1 files changed, 36 insertions, 0 deletions
diff --git a/jstests/regex3.js b/jstests/regex3.js
new file mode 100644
index 0000000..ee8d9cf
--- /dev/null
+++ b/jstests/regex3.js
@@ -0,0 +1,36 @@
+
+t = db.regex3;
+t.drop();
+
+t.save( { name : "eliot" } );
+t.save( { name : "emily" } );
+t.save( { name : "bob" } );
+t.save( { name : "aaron" } );
+
+assert.eq( 2 , t.find( { name : /^e.*/ } ).count() , "no index count" );
+assert.eq( 4 , t.find( { name : /^e.*/ } ).explain().nscanned , "no index explain" );
+t.ensureIndex( { name : 1 } );
+assert.eq( 2 , t.find( { name : /^e.*/ } ).count() , "index count" );
+assert.eq( 2 , t.find( { name : /^e.*/ } ).explain().nscanned , "index explain" ); // SERVER-239
+
+t.drop();
+
+t.save( { name : "aa" } );
+t.save( { name : "ab" } );
+t.save( { name : "ac" } );
+t.save( { name : "c" } );
+
+assert.eq( 3 , t.find( { name : /^aa*/ } ).count() , "B ni" );
+t.ensureIndex( { name : 1 } );
+assert.eq( 3 , t.find( { name : /^aa*/ } ).count() , "B i 1" );
+assert.eq( 3 , t.find( { name : /^aa*/ } ).explain().nscanned , "B i 1 e" );
+
+assert.eq( 2 , t.find( { name : /^a[ab]/ } ).count() , "B i 2" );
+assert.eq( 2 , t.find( { name : /^a[bc]/ } ).count() , "B i 3" );
+
+t.drop();
+
+t.save( { name: "" } );
+assert.eq( 1, t.count( { name: /^a?/ } ) , "C 1" );
+t.ensureIndex( { name: 1 } );
+assert.eq( 1, t.count( { name: /^a?/ } ) , "C 2");