Recyclable.Collections/Recyclable.Collections.Benchmarks/RecyclableCollectionsBenchmarks.List.cs

using BenchmarkDotNet.Attributes;

namespace Recyclable.Collections.Benchmarks
{
	public partial class RecyclableCollectionsBenchmarks : BenchmarkBase
	{
		//[Benchmark(Baseline = false)]
		public void List_Create()
		{
			var list = new List<object>();
			DoNothing(list);
		}

		//[Benchmark(Baseline = false)]
		public void List_Create_WithCapacity()
		{
			var list = new List<object>(checked((int)TestObjectCount));
			DoNothing(list);
		}

		//[Benchmark(Baseline = false)]
		public void List_Add()
		{
			var data = TestObjects;
			var dataCount = TestObjectCount;
			var list = new List<object>();
			for (var i = 0; i < dataCount; i++)
			{
				list.Add(data[i]);
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_Add_WithCapacity()
		{
			var data = TestObjects;
			var dataCount = TestObjectCount;
			var list = new List<object>(checked((int)dataCount));
			for (var i = 0; i < dataCount; i++)
			{
				list.Add(data[i]);
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_AddRangeWhenSourceIsArray()
		{
			var data = TestObjects;
			var list = new List<object>();
			list.AddRange(data);
		}

		//[Benchmark(Baseline = false)]
		public void List_AddRangeWhenSourceIsList()
		{
			var data = TestObjectsAsList;
			var list = new List<object>();
			list.AddRange(data);
		}

		//[Benchmark(Baseline = false)]
		public void List_AddRangeWhenSourceIsIList()
		{
			var data = (IList<object>)TestObjectsAsRecyclableList;
			var list = new List<object>();
			list.AddRange(data);
		}

		//[Benchmark(Baseline = false)]
		public void List_AddRangeWhenSourceIsIEnumerable()
		{
			var data = TestObjectsAsIEnumerable;
			var list = new List<object>();
			list.AddRange(data);
		}

		//[Benchmark(Baseline = false)]
		public void List_AddRange_WithCapacity()
		{
			var data = TestObjects;
			var dataCount = TestObjectCount;
			var list = new List<object>(checked((int)dataCount));
			list.AddRange(data);
		}

		//[Benchmark(Baseline = false)]
		public void List_SetItem()
		{
			var data = TestObjectsAsList;
			var dataCount = TestObjectCount;
			for (var i = 0; i < dataCount; i++)
			{
				data[i] = TestObjects[i];
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_GetItem()
		{
			var data = TestObjectsAsList;
			var dataCount = TestObjectCount;
			for (var i = 0; i < dataCount; i++)
			{
				DoNothing(data[i]);
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_Count()
		{
			var data = TestObjectsAsList;
			DoNothing(data.Count);
		}

		//[Benchmark(Baseline = false)]
		public void List_Contains_FirstItems()
		{
			var data = TestObjects;
			var list = TestObjectsAsList;
			var dataCount = TestObjectCount / 10 > 0 ? TestObjectCount / 10 : TestObjectCount;
			for (var i = 0; i < dataCount; i++)
			{
				DoNothing(list.Contains(data[i]));
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_Contains_LastItems()
		{
			var data = TestObjects;
			var list = TestObjectsAsList;
			var dataCount = TestObjectCount / 10 > 0 ? TestObjectCount / 10 : TestObjectCount;
			for (var i = 0; i < dataCount; i++)
			{
				DoNothing(list.Contains(data[^(i + 1)]));
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_IndexOf_FirstItems()
		{
			var data = TestObjects;
			var list = TestObjectsAsList;
			var dataCount = TestObjectCount / 10 > 0 ? TestObjectCount / 10 : TestObjectCount;
			for (var i = 0; i < dataCount; i++)
			{
				DoNothing(list.IndexOf(data[i]));
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_IndexOf_LastItems()
		{
			var data = TestObjects;
			var list = TestObjectsAsList;
			var dataCount = TestObjectCount / 10 > 0 ? TestObjectCount / 10 : TestObjectCount;
			for (var i = 0; i < dataCount; i++)
			{
				DoNothing(list.IndexOf(data[^(i + 1)]));
			}
		}

		//[Benchmark(Baseline = true)]
		public void List_RemoveAt_FirstItems()
		{
			var data = TestObjects;
			var list = new List<object>(data);
			var dataCount = TestObjectCount / 10 > 0 ? TestObjectCount / 10 : TestObjectCount;
			for (var i = 0; i < dataCount; i++)
			{
				list.RemoveAt(i);
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_RemoveAt_LastItems()
		{
			var data = TestObjects;
			var list = new List<object>(data);
			var dataCount = TestObjectCount / 10 > 0 ? TestObjectCount / 10 : TestObjectCount;
			for (var i = data.Length - 1; i > data.Length - dataCount - 1; i--)
			{
				list.RemoveAt(i);
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_Remove_FirstItems()
		{
			var data = TestObjects;
			var list = new List<object>(data);
			var dataCount = TestObjectCount / 10 > 0 ? TestObjectCount / 10 : TestObjectCount;
			for (var i = 0; i < dataCount; i++)
			{
				DoNothing(list.Remove(data[i]));
			}
		}

		//[Benchmark(Baseline = false)]
		public void List_Remove_LastItems()
		{
			var data = TestObjects;
			var list = new List<object>(data);
			var dataCount = TestObjectCount / 10 > 0 ? TestObjectCount / 10 : TestObjectCount;
			for (var i = data.Length - 1; i > data.Length - dataCount - 1; i--)
			{
				DoNothing(list.Remove(data[i]));
			}
		}
	}
}