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// Basic functional tests for the listIndexes command.
(function () {
"use strict";
var coll = db.list_indexes1;
var cursor;
var res;
var specs;
//
// Test basic command output.
//
coll.drop();
assert.commandWorked(coll.getDB().createCollection(coll.getName()));
res = coll.runCommand("listIndexes");
assert.commandWorked(res);
assert.eq("object", typeof(res.cursor));
assert.eq(0, res.cursor.id);
assert.eq("string", typeof(res.cursor.ns));
assert.eq(1, res.cursor.firstBatch.length);
assert.eq("_id_", res.cursor.firstBatch[0].name);
//
// Test basic usage with DBCommandCursor.
//
var getListIndexesCursor = function(coll, options, subsequentBatchSize) {
return new DBCommandCursor(coll.getDB().getMongo(),
coll.runCommand("listIndexes", options),
subsequentBatchSize);
};
var cursorGetIndexSpecs = function(cursor) {
return cursor.toArray().sort(function(a, b) { return a.name > b.name; });
};
var cursorGetIndexNames = function(cursor) {
return cursorGetIndexSpecs(cursor).map(function(spec) { return spec.name; });
};
coll.drop();
assert.commandWorked(coll.getDB().createCollection(coll.getName()));
assert.eq(["_id_"], cursorGetIndexNames(getListIndexesCursor(coll)));
//
// Test that the index metadata object is returned correctly.
//
coll.drop();
assert.commandWorked(coll.getDB().createCollection(coll.getName()));
assert.commandWorked(coll.ensureIndex({a: 1}, {unique: true}));
specs = cursorGetIndexSpecs(getListIndexesCursor(coll));
assert.eq(2, specs.length);
assert.eq("_id_", specs[0].name);
assert.eq(coll.getFullName(), specs[0].ns);
assert.eq({_id: 1}, specs[0].key);
assert(!specs[0].hasOwnProperty("unique"));
assert.eq("a_1", specs[1].name);
assert.eq(coll.getFullName(), specs[1].ns);
assert.eq({a: 1}, specs[1].key);
assert.eq(true, specs[1].unique);
//
// Test that the command does not accept invalid values for the collection.
//
assert.commandFailed(coll.getDB().runCommand({listIndexes: ""}));
assert.commandFailed(coll.getDB().runCommand({listIndexes: 1}));
assert.commandFailed(coll.getDB().runCommand({listIndexes: {}}));
assert.commandFailed(coll.getDB().runCommand({listIndexes: []}));
//
// Test basic usage of "cursor.batchSize" option.
//
// TODO: When SERVER-19569 is done, we should be able to run this test regardless of whether we
// are using the find/getMore commands, both against a standalone server and passed through
// mongos.
if (!coll.getDB().getMongo().useReadCommands()) {
coll.drop();
assert.commandWorked(coll.getDB().createCollection(coll.getName()));
assert.commandWorked(coll.ensureIndex({a: 1}, {unique: true}));
cursor = getListIndexesCursor(coll, {cursor: {batchSize: 2}});
assert.eq(2, cursor.objsLeftInBatch());
assert.eq(["_id_", "a_1"], cursorGetIndexNames(cursor));
cursor = getListIndexesCursor(coll, {cursor: {batchSize: 1}});
assert.eq(1, cursor.objsLeftInBatch());
assert.eq(["_id_", "a_1"], cursorGetIndexNames(cursor));
cursor = getListIndexesCursor(coll, {cursor: {batchSize: 0}});
assert.eq(0, cursor.objsLeftInBatch());
assert.eq(["_id_", "a_1"], cursorGetIndexNames(cursor));
cursor = getListIndexesCursor(coll, {cursor: {batchSize: NumberInt(2)}});
assert.eq(2, cursor.objsLeftInBatch());
assert.eq(["_id_", "a_1"], cursorGetIndexNames(cursor));
cursor = getListIndexesCursor(coll, {cursor: {batchSize: NumberLong(2)}});
assert.eq(2, cursor.objsLeftInBatch());
assert.eq(["_id_", "a_1"], cursorGetIndexNames(cursor));
cursor = getListIndexesCursor(coll, {cursor: {batchSize: Math.pow(2, 62)}});
assert.eq(2, cursor.objsLeftInBatch());
assert.eq(["_id_", "a_1"], cursorGetIndexNames(cursor));
}
// Ensure that the server accepts an empty object for "cursor". This is equivalent to not
// specifying "cursor" at all.
//
// We do not test for objsLeftInBatch() here, since the default batch size for this command is
// not specified.
cursor = getListIndexesCursor(coll, {cursor: {}});
assert.eq(["_id_", "a_1"], cursorGetIndexNames(cursor));
//
// Test more than 2 batches of results.
//
// TODO: When SERVER-19569 is done, we should be able to run this test regardless of whether we
// are using the find/getMore commands, both against a standalone server and passed through
// mongos.
if (!coll.getDB().getMongo().useReadCommands()) {
coll.drop();
assert.commandWorked(coll.getDB().createCollection(coll.getName()));
assert.commandWorked(coll.ensureIndex({a: 1}, {unique: true}));
assert.commandWorked(coll.ensureIndex({b: 1}, {unique: true}));
assert.commandWorked(coll.ensureIndex({c: 1}, {unique: true}));
cursor = getListIndexesCursor(coll, {cursor: {batchSize: 0}}, 2);
assert.eq(0, cursor.objsLeftInBatch());
assert(cursor.hasNext());
assert.eq(2, cursor.objsLeftInBatch());
cursor.next();
assert(cursor.hasNext());
assert.eq(1, cursor.objsLeftInBatch());
cursor.next();
assert(cursor.hasNext());
assert.eq(2, cursor.objsLeftInBatch());
cursor.next();
assert(cursor.hasNext());
assert.eq(1, cursor.objsLeftInBatch());
cursor.next();
assert(!cursor.hasNext());
}
//
// Test on collection with no indexes.
//
coll.drop();
assert.commandWorked(coll.getDB().createCollection(coll.getName(), {autoIndexId: false}));
assert.eq([], cursorGetIndexNames(getListIndexesCursor(coll)));
//
// Test killCursors against a listCollections cursor.
//
coll.drop();
assert.commandWorked(coll.getDB().createCollection(coll.getName()));
assert.commandWorked(coll.ensureIndex({a: 1}, {unique: true}));
assert.commandWorked(coll.ensureIndex({b: 1}, {unique: true}));
assert.commandWorked(coll.ensureIndex({c: 1}, {unique: true}));
res = coll.runCommand("listIndexes", {cursor: {batchSize: 0}});
cursor = new DBCommandCursor(coll.getDB().getMongo(), res, 2);
cursor = null;
gc(); // Shell will send a killCursors message when cleaning up underlying cursor.
cursor = new DBCommandCursor(coll.getDB().getMongo(), res, 2);
assert.throws(function() { cursor.hasNext(); });
}());
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