Подключил тесты(но не сделал)

Bilet5Dergachev.sln

@@ -5,6 +5,8 @@ VisualStudioVersion = 16.0.29609.76
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Bilet5Dergachev", "Bilet5Dergachev.csproj", "{83F6E88C-9F2C-43DF-B4D0-32247901F0C5}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DergachevTest", "..\DergachevTest\DergachevTest.csproj", "{8F6AD5DA-F631-4394-A1A5-E2F867606B59}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{83F6E88C-9F2C-43DF-B4D0-32247901F0C5}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{83F6E88C-9F2C-43DF-B4D0-32247901F0C5}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{83F6E88C-9F2C-43DF-B4D0-32247901F0C5}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8F6AD5DA-F631-4394-A1A5-E2F867606B59}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8F6AD5DA-F631-4394-A1A5-E2F867606B59}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8F6AD5DA-F631-4394-A1A5-E2F867606B59}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8F6AD5DA-F631-4394-A1A5-E2F867606B59}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE