public static void ShouldContainOnly <T>(this IEnumerable <T> list, IEnumerable <T> items)
{
var source = new List <T>(list);
var noContain = new List <T>();
var comparer = new AssertComparer <T>();
foreach (var item in items)
{
if (!source.Contains(item, comparer))
{
noContain.Add(item);
}
else
{
source.Remove(item);
}
}
if (noContain.Any() || source.Any())
{
string message = string.Format(@"Should contain only: {0}
entire list: {1}", items.EachToUsefulString(), list.EachToUsefulString());
if (noContain.Any())
{
message += "\ndoes not contain: " + noContain.EachToUsefulString();
}
if (source.Any())
{
message += "\ndoes contain but shouldn't: " + source.EachToUsefulString();
}
throw new SpecificationException(message);
}
}
public static void ShouldNotContain <T>(this IEnumerable <T> list, IEnumerable <T> items)
{
var contains = new List <T>();
var comparer = new AssertComparer <T>();
foreach (var item in items)
{
if (list.Contains(item, comparer))
{
contains.Add(item);
}
}
if (contains.Any())
{
throw new SpecificationException(string.Format(@"Should not contain: {0}
entire list: {1}
does contain: {2}", items.EachToUsefulString(), list.EachToUsefulString(), contains.EachToUsefulString()));
}
}
public static void ShouldNotContain <T>(this IEnumerable <T> list, IEnumerable <T> items)
{
var comparer = new AssertComparer <T>();
var listArray = list.ToArray();
var itemsArray = items.ToArray();
var contains = itemsArray
.Where(x => listArray.Contains(x, comparer))
.ToList();
if (contains.Any())
{
throw new SpecificationException(string.Format(
@"Should not contain: {0}" + Environment.NewLine +
"entire list: {1}" + Environment.NewLine +
"does contain: {2}",
itemsArray.EachToUsefulString(),
listArray.EachToUsefulString(),
contains.EachToUsefulString()));
}
}
public static void ShouldContain <T>(this IEnumerable <T> list, IEnumerable <T> items)
{
var noContain = new List <T>();
var comparer = new AssertComparer <T>();
foreach (var item in items)
{
if (!list.Contains <T>(item, comparer))
{
noContain.Add(item);
}
}
if (noContain.Any())
{
throw new SpecificationException(string.Format(
@"Should contain: {0}" + Environment.NewLine +
"entire list: {1}" + Environment.NewLine +
"does not contain: {2}",
items.EachToUsefulString(),
list.EachToUsefulString(),
noContain.EachToUsefulString()));
}
}
static bool SafeEquals <T>(this T left, T right)
{
var comparer = new AssertComparer <T>();
return(comparer.Compare(left, right) == 0);
}