Characterize and add tests for the flaw in SERVER-994

1 files changed, 20 insertions, 2 deletions

diff --git a/jstests/geo_box3.js b/jstests/geo_box3.js
index 26b01e72031..c68f522bbf2 100644
--- a/jstests/geo_box3.js
+++ b/jstests/geo_box3.js
@@ -1,7 +1,25 @@
-t=db.geo_box3;
+// How to construct a test to stress the flaw in SERVER-994:
+// construct an index, think up a bounding box inside the index that
+// doesn't include the center of the index, and put a point inside the
+// bounding box.
 
+// This is the bug reported in SERVER-994, modulo 1000000.
+t=db.geo_box3;
 t.drop();
-// SERVER-994
 t.insert({ point : { x : -15, y : 10 } });
 t.ensureIndex( { point : "2d" } , { min : -21 , max : 21 } );
 t.find({point: {"$within": {"$box": [[-20, 7], [0, 15]]} } });
+
+// Two more examples, one where the index is centered at the origin,
+// one not.
+t=db.geo_box3;
+t.drop();
+t.insert({ point : { x : 1.0 , y : 1.0 } });
+t.ensureIndex( { point : "2d" } , { min : -2 , max : 2 } );
+t.find({point: {"$within": {"$box": [[.1, .1], [1.99, 1.99]]} } });
+
+t=db.geo_box3;
+t.drop();
+t.insert({ point : { x : 3.9 , y : 3.9 } });
+t.ensureIndex( { point : "2d" } , { min : 0 , max : 4 } );
+t.find({point: {"$within": {"$box": [[2.05, 2.05], [3.99, 3.99]]} } });