diff --git a/tests/test_viewport_parsing.py b/tests/test_viewport_parsing.py
new file mode 100644
index 0000000..7a4f9ff
--- /dev/null
+++ b/tests/test_viewport_parsing.py
@@ -0,0 +1,102 @@
+# -*- coding: utf-8 -*-
+from datetime import datetime
+import sys
+
+# Mock vim to test vim-nonrelated functions
+class MockVim(object):
+
+    def eval(*args, **kwargs):
+        return 42
+
+    class current(object):
+        buffer = ['']
+
+    vars = dict(taskwiki_sort_orders=dict(T='extra'))
+    warriors = dict()
+
+mockvim = MockVim()
+sys.modules['vim'] = mockvim
+
+from taskwiki.viewport import ViewPort
+from taskwiki.viewport import DEFAULT_SORT_ORDER, DEFAULT_VIEWPORT_VIRTUAL_TAGS
+
+class MockCache(object):
+    warriors = {'default': 'default', 'T': 'extra'}
+
+cache = MockCache()
+
+class TestParsingVimwikiTask(object):
+    def test_simple(self):
+        mockvim.current.buffer[0] = "== Test | project:Home =="
+        port = ViewPort.from_line(0, cache)
+
+        assert port.taskfilter == DEFAULT_VIEWPORT_VIRTUAL_TAGS + ["project:Home"]
+        assert port.name == "Test"
+        assert port.sort == DEFAULT_SORT_ORDER
+        assert port.tw == 'default'
+
+    def test_defaults(self):
+        mockvim.current.buffer[0] = "== Test | project:Home | +home =="
+        port = ViewPort.from_line(0, cache)
+
+        assert port.taskfilter == DEFAULT_VIEWPORT_VIRTUAL_TAGS + ["project:Home"]
+        assert port.name == "Test"
+        assert port.defaults == {'project':'Home', 'tags':['home']}
+        assert port.sort == DEFAULT_SORT_ORDER
+        assert port.tw == 'default'
+
+    def test_different_tw(self):
+        mockvim.current.buffer[0] = "== Test | project:Home #T =="
+        port = ViewPort.from_line(0, cache)
+
+        assert port.taskfilter == DEFAULT_VIEWPORT_VIRTUAL_TAGS + ["project:Home"]
+        assert port.name == "Test"
+        assert port.sort == DEFAULT_SORT_ORDER
+        assert port.tw == 'extra'
+
+    def test_different_sort(self):
+        mockvim.current.buffer[0] = "== Test | project:Home $T =="
+        port = ViewPort.from_line(0, cache)
+
+        assert port.taskfilter == DEFAULT_VIEWPORT_VIRTUAL_TAGS + ["project:Home"]
+        assert port.name == "Test"
+        assert port.sort == 'extra'
+        assert port.tw == 'default'
+
+    def test_different_sort_with_complex_filter(self):
+        mockvim.current.buffer[0] = "== Test | project:Home or project:Work $T =="
+        port = ViewPort.from_line(0, cache)
+
+        assert port.taskfilter == DEFAULT_VIEWPORT_VIRTUAL_TAGS + ["project:Home", "or", "project:Work"]
+        assert port.name == "Test"
+        assert port.sort == 'extra'
+        assert port.tw == 'default'
+
+    def test_different_sort_tw(self):
+        mockvim.current.buffer[0] = "== Test | project:Home #T $T =="
+        port = ViewPort.from_line(0, cache)
+
+        assert port.taskfilter == DEFAULT_VIEWPORT_VIRTUAL_TAGS + ["project:Home"]
+        assert port.name == "Test"
+        assert port.sort == 'extra'
+        assert port.tw == 'extra'
+
+    def test_defaults_different_tw(self):
+        mockvim.current.buffer[0] = "== Test | project:Home | +home #T =="
+        port = ViewPort.from_line(0, cache)
+
+        assert port.taskfilter == DEFAULT_VIEWPORT_VIRTUAL_TAGS + ["project:Home"]
+        assert port.name == "Test"
+        assert port.defaults == {'project':'Home', 'tags':['home']}
+        assert port.sort == DEFAULT_SORT_ORDER
+        assert port.tw == 'extra'
+
+    def test_defaults_different_tw_sort(self):
+        mockvim.current.buffer[0] = "== Test | project:Home | +home #T $T =="
+        port = ViewPort.from_line(0, cache)
+
+        assert port.taskfilter == DEFAULT_VIEWPORT_VIRTUAL_TAGS + ["project:Home"]
+        assert port.name == "Test"
+        assert port.defaults == {'project':'Home', 'tags':['home']}
+        assert port.sort == 'extra'
+        assert port.tw == 'extra'