31 lines
981 B
JavaScript
31 lines
981 B
JavaScript
/**
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* This tests the basic cases for implicit database creation in a sharded cluster.
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*/
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import {ShardingTest} from "jstests/libs/shardingtest.js";
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const st = new ShardingTest({shards: 2});
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const configDB = st.s.getDB('config');
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assert.eq(null, configDB.databases.findOne());
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const testDB = st.s.getDB('test');
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// Test that reads will not result into a new config.databases entry.
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assert.eq(null, testDB.user.findOne());
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assert.eq(null, configDB.databases.findOne({_id: 'test'}));
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assert.commandWorked(testDB.user.insert({x: 1}));
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const testDBDoc = configDB.databases.findOne();
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assert.eq('test', testDBDoc._id, tojson(testDBDoc));
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// Test that inserting to another collection in the same database will not modify the existing
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// config.databases entry.
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assert.commandWorked(testDB.bar.insert({y: 1}));
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assert.eq(testDBDoc, configDB.databases.findOne());
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st.s.adminCommand({enableSharding: 'foo'});
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assert.neq(null, configDB.databases.findOne({_id: 'foo'}));
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st.stop();
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