OpenAsync method signature changed to virtual to support unit testing (…

…#1117)

Co-authored-by: Thorsten Liborius <[email protected]>

Radzen.Blazor/DialogService.cs

@@ -119,7 +119,7 @@ private void UriHelper_OnLocationChanged(object sender, Microsoft.AspNetCore.Com
         /// <param name="title">The text displayed in the title bar of the dialog.</param>
         /// <param name="parameters">The dialog parameters. Passed as property values of <typeparamref name="T" />.</param>
         /// <param name="options">The dialog options.</param>
-        public void Open<T>(string title, Dictionary<string, object> parameters = null, DialogOptions options = null) where T : ComponentBase
+        public virtual void Open<T>(string title, Dictionary<string, object> parameters = null, DialogOptions options = null) where T : ComponentBase
         {
             OpenDialog<T>(title, parameters, options);
         }
@@ -146,7 +146,7 @@ public void Refresh()
         /// <param name="parameters">The dialog parameters. Passed as property values of <typeparamref name="T" />.</param>
         /// <param name="options">The dialog options.</param>
         /// <returns>The value passed as argument to <see cref="Close" />.</returns>
-        public Task<dynamic> OpenAsync<T>(string title, Dictionary<string, object> parameters = null, DialogOptions options = null) where T : ComponentBase
+        public virtual Task<dynamic> OpenAsync<T>(string title, Dictionary<string, object> parameters = null, DialogOptions options = null) where T : ComponentBase
         {
             var task = new TaskCompletionSource<dynamic>();
             tasks.Add(task);
@@ -199,7 +199,7 @@ public void CloseSide(dynamic result = null)
         /// <param name="childContent">The content displayed in the dialog.</param>
         /// <param name="options">The dialog options.</param>
         /// <returns>The value passed as argument to <see cref="Close" />.</returns>
-        public Task<dynamic> OpenAsync(string title, RenderFragment<DialogService> childContent, DialogOptions options = null)
+        public virtual Task<dynamic> OpenAsync(string title, RenderFragment<DialogService> childContent, DialogOptions options = null)
         {
             var task = new TaskCompletionSource<dynamic>();
             tasks.Add(task);
@@ -219,7 +219,7 @@ public Task<dynamic> OpenAsync(string title, RenderFragment<DialogService> child
         /// <param name="title">The text displayed in the title bar of the dialog.</param>
         /// <param name="childContent">The content displayed in the dialog.</param>
         /// <param name="options">The dialog options.</param>
-        public void Open(string title, RenderFragment<DialogService> childContent, DialogOptions options = null)
+        public virtual void Open(string title, RenderFragment<DialogService> childContent, DialogOptions options = null)
         {
             options = options ?? new DialogOptions();