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// Test the creation of views with various options.
// @tags: [
// assumes_superuser_permissions,
// ]
(function() {
"use strict";
// For arrayEq.
load("jstests/aggregation/extras/utils.js");
let viewsDB = db.getSiblingDB("views_creation");
assert.commandWorked(viewsDB.dropDatabase());
let collNames = viewsDB.getCollectionNames();
assert.eq(0, collNames.length, tojson(collNames));
// You cannot create a view that starts with 'system.'.
assert.commandFailedWithCode(viewsDB.runCommand({create: "system.views", viewOn: "collection"}),
ErrorCodes.InvalidNamespace,
"Created an illegal view named 'system.views'");
// We don't run this check on MMAPv1 as it automatically creates a system.indexes collection
// when creating a database, which causes this command to fail with NamespaceAlreadyExists.
if (jsTest.options().storageEngine !== "mmapv1") {
assert.commandFailedWithCode(
viewsDB.runCommand({create: "system.indexes", viewOn: "collection"}),
ErrorCodes.InvalidNamespace,
"Created an illegal view named 'system.indexes'");
}
// Collections that start with 'system.' that are not special to MongoDB fail with a different
// error code.
assert.commandFailedWithCode(viewsDB.runCommand({create: "system.foo", viewOn: "collection"}),
ErrorCodes.InvalidNamespace,
"Created an illegal view named 'system.foo'");
// Create a collection for test purposes.
assert.commandWorked(viewsDB.runCommand({create: "collection"}));
let pipe = [{$match: {}}];
// Create a "regular" view on a collection.
assert.commandWorked(
viewsDB.runCommand({create: "view", viewOn: "collection", pipeline: pipe}));
collNames = viewsDB.getCollectionNames().filter((function(coll) {
return !coll.startsWith("system.");
}));
assert.eq(2, collNames.length, collNames);
let res = viewsDB.runCommand({listCollections: 1, filter: {type: "view"}});
assert.commandWorked(res);
// Ensure that the output of listCollections has all the expected options for a view.
let expectedListCollectionsOutput = [{
name: "view",
type: "view",
options: {viewOn: "collection", pipeline: pipe},
info: {readOnly: true}
}];
assert(arrayEq(res.cursor.firstBatch, expectedListCollectionsOutput), tojson({
expectedListCollectionsOutput: expectedListCollectionsOutput,
got: res.cursor.firstBatch
}));
// Create a view on a non-existent collection.
assert.commandWorked(
viewsDB.runCommand({create: "viewOnNonexistent", viewOn: "nonexistent", pipeline: pipe}));
// Create a view but don't specify a pipeline; this should default to something sane.
assert.commandWorked(
viewsDB.runCommand({create: "viewWithDefaultPipeline", viewOn: "collection"}));
// Specifying a pipeline but no view namespace must fail.
assert.commandFailed(viewsDB.runCommand({create: "viewNoViewNamespace", pipeline: pipe}));
// Create a view on another view.
assert.commandWorked(
viewsDB.runCommand({create: "viewOnView", viewOn: "view", pipeline: pipe}));
// View names are constrained to the same limitations as collection names.
assert.commandFailed(viewsDB.runCommand({create: "", viewOn: "collection", pipeline: pipe}));
assert.commandFailedWithCode(
viewsDB.runCommand({create: "system.local.new", viewOn: "collection", pipeline: pipe}),
ErrorCodes.InvalidNamespace);
assert.commandFailedWithCode(
viewsDB.runCommand({create: "dollar$", viewOn: "collection", pipeline: pipe}),
ErrorCodes.InvalidNamespace);
}());
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