Added test, that excel saved a file

Author: seeste

GithubActionsHelloWorld/Program.cs

@@ -13,14 +13,14 @@ public static async Task Main(string[] args)
             CreateExcelDocument();
         }
 
-        private static void CreateExcelDocument()
+        public static string CreateExcelDocument()
         {
-            Microsoft.Office.Interop.Excel.Application excelApplication = null;
+            Application excelApplication = null;
 
             try
             {
                 excelApplication = new
-                    Microsoft.Office.Interop.Excel.Application();
+                    Application();
                 Workbook excelWorkBook = excelApplication.Workbooks.Add();
                 Worksheet worksheet = (Worksheet)excelWorkBook.Worksheets[1];
                 worksheet.Cells[1, 1] = "Product Id";
@@ -32,10 +32,12 @@ private static void CreateExcelDocument()
                 var path = Path.GetTempFileName() + ".xlsx";
                 Console.WriteLine(path);
                 excelWorkBook.SaveAs(Path.Combine(path));
+                return path;
             }
             catch (Exception ex)
             {
                 Console.WriteLine(ex.Message);
+                return ex.Message;
             }
             finally
             {

GithubActionsHelloWorldTests/GithubActionsHelloWorldTest.cs

@@ -1,16 +1,17 @@
 using GithubActionsHelloWorld;
-using System.Threading.Tasks;
 using Xunit;
 
 namespace GithubActionsHelloWorldTests
 {
     public class GithubActionsHelloWorldTest
     {
         [Fact]
-        public async Task Main_ShouldRunWithoutError()
+        public void Main_ShouldRunWithoutError()
         {
             var args = new string[] { "WrongParameterCount" };
-            await Program.Main(args);
+            var path = Program.CreateExcelDocument();
+
+            Assert.True(System.IO.File.Exists(path));
         }
     }
 }