Catch Multiple Exceptions in C#: update to .NET 10

exception-handling/CatchMultipleExceptions/CatchMultipleExceptions/CatchExamples.cs

@@ -1,10 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace CatchMultipleExceptionsAtOnes
+namespace CatchMultipleExceptionsAtOnes
 {
     public class CatchExamples
     {
@@ -42,9 +36,7 @@ public static int SingleCatchWithWhen(string numeratorParam, string denominatorP
 
                 return (int)(numerator / denominator);
             }
-            catch (Exception ex) when (ex is FormatException ||
-                                       ex is DivideByZeroException ||
-                                       ex is OverflowException)
+            catch (Exception ex) when (ex is FormatException or DivideByZeroException or OverflowException)
             {
                 return -1;
             }
@@ -72,6 +64,8 @@ public static int SingleCatchSwitchCase(string numeratorParam, string denominato
                     case OverflowException:
                         Console.WriteLine("Overflow Exception!");
                         break;
+                    default:
+                        throw;
                 }
             }
 
@@ -102,5 +96,39 @@ public static int SingleCatchSwitchPattern(string numeratorParam, string denomin
 
             return -1;
         }
+
+        public static List<string> FilterRunsBeforeUnwinding()
+        {
+            var steps = new List<string>();
+
+            try
+            {
+                ThrowFromInnerMethod(steps);
+            }
+            catch (FormatException) when (Record(steps, "filter"))
+            {
+                steps.Add("catch");
+            }
+
+            return steps;
+        }
+
+        private static void ThrowFromInnerMethod(List<string> steps)
+        {
+            try
+            {
+                throw new FormatException();
+            }
+            finally
+            {
+                steps.Add("inner finally");
+            }
+        }
+
+        private static bool Record(List<string> steps, string step)
+        {
+            steps.Add(step);
+            return true;
+        }
     }
 }

exception-handling/CatchMultipleExceptions/CatchMultipleExceptions/CatchMultipleExceptions.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

exception-handling/CatchMultipleExceptions/TestProject/TestProject.csproj

@@ -1,21 +1,21 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="2.2.7" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.2.7" />
-    <PackageReference Include="coverlet.collector" Version="3.1.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="4.5.1" />
+    <PackageReference Include="MSTest.TestFramework" Version="4.5.1" />
+    <PackageReference Include="coverlet.collector" Version="10.1.0" />
   </ItemGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\CatchMultipleExceptionsAtOnes\CatchMultipleExceptions.csproj" />
+    <ProjectReference Include="..\CatchMultipleExceptions\CatchMultipleExceptions.csproj" />
   </ItemGroup>
 
 </Project>

exception-handling/CatchMultipleExceptions/TestProject/TryCatchUnitTest.cs

@@ -59,5 +59,13 @@ public void WhenOverflowError_ThenInCorrectOutput()
 
             Assert.IsTrue(result1 == -1 && result2 == -1 && result3 == -1 && result4 == -1);
         }
+
+        [TestMethod]
+        public void WhenFilterMatches_ThenFilterRunsBeforeInnerFinally()
+        {
+            var steps = CatchExamples.FilterRunsBeforeUnwinding();
+
+            CollectionAssert.AreEqual(new[] { "filter", "inner finally", "catch" }, steps);
+        }
     }
 }