MongoDB.DriverUnitTests.MongoCollectionTests.TestFindWithinCircleSphericalTrue C# (CSharp) Метод

        public void TestFindWithinCircleSphericalTrue()
        {
            if (_server.BuildInfo.Version >= new Version(1, 7, 0, 0))
            {
                if (_collection.Exists()) { _collection.Drop(); }
                _collection.Insert(new Place { Location = new[] { -74.0, 40.74 }, Name = "10gen", Type = "Office" });
                _collection.Insert(new Place { Location = new[] { -75.0, 40.74 }, Name = "Two", Type = "Coffee" });
                _collection.Insert(new Place { Location = new[] { -74.0, 41.73 }, Name = "Three", Type = "Coffee" });
                _collection.CreateIndex(IndexKeys.GeoSpatial("Location"));

                var query = Query.WithinCircle("Location", -74.0, 40.74, 0.1, true); // spherical
                var hits = _collection.Find(query).ToArray();
                Assert.AreEqual(3, hits.Length);
                // note: the hits are unordered

                query = Query.WithinCircle("Location", -74.0, 40.74, 0.01, false); // smaller radius
                hits = _collection.Find(query).ToArray();
                Assert.AreEqual(1, hits.Length);

                query = Query.WithinCircle("Location", -174.0, 40.74, 0.1, false); // different part of the world
                hits = _collection.Find(query).ToArray();
                Assert.AreEqual(0, hits.Length);
            }
        }