From cf1048df72b845ef7fefd5ec5709f7d1b2c4df79 Mon Sep 17 00:00:00 2001
From: rcoh <rcoh@mit.edu>
Date: Sat, 12 Feb 2011 16:34:25 -0500
Subject: Added some new tests to BehaviorQuerySystem.py which demonstrate how
 to use it.  Fixed a bug in BQS.

---
 tests/TestBQS.py            | 30 ++++++++++++++++++++++++++----
 util/BehaviorQuerySystem.py |  2 +-
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/tests/TestBQS.py b/tests/TestBQS.py
index 8dc90b2..7316c31 100644
--- a/tests/TestBQS.py
+++ b/tests/TestBQS.py
@@ -1,18 +1,40 @@
 import unittest
 import util.BehaviorQuerySystem as bqs
 from behaviors.ColorChangerBehavior import *
+import util.Geo as geo
 class TestBQS(unittest.TestCase):
     def setUp(self):
         bqs.initBQS()
         b = ColorChangerBehavior({'Id': 'color','ColorList':[(255,0,0)]})
+        c = ColorChangerBehavior({'Id': 'color2', 'ColorList':[(0,0,255)]})
         bqs.addBehavior(b)
-        b.addInput({'Location':(5,5)})
+        bqs.addBehavior(c)
+        b.addInput({'Location':(3,4)})
+        c.addInput({'Location':(5,12)})
         b.timeStep()
+        c.timeStep()
     def tearDown(self):
         bqs.initBQS()
-
-    def test_color_predicate(self):
+    def test_simple_query(self):
         validQuery = lambda args:args['Color']==(255,0,0)
         invalidQuery = lambda args:args['Color']==(254,0,0)
-        assert bqs.query(validQuery) == [{'Color':(255,0,0), 'Location':(5,5)}]
+        assert bqs.query(validQuery) == [{'Color':(255,0,0), 'Location':(3,4)}]
         assert bqs.query(invalidQuery) == []
+    def test_dist_query(self):
+        validDist = lambda args:geo.dist(args['Location'], (0,0)) <= 5
+        invalidDist = lambda args:geo.dist(args['Location'], (0,0)) <= 2
+        doubleDist = lambda args:geo.dist(args['Location'], (0,0)) <= 20
+
+        assert bqs.query(validDist) == [{'Color':(255,0,0), 'Location':(3,4)}] 
+        assert bqs.query(invalidDist) == [] 
+        assert bqs.query(doubleDist) == [{'Color':(255,0,0), 'Location':(3,4)}, {'Color':(0,0,255),\
+                                         'Location':(5,12)}] 
+    def test_complex_queries(self):
+
+        validQuery = lambda args:args['Color']==(255,0,0)
+        doubleDist = lambda args:geo.dist(args['Location'], (0,0)) <= 20
+        
+        twoPartPredicate = lambda args:doubleDist(args) and validQuery(args)
+        assert bqs.query(twoPartPredicate) == [{'Color':(255,0,0), 'Location':(3,4)}] 
+        assert bqs.query([validQuery, doubleDist]) == [{'Color':(255,0,0), 'Location':(3,4)}] 
+
diff --git a/util/BehaviorQuerySystem.py b/util/BehaviorQuerySystem.py
index 5399435..643b95c 100644
--- a/util/BehaviorQuerySystem.py
+++ b/util/BehaviorQuerySystem.py
@@ -16,7 +16,7 @@ def query(predicateList):
     #want to do queries wrt: behavior itself, the behavior packet, the querying behavior
     if isinstance(predicateList, types.FunctionType):
         predicateList = [predicateList]
-    elif not isinstance(prediateList, list):
+    elif not isinstance(predicateList, list):
         raise Exception('Predicate list must be a function or list of functions')
     global behaviorList, initialized
     ret = [] 
-- 
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