DOC-2540 added doc code samples for geospatial (#288)

Author: andy-stark-redis

tests/Doc/Geo_tutorial.cs

@@ -0,0 +1,87 @@
+// EXAMPLE: geo_tutorial
+// HIDE_START
+
+using NRedisStack.Tests;
+using StackExchange.Redis;
+
+// HIDE_END
+
+// REMOVE_START
+namespace Doc;
+[Collection("DocsTests")]
+// REMOVE_END
+
+// HIDE_START
+public class Geo_tutorial
+{
+
+    [SkipIfRedis(Is.OSSCluster)]
+    public void run()
+    {
+        var muxer = ConnectionMultiplexer.Connect("localhost:6379");
+        var db = muxer.GetDatabase();
+        //REMOVE_START
+        // Clear any keys here before using them in tests.
+        db.KeyDelete("bikes:rentable");
+        //REMOVE_END
+        // HIDE_END
+
+
+        // STEP_START geoadd
+        bool res1 = db.GeoAdd("bikes:rentable", -122.27652, 37.805186, "station:1");
+        Console.WriteLine(res1);    // >>> True
+
+        bool res2 = db.GeoAdd("bikes:rentable", -122.2674626, 37.8062344, "station:2");
+        Console.WriteLine(res2);    // >>> True
+
+        bool res3 = db.GeoAdd("bikes:rentable", -122.2469854, 37.8104049, "station:3");
+        Console.WriteLine(res3);    // >>> True
+        // STEP_END
+
+        // Tests for 'geoadd' step.
+        // REMOVE_START
+        Assert.True(res1);
+        Assert.True(res2);
+        Assert.True(res3);
+        // REMOVE_END
+
+
+        // STEP_START geosearch
+        GeoRadiusResult[] res4 = db.GeoSearch("bikes:rentable",
+            -122.27652,
+            37.805186,
+            new GeoSearchCircle(5, GeoUnit.Kilometers)
+        );
+
+        foreach (GeoRadiusResult member in res4)
+        {
+            Console.WriteLine($"Member: '{member.Member}', distance: {member.Distance}, position: {member.Position}");
+        }
+        // >>> Member: 'station:1', distance: 0.0001, position: -122.27652043104172 37.80518485897756
+        // >>> Member: 'station:2', distance: 0.8047, position: -122.26745992898941 37.80623423353753
+        // >>> Member: 'station:3', distance: 2.6596, position: -122.24698394536972 37.81040384984464
+        // STEP_END
+
+        // Tests for 'geosearch' step.
+        // REMOVE_START
+        Assert.Equal(3, res4.Length);
+        Assert.Equal(
+            "Member: 'station:1', distance: 0.0001, position: -122.27652043104172 37.80518485897756",
+            $"Member: '{res4[0].Member}', distance: {res4[0].Distance}, position: {res4[0].Position}"
+        );
+        Assert.Equal(
+            "Member: 'station:2', distance: 0.8047, position: -122.26745992898941 37.80623423353753",
+            $"Member: '{res4[1].Member}', distance: {res4[1].Distance}, position: {res4[1].Position}"
+        );
+        Assert.Equal(
+            "Member: 'station:3', distance: 2.6596, position: -122.24698394536972 37.81040384984464",
+            $"Member: '{res4[2].Member}', distance: {res4[2].Distance}, position: {res4[2].Position}"
+        );
+        // REMOVE_END
+
+
+        // HIDE_START
+    }
+}
+// HIDE_END
+