1 files changed, 66 insertions, 0 deletions
diff --git a/jstests/and3.js b/jstests/and3.js
new file mode 100644
index 0000000..98a0974
--- /dev/null
+++ b/jstests/and3.js
@@ -0,0 +1,66 @@
+// Check key match with sub matchers - part of SERVER-3192
+
+t = db.jstests_and3;
+t.drop();
+
+t.save( {a:1} );
+t.save( {a:'foo'} );
+
+t.ensureIndex( {a:1} );
+
+function checkScanMatch( query, nscannedObjects, n ) {
+ 	var e = t.find( query ).hint( {a:1} ).explain();
+    // NOTE The nscannedObjects values aren't necessarily optimal currently,
+    // we're just checking current behavior here.
+    assert.eq( nscannedObjects, e.nscannedObjects );
+    assert.eq( n, e.n );
+}
+
+checkScanMatch( {a:/o/}, 1, 1 );
+checkScanMatch( {a:/a/}, 0, 0 );
+checkScanMatch( {a:{$not:/o/}}, 2, 1 );
+checkScanMatch( {a:{$not:/a/}}, 2, 2 );
+
+checkScanMatch( {$and:[{a:/o/}]}, 1, 1 );
+checkScanMatch( {$and:[{a:/a/}]}, 0, 0 );
+checkScanMatch( {$and:[{a:{$not:/o/}}]}, 2, 1 );
+checkScanMatch( {$and:[{a:{$not:/a/}}]}, 2, 2 );
+checkScanMatch( {$and:[{a:/o/},{a:{$not:/o/}}]}, 1, 0 );
+checkScanMatch( {$and:[{a:/o/},{a:{$not:/a/}}]}, 1, 1 );
+checkScanMatch( {$or:[{a:/o/}]}, 1, 1 );
+checkScanMatch( {$or:[{a:/a/}]}, 0, 0 );
+checkScanMatch( {$nor:[{a:/o/}]}, 2, 1 );
+checkScanMatch( {$nor:[{a:/a/}]}, 2, 2 );
+
+checkScanMatch( {$and:[{$and:[{a:/o/}]}]}, 1, 1 );
+checkScanMatch( {$and:[{$and:[{a:/a/}]}]}, 0, 0 );
+checkScanMatch( {$and:[{$and:[{a:{$not:/o/}}]}]}, 2, 1 );
+checkScanMatch( {$and:[{$and:[{a:{$not:/a/}}]}]}, 2, 2 );
+checkScanMatch( {$and:[{$or:[{a:/o/}]}]}, 1, 1 );
+checkScanMatch( {$and:[{$or:[{a:/a/}]}]}, 0, 0 );
+checkScanMatch( {$or:[{a:{$not:/o/}}]}, 2, 1 );
+checkScanMatch( {$and:[{$or:[{a:{$not:/o/}}]}]}, 2, 1 );
+checkScanMatch( {$and:[{$or:[{a:{$not:/a/}}]}]}, 2, 2 );
+checkScanMatch( {$and:[{$nor:[{a:/o/}]}]}, 2, 1 );
+checkScanMatch( {$and:[{$nor:[{a:/a/}]}]}, 2, 2 );
+
+checkScanMatch( {$where:'this.a==1'}, 2, 1 );
+checkScanMatch( {$and:[{$where:'this.a==1'}]}, 2, 1 );
+
+checkScanMatch( {a:1,$where:'this.a==1'}, 1, 1 );
+checkScanMatch( {a:1,$and:[{$where:'this.a==1'}]}, 1, 1 );
+checkScanMatch( {$and:[{a:1},{$where:'this.a==1'}]}, 1, 1 );
+checkScanMatch( {$and:[{a:1,$where:'this.a==1'}]}, 1, 1 );
+checkScanMatch( {a:1,$and:[{a:1},{a:1,$where:'this.a==1'}]}, 1, 1 );
+
+function checkImpossibleMatch( query ) {
+    var e = t.find( query ).explain();
+    assert.eq( 0, e.n );
+    assert.eq( 'BasicCursor', e.cursor );
+}
+
+// With a single key index, all bounds are utilized.
+assert.eq( [[1,1]], t.find( {$and:[{a:1}]} ).explain().indexBounds.a );
+assert.eq( [[1,1]], t.find( {a:1,$and:[{a:1}]} ).explain().indexBounds.a );
+checkImpossibleMatch( {a:1,$and:[{a:2}]} );
+checkImpossibleMatch( {$and:[{a:1},{a:2}]} );