39 lines
1.2 KiB
JavaScript
39 lines
1.2 KiB
JavaScript
/**
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* Test to verify 'scope' parameter of mapReduce command. This test verfies that 'map', 'reduce' and
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* 'finalize' functions can use 'scope' variable passed in the input.
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*/
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const st = new ShardingTest({shards: 2});
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const dbName = jsTest.name();
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const coll = st.s.getDB(dbName).coll;
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st.s.adminCommand({enableSharding: dbName, primaryShard: st.shard0.shardName});
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function runTest(coll) {
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/* eslint-disable */
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const map = function() {
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emit(xx.val, this.a);
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};
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const reduce = function(key, values) {
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return {reduce: xx.val + 1};
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};
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const finalize = function(key, values) {
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values.finalize = xx.val + 2;
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return values;
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};
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/* eslint-enable */
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const res = assert.commandWorked(
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coll.mapReduce(map, reduce, {finalize: finalize, out: {inline: 1}, scope: {xx: {val: 9}}}));
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assert.eq(res.results.length, 1, res);
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assert.eq(res.results[0], {_id: 9, value: {reduce: 10, finalize: 11}}, res);
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}
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assert.commandWorked(coll.insert({}));
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// Run test when a single shard is targetted.
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runTest(coll);
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// Run test when more than one shard is targetted.
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st.shardColl("coll", {a: 1}, {a: 0});
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runTest(coll);
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st.stop();
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