mirror of https://github.com/mongodb/mongo
58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
// Tests that multi-line strings with comments are allowed within mapReduce.
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// @tags: [
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// # mapReduce does not support afterClusterTime.
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// does_not_support_causal_consistency,
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// does_not_support_stepdowns,
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// uses_map_reduce_with_temp_collections,
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// ]
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(function() {
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"use strict";
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const coll = db.mr_comments;
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coll.drop();
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const outColl = db.mr_comments_out;
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outColl.drop();
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assert.commandWorked(coll.insert([{foo: 1}, {foo: 1}, {foo: 2}]));
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// Test using comments within the function.
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assert.commandWorked(db.runCommand({
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mapreduce: coll.getName(),
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map: "// This is a comment\n\n // Emit some stuff\n emit(this.foo, 1)\n",
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reduce: function(key, values) {
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return Array.sum(values);
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},
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out: {merge: outColl.getName()}
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}));
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assert.eq(2, outColl.find().toArray().length);
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// Test using a multi-line string literal.
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outColl.drop();
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assert.commandWorked(db.runCommand({
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mapreduce: coll.getName(),
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map: `
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// This is a comment
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// Emit some stuff
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emit(this.foo, 1);
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`,
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reduce: function(key, values) {
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return Array.sum(values);
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},
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out: {merge: outColl.getName()}
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}));
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assert.eq(2, outColl.find().toArray().length);
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// Test that a function passed with a comment in front of it is still recognized.
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outColl.drop();
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assert.commandWorked(db.runCommand({
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mapreduce: coll.getName(),
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map: "// This is a comment\nfunction(){\n // Emit some stuff\n emit(this.foo, 1)\n}\n",
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reduce: function(key, values) {
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return Array.sum(values);
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},
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out: {merge: outColl.getName()}
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}));
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assert.eq(2, outColl.find().toArray().length);
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}());
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