Property Constraint
PropertyConstraint tests for the existence of a named property on an object and then applies a constraint test to the
property value.
Constructor
PropertyConstraint(string name, IConstraint baseConstraint)
Syntax
Has.Property(string name)... // followed by further constraint syntax
Examples of Use
public class Person
{
public string Name { get; set; } = "";
public int Age { get; set; }
public string Email { get; set; } = "";
}
[Test]
public void PropertyConstraint_Examples()
{
var person = new Person { Name = "John", Age = 25, Email = "john@example.com" };
Assert.That(person, Has.Property("Name").EqualTo("John"));
Assert.That(person, Has.Property("Age").GreaterThan(18));
Assert.That(person, Has.Property("Email").Contains("@"));
}
As shown in the example, certain common properties are known to NUnit and may be tested using a shorter form. The following properties are supported:
Has.Length...
Has.Count...
Has.Message...
Has.InnerException...