From 6678d3f5468031585d3b5ddd2be8e30fd786e9e0 Mon Sep 17 00:00:00 2001
From: adam-urbanczyk <adam.jan.urbanczyk@gmail.com>
Date: Sun, 5 Jun 2016 16:54:29 +0200
Subject: [PATCH] Implemented test-case for DirectionNthSelector

---
 tests/TestCQSelectors.py | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/tests/TestCQSelectors.py b/tests/TestCQSelectors.py
index f90e14b..7843b12 100644
--- a/tests/TestCQSelectors.py
+++ b/tests/TestCQSelectors.py
@@ -166,7 +166,25 @@ class TestCQSelectors(BaseTest):
         # test the case of multiple objects at the same distance
         el = c.edges("<Z").vals()
         self.assertEqual(4, len(el))
-
+        
+    def testNthDistance(self):
+        c = Workplane('XY').pushPoints([(-2,0),(2,0)]).box(1,1,1)
+        
+        #2nd face
+        val = c.faces(selectors.DirectionNthSelector(Vector(1,0,0),1)).val()
+        self.assertAlmostEqual(val.Center().x,-1.5)
+        
+        #2nd last face
+        val = c.faces(selectors.DirectionNthSelector(Vector(1,0,0),-2)).val()
+        self.assertAlmostEqual(val.Center().x,1.5)
+        
+        #Last face
+        val = c.faces(selectors.DirectionNthSelector(Vector(1,0,0),-1)).val()
+        self.assertAlmostEqual(val.Center().x,2.5)
+        
+        #check if the selected face if normal to given Vector
+        self.assertAlmostEqual(val.normalAt().cross(Vector(1,0,0)).Length,0.0)
+        
     def testNearestTo(self):
         c = CQ(makeUnitCube())