Add tests for list_format

Also add freezegun to dependencies -  we use it for mocking datetime
objects.

setup.py

@@ -44,7 +44,7 @@ setup(
         'ical': ['icalendar'],
         'prompt-toolkit': ['prompt-toolkit >= 0.53'],
         'edit-cmd-tests': ['mock'],
-        'test': ['green', 'coverage'],
+        'test': ['coverage', 'freezegun', 'green', ],
         'test:python_version!="3.2"': ['pylint'],
     },
     entry_points= {

test/data/ListFormat.txt

+(D) 2015-08-31 Bar @Context1 +Project2 due:2015-09-30 t:2015-09-29
+(Z) 2015-11-03 Lorem ipsum dolorem sit amet. Red @fox +jumped over the lazy:bar and jar due:2015-11-05 t:2015-11-04
+(C) 2015-07-12 Foo @Context2 Not@Context +Project1 Not+Project
+(C) Baz @Context1 +Project1 key:value
+Drink beer @ home id:1 p:2 ical:foobar
+x 2014-12-12 Completed but with date:2014-12-12

test/test_list_format.py

+# Topydo - A todo.txt client written in Python.
+# Copyright (C) 2014 - 2015 Bram Schoenmakers <me@bramschoenmakers.nl>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import unittest
+
+from collections import namedtuple
+from freezegun import freeze_time
+from six import u
+
+from test.command_testcase import CommandTest
+from test.facilities import load_file_to_todolist
+from topydo.commands.ListCommand import ListCommand
+from topydo.lib.Config import config
+
+# We're searching for 'mock'
+# pylint: disable=no-name-in-module
+try:
+    from unittest import mock
+except ImportError:
+    import mock
+
+class ListFormatTest(CommandTest):
+    def setUp(self):
+        super(ListFormatTest, self).setUp()
+        self.todolist = load_file_to_todolist("test/data/ListFormat.txt")
+        self.terminal_size = namedtuple('terminal_size', ['columns', 'lines'])
+
+    def test_list_format01(self):
+        config(p_overrides={('ls', 'list_format'): '|%I| %x %{(}p{)} %c %s %K'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| (D) 2015-08-31 Bar @Context1 +Project2 due:2015-09-30 t:2015-09-29
+|  2| (Z) 2015-11-03 Lorem ipsum dolorem sit amet. Red @fox +jumped over the and jar due:2015-11-05 lazy:bar t:2015-11-04
+|  3| (C) 2015-07-12 Foo @Context2 Not@Context +Project1 Not+Project
+|  4| (C) Baz @Context1 +Project1 key:value
+|  5| Drink beer @ home ical:foobar id:1 p:2
+|  6| x 2014-12-12 Completed but with date:2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    @mock.patch('topydo.lib.PrettyPrinterFilter.get_terminal_size')
+    def test_list_format02(self, mock_terminal_size):
+        mock_terminal_size.return_value = self.terminal_size(80, 25)
+
+        config(p_overrides={('ls', 'list_format'): '|%I| %x %{(}p{)} %c %S %K'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| (D) 2015-08-31 Bar @Context1 +Project2 due:2015-09-30 t:2015-09-29
+|  2| (Z) 2015-11-03 Lorem ipsum dolore... due:2015-11-05 lazy:bar t:2015-11-04
+|  3| (C) 2015-07-12 Foo @Context2 Not@Context +Project1 Not+Project
+|  4| (C) Baz @Context1 +Project1 key:value
+|  5| Drink beer @ home ical:foobar id:1 p:2
+|  6| x 2014-12-12 Completed but with date:2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    @mock.patch('topydo.lib.PrettyPrinterFilter.get_terminal_size')
+    def test_list_format03(self, mock_terminal_size):
+        mock_terminal_size.return_value = self.terminal_size(100, 25)
+
+        config(p_overrides={('ls', 'list_format'): '|%I| %x %{(}p{)} %c %S %K'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| (D) 2015-08-31 Bar @Context1 +Project2 due:2015-09-30 t:2015-09-29
+|  2| (Z) 2015-11-03 Lorem ipsum dolorem sit amet. Red @fox... due:2015-11-05 lazy:bar t:2015-11-04
+|  3| (C) 2015-07-12 Foo @Context2 Not@Context +Project1 Not+Project
+|  4| (C) Baz @Context1 +Project1 key:value
+|  5| Drink beer @ home ical:foobar id:1 p:2
+|  6| x 2014-12-12 Completed but with date:2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    @mock.patch('topydo.lib.PrettyPrinterFilter.get_terminal_size')
+    def test_list_format04(self, mock_terminal_size):
+        mock_terminal_size.return_value = self.terminal_size(100, 25)
+
+        config(p_overrides={('ls', 'list_format'): '|%I| %x %{(}p{)} %c %S	%K'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| (D) 2015-08-31 Bar @Context1 +Project2                            due:2015-09-30 t:2015-09-29
+|  2| (Z) 2015-11-03 Lorem ipsum dolorem sit amet. Red @fox... due:2015-11-05 lazy:bar t:2015-11-04
+|  3| (C) 2015-07-12 Foo @Context2 Not@Context +Project1 Not+Project
+|  4| (C) Baz @Context1 +Project1                                                         key:value
+|  5| Drink beer @ home                                                        ical:foobar id:1 p:2
+|  6| x 2014-12-12 Completed but with                                               date:2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    @mock.patch('topydo.lib.PrettyPrinterFilter.get_terminal_size')
+    def test_list_format05(self, mock_terminal_size):
+        mock_terminal_size.return_value = self.terminal_size(80, 25)
+
+        config(p_overrides={('ls', 'list_format'): '|%I| %x %{(}p{)} %c %S	%K'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| (D) 2015-08-31 Bar @Context1 +Project2        due:2015-09-30 t:2015-09-29
+|  2| (Z) 2015-11-03 Lorem ipsum dolore... due:2015-11-05 lazy:bar t:2015-11-04
+|  3| (C) 2015-07-12 Foo @Context2 Not@Context +Project1 Not+Project
+|  4| (C) Baz @Context1 +Project1                                     key:value
+|  5| Drink beer @ home                                    ical:foobar id:1 p:2
+|  6| x 2014-12-12 Completed but with                           date:2014-12-12
+"""
+
+    @freeze_time("2015, 11, 03")
+    @mock.patch('topydo.lib.PrettyPrinterFilter.get_terminal_size')
+    def test_list_format06(self, mock_terminal_size):
+        mock_terminal_size.return_value = self.terminal_size(100, 25)
+
+        config(p_overrides={('ls', 'list_format'): '|%I| %x %p %S %k	%{(}H{)}'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| D Bar @Context1 +Project2                (3 months ago, due a month ago, started a month ago)
+|  2| Z Lorem ipsum dolorem sit amet. Red @f... lazy:bar (just now, due in 2 days, starts in a day)
+|  3| C Foo @Context2 Not@Context +Project1 Not+Project                              (4 months ago)
+|  4| C Baz @Context1 +Project1 key:value
+|  5| Drink beer @ home
+|  6| x 2014-12-12 Completed but with date:2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    @freeze_time("2015, 11, 03")
+    @mock.patch('topydo.lib.PrettyPrinterFilter.get_terminal_size')
+    def test_list_format07(self, mock_terminal_size):
+        mock_terminal_size.return_value = self.terminal_size(100, 25)
+
+        config(p_overrides={('ls', 'list_format'): '|%I| %x %p %S %k	%{(}h{)}'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| D Bar @Context1 +Project2                              (due a month ago, started a month ago)
+|  2| Z Lorem ipsum dolorem sit amet. Red @fox +jumped... lazy:bar (due in 2 days, starts in a day)
+|  3| C Foo @Context2 Not@Context +Project1 Not+Project
+|  4| C Baz @Context1 +Project1 key:value
+|  5| Drink beer @ home
+|  6| x 2014-12-12 Completed but with date:2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    @freeze_time("2015, 11, 03")
+    @mock.patch('topydo.lib.PrettyPrinterFilter.get_terminal_size')
+    def test_list_format08(self, mock_terminal_size):
+        mock_terminal_size.return_value = self.terminal_size(100, 25)
+
+        config(p_overrides={('ls', 'list_format'): '%c %d %t %x'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""2015-08-31 2015-09-30 2015-09-29
+2015-11-03 2015-11-05 2015-11-04
+2015-07-12
+
+
+x 2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    @freeze_time("2015, 11, 03")
+    @mock.patch('topydo.lib.PrettyPrinterFilter.get_terminal_size')
+    def test_list_format09(self, mock_terminal_size):
+        mock_terminal_size.return_value = self.terminal_size(100, 25)
+
+        config(p_overrides={('ls', 'list_format'): '%C | %D | %T | %X'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""3 months ago | a month ago | a month ago |
+just now | in 2 days | in a day |
+4 months ago | | |
+| | |
+| | |
+| | | x 11 months ago
+"""
+        self.assertEqual(self.output, result)
+
+    def test_list_format10(self):
+        config(p_overrides={('ls', 'list_format'): '|%i| %k'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|1|
+|2| lazy:bar
+|3|
+|4| key:value
+|5|
+|6| date:2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    def test_list_format11(self):
+        config(p_overrides={('ls', 'list_format'): '|%I| %K'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| due:2015-09-30 t:2015-09-29
+|  2| due:2015-11-05 lazy:bar t:2015-11-04
+|  3|
+|  4| key:value
+|  5| ical:foobar id:1 p:2
+|  6| date:2014-12-12
+"""
+        self.assertEqual(self.output, result)
+
+    def test_list_format12(self):
+        config(p_overrides={('ls', 'list_format'): '|%I| %%'})
+        command = ListCommand(["-x"], self.todolist, self.out, self.error)
+        command.execute()
+
+        result = u"""|  1| %
+|  2| %
+|  3| %
+|  4| %
+|  5| %
+|  6| %
+"""
+        self.assertEqual(self.output, result)