[rel/3.8] Fix ClassCleanup not called when the first test in class is ignored (#5071)

Co-authored-by: Youssef1313 <[email protected]>

Author: youssef-backport-bot

src/Adapter/MSTest.TestAdapter/Execution/TestClassInfo.cs

@@ -617,6 +617,7 @@ TestResult DoRun()
                 // If ClassInitialize method has not been executed, then we should not execute ClassCleanup
                 // Note that if there is no ClassInitialze method at all, we will still set
                 // IsClassInitializeExecuted to true in RunClassInitialize
+                // IsClassInitializeExecuted can be false if all tests in the class are ignored.
                 || !IsClassInitializeExecuted)
             {
                 return null;

src/Adapter/MSTest.TestAdapter/Execution/UnitTestRunner.cs

@@ -211,10 +211,11 @@ internal async Task<TestResult[]> RunSingleTestAsync(TestMethod testMethod, IDic
                 }
             }
 
+            ITestContext testContextForClassCleanup = PlatformServiceProvider.Instance.GetTestContext(testMethod, writer, properties, messageLogger, testContextForTestExecution.Context.CurrentTestOutcome);
+            testMethodInfo?.Parent.RunClassCleanup(testContextForClassCleanup, _classCleanupManager, testMethodInfo, testMethod, result);
+
             if (testMethodInfo?.Parent.Parent.IsAssemblyInitializeExecuted == true)
             {
-                ITestContext testContextForClassCleanup = PlatformServiceProvider.Instance.GetTestContext(testMethod, writer, properties, messageLogger, testContextForTestExecution.Context.CurrentTestOutcome);
-                testMethodInfo.Parent.RunClassCleanup(testContextForClassCleanup, _classCleanupManager, testMethodInfo, testMethod, result);
                 ITestContext testContextForAssemblyCleanup = PlatformServiceProvider.Instance.GetTestContext(testMethod, writer, properties, messageLogger, testContextForClassCleanup.Context.CurrentTestOutcome);
                 RunAssemblyCleanupIfNeeded(testContextForAssemblyCleanup, _classCleanupManager, _typeCache, result);
             }

test/IntegrationTests/MSTest.Acceptance.IntegrationTests/IgnoreTests.cs

@@ -18,9 +18,11 @@ public async Task ClassCleanup_Inheritance_WhenClassIsSkipped()
 
         // Assert
         testHostResult.AssertExitCodeIs(ExitCodes.Success);
-        testHostResult.AssertOutputContainsSummary(failed: 0, passed: 11, skipped: 7);
+        testHostResult.AssertOutputContainsSummary(failed: 0, passed: 11, skipped: 8);
 
         testHostResult.AssertOutputContains("SubClass.Method");
+        testHostResult.AssertOutputContains("SubClass.ClassCleanup");
+        testHostResult.AssertOutputDoesNotContain("SubClass.IgnoredMethod");
     }
 
     [TestMethod]
@@ -191,6 +193,11 @@ public class SubClass : IntermediateClass
     public static void SubClassCleanup()
         => Console.WriteLine("SubClass.ClassCleanup");
 
+    [TestMethod]
+    [Ignore]
+    public void IgnoredMethod()
+        => Console.WriteLine("SubClass.IgnoredMethod");
+
     [TestMethod]
     public void Method()
         => Console.WriteLine("SubClass.Method");