mirror of https://github.com/mongodb/mongo
68 lines
2.5 KiB
JavaScript
68 lines
2.5 KiB
JavaScript
// Cannot implicitly shard accessed collections because of extra shard key index in sharded
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// collection.
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// @tags: [assumes_no_implicit_index_creation]
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(function() {
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'use strict';
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const t = db.drop_index;
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t.drop();
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/**
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* Extracts index names from listIndexes result.
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*/
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function getIndexNames(cmdRes) {
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return t.getIndexes().map(spec => spec.name);
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}
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/**
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* Checks that collection contains the given list of non-id indexes and nothing else.
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*/
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function assertIndexes(expectedIndexNames, msg) {
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const actualIndexNames = getIndexNames();
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const testMsgSuffix = () => msg + ': expected ' + tojson(expectedIndexNames) + ' but got ' +
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tojson(actualIndexNames) + ' instead.';
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assert.eq(expectedIndexNames.length + 1,
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actualIndexNames.length,
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'unexpected number of indexes after ' + testMsgSuffix());
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assert(actualIndexNames.includes('_id_'),
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'_id index missing after ' + msg + ': ' + tojson(actualIndexNames));
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for (let expectedIndexName of expectedIndexNames) {
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assert(actualIndexNames.includes(expectedIndexName),
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expectedIndexName + ' index missing after ' + testMsgSuffix());
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}
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}
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assert.commandWorked(t.insert({_id: 1, a: 2, b: 3, c: 1, d: 1, e: 1}));
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assertIndexes([], 'inserting test document');
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assert.commandWorked(t.createIndex({a: 1}));
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assert.commandWorked(t.createIndex({b: 1}));
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assert.commandWorked(t.createIndex({c: 1}));
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assert.commandWorked(t.createIndex({d: 1}));
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assert.commandWorked(t.createIndex({e: 1}));
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assertIndexes(['a_1', 'b_1', 'c_1', 'd_1', 'e_1'], 'creating indexes');
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// Drop single index by name.
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// Collection.dropIndex() throws if the dropIndexes command fails.
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t.dropIndex(t._genIndexName({a: 1}));
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assertIndexes(['b_1', 'c_1', 'd_1', 'e_1'], 'dropping {a: 1} by name');
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// Drop single index by key pattern.
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t.dropIndex({b: 1});
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assertIndexes(['c_1', 'd_1', 'e_1'], 'dropping {b: 1} by key pattern');
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// Not allowed to drop _id index.
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assert.commandFailedWithCode(t.dropIndex('_id_'), ErrorCodes.InvalidOptions);
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assert.commandFailedWithCode(t.dropIndex({_id: 1}), ErrorCodes.InvalidOptions);
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// Ensure you can recreate indexes, even if you don't use dropIndex method.
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// Prior to SERVER-7168, the shell used to cache names of indexes created using
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// Collection.ensureIndex().
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assert.commandWorked(t.createIndex({a: 1}));
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assertIndexes(['a_1', 'c_1', 'd_1', 'e_1'], 'recreating {a: 1}');
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// Drop single index with dropIndexes().
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assert.commandWorked(t.dropIndexes(['c_1']));
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assertIndexes(['a_1', 'd_1', 'e_1'], 'dropping {c: 1}');
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}());
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