Adding families()/regions() methods to HappyBase table.

Also adding __repr__. __repr__ is complete, but the other two
are just interfaces. regions() will never be implemented because
it has no equivalent in Cloud Bigtable.

gcloud_bigtable/happybase/table.py

@@ -79,3 +79,27 @@ class Table(object):
     def __init__(self, name, connection):
         self.name = name
         self.connection = connection
+
+    def __repr__(self):
+        return '<table.Table name=%r>' % (self.name,)
+
+    def families(self):
+        """Retrieve the column families for this table.
+
+        :raises: :class:`NotImplementedError <exceptions.NotImplementedError>`
+                 temporarily until the method is implemented.
+        """
+        raise NotImplementedError('Temporarily not implemented.')
+
+    def regions(self):
+        """Retrieve the regions for this table.
+
+        Cloud Bigtable does not give information about how a table is laid
+        out in memory, so regions so this method does not work. It is
+        provided simply for compatibility.
+
+        :raises: :class:`NotImplementedError <exceptions.NotImplementedError>`
+                 always
+        """
+        raise NotImplementedError('The Cloud Bigtable API does not have a '
+                                  'concept of splitting a table into regions.')

gcloud_bigtable/happybase/test_table.py

@@ -53,3 +53,25 @@ def test_constructor(self):
         table = self._makeOne(name, connection)
         self.assertEqual(table.name, name)
         self.assertEqual(table.connection, connection)
+
+    def test___repr__(self):
+        name = 'table-name'
+        connection = object()
+        table = self._makeOne(name, connection)
+        self.assertEqual(repr(table), '<table.Table name=\'table-name\'>')
+
+    def test_families(self):
+        name = 'table-name'
+        connection = object()
+        table = self._makeOne(name, connection)
+
+        with self.assertRaises(NotImplementedError):
+            table.families()
+
+    def test_regions(self):
+        name = 'table-name'
+        connection = object()
+        table = self._makeOne(name, connection)
+
+        with self.assertRaises(NotImplementedError):
+            table.regions()