public void create_array_happy_path()
{
var result = CollectionFactory.CreateArray(3, i => i);
result.Length.ShouldBe(3);
result[0].ShouldBe(0);
result[1].ShouldBe(1);
result[2].ShouldBe(2);
}
public void get_page_throws_exception_when_asking_for_page_higher_than_page_count()
{
var collection = CollectionFactory.CreateArray(10, x => Rand.NextInt());
Assert.Throws <lib12Exception>(() => collection.GetPage(3, 5));
}
public void get_page_throws_exception_if_number_of_page_is_less_than_one()
{
var collection = CollectionFactory.CreateArray(10, x => Rand.NextInt());
Assert.Throws <lib12Exception>(() => collection.GetPage(0, 5));
}
public void create_array_throws_exception_when_create_function_is_null()
{
Assert.Throws <ArgumentNullException>(() => CollectionFactory.CreateArray(12, (Func <int, int>)null));
}
public void create_array_throws_exception_when_size_is_negative()
{
Assert.Throws <ArgumentOutOfRangeException>(() => CollectionFactory.CreateArray(-1, i => i));
}
public void create_array_works_with_size_equal_to_zero()
{
var result = CollectionFactory.CreateArray(0, i => i);
result.ShouldBeEmpty();
}
/// <summary>
/// Returns an array of random objects of given type
/// </summary>
/// <typeparam name="T">The type to generate</typeparam>
/// <param name="count">The count of objects to generate</param>
/// <param name="constrains">The constrains for generating properties</param>
/// <returns></returns>
public static T[] NextArrayOf <T>(int count, ConstrainCollection constrains = null) where T : class
{
return(CollectionFactory
.CreateArray(count, i => Next <T>(constrains)));
}
/// <summary>
/// Returns a random string with provided length
/// </summary>
/// <param name="length">Returned string length</param>
/// <returns>Random string with provided length</returns>
public static string NextString(int length)
{
return(new string(CollectionFactory.CreateArray(10, i => NextLowercaseLetter())));
}