Move distributed transaction test to OleTxTests (#74747)

NonMsdtcPromoterTests.PSPENonMsdtcGetPromoterTypeMSDTC was triggering
an MSDTC distributed transaction on Windows, but without the proper
checks/resiliency. Moved to OleTxTests.

Fixes #74170

src/libraries/System.Transactions.Local/tests/NonMsdtcPromoterTests.cs

@@ -21,7 +21,6 @@ public class NonMsdtcPromoterTests : IDisposable
         private static MethodInfo s_setDistributedTransactionIdentifierMethodInfo;
         private static MethodInfo s_getPromotedTokenMethodInfo;
         private static PropertyInfo s_promoterTypePropertyInfo;
-        private static FieldInfo s_promoterTypeDtcFieldInfo;
 
         public NonMsdtcPromoterTests()
         {
@@ -51,17 +50,12 @@ private static void VerifySoftDependencies()
 
                 // And the PropertyInfo objects for PromoterType
                 s_promoterTypePropertyInfo = typeof(Transaction).GetTypeInfo().GetProperty("PromoterType", typeof(Guid));
-
-                // And the FieldInfo for TransactionInterop.PromoterTypeDtc
-                s_promoterTypeDtcFieldInfo = typeof(TransactionInterop).GetTypeInfo().GetField("PromoterTypeDtc", BindingFlags.Public | BindingFlags.Static);
             }
 
             bool allMethodsAreThere = ((s_enlistPromotableSinglePhaseMethodInfo != null) &&
                 (s_setDistributedTransactionIdentifierMethodInfo != null) &&
                 (s_getPromotedTokenMethodInfo != null) &&
-                (s_promoterTypePropertyInfo != null) &&
-                (s_promoterTypeDtcFieldInfo != null)
-                );
+                (s_promoterTypePropertyInfo != null));
             Assert.True(allMethodsAreThere, "At least one of the expected new methods or properties is not implemented by the available System.Transactions.");
         }
 
@@ -339,14 +333,6 @@ private static byte[] TxPromotedToken(Transaction txToGet)
             return (byte[])s_getPromotedTokenMethodInfo.Invoke(txToGet, null);
         }
 
-        private static Guid PromoterTypeDtc
-        {
-            get
-            {
-                return (Guid)s_promoterTypeDtcFieldInfo.GetValue(null);
-            }
-        }
-
         #endregion
 
         #region NonMSDTCPromoterEnlistment
@@ -1706,45 +1692,6 @@ private static void TestCase_PromoterType()
             TestPassed();
         }
 
-        private static void TestCase_PromoterTypeMSDTC()
-        {
-            string testCaseDescription = "TestCase_PromoterTypeMSDTC";
-
-            Trace("**** " + testCaseDescription + " ****");
-
-            AutoResetEvent volCompleted = new AutoResetEvent(false);
-            MyEnlistment vol = null;
-
-            try
-            {
-                using (TransactionScope ts = new TransactionScope())
-                {
-                    Assert.Equal(Guid.Empty, TxPromoterType(Transaction.Current));
-
-                    vol = CreateVolatileEnlistment(volCompleted);
-
-                    // Force MSDTC promotion.
-                    TransactionInterop.GetDtcTransaction(Transaction.Current);
-
-                    // TransactionInterop.PromoterTypeDtc
-                    Assert.Equal(PromoterTypeDtc, TxPromoterType(Transaction.Current));
-
-                    ts.Complete();
-                }
-            }
-            catch (Exception ex)
-            {
-                Trace(string.Format("Caught unexpected exception {0}:{1}", ex.GetType().ToString(), ex.ToString()));
-                return;
-            }
-
-            Assert.True(volCompleted.WaitOne(TimeSpan.FromSeconds(5)));
-
-            Assert.True(vol.CommittedOutcome);
-
-            TestPassed();
-        }
-
         private static void TestCase_FailPromotableSinglePhaseNotificationCalls()
         {
             string testCaseDescription = "TestCase_FailPromotableSinglePhaseNotificationCalls";
@@ -2133,16 +2080,6 @@ public void PSPENonMsdtcGetPromoterType()
             TestCase_PromoterType();
         }
 
-        /// <summary>
-        /// PSPE Non-MSDTC Get PromoterType.
-        /// </summary>
-        [Fact]
-        public void PSPENonMsdtcGetPromoterTypeMSDTC()
-        {
-            // get_PromoterType
-            TestCase_PromoterTypeMSDTC();
-        }
-
         /// <summary>
         /// PSPE Non-MSDTC Fail PromotableSinglePhaseNotification Calls.
         /// </summary>

src/libraries/System.Transactions.Local/tests/OleTxNonWindowsUnsupportedTests.cs

@@ -55,10 +55,15 @@ public void TransmitterPropagationToken()
 
     [Fact]
     public void GetWhereabouts()
-        => Assert.Throws<PlatformNotSupportedException>(() => TransactionInterop.GetWhereabouts());
+        => Assert.Throws<PlatformNotSupportedException>(TransactionInterop.GetWhereabouts);
 
     [Fact]
     public void GetExportCookie()
-        => Assert.Throws<PlatformNotSupportedException>(() => TransactionInterop.GetExportCookie(
-            new CommittableTransaction(), new byte[200]));
+        => Assert.Throws<PlatformNotSupportedException>(() =>
+            TransactionInterop.GetExportCookie(new CommittableTransaction(), new byte[200]));
+
+    [Fact]
+    public void GetDtcTransaction()
+        => Assert.Throws<PlatformNotSupportedException>(() =>
+            TransactionInterop.GetDtcTransaction(new CommittableTransaction()));
 }

src/libraries/System.Transactions.Local/tests/OleTxTests.cs

@@ -433,6 +433,34 @@ public void GetExportCookie()
             Assert.Equal(tx.TransactionInformation.DistributedIdentifier, tx2.TransactionInformation.DistributedIdentifier);
         });
 
+    // Test currently skipped, #74745
+    private void GetDtcTransaction()
+        => Test(() =>
+        {
+            using var tx = new CommittableTransaction();
+
+            var outcomeReceived = new AutoResetEvent(false);
+
+            var enlistment = new TestEnlistment(
+                Phase1Vote.Prepared, EnlistmentOutcome.Committed, outcomeReceived: outcomeReceived);
+
+            Assert.Equal(Guid.Empty, tx.PromoterType);
+
+            tx.EnlistVolatile(enlistment, EnlistmentOptions.None);
+
+            // Forces promotion to MSDTC, returns an ITransaction for use only with System.EnterpriseServices.
+            _ = TransactionInterop.GetDtcTransaction(tx);
+
+            Assert.Equal(TransactionStatus.Active, tx.TransactionInformation.Status);
+            Assert.Equal(TransactionInterop.PromoterTypeDtc, tx.PromoterType);
+
+            tx.Commit();
+
+            Assert.True(outcomeReceived.WaitOne(Timeout));
+            Assert.Equal(EnlistmentOutcome.Committed, enlistment.Outcome);
+            Retry(() => Assert.Equal(TransactionStatus.Committed, tx.TransactionInformation.Status));
+        });
+
     private static void Test(Action action)
     {
         // Temporarily skip on 32-bit where we have an issue.