我最近解決了使用裝飾模式的問題之一。一切工作正常,一切都足夠脫鉤(或者我認爲),我可以單獨測試每個有效字段。單元測試裝飾模式
我的問題是,如果NameValidator和AgeValidator都通過了Validate()和IsValid()(抽象)函數的測試。我是否還需要單元測試我的ValidationDecorator類(尚未創建)? ValidationDecorator將負責裝飾我的驗證器和每個驗證類。
public abstract class FieldValidator
{
protected IMessage validateReturnType;
public FieldValidator() { }
public bool IsValid()
{
return (validateReturnType.GetType() == typeof(Success));
}
}
public class NameValidator : FieldValidator, IValidator
{
private string name;
public NameValidator(string _name) {
name = _name;
}
public IMessage Validate()
{
if (name.Length < 5)
{
validateReturnType = new Error("Name error.");
}
else
{
validateReturnType = new Success("Name no errror.");
}
return validateReturnType;
}
}
public class AgeValidator : FieldValidator, IValidator
{
private int age;
public AgeValidator(int _age)
{
age = _age;
}
public IMessage Validate()
{
if (age <= 18)
{
validateReturnType = new Error("Age error.");
}
else
{
validateReturnType = new Success("Age no errror.");
}
return validateReturnType;
}
}
public interface IValidator
{
IMessage Validate();
bool IsValid();
}
這是我的單元測試。
[TestFixture]
public class ValidatorTest
{
Type successType;
Type errorType;
Model m;
[SetUp]
public void SetUp()
{
successType = typeof(Success);
errorType = typeof(Error);
m = new Model();
m.Name = "Mike Cameron";
m.Age = 19;
m.Height = 325;
Validator v = new Validator();
v.Validate(m);
}
[Test]
public void ValidateNameTest()
{
IValidator im = new NameValidator(m.Name);
IMessage returnObj = im.Validate();
Assert.AreEqual(successType, returnObj.GetType());
}
[Test]
public void IsValidNameTest()
{
IValidator im = new NameValidator(m.Name);
IMessage returnObj = im.Validate();
Assert.IsTrue(im.IsValid());
}
[Test]
public void ValidateAgeTest()
{
IValidator im = new AgeValidator(m.Age);
IMessage returnObj = im.Validate();
Assert.AreEqual(successType, returnObj.GetType(), "Must be over 18");
}
[Test]
public void IsValidAgeTest()
{
IValidator im = new AgeValidator(m.Age);
IMessage returnObj = im.Validate();
Assert.IsTrue(im.IsValid());
}
謝謝。