public void ThrowsArgumentExceptionForNullOrWhitespaceConnectionString()
{
var connectionString = EfConnectionStringHelper.GetEntityFrameworkConnectionString(typeof(TestObjectContextContainer), TestConnectionStrings.ObjectContextDefault);
var objectContext = new TestObjectContextContainer(connectionString);
ExceptionTester.CallMethodAndExpectException<ArgumentException>(() => ConnectionStringHelper.SetConnectionString(objectContext, null));
ExceptionTester.CallMethodAndExpectException<ArgumentException>(() => ConnectionStringHelper.SetConnectionString(objectContext, string.Empty));
}