25 lines
1.0 KiB
JavaScript
25 lines
1.0 KiB
JavaScript
/**
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* Test projecting DBRef fields ($ref, $id, $db) in views.
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*
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* Legacy find() queries do not support views, so must use the find() command.
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*/
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const viewsDB = db.getSiblingDB("views_dbref_projection");
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assert.commandWorked(viewsDB.dropDatabase());
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assert.commandWorked(
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viewsDB.baseColl.insert({_id: 0, link: new DBRef("otherColl", "someId", viewsDB.getName())}));
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assert.commandWorked(viewsDB.runCommand({create: "view", viewOn: "baseColl"}));
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// Check that the view and base collection return the same thing.
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function checkViewAndBaseCollection(projection, expectedResult) {
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const baseRes = viewsDB.baseColl.find({}, projection).toArray();
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const viewRes = viewsDB.view.find({}, projection).toArray();
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assert.eq(baseRes, viewRes);
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assert.eq(expectedResult, baseRes);
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}
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checkViewAndBaseCollection({"link.$ref": 1}, [{_id: 0, link: {$ref: "otherColl"}}]);
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checkViewAndBaseCollection({"link.$db": 1}, [{_id: 0, link: {$db: viewsDB.getName()}}]);
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checkViewAndBaseCollection({"link.$id": 1}, [{_id: 0, link: {$id: "someId"}}]);
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