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-rw-r--r--jstests/core/elemMatchProjection.js488
1 files changed, 218 insertions, 270 deletions
diff --git a/jstests/core/elemMatchProjection.js b/jstests/core/elemMatchProjection.js
index ce4fd0639a7..7114959b6ca 100644
--- a/jstests/core/elemMatchProjection.js
+++ b/jstests/core/elemMatchProjection.js
@@ -1,273 +1,221 @@
// Tests for $elemMatch projections and $ positional operator projection.
-t = db.SERVER828Test;
-t.drop();
-
-date1 = new Date();
-
-// Insert various styles of arrays
-for (i = 0; i < 100; i++) {
- t.insert({group: 1, x: [1, 2, 3, 4, 5]});
- t.insert({group: 2, x: [{a: 1, b: 2}, {a: 2, c: 3}, {a: 1, d: 5}]});
- t.insert({
- group: 3,
- x: [{a: 1, b: 2}, {a: 2, c: 3}, {a: 1, d: 5}],
- y: [{aa: 1, bb: 2}, {aa: 2, cc: 3}, {aa: 1, dd: 5}]
- });
- t.insert({group: 3, x: [{a: 1, b: 3}, {a: -6, c: 3}]});
- t.insert({group: 4, x: [{a: 1, b: 4}, {a: -6, c: 3}]});
- t.insert({group: 5, x: [new Date(), 5, 10, 'string', new ObjectId(), 123.456]});
- t.insert({
- group: 6,
- x: [{a: 'string', b: date1}, {a: new ObjectId(), b: 1.2345}, {a: 'string2', b: date1}]
- });
- t.insert({group: 7, x: [{y: [1, 2, 3, 4]}]});
- t.insert({group: 8, x: [{y: [{a: 1, b: 2}, {a: 3, b: 4}]}]});
- t.insert({group: 9, x: [{y: [{a: 1, b: 2}, {a: 3, b: 4}]}, {z: [{a: 1, b: 2}, {a: 3, b: 4}]}]});
- t.insert({group: 10, x: [{a: 1, b: 2}, {a: 3, b: 4}], y: [{c: 1, d: 2}, {c: 3, d: 4}]});
- t.insert({group: 10, x: [{a: 1, b: 2}, {a: 3, b: 4}], y: [{c: 1, d: 2}, {c: 3, d: 4}]});
- t.insert({
- group: 11,
- x: [{a: 1, b: 2}, {a: 2, c: 3}, {a: 1, d: 5}],
- covered: [{aa: 1, bb: 2}, {aa: 2, cc: 3}, {aa: 1, dd: 5}]
- });
- t.insert({group: 12, x: {y: [{a: 1, b: 1}, {a: 1, b: 2}]}});
- t.insert({group: 13, x: [{a: 1, b: 1}, {a: 1, b: 2}]});
- t.insert({group: 13, x: [{a: 1, b: 2}, {a: 1, b: 1}]});
-}
-t.ensureIndex({
- group: 1,
- 'y.d': 1
-}); // for regular index test (not sure if this is really adding anything useful)
-t.ensureIndex({group: 1, covered: 1}); // for covered index test
-
-//
-// SERVER-828: Positional operator ($) projection tests
-//
-assert.eq(1,
- t.find({group: 3, 'x.a': 2}, {'x.$': 1}).toArray()[0].x.length,
- "single object match (array length match)");
-
-assert.eq(
- 2, t.find({group: 3, 'x.a': 1}, {'x.$': 1}).toArray()[0].x[0].b, "single object match first");
-
-assert.eq(undefined,
- t.find({group: 3, 'x.a': 2}, {_id: 0, 'x.$': 1}).toArray()[0]._id,
- "single object match with filtered _id");
-
-assert.eq(1,
- t.find({group: 3, 'x.a': 2}, {'x.$': 1}).sort({_id: 1}).toArray()[0].x.length,
- "sorted single object match with filtered _id (array length match)");
-
-assert.eq(
- 1,
- t.find({'group': 2, 'x': {'$elemMatch': {'a': 1, 'b': 2}}}, {'x.$': 1}).toArray()[0].x.length,
- "single object match with elemMatch");
-
-assert.eq(1,
- t.find({'group': 2, 'x': {'$elemMatch': {'a': 1, 'b': 2}}}, {'x.$': {'$slice': 1}})
- .toArray()[0]
- .x.length,
- "single object match with elemMatch and positive slice");
-
-assert.eq(1,
- t.find({'group': 2, 'x': {'$elemMatch': {'a': 1, 'b': 2}}}, {'x.$': {'$slice': -1}})
- .toArray()[0]
- .x.length,
- "single object match with elemMatch and negative slice");
-
-assert.eq(1,
- t.find({'group': 12, 'x.y.a': 1}, {'x.y.$': 1}).toArray()[0].x.y.length,
- "single object match with two level dot notation");
-
-assert.eq(1,
- t.find({group: 3, 'x.a': 2}, {'x.$': 1}).sort({x: 1}).toArray()[0].x.length,
- "sorted object match (array length match)");
-
-assert.eq({aa: 1, dd: 5},
- t.find({group: 3, 'y.dd': 5}, {'y.$': 1}).toArray()[0].y[0],
- "single object match (value match)");
-
-assert.throws(function() {
- t.find({group: 3, 'x.a': 2}, {'y.$': 1}).toArray();
-}, [], "throw on invalid projection (field mismatch)");
-
-assert.throws(function() {
- t.find({group: 3, 'x.a': 2}, {'y.$': 1}).sort({x: 1}).toArray();
-}, [], "throw on invalid sorted projection (field mismatch)");
-
-assert.throws(function() {
- t.find({group: 3, 'x.a': 2}, {'x.$': 1, group: 0}).sort({x: 1}).toArray();
-}, [], "throw on invalid projection combination (include and exclude)");
-
-assert.throws(function() {
- t.find({group: 3, 'x.a': 1, 'y.aa': 1}, {'x.$': 1, 'y.$': 1}).toArray();
-}, [], "throw on multiple projections");
-
-assert.throws(function() {
- t.find({group: 3}, {'g.$': 1}).toArray();
-}, [], "throw on invalid projection (non-array field)");
-
-assert.eq({aa: 1, dd: 5},
- t.find({group: 11, 'covered.dd': 5}, {'covered.$': 1}).toArray()[0].covered[0],
- "single object match (covered index)");
-
-assert.eq({aa: 1, dd: 5},
- t.find({group: 11, 'covered.dd': 5}, {'covered.$': 1})
- .sort({covered: 1})
- .toArray()[0]
- .covered[0],
- "single object match (sorted covered index)");
-
-assert.eq(1,
- t.find({group: 10, 'y.d': 4}, {'y.$': 1}).toArray()[0].y.length,
- "single object match (regular index");
-
-if (false) {
- assert.eq(2, // SERVER-1013: allow multiple positional operators
- t.find({group: 3, 'y.bb': 2, 'x.d': 5}, {'y.$': 1, 'x.$': 1}).toArray()[0].y[0].bb,
- "multi match, multi proj 1");
-
- assert.eq(5, // SSERVER-1013: allow multiple positional operators
- t.find({group: 3, 'y.bb': 2, 'x.d': 5}, {'y.$': 1, 'x.$': 1}).toArray()[0].x[0].d,
- "multi match, multi proj 2");
-
- assert.eq(2, // SERVER-1243: allow multiple results from same matcher
- t.find({group: 2, x: {$elemMatchAll: {a: 1}}}, {'x.$': 1}).toArray()[0].x.length,
- "multi element match, single proj");
-
- assert.eq(2, // SERVER-1013: multiple array matches with one prositional operator
- t.find({group: 3, 'y.bb': 2, 'x.d': 5}, {'y.$': 1}).toArray()[0].y[0].bb,
- "multi match, single proj 1");
-
- assert.eq(2, // SERVER-1013: multiple array matches with one positional operator
- t.find({group: 3, 'y.cc': 3, 'x.b': 2}, {'x.$': 1}).toArray()[0].x[0].b,
- "multi match, single proj 2");
-}
-
-//
-// SERVER-2238: $elemMatch projections
-//
-assert.eq(
- -6, t.find({group: 4}, {x: {$elemMatch: {a: -6}}}).toArray()[0].x[0].a, "single object match");
-
-assert.eq(1,
- t.find({group: 4}, {x: {$elemMatch: {a: -6}}}).toArray()[0].x.length,
- "filters non-matching array elements");
-
-assert.eq(1,
- t.find({group: 4}, {x: {$elemMatch: {a: -6, c: 3}}}).toArray()[0].x.length,
- "filters non-matching array elements with multiple elemMatch criteria");
-
-assert.eq(
- 1,
- t.find({group: 13}, {'x': {'$elemMatch': {a: {$gt: 0, $lt: 2}}}}).toArray()[0].x.length,
- "filters non-matching array elements with multiple criteria for a single element in the array");
-
-assert.eq(3,
- t.find({group: 4}, {x: {$elemMatch: {a: {$lt: 1}}}}).toArray()[0].x[0].c,
- "object operator match");
-
-assert.eq([4],
- t.find({group: 1}, {x: {$elemMatch: {$in: [100, 4, -123]}}}).toArray()[0].x,
- "$in number match");
-
-assert.eq([{a: 1, b: 2}],
- t.find({group: 2}, {x: {$elemMatch: {a: {$in: [1]}}}}).toArray()[0].x,
- "$in number match");
-
-assert.eq([1],
- t.find({group: 1}, {x: {$elemMatch: {$nin: [4, 5, 6]}}}).toArray()[0].x,
- "$nin number match");
-
-// but this may become a user assertion, since a single element of an array can't match more than
-// one value
-assert.eq(
- [1], t.find({group: 1}, {x: {$elemMatch: {$all: [1]}}}).toArray()[0].x, "$in number match");
-
-assert.eq([{a: 'string', b: date1}],
- t.find({group: 6}, {x: {$elemMatch: {a: 'string'}}}).toArray()[0].x,
- "mixed object match on string eq");
-
-assert.eq([{a: 'string2', b: date1}],
- t.find({group: 6}, {x: {$elemMatch: {a: /ring2/}}}).toArray()[0].x,
- "mixed object match on regexp");
-
-assert.eq([{a: 'string', b: date1}],
- t.find({group: 6}, {x: {$elemMatch: {a: {$type: 2}}}}).toArray()[0].x,
- "mixed object match on type");
-
-assert.eq([{a: 2, c: 3}],
- t.find({group: 2}, {x: {$elemMatch: {a: {$ne: 1}}}}).toArray()[0].x,
- "mixed object match on ne");
-
-assert.eq([{a: 1, d: 5}],
- t.find({group: 3}, {x: {$elemMatch: {d: {$exists: true}}}}).toArray()[0].x,
- "mixed object match on exists");
-
-assert.eq([{a: 2, c: 3}],
- t.find({group: 3}, {x: {$elemMatch: {a: {$mod: [2, 0]}}}}).toArray()[0].x,
- "mixed object match on mod");
-
-assert.eq(
- {"x": [{"a": 1, "b": 2}], "y": [{"c": 3, "d": 4}]},
- t.find({group: 10}, {_id: 0, x: {$elemMatch: {a: 1}}, y: {$elemMatch: {c: 3}}}).toArray()[0],
- "multiple $elemMatch on unique fields 1");
-
-if (false) {
- assert.eq(2, // SERVER-1243: handle multiple $elemMatch results
- t.find({group: 4}, {x: {$elemMatchAll: {a: {$lte: 2}}}}).toArray()[0].x.length,
- "multi object match");
-
- assert.eq(3, // SERVER-1243: handle multiple $elemMatch results
- t.find({group: 1}, {x: {$elemMatchAll: {$in: [1, 2, 3]}}}).toArray()[0].x.length,
+(function() {
+ "use strict";
+
+ const coll = db.SERVER828Test;
+ coll.drop();
+
+ const date1 = new Date();
+
+ // Insert various styles of arrays.
+ const bulk = coll.initializeUnorderedBulkOp();
+ for (let i = 0; i < 100; i++) {
+ bulk.insert({group: 1, x: [1, 2, 3, 4, 5]});
+ bulk.insert({group: 2, x: [{a: 1, b: 2}, {a: 2, c: 3}, {a: 1, d: 5}]});
+ bulk.insert({
+ group: 3,
+ x: [{a: 1, b: 2}, {a: 2, c: 3}, {a: 1, d: 5}],
+ y: [{aa: 1, bb: 2}, {aa: 2, cc: 3}, {aa: 1, dd: 5}]
+ });
+ bulk.insert({group: 3, x: [{a: 1, b: 3}, {a: -6, c: 3}]});
+ bulk.insert({group: 4, x: [{a: 1, b: 4}, {a: -6, c: 3}]});
+ bulk.insert({group: 5, x: [new Date(), 5, 10, 'string', new ObjectId(), 123.456]});
+ bulk.insert({
+ group: 6,
+ x: [
+ {a: 'string', b: date1},
+ {a: new ObjectId(), b: 1.2345},
+ {a: 'string2', b: date1}
+ ]
+ });
+ bulk.insert({group: 7, x: [{y: [1, 2, 3, 4]}]});
+ bulk.insert({group: 8, x: [{y: [{a: 1, b: 2}, {a: 3, b: 4}]}]});
+ bulk.insert(
+ {group: 9, x: [{y: [{a: 1, b: 2}, {a: 3, b: 4}]}, {z: [{a: 1, b: 2}, {a: 3, b: 4}]}]});
+ bulk.insert({group: 10, x: [{a: 1, b: 2}, {a: 3, b: 4}], y: [{c: 1, d: 2}, {c: 3, d: 4}]});
+ bulk.insert({group: 10, x: [{a: 1, b: 2}, {a: 3, b: 4}], y: [{c: 1, d: 2}, {c: 3, d: 4}]});
+ bulk.insert({
+ group: 11,
+ x: [{a: 1, b: 2}, {a: 2, c: 3}, {a: 1, d: 5}],
+ covered: [{aa: 1, bb: 2}, {aa: 2, cc: 3}, {aa: 1, dd: 5}]
+ });
+ bulk.insert({group: 12, x: {y: [{a: 1, b: 1}, {a: 1, b: 2}]}});
+ bulk.insert({group: 13, x: [{a: 1, b: 1}, {a: 1, b: 2}]});
+ bulk.insert({group: 13, x: [{a: 1, b: 2}, {a: 1, b: 1}]});
+ }
+ assert.writeOK(bulk.execute());
+
+ assert.writeOK(coll.createIndex({group: 1, 'y.d': 1}));
+ assert.writeOK(coll.createIndex({group: 1, covered: 1})); // for covered index test
+
+ // Tests for the $-positional operator.
+ assert.eq(1,
+ coll.find({group: 3, 'x.a': 2}, {'x.$': 1}).sort({_id: 1}).toArray()[0].x.length,
+ "single object match (array length match)");
+
+ assert.eq(2,
+ coll.find({group: 3, 'x.a': 1}, {'x.$': 1}).sort({_id: 1}).toArray()[0].x[0].b,
+ "single object match first");
+
+ assert.eq(undefined,
+ coll.find({group: 3, 'x.a': 2}, {_id: 0, 'x.$': 1}).sort({_id: 1}).toArray()[0]._id,
+ "single object match with filtered _id");
+
+ assert.eq(1,
+ coll.find({group: 3, 'x.a': 2}, {'x.$': 1}).sort({_id: 1}).toArray()[0].x.length,
+ "sorted single object match with filtered _id (array length match)");
+
+ assert.eq(1,
+ coll.find({'group': 2, 'x': {'$elemMatch': {'a': 1, 'b': 2}}}, {'x.$': 1})
+ .toArray()[0]
+ .x.length,
+ "single object match with elemMatch");
+
+ assert.eq(1,
+ coll.find({'group': 2, 'x': {'$elemMatch': {'a': 1, 'b': 2}}}, {'x.$': {'$slice': 1}})
+ .toArray()[0]
+ .x.length,
+ "single object match with elemMatch and positive slice");
+
+ assert.eq(
+ 1,
+ coll.find({'group': 2, 'x': {'$elemMatch': {'a': 1, 'b': 2}}}, {'x.$': {'$slice': -1}})
+ .toArray()[0]
+ .x.length,
+ "single object match with elemMatch and negative slice");
+
+ assert.eq(1,
+ coll.find({'group': 12, 'x.y.a': 1}, {'x.y.$': 1}).toArray()[0].x.y.length,
+ "single object match with two level dot notation");
+
+ assert.eq(1,
+ coll.find({group: 3, 'x.a': 2}, {'x.$': 1}).sort({x: 1}).toArray()[0].x.length,
+ "sorted object match (array length match)");
+
+ assert.eq({aa: 1, dd: 5},
+ coll.find({group: 3, 'y.dd': 5}, {'y.$': 1}).sort({_id: 1}).toArray()[0].y[0],
+ "single object match (value match)");
+
+ assert.throws(function() {
+ coll.find({group: 3, 'x.a': 2}, {'y.$': 1}).toArray();
+ }, [], "throw on invalid projection (field mismatch)");
+
+ assert.throws(function() {
+ coll.find({group: 3, 'x.a': 2}, {'y.$': 1}).sort({x: 1}).toArray();
+ }, [], "throw on invalid sorted projection (field mismatch)");
+
+ assert.throws(function() {
+ coll.find({group: 3, 'x.a': 2}, {'x.$': 1, group: 0}).sort({x: 1}).toArray();
+ }, [], "throw on invalid projection combination (include and exclude)");
+
+ assert.throws(function() {
+ coll.find({group: 3, 'x.a': 1, 'y.aa': 1}, {'x.$': 1, 'y.$': 1}).toArray();
+ }, [], "throw on multiple projections");
+
+ assert.throws(function() {
+ coll.find({group: 3}, {'g.$': 1}).toArray();
+ }, [], "throw on invalid projection (non-array field)");
+
+ assert.eq({aa: 1, dd: 5},
+ coll.find({group: 11, 'covered.dd': 5}, {'covered.$': 1}).toArray()[0].covered[0],
+ "single object match (covered index)");
+
+ assert.eq({aa: 1, dd: 5},
+ coll.find({group: 11, 'covered.dd': 5}, {'covered.$': 1})
+ .sort({covered: 1})
+ .toArray()[0]
+ .covered[0],
+ "single object match (sorted covered index)");
+
+ assert.eq(1,
+ coll.find({group: 10, 'y.d': 4}, {'y.$': 1}).sort({_id: 1}).toArray()[0].y.length,
+ "single object match (regular index");
+
+ // Tests for $elemMatch projection.
+ assert.eq(-6,
+ coll.find({group: 4}, {x: {$elemMatch: {a: -6}}}).toArray()[0].x[0].a,
+ "single object match");
+
+ assert.eq(1,
+ coll.find({group: 4}, {x: {$elemMatch: {a: -6}}}).toArray()[0].x.length,
+ "filters non-matching array elements");
+
+ assert.eq(1,
+ coll.find({group: 4}, {x: {$elemMatch: {a: -6, c: 3}}}).toArray()[0].x.length,
+ "filters non-matching array elements with multiple elemMatch criteria");
+
+ assert.eq(
+ 1,
+ coll.find({group: 13}, {'x': {'$elemMatch': {a: {$gt: 0, $lt: 2}}}})
+ .sort({_id: 1})
+ .toArray()[0]
+ .x.length,
+ "filters non-matching array elements with multiple criteria for a single element in the array");
+
+ assert.eq(
+ 3,
+ coll.find({group: 4}, {x: {$elemMatch: {a: {$lt: 1}}}}).sort({_id: 1}).toArray()[0].x[0].c,
+ "object operator match");
+
+ assert.eq([4],
+ coll.find({group: 1}, {x: {$elemMatch: {$in: [100, 4, -123]}}}).toArray()[0].x,
"$in number match");
- assert.eq(1, // SERVER-1243: handle multiple $elemMatch results
- t.find({group: 5}, {x: {$elemMatchAll: {$ne: 5}}}).toArray()[0].x.length,
- "single mixed type match 1");
-
- assert.eq(1, // SERVER-831: handle nested arrays
- t.find({group: 9}, {'x.y': {$elemMatch: {a: 1}}}).toArray()[0].x.length,
- "single dotted match");
-}
-
-//
-// Batch/getMore tests
-//
-// test positional operator across multiple batches
-a = t.find({group: 3, 'x.b': 2}, {'x.$': 1}).batchSize(1);
-while (a.hasNext()) {
- assert.eq(2, a.next().x[0].b, "positional getMore test");
-}
-
-// test $elemMatch operator across multiple batches
-a = t.find({group: 3}, {x: {$elemMatch: {a: 1}}}).batchSize(1);
-while (a.hasNext()) {
- assert.eq(1, a.next().x[0].a, "positional getMore test");
-}
-
-// verify the positional update operator matches the same element as the the positional find. this
-// is to ensure consistent behavior with updates until SERVER-1013 is resolved, at which point the
-// following tests should be updated.
-
-t.update({group: 10, 'x.a': 3, 'y.c': 1}, {$set: {'x.$': 100}}, false, true);
-// updated the wrong element, so the following assertions should be true
-assert.eq(100,
- t.find({group: 10, 'y.c': 1, x: 100}, {'x.$': 1}).toArray()[0].x[0],
- "wrong single element match after update");
-
-assert.eq(100,
- t.find({group: 10, x: 100, 'y.c': 1}, {'x.$': 1}).toArray()[0].x[0],
- "wrong single element match after update");
-
-t.remove({group: 10});
-t.insert({group: 10, x: [{a: 1, b: 2}, {a: 3, b: 4}], y: [{c: 1, d: 2}, {c: 3, d: 4}]});
-
-t.update({group: 10, 'y.c': 1, 'x.a': 3}, {$set: {'x.$': 100}}, false, true);
-// updated the correct element
-assert.eq(100,
- t.find({group: 10, 'y.c': 1, x: 100}, {'x.$': 1}).toArray()[0].x[0],
- "right single element match after update");
-assert.eq(100,
- t.find({group: 10, x: 100, 'y.c': 1}, {'x.$': 1}).toArray()[0].x[0],
- "right single element match after update");
+ assert.eq([{a: 1, b: 2}],
+ coll.find({group: 2}, {x: {$elemMatch: {a: {$in: [1]}}}}).toArray()[0].x,
+ "$in number match");
+
+ assert.eq([1],
+ coll.find({group: 1}, {x: {$elemMatch: {$nin: [4, 5, 6]}}}).toArray()[0].x,
+ "$nin number match");
+
+ assert.eq([1],
+ coll.find({group: 1}, {x: {$elemMatch: {$all: [1]}}}).toArray()[0].x,
+ "$in number match");
+
+ assert.eq([{a: 'string', b: date1}],
+ coll.find({group: 6}, {x: {$elemMatch: {a: 'string'}}}).toArray()[0].x,
+ "mixed object match on string eq");
+
+ assert.eq([{a: 'string2', b: date1}],
+ coll.find({group: 6}, {x: {$elemMatch: {a: /ring2/}}}).toArray()[0].x,
+ "mixed object match on regexp");
+
+ assert.eq([{a: 'string', b: date1}],
+ coll.find({group: 6}, {x: {$elemMatch: {a: {$type: 2}}}}).toArray()[0].x,
+ "mixed object match on type");
+
+ assert.eq([{a: 2, c: 3}],
+ coll.find({group: 2}, {x: {$elemMatch: {a: {$ne: 1}}}}).toArray()[0].x,
+ "mixed object match on ne");
+
+ assert.eq([{a: 1, d: 5}],
+ coll.find({group: 3}, {x: {$elemMatch: {d: {$exists: true}}}})
+ .sort({_id: 1})
+ .toArray()[0]
+ .x,
+ "mixed object match on exists");
+
+ assert.eq(
+ [{a: 2, c: 3}],
+ coll.find({group: 3}, {x: {$elemMatch: {a: {$mod: [2, 0]}}}}).sort({_id: 1}).toArray()[0].x,
+ "mixed object match on mod");
+
+ assert.eq({"x": [{"a": 1, "b": 2}], "y": [{"c": 3, "d": 4}]},
+ coll.find({group: 10}, {_id: 0, x: {$elemMatch: {a: 1}}, y: {$elemMatch: {c: 3}}})
+ .sort({_id: 1})
+ .toArray()[0],
+ "multiple $elemMatch on unique fields 1");
+
+ // Tests involving getMore. Test the $-positional operator across multiple batches.
+ let a = coll.find({group: 3, 'x.b': 2}, {'x.$': 1}).sort({_id: 1}).batchSize(1);
+ while (a.hasNext()) {
+ assert.eq(2, a.next().x[0].b, "positional getMore test");
+ }
+
+ // Test the $elemMatch operator across multiple batches.
+ a = coll.find({group: 3}, {x: {$elemMatch: {a: 1}}}).sort({_id: 1}).batchSize(1);
+ while (a.hasNext()) {
+ assert.eq(1, a.next().x[0].a, "positional getMore test");
+ }
+}());