From acba6839a6082e3e3800a733f8baea7c843fc02e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fr=C3=A9d=C3=A9ric=20Guillot?= <fred@kanboard.net>
Date: Sat, 11 Oct 2014 21:11:10 -0400
Subject: [PATCH] Add 3 new fields for tasks: start date, time estimated and
 time spent

---
 Vagrantfile                        |  7 +++-
 app/Controller/Base.php            |  1 +
 app/Controller/Subtask.php         |  3 +-
 app/Controller/Task.php            | 51 +++++++++++++++++++++++-------
 app/Locales/de_DE/translations.php |  9 ++++--
 app/Locales/es_ES/translations.php |  9 ++++--
 app/Locales/fi_FI/translations.php |  9 ++++--
 app/Locales/fr_FR/translations.php |  9 ++++--
 app/Locales/it_IT/translations.php |  9 ++++--
 app/Locales/pl_PL/translations.php |  9 ++++--
 app/Locales/pt_BR/translations.php |  9 ++++--
 app/Locales/ru_RU/translations.php |  9 ++++--
 app/Locales/sv_SE/translations.php |  9 ++++--
 app/Locales/zh_CN/translations.php |  9 ++++--
 app/Model/Base.php                 |  1 +
 app/Model/DateParser.php           | 42 ++++++++++++++++++++++++
 app/Model/SubTask.php              |  1 +
 app/Model/Task.php                 | 10 +++---
 app/Model/TaskExport.php           | 20 +++++++-----
 app/Model/TaskValidator.php        | 24 ++++++++++++++
 app/Model/TimeTracking.php         | 45 ++++++++++++++++++++++++++
 app/Schema/Mysql.php               | 12 ++++++-
 app/Schema/Postgres.php            | 12 ++++++-
 app/Schema/Sqlite.php              | 13 ++++++--
 app/Templates/file_show.php        | 38 ++++++++++++----------
 app/Templates/subtask_create.php   |  2 +-
 app/Templates/subtask_edit.php     |  4 +--
 app/Templates/subtask_show.php     | 22 -------------
 app/Templates/task_details.php     | 15 +++++++++
 app/Templates/task_new.php         |  3 ++
 app/Templates/task_public.php      |  2 ++
 app/Templates/task_show.php        | 15 +++------
 app/Templates/task_time.php        | 15 +++++++++
 app/Templates/task_timesheet.php   | 13 ++++++++
 app/helpers.php                    |  2 +-
 assets/css/app.css                 | 19 +++++------
 tests/functionals.mysql.xml        |  2 +-
 tests/functionals.postgres.xml     |  2 +-
 tests/functionals.sqlite.xml       |  2 +-
 tests/units.postgres.xml           |  1 +
 tests/units/TimeTrackingTest.php   | 44 ++++++++++++++++++++++++++
 41 files changed, 417 insertions(+), 116 deletions(-)
 create mode 100644 app/Model/TimeTracking.php
 create mode 100644 app/Templates/task_time.php
 create mode 100644 app/Templates/task_timesheet.php
 create mode 100644 tests/units/TimeTrackingTest.php

diff --git a/Vagrantfile b/Vagrantfile
index 94eb41b8e..ced296a12 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -6,7 +6,7 @@ VAGRANTFILE_API_VERSION = "2"
 $script = <<SCRIPT
 # install packages
 apt-get update
-apt-get install -y apache2 php5 php5-sqlite php5-ldap php5-xdebug php5-curl php5-mysql php5-pgsql
+apt-get install -y apache2 php5 libapache2-mod-php5 php5-sqlite php5-ldap php5-xdebug php5-curl php5-mysql php5-pgsql
 service apache2 restart
 rm -f /var/www/html/index.html
 date > /etc/vagrant_provisioned_at
@@ -15,6 +15,11 @@ SCRIPT
 
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
 
+  # Virtualbox
+  config.vm.provider "virtualbox" do |v|
+    v.memory = 1024
+  end
+
   # Image
   config.vm.box = "ubuntu/trusty64"
   config.vm.box_url = "http://cloud-images.ubuntu.com/vagrant/trusty/current/trusty-server-cloudimg-amd64-vagrant-disk1.box"
diff --git a/app/Controller/Base.php b/app/Controller/Base.php
index aabb17752..abe702a29 100644
--- a/app/Controller/Base.php
+++ b/app/Controller/Base.php
@@ -34,6 +34,7 @@ use Model\LastLogin;
  * @property \Model\TaskValidator      $taskValidator
  * @property \Model\CommentHistory     $commentHistory
  * @property \Model\SubtaskHistory     $subtaskHistory
+ * @property \Model\TimeTracking       $timeTracking
  * @property \Model\User               $user
  * @property \Model\Webhook            $webhook
  */
diff --git a/app/Controller/Subtask.php b/app/Controller/Subtask.php
index da9acbab3..48f0d6e20 100644
--- a/app/Controller/Subtask.php
+++ b/app/Controller/Subtask.php
@@ -197,7 +197,8 @@ class Subtask extends Base
 
         $value = array(
             'id' => $subtask['id'],
-            'status' => ($subtask['status'] + 1) % 3
+            'status' => ($subtask['status'] + 1) % 3,
+            'task_id' => $task['id'],
         );
 
         if (! $this->subTask->update($value)) {
diff --git a/app/Controller/Task.php b/app/Controller/Task.php
index 163929d23..695e29ec7 100644
--- a/app/Controller/Task.php
+++ b/app/Controller/Task.php
@@ -54,15 +54,29 @@ class Task extends Base
     public function show()
     {
         $task = $this->getTask();
+        $subtasks = $this->subTask->getAll($task['id']);
+
+        $values = array(
+            'id' => $task['id'],
+            'date_started' => $task['date_started'],
+            'time_estimated' => $task['time_estimated'] ?: '',
+            'time_spent' => $task['time_spent'] ?: '',
+        );
+
+        $this->dateParser->format($values, array('date_started'));
 
         $this->response->html($this->taskLayout('task_show', array(
             'project' => $this->project->getById($task['project_id']),
             'files' => $this->file->getAll($task['id']),
             'comments' => $this->comment->getAll($task['id']),
-            'subtasks' => $this->subTask->getAll($task['id']),
+            'subtasks' => $subtasks,
             'task' => $task,
+            'values' => $values,
+            'timesheet' => $this->timeTracking->getTaskTimesheet($task, $subtasks),
             'columns_list' => $this->board->getColumnsList($task['project_id']),
             'colors_list' => $this->color->getList(),
+            'date_format' => $this->config->get('application_date_format'),
+            'date_formats' => $this->dateParser->getAvailableFormats(),
             'menu' => 'tasks',
             'title' => $task['title'],
         )));
@@ -155,17 +169,10 @@ class Task extends Base
     public function edit()
     {
         $task = $this->getTask();
-
-        if (! empty($task['date_due'])) {
-            $task['date_due'] = date($this->config->get('application_date_format'), $task['date_due']);
-        }
-        else {
-            $task['date_due'] = '';
-        }
-
-        $task['score'] = $task['score'] ?: '';
         $ajax = $this->request->isAjax();
 
+        $this->dateParser->format($task, array('date_due'));
+
         $params = array(
             'values' => $task,
             'errors' => array(),
@@ -209,7 +216,7 @@ class Task extends Base
                     $this->response->redirect('?controller=board&action=show&project_id='.$task['project_id']);
                 }
                 else {
-                    $this->response->redirect('?controller=task&action=show&task_id='.$values['id']);
+                    $this->response->redirect('?controller=task&action=show&task_id='.$task['id']);
                 }
             }
             else {
@@ -233,6 +240,28 @@ class Task extends Base
         )));
     }
 
+    /**
+     * Update time tracking information
+     *
+     * @access public
+     */
+    public function time()
+    {
+        $task = $this->getTask();
+        $values = $this->request->getValues();
+
+        list($valid, $errors) = $this->taskValidator->validateTimeModification($values);
+
+        if ($valid && $this->task->update($values)) {
+            $this->session->flash(t('Task updated successfully.'));
+        }
+        else {
+            $this->session->flashError(t('Unable to update your task.'));
+        }
+
+        $this->response->redirect('?controller=task&action=show&task_id='.$task['id']);
+    }
+
     /**
      * Hide a task
      *
diff --git a/app/Locales/de_DE/translations.php b/app/Locales/de_DE/translations.php
index 0aaf58820..fdf966380 100644
--- a/app/Locales/de_DE/translations.php
+++ b/app/Locales/de_DE/translations.php
@@ -349,9 +349,9 @@ return array(
     'estimated' => 'geschätzt',
     'Sub-Tasks' => 'Unteraufgaben',
     'Add a sub-task' => 'Unteraufgabe anlegen',
-    'Original Estimate' => 'Geschätzter Aufwand',
+    'Original estimate' => 'Geschätzter Aufwand',
     'Create another sub-task' => 'Weitere Unteraufgabe anlegen',
-    'Time Spent' => 'Aufgewendete Zeit',
+    'Time spent' => 'Aufgewendete Zeit',
     'Edit a sub-task' => 'Unteraufgabe bearbeiten',
     'Remove a sub-task' => 'Unteraufgabe löschen',
     'The time must be a numeric value' => 'Zeit nur als nummerische Angabe',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Locales/es_ES/translations.php b/app/Locales/es_ES/translations.php
index 95e940753..368a11eea 100644
--- a/app/Locales/es_ES/translations.php
+++ b/app/Locales/es_ES/translations.php
@@ -349,9 +349,9 @@ return array(
     'estimated' => 'estimado',
     'Sub-Tasks' => 'Sub-Tareas',
     'Add a sub-task' => 'Añadir una sub-tarea',
-    'Original Estimate' => 'Estimado Original',
+    'Original estimate' => 'Estimado Original',
     'Create another sub-task' => 'Crear otra sub-tarea',
-    'Time Spent' => 'Tiempo Transcurrido',
+    'Time spent' => 'Tiempo Transcurrido',
     'Edit a sub-task' => 'Editar una sub-tarea',
     'Remove a sub-task' => 'Suprimir una sub-tarea',
     'The time must be a numeric value' => 'El tiempo debe de ser un valor numérico',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Locales/fi_FI/translations.php b/app/Locales/fi_FI/translations.php
index 4364ddc5a..2a2f3e96e 100644
--- a/app/Locales/fi_FI/translations.php
+++ b/app/Locales/fi_FI/translations.php
@@ -349,9 +349,9 @@ return array(
     'estimated' => 'estimoitu',
     'Sub-Tasks' => 'Alitehtävät',
     'Add a sub-task' => 'Lisää alitehtävä',
-    'Original Estimate' => 'Alkuperäinen estimaatti',
+    'Original estimate' => 'Alkuperäinen estimaatti',
     'Create another sub-task' => 'Lisää toinen alitehtävä',
-    'Time Spent' => 'Käytetty aika',
+    'Time spent' => 'Käytetty aika',
     'Edit a sub-task' => 'Muokkaa alitehtävää',
     'Remove a sub-task' => 'Poista alitehtävä',
     'The time must be a numeric value' => 'Ajan pitää olla numero',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Locales/fr_FR/translations.php b/app/Locales/fr_FR/translations.php
index 573b8e89d..49e6bc2fe 100644
--- a/app/Locales/fr_FR/translations.php
+++ b/app/Locales/fr_FR/translations.php
@@ -349,9 +349,9 @@ return array(
     'estimated' => 'estimé',
     'Sub-Tasks' => 'Sous-Tâches',
     'Add a sub-task' => 'Ajouter une sous-tâche',
-    'Original Estimate' => 'Estimation originale',
+    'Original estimate' => 'Estimation originale',
     'Create another sub-task' => 'Créer une autre sous-tâche',
-    'Time Spent' => 'Temps passé',
+    'Time spent' => 'Temps passé',
     'Edit a sub-task' => 'Modifier une sous-tâche',
     'Remove a sub-task' => 'Supprimer une sous-tâche',
     'The time must be a numeric value' => 'Le temps doit-être une valeur numérique',
@@ -538,4 +538,9 @@ return array(
     'This project is private' => 'Ce projet est privé',
     'Type here to create a new sub-task' => 'Créer une sous-tâche en écrivant le titre ici',
     'Add' => 'Ajouter',
+    'Estimated time: %s hours' => 'Temps estimé: %s hours',
+    'Time spent: %s hours' => 'Temps passé : %s heures',
+    'Started on %B %e, %Y' => 'Commençé le %d/%m/%Y',
+    'Start date' => 'Date de début',
+    'Time estimated' => 'Temps estimé',
 );
diff --git a/app/Locales/it_IT/translations.php b/app/Locales/it_IT/translations.php
index a79468720..9f532438e 100644
--- a/app/Locales/it_IT/translations.php
+++ b/app/Locales/it_IT/translations.php
@@ -349,9 +349,9 @@ return array(
     'estimated' => 'stimate',
     'Sub-Tasks' => 'Sotto-compiti',
     'Add a sub-task' => 'Aggiungere un sotto-compito',
-    'Original Estimate' => 'Stima originale',
+    'Original estimate' => 'Stima originale',
     'Create another sub-task' => 'Creare un altro sotto-compito',
-    'Time Spent' => 'Tempo Trascorso',
+    'Time spent' => 'Tempo Trascorso',
     'Edit a sub-task' => 'Modificare un sotto-compito',
     'Remove a sub-task' => 'Cancellare un sotto-compito',
     'The time must be a numeric value' => 'Il tempo deve essere un valore numerico',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Locales/pl_PL/translations.php b/app/Locales/pl_PL/translations.php
index d2eff65dd..f2e96bb6b 100644
--- a/app/Locales/pl_PL/translations.php
+++ b/app/Locales/pl_PL/translations.php
@@ -349,9 +349,9 @@ return array(
     // 'estimated' => '',
     // 'Sub-Tasks' => '',
     // 'Add a sub-task' => '',
-    // 'Original Estimate' => '',
+    // 'Original estimate' => '',
     // 'Create another sub-task' => '',
-    // 'Time Spent' => '',
+    // 'Time spent' => '',
     // 'Edit a sub-task' => '',
     // 'Remove a sub-task' => '',
     // 'The time must be a numeric value' => '',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Locales/pt_BR/translations.php b/app/Locales/pt_BR/translations.php
index 2093af95e..3f2083613 100644
--- a/app/Locales/pt_BR/translations.php
+++ b/app/Locales/pt_BR/translations.php
@@ -349,9 +349,9 @@ return array(
     'estimated' => 'estimada',
     'Sub-Tasks' => 'Sub-tarefas',
     'Add a sub-task' => 'Adicionar uma sub-tarefa',
-    'Original Estimate' => 'Estimativa original',
+    'Original estimate' => 'Estimativa original',
     'Create another sub-task' => 'Criar uma outra sub-tarefa',
-    'Time Spent' => 'Tempo gasto',
+    'Time spent' => 'Tempo gasto',
     'Edit a sub-task' => 'Editar uma sub-tarefa',
     'Remove a sub-task' => 'Remover uma sub-tarefa',
     'The time must be a numeric value' => 'O tempo deve ser um valor numérico',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Locales/ru_RU/translations.php b/app/Locales/ru_RU/translations.php
index 12a5bfe69..5c634184e 100644
--- a/app/Locales/ru_RU/translations.php
+++ b/app/Locales/ru_RU/translations.php
@@ -349,9 +349,9 @@ return array(
     'estimated' => 'расчетное',
     'Sub-Tasks' => 'Подзадачи',
     'Add a sub-task' => 'Добавить подзадачу',
-    'Original Estimate' => 'Начальная оценка',
+    'Original estimate' => 'Начальная оценка',
     'Create another sub-task' => 'Создать другую подзадачу',
-    'Time Spent' => 'Времени затрачено',
+    'Time spent' => 'Времени затрачено',
     'Edit a sub-task' => 'Изменить подзадачу',
     'Remove a sub-task' => 'Удалить подзадачу',
     'The time must be a numeric value' => 'Время должно быть числом!',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Locales/sv_SE/translations.php b/app/Locales/sv_SE/translations.php
index 96e4530d8..a96b6c9aa 100644
--- a/app/Locales/sv_SE/translations.php
+++ b/app/Locales/sv_SE/translations.php
@@ -349,9 +349,9 @@ return array(
     'estimated' => 'uppskattat',
     'Sub-Tasks' => 'Deluppgifter',
     'Add a sub-task' => 'Lägg till deluppgift',
-    'Original Estimate' => 'Ursprunglig uppskattning',
+    'Original estimate' => 'Ursprunglig uppskattning',
     'Create another sub-task' => 'Skapa en till deluppgift',
-    'Time Spent' => 'Nedlagd tid',
+    'Time spent' => 'Nedlagd tid',
     'Edit a sub-task' => 'Ändra en deluppgift',
     'Remove a sub-task' => 'Ta bort en deluppgift',
     'The time must be a numeric value' => 'Tiden måste ha ett numeriskt värde',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Locales/zh_CN/translations.php b/app/Locales/zh_CN/translations.php
index c921eb479..ea7183c7e 100644
--- a/app/Locales/zh_CN/translations.php
+++ b/app/Locales/zh_CN/translations.php
@@ -349,9 +349,9 @@ return array(
     // 'estimated' => '',
     // 'Sub-Tasks' => '',
     'Add a sub-task' => '添加一个子任务',
-    'Original Estimate' => '初步预计耗时',
+    'Original estimate' => '初步预计耗时',
     'Create another sub-task' => '创建另一个子任务',
-    // 'Time Spent' => '',
+    // 'Time spent' => '',
     // 'Edit a sub-task' => '',
     // 'Remove a sub-task' => '',
     // 'The time must be a numeric value' => '',
@@ -538,4 +538,9 @@ return array(
     // 'This project is private' => '',
     // 'Type here to create a new sub-task' => '',
     // 'Add' => '',
+    // 'Estimated time: %s hours' => '',
+    // 'Time spent: %s hours' => '',
+    // 'Started on %B %e, %Y' => '',
+    // 'Start date' => '',
+    // 'Time estimated' => '',
 );
diff --git a/app/Model/Base.php b/app/Model/Base.php
index 2b13e8150..ea4afc075 100644
--- a/app/Model/Base.php
+++ b/app/Model/Base.php
@@ -34,6 +34,7 @@ use PicoDb\Database;
  * @property \Model\TaskExport         $taskExport
  * @property \Model\TaskHistory        $taskHistory
  * @property \Model\TaskValidator      $taskValidator
+ * @property \Model\TimeTracking       $timeTracking
  * @property \Model\User               $user
  * @property \Model\Webhook            $webhook
  */
diff --git a/app/Model/DateParser.php b/app/Model/DateParser.php
index 88e676865..38265f984 100644
--- a/app/Model/DateParser.php
+++ b/app/Model/DateParser.php
@@ -97,4 +97,46 @@ class DateParser extends Base
     {
         return mktime(0, 0, 0, date('m', $timestamp), date('d', $timestamp), date('Y', $timestamp));
     }
+
+    /**
+     * Format date (form display)
+     *
+     * @access public
+     * @param  array    $values   Database values
+     * @param  array    $fields   Date fields
+     * @param  string   $format   Date format
+     */
+    public function format(array &$values, array $fields, $format = '')
+    {
+        if ($format === '') {
+            $format = $this->config->get('application_date_format');
+        }
+
+        foreach ($fields as $field) {
+
+            if (! empty($values[$field])) {
+                $values[$field] = date($format, $values[$field]);
+            }
+            else {
+                $values[$field] = '';
+            }
+        }
+    }
+
+    /**
+     * Convert date (form input data)
+     *
+     * @access public
+     * @param  array    $values   Database values
+     * @param  array    $fields   Date fields
+     */
+    public function convert(array &$values, array $fields)
+    {
+        foreach ($fields as $field) {
+
+            if (! empty($values[$field]) && ! is_numeric($values[$field])) {
+                $values[$field] = $this->getTimestamp($values[$field]);
+            }
+        }
+    }
 }
diff --git a/app/Model/SubTask.php b/app/Model/SubTask.php
index 0126030a2..886ad1f3f 100644
--- a/app/Model/SubTask.php
+++ b/app/Model/SubTask.php
@@ -82,6 +82,7 @@ class SubTask extends Base
                              ->eq('task_id', $task_id)
                              ->columns(self::TABLE.'.*', User::TABLE.'.username', User::TABLE.'.name')
                              ->join(User::TABLE, 'id', 'user_id')
+                             ->asc(self::TABLE.'.id')
                              ->findAll();
 
         foreach ($subtasks as &$subtask) {
diff --git a/app/Model/Task.php b/app/Model/Task.php
index 54dc0a2f5..fe7bbdcdf 100644
--- a/app/Model/Task.php
+++ b/app/Model/Task.php
@@ -89,6 +89,9 @@ class Task extends Base
             tasks.date_completed,
             tasks.date_modification,
             tasks.date_due,
+            tasks.date_started,
+            tasks.time_estimated,
+            tasks.time_spent,
             tasks.color_id,
             tasks.project_id,
             tasks.column_id,
@@ -363,12 +366,9 @@ class Task extends Base
      */
     public function prepare(array &$values)
     {
-        if (! empty($values['date_due']) && ! is_numeric($values['date_due'])) {
-            $values['date_due'] = $this->dateParser->getTimestamp($values['date_due']);
-        }
-
+        $this->dateParser->convert($values, array('date_due', 'date_started'));
         $this->removeFields($values, array('another_task', 'id'));
-        $this->resetFields($values, array('date_due', 'score', 'category_id'));
+        $this->resetFields($values, array('date_due', 'date_started', 'score', 'category_id', 'time_estimated', 'time_spent'));
         $this->convertIntegerFields($values, array('is_active'));
     }
 
diff --git a/app/Model/TaskExport.php b/app/Model/TaskExport.php
index 815f5997e..b929823e9 100644
--- a/app/Model/TaskExport.php
+++ b/app/Model/TaskExport.php
@@ -27,7 +27,7 @@ class TaskExport extends Base
         $results = array($this->getColumns());
 
         foreach ($tasks as &$task) {
-            $results[] = array_values($this->formatOutput($task));
+            $results[] = array_values($this->format($task));
         }
 
         return $results;
@@ -60,7 +60,10 @@ class TaskExport extends Base
             tasks.title,
             tasks.date_creation,
             tasks.date_modification,
-            tasks.date_completed
+            tasks.date_completed,
+            tasks.date_started,
+            tasks.time_estimated,
+            tasks.time_spent
             FROM tasks
             LEFT JOIN users ON users.id = tasks.owner_id
             LEFT JOIN users AS creators ON creators.id = tasks.creator_id
@@ -89,16 +92,14 @@ class TaskExport extends Base
      * @param  array     $task    Task properties
      * @return array
      */
-    public function formatOutput(array &$task)
+    public function format(array &$task)
     {
         $colors = $this->color->getList();
-        $task['score'] = $task['score'] ?: '';
+
         $task['is_active'] = $task['is_active'] == Task::STATUS_OPEN ? e('Open') : e('Closed');
         $task['color_id'] = $colors[$task['color_id']];
-        $task['date_creation'] = date('Y-m-d', $task['date_creation']);
-        $task['date_due'] = $task['date_due'] ? date('Y-m-d', $task['date_due']) : '';
-        $task['date_modification'] = $task['date_modification'] ? date('Y-m-d', $task['date_modification']) : '';
-        $task['date_completed'] = $task['date_completed'] ? date('Y-m-d', $task['date_completed']) : '';
+
+        $this->dateParser->format($task, array('date_due', 'date_modification', 'date_creation', 'date_started', 'date_completed'), 'Y-m-d');
 
         return $task;
     }
@@ -127,6 +128,9 @@ class TaskExport extends Base
             e('Creation date'),
             e('Modification date'),
             e('Completion date'),
+            e('Start date'),
+            e('Time estimated'),
+            e('Time spent'),
         );
     }
 }
diff --git a/app/Model/TaskValidator.php b/app/Model/TaskValidator.php
index 1c7b0b14e..816008cf1 100644
--- a/app/Model/TaskValidator.php
+++ b/app/Model/TaskValidator.php
@@ -31,6 +31,9 @@ class TaskValidator extends Base
             new Validators\Integer('category_id', t('This value must be an integer')),
             new Validators\MaxLength('title', t('The maximum length is %d characters', 200), 200),
             new Validators\Date('date_due', t('Invalid date'), $this->dateParser->getDateFormats()),
+            new Validators\Date('date_started', t('Invalid date'), $this->dateParser->getDateFormats()),
+            new Validators\Numeric('time_spent', t('This value must be numeric')),
+            new Validators\Numeric('time_estimated', t('This value must be numeric')),
         );
     }
 
@@ -189,4 +192,25 @@ class TaskValidator extends Base
             $v->getErrors()
         );
     }
+
+    /**
+     * Validate time tracking modification (form)
+     *
+     * @access public
+     * @param  array   $values           Form values
+     * @return array   $valid, $errors   [0] = Success or not, [1] = List of errors
+     */
+    public function validateTimeModification(array $values)
+    {
+        $rules = array(
+            new Validators\Required('id', t('The id is required')),
+        );
+
+        $v = new Validator($values, array_merge($rules, $this->commonValidationRules()));
+
+        return array(
+            $v->execute(),
+            $v->getErrors()
+        );
+    }
 }
diff --git a/app/Model/TimeTracking.php b/app/Model/TimeTracking.php
new file mode 100644
index 000000000..4ddddf124
--- /dev/null
+++ b/app/Model/TimeTracking.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Model;
+
+/**
+ * Time tracking model
+ *
+ * @package  model
+ * @author   Frederic Guillot
+ */
+class TimeTracking extends Base
+{
+    /**
+     * Calculate time metrics for a task
+     *
+     * Use subtasks time metrics if not empty otherwise return task time metrics
+     *
+     * @access public
+     * @param  array    $task        Task properties
+     * @param  array    $subtasks    Subtasks list
+     * @return array
+     */
+    public function getTaskTimesheet(array $task, array $subtasks)
+    {
+        $timesheet = array(
+            'time_spent' => 0,
+            'time_estimated' => 0,
+            'time_remaining' => 0,
+        );
+
+        foreach ($subtasks as &$subtask) {
+            $timesheet['time_estimated'] += $subtask['time_estimated'];
+            $timesheet['time_spent'] += $subtask['time_spent'];
+        }
+
+        if ($timesheet['time_estimated'] == 0 && $timesheet['time_spent'] == 0) {
+            $timesheet['time_estimated'] = $task['time_estimated'];
+            $timesheet['time_spent'] = $task['time_spent'];
+        }
+
+        $timesheet['time_remaining'] = $timesheet['time_estimated'] - $timesheet['time_spent'];
+
+        return $timesheet;
+    }
+}
diff --git a/app/Schema/Mysql.php b/app/Schema/Mysql.php
index c7293a434..7a0b2cd14 100644
--- a/app/Schema/Mysql.php
+++ b/app/Schema/Mysql.php
@@ -5,7 +5,17 @@ namespace Schema;
 use PDO;
 use Core\Security;
 
-const VERSION = 31;
+const VERSION = 32;
+
+function version_32($pdo)
+{
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN date_started INTEGER");
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN time_spent FLOAT DEFAULT 0");
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN time_estimated FLOAT DEFAULT 0");
+
+    $pdo->exec("ALTER TABLE task_has_subtasks MODIFY time_estimated FLOAT");
+    $pdo->exec("ALTER TABLE task_has_subtasks MODIFY time_spent FLOAT");
+}
 
 function version_31($pdo)
 {
diff --git a/app/Schema/Postgres.php b/app/Schema/Postgres.php
index fe2cce541..e42e8e72c 100644
--- a/app/Schema/Postgres.php
+++ b/app/Schema/Postgres.php
@@ -5,7 +5,17 @@ namespace Schema;
 use PDO;
 use Core\Security;
 
-const VERSION = 12;
+const VERSION = 13;
+
+function version_13($pdo)
+{
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN date_started INTEGER");
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN time_spent FLOAT DEFAULT 0");
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN time_estimated FLOAT DEFAULT 0");
+
+    $pdo->exec("ALTER TABLE task_has_subtasks ALTER COLUMN time_estimated TYPE FLOAT");
+    $pdo->exec("ALTER TABLE task_has_subtasks ALTER COLUMN time_spent TYPE FLOAT");
+}
 
 function version_12($pdo)
 {
diff --git a/app/Schema/Sqlite.php b/app/Schema/Sqlite.php
index cefe8ab5f..45a6fb22b 100644
--- a/app/Schema/Sqlite.php
+++ b/app/Schema/Sqlite.php
@@ -5,7 +5,14 @@ namespace Schema;
 use Core\Security;
 use PDO;
 
-const VERSION = 31;
+const VERSION = 32;
+
+function version_32($pdo)
+{
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN date_started INTEGER");
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN time_spent FLOAT DEFAULT 0");
+    $pdo->exec("ALTER TABLE tasks ADD COLUMN time_estimated FLOAT DEFAULT 0");
+}
 
 function version_31($pdo)
 {
@@ -169,8 +176,8 @@ function version_18($pdo)
             id INTEGER PRIMARY KEY,
             title TEXT COLLATE NOCASE,
             status INTEGER DEFAULT 0,
-            time_estimated INTEGER DEFAULT 0,
-            time_spent INTEGER DEFAULT 0,
+            time_estimated NUMERIC DEFAULT 0,
+            time_spent NUMERIC DEFAULT 0,
             task_id INTEGER NOT NULL,
             user_id INTEGER,
             FOREIGN KEY(task_id) REFERENCES tasks(id) ON DELETE CASCADE
diff --git a/app/Templates/file_show.php b/app/Templates/file_show.php
index b570de2dc..3832a0f5f 100644
--- a/app/Templates/file_show.php
+++ b/app/Templates/file_show.php
@@ -1,17 +1,23 @@
-<div class="page-header">
-    <h2><?= t('Attachments') ?></h2>
-</div>
+<?php if (! empty($files)): ?>
+<div id="attachments" class="task-show-section">
 
-<ul class="task-show-files">
-<?php foreach ($files as $file): ?>
-    <li>
-        <a href="?controller=file&amp;action=download&amp;file_id=<?= $file['id'] ?>&amp;task_id=<?= $task['id'] ?>"><?= Helper\escape($file['name']) ?></a>
-        <span class="task-show-file-actions">
-            <?php if ($file['is_image']): ?>
-                <a href="?controller=file&amp;action=open&amp;file_id=<?= $file['id'] ?>&amp;task_id=<?= $task['id'] ?>" class="file-popover"><?= t('open') ?></a>,
-            <?php endif ?>
-            <a href="?controller=file&amp;action=confirm&amp;file_id=<?= $file['id'] ?>&amp;task_id=<?= $task['id'] ?>"><?= t('remove') ?></a>
-        </span>
-    </li>
-<?php endforeach ?>
-</ul>
\ No newline at end of file
+    <div class="page-header">
+        <h2><?= t('Attachments') ?></h2>
+    </div>
+
+    <ul class="task-show-files">
+    <?php foreach ($files as $file): ?>
+        <li>
+            <a href="?controller=file&amp;action=download&amp;file_id=<?= $file['id'] ?>&amp;task_id=<?= $task['id'] ?>"><?= Helper\escape($file['name']) ?></a>
+            <span class="task-show-file-actions">
+                <?php if ($file['is_image']): ?>
+                    <a href="?controller=file&amp;action=open&amp;file_id=<?= $file['id'] ?>&amp;task_id=<?= $task['id'] ?>" class="file-popover"><?= t('open') ?></a>,
+                <?php endif ?>
+                <a href="?controller=file&amp;action=confirm&amp;file_id=<?= $file['id'] ?>&amp;task_id=<?= $task['id'] ?>"><?= t('remove') ?></a>
+            </span>
+        </li>
+    <?php endforeach ?>
+    </ul>
+
+</div>
+<?php endif ?>
\ No newline at end of file
diff --git a/app/Templates/subtask_create.php b/app/Templates/subtask_create.php
index f1b27ab98..c8ee556bb 100644
--- a/app/Templates/subtask_create.php
+++ b/app/Templates/subtask_create.php
@@ -14,7 +14,7 @@
     <?= Helper\form_label(t('Assignee'), 'user_id') ?>
     <?= Helper\form_select('user_id', $users_list, $values, $errors) ?><br/>
 
-    <?= Helper\form_label(t('Original Estimate'), 'time_estimated') ?>
+    <?= Helper\form_label(t('Original estimate'), 'time_estimated') ?>
     <?= Helper\form_numeric('time_estimated', $values, $errors) ?> <?= t('hours') ?><br/>
 
     <?= Helper\form_checkbox('another_subtask', t('Create another sub-task'), 1, isset($values['another_subtask']) && $values['another_subtask'] == 1) ?>
diff --git a/app/Templates/subtask_edit.php b/app/Templates/subtask_edit.php
index fc65d3b3b..91690d0a7 100644
--- a/app/Templates/subtask_edit.php
+++ b/app/Templates/subtask_edit.php
@@ -18,10 +18,10 @@
     <?= Helper\form_label(t('Assignee'), 'user_id') ?>
     <?= Helper\form_select('user_id', $users_list, $values, $errors) ?><br/>
 
-    <?= Helper\form_label(t('Original Estimate'), 'time_estimated') ?>
+    <?= Helper\form_label(t('Original estimate'), 'time_estimated') ?>
     <?= Helper\form_numeric('time_estimated', $values, $errors) ?> <?= t('hours') ?><br/>
 
-    <?= Helper\form_label(t('Time Spent'), 'time_spent') ?>
+    <?= Helper\form_label(t('Time spent'), 'time_spent') ?>
     <?= Helper\form_numeric('time_spent', $values, $errors) ?> <?= t('hours') ?><br/>
 
     <div class="form-actions">
diff --git a/app/Templates/subtask_show.php b/app/Templates/subtask_show.php
index 112262bd9..f1b0466f8 100644
--- a/app/Templates/subtask_show.php
+++ b/app/Templates/subtask_show.php
@@ -5,14 +5,6 @@
         <h2><?= t('Sub-Tasks') ?></h2>
     </div>
 
-    <?php
-
-    $total_spent = 0;
-    $total_estimated = 0;
-    $total_remaining = 0;
-
-    ?>
-
     <table class="subtasks-table">
         <tr>
             <th width="40%"><?= t('Title') ?></th>
@@ -64,11 +56,6 @@
                 </td>
             <?php endif ?>
         </tr>
-            <?php
-                $total_estimated += $subtask['time_estimated'];
-                $total_spent += $subtask['time_spent'];
-                $total_remaining = $total_estimated - $total_spent;
-            ?>
         <?php endforeach ?>
     </table>
 
@@ -81,14 +68,5 @@
         </form>
     <?php endif ?>
 
-    <div class="subtasks-time-tracking">
-        <h4><?= t('Time tracking') ?></h4>
-        <ul>
-            <li><?= t('Estimate:') ?> <strong><?= Helper\escape($total_estimated) ?></strong> <?= t('hours') ?></li>
-            <li><?= t('Spent:') ?> <strong><?= Helper\escape($total_spent) ?></strong> <?= t('hours') ?></li>
-            <li><?= t('Remaining:') ?> <strong><?= Helper\escape($total_remaining > 0 ? $total_remaining : 0) ?></strong> <?= t('hours') ?></li>
-        </ul>
-    </div>
-
 </div>
 <?php endif ?>
diff --git a/app/Templates/task_details.php b/app/Templates/task_details.php
index 8766beace..a4fdf6ceb 100644
--- a/app/Templates/task_details.php
+++ b/app/Templates/task_details.php
@@ -22,11 +22,26 @@
             <?= dt('Completed on %B %e, %Y at %k:%M %p', $task['date_completed']) ?>
         </li>
         <?php endif ?>
+        <?php if ($task['date_started']): ?>
+        <li>
+            <?= dt('Started on %B %e, %Y', $task['date_started']) ?>
+        </li>
+        <?php endif ?>
         <?php if ($task['date_due']): ?>
         <li>
             <strong><?= dt('Must be done before %B %e, %Y', $task['date_due']) ?></strong>
         </li>
         <?php endif ?>
+        <?php if ($task['time_estimated']): ?>
+        <li>
+            <?= t('Estimated time: %s hours', $task['time_estimated']) ?>
+        </li>
+        <?php endif ?>
+        <?php if ($task['time_spent']): ?>
+        <li>
+            <?= t('Time spent: %s hours', $task['time_spent']) ?>
+        </li>
+        <?php endif ?>
         <?php if ($task['creator_username']): ?>
         <li>
             <?= t('Created by %s', $task['creator_name'] ?: $task['creator_username']) ?>
diff --git a/app/Templates/task_new.php b/app/Templates/task_new.php
index 867bcbc9c..511421650 100644
--- a/app/Templates/task_new.php
+++ b/app/Templates/task_new.php
@@ -38,6 +38,9 @@
             <?= Helper\form_label(t('Complexity'), 'score') ?>
             <?= Helper\form_number('score', $values, $errors) ?><br/>
 
+            <?= Helper\form_label(t('Original estimate'), 'time_estimated') ?>
+            <?= Helper\form_numeric('time_estimated', $values, $errors) ?> <?= t('hours') ?><br/>
+
             <?= Helper\form_label(t('Due Date'), 'date_due') ?>
             <?= Helper\form_text('date_due', $values, $errors, array('placeholder="'.Helper\in_list($date_format, $date_formats).'"'), 'form-date') ?><br/>
             <div class="form-help"><?= t('Others formats accepted: %s and %s', date('Y-m-d'), date('Y_m_d')) ?></div>
diff --git a/app/Templates/task_public.php b/app/Templates/task_public.php
index 4578b720d..bc4608d19 100644
--- a/app/Templates/task_public.php
+++ b/app/Templates/task_public.php
@@ -2,6 +2,8 @@
 
     <?= Helper\template('task_details', array('task' => $task, 'project' => $project)) ?>
 
+    <p class="align-right"><?= Helper\a(t('Back to the board'), 'board', 'readonly', array('token' => $project['token'])) ?></p>
+
     <?= Helper\template('task_show_description', array('task' => $task)) ?>
 
     <?= Helper\template('subtask_show', array('task' => $task, 'subtasks' => $subtasks, 'not_editable' => true)) ?>
diff --git a/app/Templates/task_show.php b/app/Templates/task_show.php
index ece4c57cf..0964a8f0f 100644
--- a/app/Templates/task_show.php
+++ b/app/Templates/task_show.php
@@ -1,14 +1,7 @@
-
 <?= Helper\template('task_details', array('task' => $task, 'project' => $project)) ?>
-
+<?= Helper\template('task_time', array('values' => $values, 'date_format' => $date_format, 'date_formats' => $date_formats)) ?>
 <?= Helper\template('task_show_description', array('task' => $task)) ?>
-
 <?= Helper\template('subtask_show', array('task' => $task, 'subtasks' => $subtasks)) ?>
-
-<?php if (! empty($files)): ?>
-<div id="attachments" class="task-show-section">
-    <?= Helper\template('file_show', array('task' => $task, 'files' => $files)) ?>
-</div>
-<?php endif ?>
-
-<?= Helper\template('task_comments', array('task' => $task, 'comments' => $comments)) ?>
+<?= Helper\template('task_timesheet', array('timesheet' => $timesheet)) ?>
+<?= Helper\template('file_show', array('task' => $task, 'files' => $files)) ?>
+<?= Helper\template('task_comments', array('task' => $task, 'comments' => $comments)) ?>
\ No newline at end of file
diff --git a/app/Templates/task_time.php b/app/Templates/task_time.php
new file mode 100644
index 000000000..11a76303b
--- /dev/null
+++ b/app/Templates/task_time.php
@@ -0,0 +1,15 @@
+<form method="post" action="<?= Helper\u('task', 'time', array('task_id' => $values['id'])) ?>" class="form-inline task-time-form" autocomplete="off">
+    <?= Helper\form_csrf() ?>
+    <?= Helper\form_hidden('id', $values) ?>
+
+    <?= Helper\form_label(t('Start date'), 'date_started') ?>
+    <?= Helper\form_text('date_started', $values, array(), array('placeholder="'.Helper\in_list($date_format, $date_formats).'"'), 'form-date') ?>
+
+    <?= Helper\form_label(t('Time estimated'), 'time_estimated') ?>
+    <?= Helper\form_numeric('time_estimated', $values, array(), array('placeholder="'.t('hours').'"')) ?>
+
+    <?= Helper\form_label(t('Time spent'), 'time_spent') ?>
+    <?= Helper\form_numeric('time_spent', $values, array(), array('placeholder="'.t('hours').'"')) ?>
+
+    <input type="submit" value="<?= t('Save') ?>" class="btn btn-blue"/>
+</form>
\ No newline at end of file
diff --git a/app/Templates/task_timesheet.php b/app/Templates/task_timesheet.php
new file mode 100644
index 000000000..cd0936578
--- /dev/null
+++ b/app/Templates/task_timesheet.php
@@ -0,0 +1,13 @@
+<?php if ($timesheet['time_estimated'] > 0 || $timesheet['time_spent'] > 0): ?>
+
+<div class="page-header">
+    <h2><?= t('Time tracking') ?></h2>
+</div>
+
+<ul class="listing">
+    <li><?= t('Estimate:') ?> <strong><?= Helper\escape($timesheet['time_estimated']) ?></strong> <?= t('hours') ?></li>
+    <li><?= t('Spent:') ?> <strong><?= Helper\escape($timesheet['time_spent']) ?></strong> <?= t('hours') ?></li>
+    <li><?= t('Remaining:') ?> <strong><?= Helper\escape($timesheet['time_remaining']) ?></strong> <?= t('hours') ?></li>
+</ul>
+
+<?php endif ?>
\ No newline at end of file
diff --git a/app/helpers.php b/app/helpers.php
index 1ab8586a8..622d0ce3c 100644
--- a/app/helpers.php
+++ b/app/helpers.php
@@ -589,4 +589,4 @@ function u($controller, $action, array $params = array(), $csrf = false)
     }
 
     return $html;
-}
\ No newline at end of file
+}
diff --git a/assets/css/app.css b/assets/css/app.css
index b4f8f6a6b..45b550a6a 100644
--- a/assets/css/app.css
+++ b/assets/css/app.css
@@ -26,6 +26,10 @@ body {
     text-rendering: optimizeLegibility;
 }
 
+.align-right {
+    text-align: right;
+}
+
 /* links */
 a {
     color: #3366CC;
@@ -841,6 +845,12 @@ a.task-board-nobody {
     margin-top: 10px;
 }
 
+.task-time-form {
+    margin-top: 10px;
+    margin-bottom: 25px;
+    padding: 3px;
+}
+
 /* comments */
 .comment {
     margin-bottom: 20px;
@@ -918,15 +928,6 @@ a.task-board-nobody {
     vertical-align: middle;
 }
 
-.subtasks-time-tracking h4 {
-    margin-bottom: 5px;
-}
-
-.subtasks-time-tracking li {
-    list-style-type: square;
-    margin-left: 30px;
-}
-
 /* markdown content */
 .markdown {
     line-height: 1.4em;
diff --git a/tests/functionals.mysql.xml b/tests/functionals.mysql.xml
index aa5b6ec1d..f667cafa1 100644
--- a/tests/functionals.mysql.xml
+++ b/tests/functionals.mysql.xml
@@ -5,7 +5,7 @@
         </testsuite>
     </testsuites>
     <php>
-        <const name="API_URL" value="http://localhost:8080/jsonrpc.php" />
+        <const name="API_URL" value="http://localhost:8000/jsonrpc.php" />
         <const name="API_KEY" value="19ffd9709d03ce50675c3a43d1c49c1ac207f4bc45f06c5b2701fbdf8929" />
         <const name="DB_DRIVER" value="mysql" />
         <const name="DB_NAME" value="kanboard" />
diff --git a/tests/functionals.postgres.xml b/tests/functionals.postgres.xml
index ecfe72ef8..38904d1a9 100644
--- a/tests/functionals.postgres.xml
+++ b/tests/functionals.postgres.xml
@@ -5,7 +5,7 @@
         </testsuite>
     </testsuites>
     <php>
-        <const name="API_URL" value="http://localhost:8080/jsonrpc.php" />
+        <const name="API_URL" value="http://localhost:8000/jsonrpc.php" />
         <const name="API_KEY" value="19ffd9709d03ce50675c3a43d1c49c1ac207f4bc45f06c5b2701fbdf8929" />
         <const name="DB_DRIVER" value="postgres" />
         <const name="DB_NAME" value="kanboard" />
diff --git a/tests/functionals.sqlite.xml b/tests/functionals.sqlite.xml
index 62aa94c37..bf5d41178 100644
--- a/tests/functionals.sqlite.xml
+++ b/tests/functionals.sqlite.xml
@@ -5,7 +5,7 @@
         </testsuite>
     </testsuites>
     <php>
-        <const name="API_URL" value="http://localhost:8080/jsonrpc.php" />
+        <const name="API_URL" value="http://localhost:8000/jsonrpc.php" />
         <const name="API_KEY" value="19ffd9709d03ce50675c3a43d1c49c1ac207f4bc45f06c5b2701fbdf8929" />
         <const name="DB_DRIVER" value="sqlite" />
         <const name="DB_FILENAME" value="data/db.sqlite" />
diff --git a/tests/units.postgres.xml b/tests/units.postgres.xml
index 0583c7f83..22e09c03a 100644
--- a/tests/units.postgres.xml
+++ b/tests/units.postgres.xml
@@ -7,6 +7,7 @@
     <php>
         <const name="DB_DRIVER" value="postgres" />
         <const name="DB_USERNAME" value="postgres" />
+        <const name="DB_PASSWORD" value="postgres" />
         <const name="DB_NAME" value="kanboard_unit_test" />
     </php>
 </phpunit>
\ No newline at end of file
diff --git a/tests/units/TimeTrackingTest.php b/tests/units/TimeTrackingTest.php
new file mode 100644
index 000000000..50d5cb537
--- /dev/null
+++ b/tests/units/TimeTrackingTest.php
@@ -0,0 +1,44 @@
+<?php
+
+require_once __DIR__.'/Base.php';
+
+use Model\SubTask;
+use Model\Task;
+use Model\Project;
+use Model\TimeTracking;
+
+class TimeTrackingTest extends Base
+{
+    public function testCalculateTime()
+    {
+        $t = new Task($this->registry);
+        $p = new Project($this->registry);
+        $s = new SubTask($this->registry);
+        $ts = new TimeTracking($this->registry);
+
+        $this->assertEquals(1, $p->create(array('name' => 'Project #1')));
+        $this->assertEquals(1, $t->create(array('title' => 'Task #1', 'project_id' => 1, 'time_estimated' => 4.5)));
+        $this->assertTrue($t->update(array('id' => 1, 'time_spent' => 3.5)));
+
+        $task = $t->getById(1);
+        $this->assertNotEmpty($task);
+        $this->assertEquals(4.5, $task['time_estimated']);
+        $this->assertEquals(3.5, $task['time_spent']);
+
+        $timesheet = $ts->getTaskTimesheet($task, array());
+        $this->assertNotEmpty($timesheet);
+        $this->assertEquals(4.5, $timesheet['time_estimated']);
+        $this->assertEquals(3.5, $timesheet['time_spent']);
+        $this->assertEquals(1, $timesheet['time_remaining']);
+
+        // Subtasks calculation
+        $this->assertEquals(1, $s->create(array('title' => 'subtask #1', 'task_id' => 1, 'time_estimated' => 5.5, 'time_spent' => 3)));
+        $this->assertEquals(2, $s->create(array('title' => 'subtask #2', 'task_id' => 1, 'time_estimated' => '', 'time_spent' => 4)));
+
+        $timesheet = $ts->getTaskTimesheet($task, $s->getAll(1));
+        $this->assertNotEmpty($timesheet);
+        $this->assertEquals(5.5, $timesheet['time_estimated']);
+        $this->assertEquals(7, $timesheet['time_spent']);
+        $this->assertEquals(-1.5, $timesheet['time_remaining']);
+    }
+}