101 lines
3.7 KiB
JavaScript
101 lines
3.7 KiB
JavaScript
// Tests for the $objectToArray aggregation expression.
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import "jstests/libs/query/sbe_assert_error_override.js";
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import {assertErrorCode} from "jstests/aggregation/extras/utils.js";
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let coll = db.object_to_array_expr;
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coll.drop();
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let object_to_array_expr = {$project: {expanded: {$objectToArray: "$subDoc"}}};
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// $objectToArray correctly converts a document to an array of key-value pairs.
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assert.commandWorked(coll.insert({_id: 0, subDoc: {"a": 1, "b": 2, "c": "foo"}}));
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let result = coll.aggregate([object_to_array_expr]).toArray();
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assert.eq(result,
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[{_id: 0, expanded: [{"k": "a", "v": 1}, {"k": "b", "v": 2}, {"k": "c", "v": "foo"}]}]);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 1, subDoc: {"y": []}}));
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result = coll.aggregate([object_to_array_expr]).toArray();
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assert.eq(result, [{_id: 1, expanded: [{"k": "y", "v": []}]}]);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 2, subDoc: {"a": 1, "b": {"d": "string"}, "c": [1, 2]}}));
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result = coll.aggregate([object_to_array_expr]).toArray();
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assert.eq(
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result, [{
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_id: 2,
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expanded: [{"k": "a", "v": 1}, {"k": "b", "v": {"d": "string"}}, {"k": "c", "v": [1, 2]}]
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}]);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 3, subDoc: {}}));
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result = coll.aggregate([object_to_array_expr]).toArray();
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assert.eq(result, [{_id: 3, expanded: []}]);
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// Turns to array from the root of the document.
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 4, "a": 1, "b": 2, "c": 3}));
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result = coll.aggregate([{$project: {document: {$objectToArray: "$$ROOT"}}}]).toArray();
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assert.eq(
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result, [{
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_id: 4,
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document: [{"k": "_id", "v": 4}, {"k": "a", "v": 1}, {"k": "b", "v": 2}, {"k": "c", "v": 3}]
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}]);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 5, "date": ISODate("2017-01-24T00:00:00")}));
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result =
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coll.aggregate([{$project: {document: {$objectToArray: {dayOfWeek: {$dayOfWeek: "$date"}}}}}])
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.toArray();
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assert.eq(result, [{_id: 5, document: [{"k": "dayOfWeek", "v": 3}]}]);
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// $objectToArray errors on non-document types.
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 6, subDoc: "string"}));
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assertErrorCode(coll, [object_to_array_expr], 40390);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 7, subDoc: ObjectId()}));
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assertErrorCode(coll, [object_to_array_expr], 40390);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 8, subDoc: NumberLong(0)}));
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assertErrorCode(coll, [object_to_array_expr], 40390);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 9, subDoc: []}));
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assertErrorCode(coll, [object_to_array_expr], 40390);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 10, subDoc: [0]}));
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assertErrorCode(coll, [object_to_array_expr], 40390);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 11, subDoc: ["string"]}));
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assertErrorCode(coll, [object_to_array_expr], 40390);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 12, subDoc: [{"a": "b"}]}));
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assertErrorCode(coll, [object_to_array_expr], 40390);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 13, subDoc: NaN}));
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assertErrorCode(coll, [object_to_array_expr], 40390);
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// $objectToArray outputs null on null-ish types.
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 14, subDoc: null}));
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result = coll.aggregate([object_to_array_expr]).toArray();
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assert.eq(result, [{_id: 14, expanded: null}]);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 15, subDoc: undefined}));
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result = coll.aggregate([object_to_array_expr]).toArray();
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assert.eq(result, [{_id: 15, expanded: null}]);
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assert(coll.drop());
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assert.commandWorked(coll.insert({_id: 16}));
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result = coll.aggregate([object_to_array_expr]).toArray();
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assert.eq(result, [{_id: 16, expanded: null}]);
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