This is a Extensible fluent input validation framework.
Made for .Net, the solution uses .Net Core
Input validation is mostly boring and creates lots of repetable code. And sometime conditions that are hard to read. This framework is made to make input validation more fun, esier and save lots of time regarding reading validations etc.
public void AddUsername(string username)
{
Ensure.That(nameof(username), username)
.NotNull()
.IsEmail();
}You can simple extend it with your own validation rules for your objects.
Just add an extension for:
Validation<T>
Exmampel:
public static Validation IsNotDefault(this Validation< DateTime> item)
This verify framework will give you just that Validation< T > objects extension fluent validations methods.
So int, string etc have their own validation methods.
Sampelcode of the StringValidationExtention
```javascript
public static class StringValidationExtension
{
[DebuggerHidden]
public static Validation NotShorterThan(this Validation item, int value)
{
if (item.Value.Length < value)
throw new ArgumentOutOfRangeException($"InputParam '{item.ParameterName}' cannot be less than '{value}'");
return item;
}
[DebuggerHidden]
public static Validation<string> NotLongerThan(this Validation<string> item, int value)
{
if (item.Value.Length > value)
throw new ArgumentOutOfRangeException($"InputParam '{item.ParameterName}' cannot be greater than '{value}'");
return item;
}
[DebuggerHidden]
public static Validation<string> NotNullOrEmpty(this Validation<string> item)
{
if (string.IsNullOrWhiteSpace(item.Value))
throw new ArgumentNullException($"Parameter '{item.ParameterName}' cannot be null or empty string!");
return item;
}
}
</code>
Based on an old framework we worked on 2008 when we talked abour Design By Contract in Swenug (Sweden .Net User group) and other forums.
https://rogeralsing.com/2008/05/10/followup-how-to-validate-a-methods-arguments/