/// <summary>
/// Finds a collection of <see cref="HttpApplication"/> types in the give collection of assemblies.
/// </summary>
/// <param name="assemblies">A collection of assemblies, or null to probe the current test context.</param>
/// <returns>A collection of <see cref="HttpApplication"/> types.</returns>
private IEnumerable <Type> FindTypes(IEnumerable <Assembly> assemblies)
{
IEnumerable <Type> types = HttpApplicationProbe.FindApplicationTypes(assemblies ?? this.FindAssemblies());
Assert.IsNotNull(types);
Assert.IsTrue(types.Any());
return(types);
}
