[tracker] Tests: More asserts and updated comments

[Ivan Frade <ifrade src gnome org>]

commit d7f7df0b44b0e884a6c881a41d510a7cb32f955f
Author: Ivan Frade <ivan frade nokia com>
Date:   Tue Feb 2 19:13:28 2010 +0200

    Tests: More asserts and updated comments

 tests/functional-tests/05-coalesce.py |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/tests/functional-tests/05-coalesce.py b/tests/functional-tests/05-coalesce.py
index a75fe3b..dfa0073 100644
--- a/tests/functional-tests/05-coalesce.py
+++ b/tests/functional-tests/05-coalesce.py
@@ -59,7 +59,7 @@ class TestCoalesce (unittest.TestCase):
     def test_coalesce_first_fine (self):
         """
         setUp: Insert a contact with only some text properties set
-        1. TEST: run a query with coalesce with the valid value in different positions
+        1. TEST: run a query with coalesce with the valid value in first position
         tearDown: Remove the test contact inserted
         """
 
@@ -73,13 +73,14 @@ class TestCoalesce (unittest.TestCase):
         }
         """ 
         results = self.resources.SparqlQuery (query)
+        assert len (results) == 1
         assert results[0][0] == "full name"
 
 
     def test_coalesce_second_fine (self):
         """
         setUp: Insert a contact with only some text properties set
-        1. TEST: run a query with coalesce with the valid value in different positions
+        1. TEST: run a query with coalesce. First property NULL, second fine
         tearDown: Remove the test contact inserted
         """
 
@@ -93,13 +94,14 @@ class TestCoalesce (unittest.TestCase):
         }
         """ 
         results = self.resources.SparqlQuery (query)
+        assert len (results) == 1
         assert results[0][0] == "family name"
 
 
     def test_coalesce_none_fine_default (self):
         """
         setUp: Insert a contact with only some text properties set
-        1. TEST: run a query with coalesce with the valid value in different positions
+        1. TEST: run a query with coalesce. all variables NULL, return default value
         tearDown: Remove the test contact inserted
         """
 
@@ -113,6 +115,7 @@ class TestCoalesce (unittest.TestCase):
         }
         """ 
         results = self.resources.SparqlQuery (query)
+        assert len (results) == 1
         assert results[0][0] == "test_coalesce"