public static Ensurable <string> DirectoryExists(this Ensurable <string> ensurable, string exceptionMessage = null)
{
return(ensurable.Satisfies(Directory.Exists, exceptionMessage ?? string.Format("Directory '{0}' does not exist.", ensurable)));
}
public static Ensurable <T> NotEmpty <T>(this Ensurable <T> ensurable, Func <Ensurable <T>, Exception> exceptionFactory) where T : IEnumerable
{
return(ensurable.Satisfies(e => e.Cast <object>().Any(), exceptionFactory));
}
public static Ensurable <string> DirectoryExists(this Ensurable <string> ensurable, Func <Ensurable <string>, Exception> exceptionFactory)
{
return(ensurable.Satisfies(Directory.Exists, exceptionFactory));
}
public static Ensurable <T> In <T>(this Ensurable <T> ensurable, IEnumerable <T> collection, string exceptionMessage = null)
{
return(ensurable.Satisfies(collection.Contains, exceptionMessage ?? "Value was not contained in the specified collection."));
}
public static Ensurable <T> Between <T>(this Ensurable <T> ensurable, T lower, T upper,
Func <Ensurable <T>, Exception> exceptionFactory) where T : IComparable <T>
{
return(ensurable.Satisfies(x => x.CompareTo(lower) > -1 && x.CompareTo(upper) < 1, exceptionFactory));
}
public static Ensurable <Type> HasAttribute <T>(this Ensurable <Type> ensurable,
Func <Ensurable <Type>, Exception> exceptionFactory)
{
return(ensurable.Satisfies(x => x.GetCustomAttributes(typeof(T), true).Any(), exceptionFactory));
}
public static Ensurable <string> NotNullOrEmpty(this Ensurable <string> ensurable, Func <Ensurable <string>, Exception> exceptionFactory)
{
return(ensurable.Satisfies(s => !string.IsNullOrEmpty(s), exceptionFactory));
}
public static Ensurable <T> NotNull <T>(this Ensurable <T> ensurable, string exceptionMessage = null) where T : class
{
return(ensurable.Satisfies(x => x != null, exceptionMessage ?? "Cannot be null."));
}
public static Ensurable <string> DoesNotMatch(this Ensurable <string> ensurable, Regex regex, string exceptionMessage = null)
{
return(ensurable.Satisfies(s => !regex.IsMatch(ensurable),
exceptionMessage ?? string.Format("'{0}' does not match the required regex '{1}'.", ensurable, regex)));
}
public static Ensurable <T> GreaterThanOrEqualTo <T>(this Ensurable <T> ensurable, T other, string exceptionMessage = null) where T : IComparable <T>
{
return(ensurable.Satisfies(x => x.CompareTo(other) >= 0,
exceptionMessage ?? string.Format("Value must be greater than or equal to {0} but was {1}.", other, ensurable)));
}
public static Ensurable <T?> NotNull <T>(this Ensurable <T?> ensurable, Func <Ensurable <T?>, Exception> exceptionFactory) where T : struct
{
return(ensurable.Satisfies(x => x != null, exceptionFactory));
}
public static Ensurable <T> GreaterThan <T>(this Ensurable <T> ensurable, T other, Func <Ensurable <T>, Exception> exceptionFactory) where T : IComparable <T>
{
return(ensurable.Satisfies(x => x.CompareTo(other) > 0, exceptionFactory));
}
public static Ensurable <T> Not <T>(this Ensurable <T> ensurable, T other, string exceptionMessage = null)
{
return(ensurable.Satisfies(x => !EqualityComparer <T> .Default.Equals(ensurable, other),
exceptionMessage ?? string.Format("Cannot be {0}.", (T)ensurable)));
}
public static Ensurable <T> Not <T>(this Ensurable <T> ensurable, T other, Func <Ensurable <T>, Exception> exceptionFactory)
{
return(ensurable.Satisfies(x => !EqualityComparer <T> .Default.Equals(ensurable, other), exceptionFactory));
}
public static Ensurable <T> LessThanOrEqualTo <T>(this Ensurable <T> ensurable, T other, Func <Ensurable <T>, Exception> exceptionFactory) where T : IComparable <T>
{
return(ensurable.Satisfies(x => x.CompareTo(other) <= 0, exceptionFactory));
}
public static Ensurable <string> DoesNotMatch(this Ensurable <string> ensurable, Regex regex, Func <Ensurable <string>, Exception> exceptionFactory)
{
return(ensurable.Satisfies(s => !regex.IsMatch(ensurable), exceptionFactory));
}
public static Ensurable <T> LessThan <T>(this Ensurable <T> ensurable, T other, string exceptionMessage = null) where T : IComparable <T>
{
return(ensurable.Satisfies(x => x.CompareTo(other) < 0,
exceptionMessage ?? string.Format("Value must be less than {0} but was {1}.", other, ensurable)));
}
public static Ensurable <T> NotDefault <T>(this Ensurable <T> ensurable, Func <Ensurable <T>, Exception> exceptionFactory) where T : struct
{
return(ensurable.Satisfies(x => !EqualityComparer <T> .Default.Equals(ensurable, default(T)), exceptionFactory));
}
public static Ensurable <Type> HasAttribute <T>(this Ensurable <Type> ensurable, string exceptionMessage = null) where T : Attribute
{
return(ensurable.Satisfies(x => x.GetCustomAttributes(typeof(T), true).Any(),
exceptionMessage ?? string.Format("Type {0} does not have attribute {1}.", ensurable, typeof(T))));
}
public static Ensurable <T> NotDefault <T>(this Ensurable <T> ensurable, string exceptionMessage = null) where T : struct
{
return(ensurable.Satisfies(x => !EqualityComparer <T> .Default.Equals(ensurable, default(T)),
exceptionMessage ?? string.Format("Cannot have default value.")));
}
public static Ensurable <string> NotNullOrEmpty(this Ensurable <string> ensurable, string exceptionMessage = null)
{
return(ensurable.Satisfies(s => !string.IsNullOrEmpty(s), exceptionMessage ?? "Cannot be null or white space."));
}
public static Ensurable <Type> IsAssignableTo(this Ensurable <Type> ensurable, Type assignableTo,
string exceptionMessage = null)
{
return(ensurable.Satisfies(x => assignableTo.IsAssignableFrom(ensurable),
exceptionMessage ?? string.Format("Type {0} is not assignable to type {1}.", ensurable, assignableTo)));
}
public static Ensurable <T> In <T>(this Ensurable <T> ensurable, IEnumerable <T> collection, Func <Ensurable <T>, Exception> exceptionFactory)
{
return(ensurable.Satisfies(collection.Contains, exceptionFactory));
}
public static Ensurable <Type> IsAssignableTo(this Ensurable <Type> ensurable, Type assignableTo,
Func <Ensurable <Type>, Exception> exceptionFactory)
{
return(ensurable.Satisfies(x => assignableTo.IsAssignableFrom(ensurable), exceptionFactory));
}
public static Ensurable <T> Between <T>(this Ensurable <T> ensurable, T lower, T upper,
string exceptionMessage = null) where T : IComparable <T>
{
return(ensurable.Satisfies(x => x.CompareTo(lower) > -1 && x.CompareTo(upper) < 1,
exceptionMessage ?? string.Format("Value must be between {0} and {1} but was {2}.", lower, upper, ensurable)));
}
public static Ensurable <T> NotEmpty <T>(this Ensurable <T> ensurable, string exceptionMessage = null) where T : IEnumerable
{
return(ensurable.Satisfies(e => e.Cast <object>().Any(), exceptionMessage ?? "Collection must not be empty."));
}