minor fix in New-AzureRmSignalR

Author: sergey-shandar

src/ResourceManager/SignalR/Commands.SignalR/Cmdlets/NewAzureRmSignalR.cs

@@ -21,7 +21,6 @@
 using System.Collections.Generic;
 using System.Management.Automation;
 using System.Threading.Tasks;
-using System;
 using Microsoft.Azure.Commands.SignalR.Strategies.ResourceManager;
 using System.Threading;
 using Microsoft.Azure.Commands.SignalR.Strategies.SignalRRp;
@@ -107,14 +106,16 @@ public Parameters(NewAzureRmSignalR cmdlet)
             public async Task<ResourceConfig<SignalRResource>> CreateConfigAsync()
             {
                 _cmdlet.ResourceGroupName = _cmdlet.ResourceGroupName ?? _cmdlet.Name;
-                var resourceGroup = ResourceGroupStrategy.CreateResourceGroupConfig(_cmdlet.ResourceGroupName);
+
+                var resourceGroup = ResourceGroupStrategy.CreateResourceGroupConfig(
+                    _cmdlet.ResourceGroupName);
+
                 return SignalRStrategy.Strategy.CreateResourceConfig(
                     resourceGroup: resourceGroup,
                     name: _cmdlet.Name,
-                    createModel: engine =>
-                    new SignalRResource(
+                    createModel: engine => new SignalRResource(
                         tags: _cmdlet.Tag,
-                        signalrsku: new ResourceSku(_cmdlet.Sku),
+                        signalrsku: _cmdlet.Sku == null ? null : new ResourceSku(name: _cmdlet.Sku),
                         hostNamePrefix: _cmdlet.HostNamePrefix));
             }
         }

src/ResourceManager/SignalR/Commands.SignalR/Strategies/CmdletExtensions.cs

@@ -40,9 +40,10 @@ public IEnumerable<KeyValuePair<string, object>> Parameters
                     return typeof(T)
                         .GetProperties()
                         .Where(p => p
-                            .GetCustomAttributes(false)
-                            .OfType<ParameterAttribute>()
-                            .Any(a => a.ParameterSetName == psName))
+                                .GetCustomAttributes(false)
+                                .OfType<ParameterAttribute>()
+                                .Any(a => a.ParameterSetName == psName)
+                            && p.Name != "DefaultProfile")
                         .Select(p => new KeyValuePair<string, object>(p.Name, p.GetValue(_Cmdlet)));
                 }
             }

src/ResourceManager/SignalR/Commands.SignalR/Strategies/SignalRRp/SignalRStrategy.cs

@@ -8,7 +8,7 @@ static class SignalRStrategy
     {
         public static ResourceStrategy<SignalRResource> Strategy { get; }
             = ResourceStrategy.Create(
-                type: new ResourceType("Microsoft.SignalR", "signalRs"),
+                type: new ResourceType("Microsoft.SignalRService", "signalRs"),
                 getOperations: (SignalRManagementClient client) => client.Signalr,
                 getAsync: (o, p) => o.GetAsync(p.ResourceGroupName, p.Name, p.CancellationToken),
                 createOrUpdateAsync: (o, p) => o.CreateOrUpdateAsync(