Fix Pathname to render from end instead of beginning

2 files changed, 10 insertions, 5 deletions

diff --git a/ttystatus/pathname.py b/ttystatus/pathname.py
index bf5fe5a..0fbdbd7 100644
--- a/ttystatus/pathname.py
+++ b/ttystatus/pathname.py
@@ -31,8 +31,8 @@ class Pathname(ttystatus.Widget):
         self._key = key
         self.pathname = ''
 
-    def render(self, render):
-        return self.pathname
+    def render(self, width):
+        return self.pathname[-width:]
         
     def update(self, master):
         self.pathname = master.get(self._key, '')
diff --git a/ttystatus/pathname_tests.py b/ttystatus/pathname_tests.py
index 1191f43..70d6c1e 100644
--- a/ttystatus/pathname_tests.py
+++ b/ttystatus/pathname_tests.py
@@ -28,12 +28,17 @@ class PathnameTests(unittest.TestCase):
         self.assertFalse(self.w.static_width)
 
     def test_is_empty_initially(self):
-        self.assertEqual(self.w.render(0), '')
+        self.assertEqual(self.w.render(10), '')
         
     def test_updates(self):
         self.w.update({'foo': 'bar'})
-        self.assertEqual(self.w.render(0), 'bar')
+        self.assertEqual(self.w.render(10), 'bar')
 
     def test_handles_update_to_other_value(self):
         self.w.update({'other': 1})
-        self.assertEqual(self.w.render(0), '')
+        self.assertEqual(self.w.render(10), '')
+
+    def test_truncates_from_beginning(self):
+        self.w.update({'foo': '/this/is/a/path'})
+        self.assertEqual(self.w.render(6), 'a/path')
+