public void SetOverrides_SetsCookie()
{
var response = Substitute.For <HttpResponseBase>();
var cookies = new HttpCookieCollection();
response.Cookies.Returns(cookies);
_context.Response.Returns(response);
_provider.SetOverrides(_validOverrides);
cookies.Should().HaveCount(1);
var cookie = cookies[CookieOverrideProvider.CookieName];
cookie.Should().NotBeNull();
var overrides = cookie.Value.Decrypt().Deserialize <Dictionary <string, bool> >();
ValidateOverrides(overrides);
}