public RESTableFixture()
{
OperationsTestsFlags = new OperationsTestsFlags();
ServiceProvider = new ServiceCollection()
.AddRESTable()
.AddJsonProvider()
.AddSingleton(OperationsTestsFlags)
.BuildServiceProvider();
Configurator = ServiceProvider
.GetRequiredService <RESTableConfigurator>();
var client = ServiceProvider.GetRequiredService <RootClient>();
Context = new RESTableContext(client, ServiceProvider);
Configurator.ConfigureRESTable();
}