diff --git a/MoreLinq.Test/SortedMergeTest.cs b/MoreLinq.Test/SortedMergeTest.cs
index a9ddb706b..7434df0c4 100644
--- a/MoreLinq.Test/SortedMergeTest.cs
+++ b/MoreLinq.Test/SortedMergeTest.cs
@@ -54,6 +54,21 @@ public void TestSortedMergeDisposesOnError()
Throws.BreakException);
}
+ ///
+ /// Verify that SortedMerge do not call MoveNext method eagerly
+ ///
+ [Test]
+ public void TestSortedMergeDoNotCallMoveNextEagerly()
+ {
+ 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);
+ }
+
///
/// Verify that SortedMerge throws an exception if invoked on a null sequence.
///