[robotframework] r3413 committed - Added is_comment and changed empty kw to be None instead of ''.

[robotframework]

Revision: 3413
Author: jprantan
Date: Mon May 24 04:48:47 2010
Log: Added is_comment and changed empty kw to be None instead of ''.
http://code.google.com/p/robotframework/source/detail?r=3413

Modified:
 /trunk/src/robot/parsing/model.py
 /trunk/utest/parsing/test_model.py

=======================================
--- /trunk/src/robot/parsing/model.py   Mon May 24 02:27:53 2010
+++ /trunk/src/robot/parsing/model.py   Mon May 24 04:48:47 2010
@@ -378,7 +378,7 @@
         try:
             self.keyword = content[len(self.assign)]
         except IndexError:
-            self.keyword = ''
+            self.keyword = None
         self.args = content[len(self.assign)+1:]
         self.comment = comment

@@ -390,3 +390,6 @@
                 break
             vars.append(item)
         return vars
+
+    def is_comment(self):
+        return not self.assign and not self.keyword and not self.args
=======================================
--- /trunk/utest/parsing/test_model.py  Mon May 24 02:27:53 2010
+++ /trunk/utest/parsing/test_model.py  Mon May 24 04:48:47 2010
@@ -260,7 +260,11 @@
         self._test(['${v1}=', '${v2}=', 'KW'], assign=['${v1}', '${v2}'])

     def test_assign_without_keyword(self):
-        self._test(['${v1}', '${v2}'], kw='', assign=['${v1}', '${v2}'])
+        self._test(['${v1}', '${v2}'], kw=None, assign=['${v1}', '${v2}'])
+
+    def test_is_comment(self):
+        assert_true(Step([], comment="comment").is_comment())
+        assert_false(Step(['KW'], comment="comment").is_comment())

     def _test(self, content, kw='KW', args=[], assign=[]):
         step = Step(content)