fix build error for test project

2 files changed, 21 insertions, 11 deletions

diff --git a/src/main.test/Mock/Services/InputService.cs b/src/main.test/Mock/Services/InputService.cs
index 3771cab..58e8d2b 100644
--- a/src/main.test/Mock/Services/InputService.cs
+++ b/src/main.test/Mock/Services/InputService.cs
@@ -43,25 +43,31 @@ namespace PKISharp.WACS.UnitTests.Mock.Services
                 FirstOrDefault(c => string.Equals(c.Command, input, StringComparison.CurrentCultureIgnoreCase)).Item);
         }
 
-        public Task<TResult> ChooseFromMenu<TResult>(string what, List<Choice<TResult>> choices)
-        {
-            var input = GetNextInput();
-            return Task.
-                FromResult(choices.
-                FirstOrDefault(c => string.Equals(c.Command, input, StringComparison.CurrentCultureIgnoreCase)).Item);
-        }
-
         public string FormatDate(DateTime date) => "";
         public Task<bool> PromptYesNo(string message, bool defaultOption)
         {
             var input = GetNextInput();
             return Task.FromResult(string.Equals(input, "y", StringComparison.CurrentCultureIgnoreCase));
         }
-        public Task<string> ReadPassword(string what) => Task.FromResult(GetNextInput());
+        public Task<string?> ReadPassword(string what) => Task.FromResult(GetNextInput());
         public Task<string> RequestString(string what) => Task.FromResult(GetNextInput());
         public Task<string> RequestString(string[] what) => Task.FromResult(GetNextInput());
-        public void Show(string label, string value = null, bool first = false, int level = 0) { }
+        public void Show(string? label, string? value = null, bool first = false, int level = 0) { }
         public Task<bool> Wait(string message = "") => Task.FromResult(true);
         public Task WritePagedList(IEnumerable<Choice> listItems) => Task.CompletedTask;
+        public Task<TResult> ChooseFromMenu<TResult>(string what, List<Choice<TResult>> choices, Func<string, Choice<TResult>>? unexpected = null)
+        {
+            var input = GetNextInput();
+            var choice = choices.FirstOrDefault(c => string.Equals(c.Command, input, StringComparison.CurrentCultureIgnoreCase));
+            if (choice == null && unexpected != null)
+            {
+                choice = unexpected(input);
+            }
+            if (choice != null)
+            {
+                return Task.FromResult(choice.Item);
+            }
+            throw new Exception();
+        }
     }
 }
diff --git a/src/main.test/wacs.test.csproj b/src/main.test/wacs.test.csproj
index f691a52..bbbb8b4 100644
--- a/src/main.test/wacs.test.csproj
+++ b/src/main.test/wacs.test.csproj
@@ -9,7 +9,11 @@
 
     <RootNamespace>PKISharp.WACS.UnitTests</RootNamespace>
   </PropertyGroup>
-
+  
+  <PropertyGroup>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+  
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="2.0.0" />