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

        public void TestGeoNearSphericalFalse()
        {
            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 options = GeoNearOptions.SetSpherical(false);
            var result = _collection.GeoNearAs<Place>(Query.Null, -74.0, 40.74, 100, options);
            Assert.IsTrue(result.Ok);
            Assert.AreEqual(_collection.FullName, result.Namespace);
            Assert.IsTrue(result.Stats.AverageDistance >= 0.0);
            Assert.IsTrue(result.Stats.BTreeLocations >= 0);
            Assert.IsTrue(result.Stats.Duration >= TimeSpan.Zero);
            Assert.IsTrue(result.Stats.MaxDistance >= 0.0);
            Assert.IsTrue(result.Stats.NumberScanned >= 0);
            Assert.IsTrue(result.Stats.ObjectsLoaded >= 0);
            Assert.AreEqual(3, result.Hits.Count);

            var hit0 = result.Hits[0];
            Assert.IsTrue(hit0.Distance == 0.0);
            Assert.AreEqual(-74.0, hit0.RawDocument["Location"][0].AsDouble);
            Assert.AreEqual(40.74, hit0.RawDocument["Location"][1].AsDouble);
            Assert.AreEqual("10gen", hit0.RawDocument["Name"].AsString);
            Assert.AreEqual("Office", hit0.RawDocument["Type"].AsString);

            // with spherical false "Three" is slightly closer than "Two"
            var hit1 = result.Hits[1];
            Assert.IsTrue(hit1.Distance > 0.0);
            Assert.AreEqual(-74.0, hit1.RawDocument["Location"][0].AsDouble);
            Assert.AreEqual(41.73, hit1.RawDocument["Location"][1].AsDouble);
            Assert.AreEqual("Three", hit1.RawDocument["Name"].AsString);
            Assert.AreEqual("Coffee", hit1.RawDocument["Type"].AsString);

            var hit2 = result.Hits[2];
            Assert.IsTrue(hit2.Distance > 0.0);
            Assert.IsTrue(hit2.Distance > hit1.Distance);
            Assert.AreEqual(-75.0, hit2.RawDocument["Location"][0].AsDouble);
            Assert.AreEqual(40.74, hit2.RawDocument["Location"][1].AsDouble);
            Assert.AreEqual("Two", hit2.RawDocument["Name"].AsString);
            Assert.AreEqual("Coffee", hit2.RawDocument["Type"].AsString);
        }