text: 'use strict';
  
  const setupDatabase = require('../shared').setupDatabase;
  
  describe('examples.createIndex:', function () {
    let client;
    let collection;
  
    before(async function () {
      await setupDatabase(this.configuration);
    });
  
    beforeEach(async function () {
      client = await this.configuration.newClient().connect();
      collection = client.db(this.configuration.db).collection('createIndexExample');
    });
  
    afterEach(async function () {
      await client.close();
      client = undefined;
      collection = undefined;
    });
  
    it('supports building simple ascending index', {
      metadata: { requires: { topology: ['single'] } },
      test: async function () {
        // Start createIndex example 1
        await collection.createIndex({ score: 1 });
        // End createIndex example 1
      }
    });
  
    it('supports building multikey index with partial filter expression', {
      metadata: { requires: { topology: ['single'], mongodb: '>=3.2.x' } },
      test: async function () {
        // Start createIndex example 2
        await collection.createIndex(
          { cuisine: 1, name: 1 },
          { partialFilterExpression: { rating: { $gt: 5 } } }
        );
        // End createIndex example 2
      }
    });
  });
  