Make sure --filedeployment is counted as a valid operation

nanoFirmwareFlasher.Tests/FileDeploymentTests.cs

@@ -0,0 +1,51 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using nanoFirmwareFlasher.Tests.Helpers;
+using nanoFramework.Tools.FirmwareFlasher;
+
+namespace nanoFirmwareFlasher.Tests
+{
+    /// <summary>
+    /// Verify that the options to nanoff are passed correctly to the low-level classes.
+    /// This cannot be done for the update of firmware, at least not for ESP32, as that
+    /// requires a connection to a real device.
+    /// </summary>
+    [TestClass]
+    [TestCategory("File deployment")]
+    [DoNotParallelize] // because of static variables in the programs
+    public sealed class FileDeploymentTests
+    {
+        public TestContext TestContext { get; set; } = null!;
+
+        [TestMethod]
+        public void FileDeployment_Recognizes_ValidOperation()
+        {
+            #region Setup
+            using var output = new OutputWriterHelper();
+            string testDirectory = TestDirectoryHelper.GetTestDirectory(TestContext);
+            string deployJsonPath = Path.Combine(testDirectory, "deploy.json");
+
+            File.WriteAllText(deployJsonPath, @"{
+    ""serialport"":""COM3"",
+    ""files"": [{
+        ""DestinationFilePath"": ""I:\\deploy.json"",
+        ""SourceFilePath"": """ + deployJsonPath.Replace("\\", "\\\\") + @"""
+    }]
+}");
+            #endregion
+
+            #region Deploy content files
+            int actual = Program.Main(["--filedeployment", deployJsonPath])
+                    .GetAwaiter().GetResult();
+
+            Assert.IsFalse(output.Output.Contains("No operation was performed with the options supplied."));
+
+            #endregion
+        }
+    }
+}

nanoFirmwareFlasher.Tool/Program.cs

@@ -764,6 +764,7 @@ static async Task RunOptionsAndReturnExitCodeAsync(Options o)
                     try
                     {
                         _exitCode = await deploy.DeployAsync();
+                        operationPerformed = true;
                     }
                     catch (Exception ex)
                     {