Added a Views tests to the C# regression tests

Author: rekhoff

sdks/csharp/examples~/regression-tests/client/Program.cs

@@ -133,6 +133,15 @@ void OnSubscriptionApplied(SubscriptionEventContext context)
         ValidateBTreeIndexes(ctx);
         waiting--;
     });
+    
+    // Views test
+    Log.Debug("Calling View");
+    var viewRows = context.Db.GetUserByContext.Iter().FirstOrDefault();
+    Debug.Assert(viewRows != null && viewRows.IdentityString == context.Identity?.ToString());
+    
+    Log.Debug("Calling Anonymous View");
+    var anonViewRows = context.Db.GetUserByString.RemoteQuery("Where IdentityString = identityStringExample");
+    Debug.Assert(anonViewRows != null && anonViewRows.Result.Length > 0);
 }
 
 System.AppDomain.CurrentDomain.UnhandledException += (sender, args) =>

sdks/csharp/examples~/regression-tests/client/module_bindings/Reducers/ClientConnected.g.cs

@@ -14,6 +14,14 @@ public partial struct ExampleData
         [SpacetimeDB.Index.BTree]
         public uint Indexed;
     }
+    
+    [SpacetimeDB.Table(Name = "User", Public = true)]
+    public partial struct User
+    {
+        [PrimaryKey]
+        public string IdentityString;
+        public bool GeneratedByConnectedClient;
+    }
 
     [SpacetimeDB.View(Name = "GetExampleDataById", Public = true)]
     public static ExampleData? GetExampleDataById(ViewContext ctx)//, uint id)
@@ -26,6 +34,18 @@ public partial struct ExampleData
     {
         return ctx.Db.ExampleData.Id.Find(0);
     }
+    
+    [SpacetimeDB.View(Name = "GetUserByContext", Public = true)]
+    public static User? GetUserByContext(ViewContext ctx)
+    {
+        return ctx.Db.User.IdentityString.Find(ctx.Sender.ToString());
+    }
+
+    [SpacetimeDB.View(Name = "GetUserByString", Public = true)]
+    public static User? GetUserByString(AnonymousViewContext ctx) //, string identityString)
+    {
+        return ctx.Db.User.IdentityString.Find("identityStringExample");
+    }
 
     [SpacetimeDB.Reducer]
     public static void Delete(ReducerContext ctx, uint id)
@@ -44,4 +64,38 @@ public static void ThrowError(ReducerContext ctx, string error)
     {
         throw new Exception(error);
     }
+    
+    [SpacetimeDB.Reducer]
+    public static void CreateNewUser(ReducerContext ctx, string identityString)
+    {
+        ctx.Db.User.Insert(
+            new User
+            {
+                IdentityString = identityString,
+                GeneratedByConnectedClient = false,
+            }
+        );
+    }
+    
+    [SpacetimeDB.Reducer(ReducerKind.ClientConnected)]
+    public static void ClientConnected(ReducerContext ctx)
+    {
+        Log.Info($"Connect {ctx.Sender}");
+
+        if (ctx.Db.User.IdentityString.Find(ctx.Sender.ToString()!) is User thisUser)
+        {
+            ctx.Db.User.IdentityString.Update(thisUser);
+        }
+        else
+        {
+            // If this is a new User, create a `User` object for the `IdentityString`,
+            ctx.Db.User.Insert(
+                new User
+                {
+                    IdentityString = ctx.Sender.ToString()!,
+                    GeneratedByConnectedClient = true,
+                }
+            );
+        }
+    }
 }