TestNewerDotnetVersionAssembly done

Author: ptupitsyn

modules/platforms/dotnet/Apache.Ignite.Tests/Compute/DotNetJobs.cs

@@ -45,13 +45,15 @@ public static class DotNetJobs
 
     public static async Task<string> WriteNewerDotnetJobsAssembly(string tempDirPath, string asmName)
     {
-        var targetPath = Path.Combine(tempDirPath, asmName + ".dll");
+        var targetFile = Path.Combine(tempDirPath, asmName + ".dll");
+
+        await using var fileStream = File.Create(targetFile);
 
         await Assembly.GetExecutingAssembly()
             .GetManifestResourceStream("Apache.Ignite.Tests.Compute.Executor.NewerDotnetJobs.NewerDotnetJobs.dll")!
-            .CopyToAsync(File.Create(targetPath));
+            .CopyToAsync(fileStream);
 
-        return targetPath;
+        return targetFile;
     }
 
     public class AddOneJob : IComputeJob<int, int>

modules/platforms/dotnet/Apache.Ignite.Tests/Compute/PlatformComputeTests.cs

@@ -288,9 +288,16 @@ public async Task TestPlatformExecutorWithOldServerThrowsCompatibilityError()
     }
 
     [Test]
-    public async Task TestNewerDotnetVersionAssembly()
+    public void TestNewerDotnetVersionAssembly()
     {
-        await ExecJobAsync(DotNetJobs.NewerDotNetJob, "test");
+        var ex = Assert.ThrowsAsync<IgniteException>(async() => await ExecJobAsync(DotNetJobs.NewerDotNetJob, "test"));
+
+        StringAssert.StartsWith(
+            ".NET job failed: Failed to load type 'NewerDotnetJobs.EchoJob, NewerDotnetJobs' " +
+            "because it depends on a newer .NET runtime version (required: 10, current: 8",
+            ex.Message);
+
+        Assert.AreEqual("IGN-COMPUTE-9", ex.CodeAsString);
     }
 
     private async Task<IClusterNode> GetClusterNodeAsync(string? suffix = null)