public static void IfCollectionsAreNotEquivalent <T>(
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)] IEnumerable <T> collection1,
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)] IEnumerable <T> collection2,
[NotNull] string message,
[NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
Fail.IfArgumentNull(collection1, nameof(collection1));
Fail.IfArgumentNull(collection2, nameof(collection2));
IEnumerable <T> list1 = collection1 as IList <T> ?? collection1.ToList();
IEnumerable <T> list2 = collection2 as IList <T> ?? collection2.ToList();
int collection1Count = list1.Count();
int collection2Count = list2.Count();
if (collection1Count != collection2Count)
{
throw Fail.Because(message, args);
}
bool areEquivalent = list1.Intersect(list2)
.Count() == collection1Count;
Fail.IfFalse(areEquivalent, message, args);
}
public static void IfNotEqual <TExpected, TActual>([CanBeNull] TExpected expected, [CanBeNull] TActual actual, [NotNull] string message, [NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
if (object.Equals(expected, actual) == false)
{
throw Fail.Because(message, args);
}
}
public static void IfNullOrNotCastable <T>(
[CanBeNull][NoEnumeration] object value,
[NotNull] string message,
[NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
Fail.IfNull(value, message, args);
Fail.IfNotCastable(value, typeof(T), message, args);
}
public static void IfNotNull <T>([CanBeNull][NoEnumeration] T value, [NotNull] string message, [NotNull] params object[] args)
{
// TODO:mace (from:mace on:17-11-2016) This method should be splitted to 5 generic methods to prevent unnecesesary memory allocation
Fail.RequiresMessage(message, args);
if (value != null)
{
throw Fail.Because(message, args);
}
}
public static void IfNull <T>(
[CanBeNull][AssertionCondition(AssertionConditionType.IS_NOT_NULL)] T value,
[NotNull] string message)
{
Fail.RequiresMessage(message);
if (value == null)
{
throw Fail.Because(message);
}
}
public static void IfFalse(
[AssertionCondition(AssertionConditionType.IS_FALSE)] bool value,
[NotNull] string message)
{
Fail.RequiresMessage(message);
if (value == false)
{
throw Fail.Because(message);
}
}
public static void IfEqual <TExpected, TActual>([CanBeNull] TExpected unexpected,
[CanBeNull] TActual actual,
[NotNull] string message)
{
Fail.RequiresMessage(message);
if (object.Equals(unexpected, actual))
{
throw Fail.Because(message);
}
}
public static void IfTrue <TArgument1>(
[AssertionCondition(AssertionConditionType.IS_TRUE)] bool value,
[NotNull] string message,
[CanBeNull] TArgument1 arg1)
{
Fail.RequiresMessage(message);
if (value)
{
throw Fail.Because(message, arg1);
}
}
public static void IfTrue(
[AssertionCondition(AssertionConditionType.IS_TRUE)] bool value,
[NotNull] string message,
[NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
if (value)
{
throw Fail.Because(message, args);
}
}
public static void IfNull <T, TArgument1, TArgument2>(
[CanBeNull][AssertionCondition(AssertionConditionType.IS_NOT_NULL)] T value,
[NotNull] string message,
[CanBeNull] TArgument1 arg1,
[CanBeNull] TArgument2 arg2)
{
Fail.RequiresMessage(message);
if (value == null)
{
throw Fail.Because(message, arg1, arg2);
}
}
public static void IfFalse <TArgument1, TArgument2>(
[AssertionCondition(AssertionConditionType.IS_FALSE)] bool value,
[NotNull] string message,
[CanBeNull] TArgument1 arg1,
[CanBeNull] TArgument2 arg2)
{
Fail.RequiresMessage(message);
if (value == false)
{
throw Fail.Because(message, arg1, arg2);
}
}
public static void IfCollectionContains <T>(
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)] IEnumerable <T> collection,
[NotNull] Func <T, bool> func,
[NotNull] string message,
[NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
Fail.IfArgumentNull(collection, nameof(collection));
T element = collection.FirstOrDefault(func);
Fail.IfNotNull(element, message, args);
}
public static void IfWhitespace(
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)] string value,
[NotNull] string message,
[NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
Fail.IfNull(value, message, args);
if (string.IsNullOrWhiteSpace(value))
{
throw Fail.Because(message, args);
}
}
public static T FailIfNull <T>(
[CanBeNull][AssertionCondition(AssertionConditionType.IS_NOT_NULL)][NoEnumeration] this T value,
[NotNull] string message,
[NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
if (value == null)
{
throw Fail.Because(message, args);
}
return(value);
}
public static void IfEqual <TExpected, TActual, TArgument1, TArgument2, TArgument3>([CanBeNull] TExpected unexpected,
[CanBeNull] TActual actual,
[NotNull] string message,
[CanBeNull] TArgument1 arg1,
[CanBeNull] TArgument2 arg2,
[CanBeNull] TArgument3 arg3)
{
Fail.RequiresMessage(message);
if (object.Equals(unexpected, actual))
{
throw Fail.Because(message, arg1, arg2, arg3);
}
}
public static void IfEmpty(
[CanBeNull, AssertionCondition(AssertionConditionType.IS_NOT_NULL)] string value,
[NotNull] string message,
[NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
Fail.IfNull(value, message, args);
if (value.Length == 0)
{
throw Fail.Because(message, args);
}
}
public static void IfNotCastable([CanBeNull][NoEnumeration] object value, [NotNull] Type expectedType, [NotNull] string message, [NotNull] params object[] args)
{
Fail.RequiresType(expectedType);
Fail.RequiresMessage(message, args);
if (value == null)
{
return;
}
if (expectedType.IsInstanceOfType(value) == false)
{
throw Fail.Because(message, args);
}
}
public static DesignByContractViolationException Because([NotNull][System.Diagnostics.CodeAnalysis.NotNull] string message)
{
Fail.RequiresMessage(message);
return(new DesignByContractViolationException(message));
}
public static void IfEmpty(Guid value, [NotNull] string message, [NotNull] params object[] args)
{
Fail.RequiresMessage(message, args);
Fail.IfEqual(Guid.Empty, value, message, args);
}
public static DesignByContractViolationException Because([NotNull] string message)
{
Fail.RequiresMessage(message);
return(new DesignByContractViolationException(message));
}
