointer = function(path, pointer) {
-    var parts = path.replace(/\\/g, '/').replace(/\/$/, '').split('/').slice(1);
+  var getPointer = function(filepath, pointer) {
+    var absPath = path.resolve(cwd, filepath);
+    var parts = absPath.replace(/\\/g, '/').replace(/\/$/, '').split('/').slice(1);
 
     while (parts.length) {
       if (!pointer[parts[0]]) break;
@@ -275,6 +276,10 @@ var Mock = function(structure) {
       callback(current, previous);
     });
   };
+
+  this._setCWD = function(path) {
+    cwd = path;
+  };
 };
 
 
diff --git a/lib/http.js b/lib/http.js
index 548ee80..c6ceb4f 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -3,49 +3,70 @@ var EventEmitter = require('events').EventEmitter;
 
 
 var ServerResponse = function() {
-  var headSent = false;
   var bodySent = false;
 
   this._headers = {};
   this._body = null;
+  this._status = null;
 
   this._isFinished = function() {
-    return headSent && bodySent;
+    return this.headerSent && bodySent;
   };
 
+  this.headerSent = false;
+
   this.setHeader = function(name, value) {
-    if (headSent) {
+    if (this.headerSent) {
       throw new Error("Can't set headers after they are sent.");
     }
 
     this._headers[name] = value;
   };
 
+  this.getHeader = function(name) {
+    return this._headers[name];
+  };
+
   this.removeHeader = function(name) {
     delete this._headers[name];
   };
 
   this.writeHead = function(status) {
-    if (headSent) {
+    if (this.headerSent) {
       throw new Error("Can't render headers after they are sent to the client.");
     }
 
-    headSent = true;
+    this.headerSent = true;
     this._status = status;
   };
 
-  this.end = function(body) {
-    if (bodySent) return;
+  this.write = function(content) {
+    if (bodySent) {
+      throw new Error("Can't write to already finished response.");
+    }
+
+    this._body = this._body ? this._body + content.toString() : content.toString();
+  };
+
+  this.end = function(content) {
+    if (content) {
+      this.write(content );
+    }
 
     bodySent = true;
-    this._body = body.toString();
+    this.emit('end');
   };
 };
 
 util.inherits(ServerResponse, EventEmitter);
 
-var ServerRequest = function(url) {
+var ServerRequest = function(url, headers) {
   this.url = url;
+  this.headers = headers || {};
+
+  this.getHeader = function(key) {
+    return this.headers[key];
+  };
 };
 
 util.inherits(ServerRequest, EventEmitter);
diff --git a/lib/util.js b/lib/util.js
index ab24a68..a5d4a9a 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -1,6 +1,7 @@
 var vm = require('vm');
 var fs = require('fs');
 var path = require('path');
+var coffee = require('coffee-script')
 
 var nextTickQueue = [];
 var nextTickRegistered = false;
@@ -81,8 +82,9 @@ var loadFile = function(filePath, mocks, globals, mockNested) {
   globals = globals || {};
 
   filePath = path.normalize(filePath);
-
-  if (filePath.substr(-3) !== '.js') {
+  var extname = path.extname(filePath);
+  
+  if (extname !== '.js' && extname !== '.coffee' && extname !== '.litcoffee'){
     filePath += '.js';
   }
 
@@ -128,7 +130,12 @@ var loadFile = function(filePath, mocks, globals, mockNested) {
   });
 
   try {
-    vm.runInNewContext(fs.readFileSync(filePath), context, filePath);
+    if (extname === '.coffee' || extname === '.litcoffee') {
+        jsSource = compileCoffeeScript(filePath);
+    } else {
+        jsSource = fs.readFileSync(filePath);
+    }
+    vm.runInNewContext(jsSource, context);
   } catch (e) {
     e.stack = e.name + ': ' + e.message + '\n' +
         '\tat ' + filePath;
@@ -139,6 +146,20 @@ var loadFile = function(filePath, mocks, globals, mockNested) {
   return context;
 };
 
+/**
+ * compile coffeescript
+ *
+ * @param {string} filePath Absolute path to module (file to load)
+ * @return {string} javascript source
+ */
+function compileCoffeeScript(filePath) {
+  var coffeeSource = fs.readFileSync(filePath, {encoding: 'utf8'});
+  var options = {encoding: 'utf8', bare: true, literate: false};
+  if (filePath.substr(-10) === '.litcoffee') {
+    options.literate = true;
+  }
+  return coffee.compile(coffeeSource, options);
+}
 
 // PUBLIC stuff
 exports.loadFile = loadFile;
diff --git a/package.json b/package.json
index 31bbd30..a2323a9 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,9 @@
     "Damien Duportal <damien.duportal@gmail.com>",
     "Taichi <ryushi@gmail.com>"
   ],
-  "dependencies": {},
+  "dependencies": {
+    "coffee-script": ">=1.5.0"
+  },
   "devDependencies": {
     "coffee-script": "1.1.2",
     "jasmine-node": "1.0.11",
@@ -37,5 +39,5 @@
   "engines": {
     "node": ">= 0.6.5"
   },
-  "version": "0.0.11"
-}
\ No newline at end of file
+  "version": "0.0.15"
+}
diff --git a/test/fixtures/other.coffee b/test/fixtures/other.coffee
new file mode 100644
index 0000000..3b3183e
--- /dev/null
+++ b/test/fixtures/other.coffee
@@ -0,0 +1,4 @@
+#A fake module for testing util.loadFile()
+
+exports.id = 'LOCAL_MODULE'
+exports.fs = require 'fs'
diff --git a/test/fixtures/other.litcoffee b/test/fixtures/other.litcoffee
new file mode 100644
index 0000000..3f3f780
--- /dev/null
+++ b/test/fixtures/other.litcoffee
@@ -0,0 +1,4 @@
+A fake module for testing util.loadFile()
+
+    exports.id = 'LOCAL_MODULE'
+    exports.fs = require 'fs'
diff --git a/test/fixtures/some.coffee b/test/fixtures/some.coffee
new file mode 100644
index 0000000..5494816
--- /dev/null
+++ b/test/fixtures/some.coffee
@@ -0,0 +1,6 @@
+# A fake module for testing util.loadFile()
+
+privateNumber = 100
+privateFs = require 'fs'
+privateLocalModule = require './other.coffee'
+privateConsole = console
diff --git a/test/fixtures/some.litcoffee b/test/fixtures/some.litcoffee
new file mode 100644
index 0000000..dc6558e
--- /dev/null
+++ b/test/fixtures/some.litcoffee
@@ -0,0 +1,7 @@
+A fake module for testing util.loadFile()
+
+    privateNumber = 100
+    privateFs = require 'fs'
+    privateLocalModule = require './other.litcoffee'
+    privateConsole = console
+
diff --git a/test/fs.spec.coffee b/test/fs.spec.coffee
index e618df3..af52a49 100644
--- a/test/fs.spec.coffee
+++ b/test/fs.spec.coffee
@@ -387,3 +387,17 @@ describe 'fs', ->
 
       fs.exists '/home/vojta/none-existing.js', callback
       waitForFinished()
+
+
+  describe 'relative paths', ->
+
+    it 'should read file with a relative path', ->
+      callback = (err, data) ->
+        expect(err).toBeFalsy()
+        expect(data instanceof Buffer).toBe true
+        expect(data.toString()).toBe 'some'
+        finished++
+
+      fs._setCWD '/home/vojta'
+      fs.readFile './some.js', callback
+      waitForFinished()
diff --git a/test/http.spec.coffee b/test/http.spec.coffee
index 532f6bc..853e1fe 100644
--- a/test/http.spec.coffee
+++ b/test/http.spec.coffee
@@ -28,9 +28,11 @@ describe 'http', ->
       expect(response._status).toBe 201
 
 
-    it 'should ignore end() when already sent', ->
+    it 'should throw when trygin to end() already finished reponse', ->
       response.end 'First Body'
-      response.end 'Another Body'
+
+      expect(-> response.end 'Another Body')
+        .toThrow "Can't write to already finished response."
       expect(response._body).toBe 'First Body'
 
 
@@ -43,6 +45,11 @@ describe 'http', ->
       expect(response._headers).toEqual {'Content-Type': 'text/plain'}
 
 
+    it 'should getHeader()', ->
+      response.setHeader 'Content-Type', 'json'
+      expect(response.getHeader 'Content-Type').toBe 'json'
+
+
     it 'should throw when trying to send headers twice', ->
       response.writeHead 200
 
@@ -57,6 +64,21 @@ describe 'http', ->
         .toThrow "Can't set headers after they are sent."
 
 
+    it 'should write body', ->
+      response.write 'a'
+      response.end 'b'
+
+      expect(response._body).toBe 'ab'
+
+
+    it 'should throw when trying to write after end', ->
+      response.write 'one'
+      response.end 'two'
+
+      expect(-> response.write 'more')
+        .toThrow "Can't write to already finished response."
+
+
     it 'isFinished() should assert whether headers and body has been sent', ->
       expect(response._isFinished()).toBe false
 
@@ -68,3 +90,13 @@ describe 'http', ->
 
       response.end 'Some body'
       expect(response._isFinished()).toBe true
+
+
+  #==============================================================================
+  # http.ServerRequest
+  #==============================================================================
+  describe 'ServerRequest', ->
+
+    it 'should return headers', ->
+      request = new httpMock.ServerRequest '/some', {'Content-Type': 'json'}
+      expect(request.getHeader 'Content-Type').toBe 'json'
diff --git a/test/util.spec.coffee b/test/util.spec.coffee
index 501df27..30db922 100644
--- a/test/util.spec.coffee
+++ b/test/util.spec.coffee
@@ -180,3 +180,81 @@ describe 'mock-util', ->
 
       expect(module.privateLocalModule.fs).toBe fsMock
 
+
+  #============================================================================
+  # util.loadFile() CoffeeScript
+  #============================================================================
+  describe 'loadFile', ->
+    loadFile = util.loadFile
+    fixturePath = __dirname + '/fixtures/some.coffee'
+
+    it 'should load file with access to private state', ->
+      module = loadFile fixturePath
+      expect(module.privateNumber).toBe 100
+
+
+    it 'should inject mocks', ->
+      fsMock = {}
+      module = loadFile fixturePath, {fs: fsMock}
+      expect(module.privateFs).toBe fsMock
+
+
+    it 'should load local modules', ->
+      module = loadFile fixturePath
+      expect(module.privateLocalModule).toBeDefined()
+      expect(module.privateLocalModule.id).toBe 'LOCAL_MODULE'
+
+
+    it 'should inject globals', ->
+      fakeConsole = {}
+      module = loadFile fixturePath, {}, {console: fakeConsole}
+      expect(module.privateConsole).toBe fakeConsole
+
+
+    it 'should inject mocks into nested modules', ->
+      fsMock = {}
+
+      # /fixtures/some.coffee requires /fixtures/other.coffee
+      # /fixtures/other.coffee requires fs
+      module = loadFile fixturePath, {fs: fsMock}, {}, true
+
+      expect(module.privateLocalModule.fs).toBe fsMock
+
+  #============================================================================
+  # util.loadFile() literate style CoffeeScript
+  #============================================================================
+  describe 'loadFile', ->
+    loadFile = util.loadFile
+    fixturePath = __dirname + '/fixtures/some.litcoffee'
+
+    it 'should load file with access to private state', ->
+      module = loadFile fixturePath
+      expect(module.privateNumber).toBe 100
+
+
+    it 'should inject mocks', ->
+      fsMock = {}
+      module = loadFile fixturePath, {fs: fsMock}
+      expect(module.privateFs).toBe fsMock
+
+
+    it 'should load local modules', ->
+      module = loadFile fixturePath
+      expect(module.privateLocalModule).toBeDefined()
+      expect(module.privateLocalModule.id).toBe 'LOCAL_MODULE'
+
+
+    it 'should inject globals', ->
+      fakeConsole = {}
+      module = loadFile fixturePath, {}, {console: fakeConsole}
+      expect(module.privateConsole).toBe fakeConsole
+
+
+    it 'should inject mocks into nested modules', ->
+      fsMock = {}
+
+      # /fixtures/some.litcoffee requires /fixtures/other.litcoffee
+      # /fixtures/other.litcoffee requires fs
+      module = loadFile fixturePath, {fs: fsMock}, {}, true
+
+      expect(module.privateLocalModule.fs).toBe fsMock