1 files changed, 0 insertions, 105 deletions
diff --git a/jstests/aggregation/sources/unionWith/unionWith_explain.js b/jstests/aggregation/sources/unionWith/unionWith_explain.js
deleted file mode 100644
index 111b78a3697..00000000000
--- a/jstests/aggregation/sources/unionWith/unionWith_explain.js
+++ /dev/null
@@ -1,105 +0,0 @@
-/**
- * Test that $unionWith's pipeline argument returns the same explain as an equivalent normal
- * pipeline.
- * @tags: [do_not_wrap_aggregations_in_facets]
- */
-
-(function() {
-"use strict";
-load("jstests/aggregation/extras/utils.js");  // arrayEq, documentEq
-load("jstests/libs/fixture_helpers.js");      // For FixtureHelpers.
-
-const testDB = db.getSiblingDB(jsTestName());
-const collA = testDB.A;
-collA.drop();
-const collB = testDB.B;
-collB.drop();
-const collC = testDB.C;
-collC.drop();
-for (let i = 0; i < 5; i++) {
-    assert.commandWorked(collA.insert({a: i, val: i, groupKey: i}));
-    assert.commandWorked(collB.insert({b: i, val: i * 2, groupKey: i}));
-    assert.commandWorked(collC.insert({c: i, val: 10 - i, groupKey: i}));
-}
-function getUnionWithStage(pipeline) {
-    for (let i = 0; i < pipeline.length; i++) {
-        const stage = pipeline[i];
-        if (stage.hasOwnProperty("$unionWith")) {
-            return stage;
-        }
-    }
-}
-
-function buildErrorString(unionExplain, realExplain, field) {
-    return "Explains did not match in field " + field + ". Union:\n" + tojson(unionExplain) +
-        "\nRegular:\n" + tojson(realExplain);
-}
-
-function assertExplainEq(unionExplain, regularExplain) {
-    if (FixtureHelpers.isMongos(testDB)) {
-        const splitPipe = unionExplain.splitPipeline;
-        // If there is only one shard, the whole pipeline will run on that shard.
-        const subAggPipe =
-            splitPipe === null ? unionExplain.shards["shard-rs0"].stages : splitPipe.mergerPart;
-        const unionStage = getUnionWithStage(subAggPipe);
-        const unionSubExplain = unionStage.$unionWith.pipeline;
-        if (splitPipe === null) {
-            assert.eq(unionSubExplain.splitPipeline,
-                      regularExplain.splitPipeline,
-                      buildErrorString(unionSubExplain, regularExplain, "splitPipeline"));
-        } else {
-            assert(documentEq(unionSubExplain.splitPipeline, regularExplain.splitPipeline),
-                   buildErrorString(unionSubExplain, regularExplain, "splitPipeline"));
-        }
-        assert.eq(unionSubExplain.mergeType,
-                  regularExplain.mergeType,
-                  buildErrorString(unionSubExplain, regularExplain, "mergeType"));
-        assert(documentEq(unionSubExplain.shards, regularExplain.shards),
-               buildErrorString(unionSubExplain, regularExplain, "shards"));
-    } else {
-        const unionStage = getUnionWithStage(unionExplain.stages);
-        const unionSubExplain = unionStage.$unionWith.pipeline;
-        const realExplain = regularExplain.stages;
-        assert(arrayEq(unionSubExplain, realExplain),
-               buildErrorString(unionSubExplain, realExplain));
-    }
-}
-function testPipeline(pipeline) {
-    let unionResult = collA.aggregate([{$unionWith: {coll: collB.getName(), pipeline: pipeline}}],
-                                      {explain: true});
-    let queryResult = collB.aggregate(pipeline, {explain: true});
-    assertExplainEq(unionResult, queryResult);
-}
-
-testPipeline([{$addFields: {bump: true}}]);
-
-testPipeline([{$group: {_id: "$groupKey", sum: {$sum: "$val"}}}]);
-
-testPipeline([{$group: {_id: "$groupKey", sum: {$sum: "$val"}}}, {$addFields: {bump: true}}]);
-
-testPipeline([{$unionWith: {coll: collC.getName()}}]);
-
-testPipeline([{$unionWith: {coll: collC.getName(), pipeline: [{$addFields: {bump: true}}]}}]);
-
-testPipeline([
-    {$project: {firstProj: false}},
-    {$group: {_id: "$groupKey", sum: {$sum: "$val"}}},
-    {$match: {_id: 2}}
-]);
-
-testPipeline([{$limit: 3}, {$sort: {_id: 1}}, {$addFields: {bump: true}}]);
-
-testPipeline([{
-    $addFields: {
-        value: {
-            $function: {
-                body: function(base, pow) {
-                    return Math.pow(base, pow);
-                },
-                args: [2, 3],
-                lang: "js"
-            }
-        }
-    }
-}]);
-})();