Use collection property count access

Funcky.Async.Test/AsyncSequence/CycleRangeTest.cs

@@ -38,7 +38,7 @@ public async Task CycleRangeEnumeratesUnderlyingEnumerableOnlyOnceAsync()
         await using var cycleRange = AsyncSequence.CycleRange(enumerateOnce);
 
         await cycleRange
-            .Take(sequence.Count() * 3)
+            .Take(sequence.Count * 3)
             .ForEachAsync(NoOperation<string>);
     }
 

Funcky.Async.Test/Extensions/AsyncEnumerableExtensions/PairwiseTest.cs

@@ -32,7 +32,7 @@ public async Task GivenASequencePairWiseReturnsTheElementsPairwise()
         var asyncSequence = Enumerable.Range(0, numberOfElements).ToAsyncEnumerable();
 
         var pairs = await asyncSequence.Pairwise().ToListAsync();
-        Assert.Equal(numberOfElements - 1, pairs.Count());
+        Assert.Equal(numberOfElements - 1, pairs.Count);
 
         foreach (var (pair, index) in pairs.Select((pair, index) => (pair, index)))
         {

Funcky.Async.Test/Extensions/AsyncEnumerableExtensions/ShuffleTest.cs

@@ -36,6 +36,6 @@ public Property AShuffleHasTheSameElementsAsTheSource(List<int> source)
 
     [Property]
     public Property AShuffleHasTheSameLengthAsTheSource(List<int> source)
-        => (source.ToAsyncEnumerable().ShuffleAsync().Result.Count() == source.Count)
+        => (source.ToAsyncEnumerable().ShuffleAsync().Result.Count == source.Count)
             .ToProperty();
 }