Move test projects from src/ to tests/ (#11357)

* Update gitignore

* Move csproj

* Update project references

* Update solutions

* Update build scripts

* Tests used to share editorconfig with projects in src

* Fix broken tests.

* Stop copying around .editorconfig

merged root one with linting

* csharp_style_expression_bodied -> suggestion

* Move StyleCop rulesets to matching directories and update shared build properties

* Remove legacy build files, update NuGet.cofig and solution files

* Restore myget source

* Clean up .gitignore

* Update .gitignore

* Move new test classes to tests after merge

* Gitignore + nuget config

* Move new test

Co-authored-by: Ronald Barendse <ronald@barend.se>

tests/Umbraco.Tests.Benchmarks/ConcurrentDictionaryBenchmarks.cs

@@ -0,0 +1,153 @@
+using BenchmarkDotNet.Attributes;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Umbraco.Cms.Core.Collections;
+
+namespace Umbraco.Tests.Benchmarks
+{
+    [MemoryDiagnoser]
+    public class ConcurrentDictionaryBenchmarks
+    {
+        private static readonly ConcurrentDictionary<CompositeTypeTypeKey, bool> AssignableTypeCache = new ConcurrentDictionary<CompositeTypeTypeKey, bool>();
+
+        private static object input = new Bar();
+
+        private static Type source = typeof(Bar);
+
+        private static Type target = typeof(Foo);
+
+        [Benchmark(Baseline = true)]
+        public bool GetCachedCanAssignFactory()
+        {
+            return AssignableTypeCache.GetOrAdd(new CompositeTypeTypeKey(source, target), k =>
+            {
+                var ksource = k.Type1;
+                var ktarget = k.Type2;
+
+                return ktarget.IsAssignableFrom(ksource) && typeof(IConvertible).IsAssignableFrom(ksource);
+            });
+        }
+
+        [Benchmark]
+        public bool GetCachedCanAssignNoFactory()
+        {
+            // This method is 10% faster
+            var key = new CompositeTypeTypeKey(source, target);
+            bool canConvert;
+            if (AssignableTypeCache.TryGetValue(key, out canConvert))
+            {
+                return canConvert;
+            }
+
+            // "is" is faster than "IsAssignableFrom"
+            if (input is IConvertible && target.IsAssignableFrom(source))
+            {
+                return AssignableTypeCache[key] = true;
+            }
+
+            return AssignableTypeCache[key] = false;
+        }
+
+        private class Foo : IConvertible
+        {
+            public TypeCode GetTypeCode()
+            {
+                return TypeCode.Object;
+            }
+
+            public bool ToBoolean(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public byte ToByte(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public char ToChar(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public DateTime ToDateTime(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public decimal ToDecimal(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public double ToDouble(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public short ToInt16(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public int ToInt32(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public long ToInt64(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public sbyte ToSByte(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public float ToSingle(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public string ToString(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public object ToType(Type conversionType, IFormatProvider provider)
+            {
+                if (conversionType == typeof(Foo))
+                {
+                    return new Foo();
+                }
+
+                throw new NotImplementedException();
+            }
+
+            public ushort ToUInt16(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public uint ToUInt32(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+
+            public ulong ToUInt64(IFormatProvider provider)
+            {
+                throw new NotImplementedException();
+            }
+        }
+
+        private class Bar : Foo
+        {
+
+        }
+    }
+}