From aece77c23e2b2203ca857553bb9ab03a04d33784 Mon Sep 17 00:00:00 2001
From: Orace <pierre.lando@gmail.com>
Date: Thu, 12 Dec 2019 10:44:40 +0100
Subject: [PATCH 1/2] Add TestSortedMergeDoNotCallMoveNextEagerly

---
 MoreLinq.Test/SortedMergeTest.cs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/MoreLinq.Test/SortedMergeTest.cs b/MoreLinq.Test/SortedMergeTest.cs
index bc21204be..66f638e19 100644
--- a/MoreLinq.Test/SortedMergeTest.cs
+++ b/MoreLinq.Test/SortedMergeTest.cs
@@ -54,6 +54,17 @@ public void TestSortedMergeDisposesOnError()
             }
         }
 
+        /// <summary>
+        /// Verify that SortedMerge do not call MoveNext method eagerly
+        /// </summary>
+        [Test]
+        public void TestSortedMergeDoNotCallMoveNextEagerly()
+        {
+            var sequenceA = TestingSequence.Of(1, 3);
+            var sequenceB = MoreEnumerable.From(() => 2, () => throw new TestException());
+            sequenceA.SortedMerge(OrderByDirection.Ascending, sequenceB).Take(2).Consume();
+        }
+
         /// <summary>
         /// Verify that SortedMerge throws an exception if invoked on a <c>null</c> sequence.
         /// </summary>

From 720c020a2f45bd21c8d6eb64df5f5da078e7e70b Mon Sep 17 00:00:00 2001
From: Orace <pierre.lando@gmail.com>
Date: Tue, 27 Jun 2023 08:00:43 +0200
Subject: [PATCH 2/2] Update MoreLinq.Test/SortedMergeTest.cs

Co-authored-by: Atif Aziz <code@raboof.com>
---
 MoreLinq.Test/SortedMergeTest.cs | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/MoreLinq.Test/SortedMergeTest.cs b/MoreLinq.Test/SortedMergeTest.cs
index 66f638e19..8a26838ab 100644
--- a/MoreLinq.Test/SortedMergeTest.cs
+++ b/MoreLinq.Test/SortedMergeTest.cs
@@ -60,9 +60,13 @@ public void TestSortedMergeDisposesOnError()
         [Test]
         public void TestSortedMergeDoNotCallMoveNextEagerly()
         {
-            var sequenceA = TestingSequence.Of(1, 3);
-            var sequenceB = MoreEnumerable.From(() => 2, () => throw new TestException());
-            sequenceA.SortedMerge(OrderByDirection.Ascending, sequenceB).Take(2).Consume();
+            using var sequenceA = TestingSequence.Of(1, 3);
+            using var sequenceB = MoreEnumerable.From(() => 2, () => throw new TestException())
+                                                .AsTestingSequence();
+
+            var result = sequenceA.SortedMerge(OrderByDirection.Ascending, sequenceB).Take(2);
+
+            Assert.That(() => result.Consume(), Throws.Nothing);
         }
 
         /// <summary>