public void HasAttribute_ReturnsTrueForAttributesOnOverridenProperties()
{
// Arrange
var source = @"
using System;
namespace TestApp
{
public class TestAttribute : Attribute { }
public class TestControllerBase
{
[TestAttribute]
public virtual string SomeProperty { get; set; }
}
public class TestController : TestControllerBase
{
public override string SomeProperty { get; set; }
}
}";
var compilation = TestCompilation.Create(source);
var attribute = compilation.GetTypeByMetadataName("TestApp.TestAttribute");
var testClass = compilation.GetTypeByMetadataName("TestApp.TestController");
var property = (IPropertySymbol)testClass.GetMembers("SomeProperty").First();
// Act
var hasAttributeWithoutInherit = CodeAnalysisExtensions.HasAttribute(property, attribute, inherit: false);
var hasAttributeWithInherit = CodeAnalysisExtensions.HasAttribute(property, attribute, inherit: true);
// Assert
Assert.False(hasAttributeWithoutInherit);
Assert.True(hasAttributeWithInherit);
}
public void HasAttribute_ReturnsTrueForAttributesOnMethods()
{
// Arrange
var source = @"
using System;
namespace TestApp
{
public class TestAttribute : Attribute { }
public class TestController
{
[TestAttribute]
public void SomeMethod() { }
}
}";
var compilation = TestCompilation.Create(source);
var attribute = compilation.GetTypeByMetadataName("TestApp.TestAttribute");
var testClass = compilation.GetTypeByMetadataName("TestApp.TestController");
var method = (IMethodSymbol)testClass.GetMembers("SomeMethod").First();
// Act
var hasAttribute = CodeAnalysisExtensions.HasAttribute(method, attribute, inherit: false);
// Assert
Assert.True(hasAttribute);
}
public void HasAttribute_ReturnsTrueIfBaseTypeHasAttribute()
{
// Arrange
var source = @"
using Microsoft.AspNetCore.Mvc;
namespace TestApp
{
[Controller]
public class TestControllerBase { }
public class TestController : TestControllerBase { }
}";
var compilation = TestCompilation.Create(source);
var attribute = compilation.GetTypeByMetadataName("Microsoft.AspNetCore.Mvc.ControllerAttribute");
var testClass = compilation.GetTypeByMetadataName($"TestApp.TestController");
// Act
var hasAttributeWithoutInherit = CodeAnalysisExtensions.HasAttribute(testClass, attribute, inherit: false);
var hasAttributeWithInherit = CodeAnalysisExtensions.HasAttribute(testClass, attribute, inherit: true);
// Assert
Assert.False(hasAttributeWithoutInherit);
Assert.True(hasAttributeWithInherit);
}
public void HasAttribute_ReturnsTrueForInterfaceContractOnAttribute()
{
// Arrange
var source = @"
using System;
namespace TestApp
{
public interface ITestInterface { }
public class TestAttribute : Attribute, ITestInterface { }
[TestAttribute]
public class TestController
{
}
}";
var compilation = TestCompilation.Create(source);
var @interface = compilation.GetTypeByMetadataName("TestApp.ITestInterface");
var testClass = compilation.GetTypeByMetadataName("TestApp.TestController");
// Act
var hasAttribute = CodeAnalysisExtensions.HasAttribute(testClass, @interface, inherit: true);
var hasAttributeOnDerived = CodeAnalysisExtensions.HasAttribute(testClass, @interface, inherit: true);
// Assert
Assert.True(hasAttribute);
Assert.True(hasAttributeOnDerived);
}
public void HasAttribute_ReturnsFalseIfSymbolDoesNotHaveAttribute()
{
// Arrange
var source = @"
using Microsoft.AspNetCore.Mvc;
namespace TestApp
{
public class HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttribute : Attribute { }
[Controller]
public class HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttributeTest
{
[NonAction]
public void SomeMethod() { }
[BindProperty]
public string SomeProperty { get; set; }
}
}";
var compilation = TestCompilation.Create(source);
var attribute = compilation.GetTypeByMetadataName("TestApp.HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttribute");
var testClass = compilation.GetTypeByMetadataName("TestApp.HasAttribute_ReturnsFalseIfTypeDoesNotHaveAttributeTest");
var testMethod = (IMethodSymbol)testClass.GetMembers("SomeMethod").First();
var testProperty = (IPropertySymbol)testClass.GetMembers("SomeProperty").First();
// Act
var classHasAttribute = CodeAnalysisExtensions.HasAttribute(testClass, attribute, inherit: false);
var methodHasAttribute = CodeAnalysisExtensions.HasAttribute(testMethod, attribute, inherit: false);
var propertyHasAttribute = CodeAnalysisExtensions.HasAttribute(testProperty, attribute, inherit: false);
// AssertControllerAttribute
Assert.False(classHasAttribute);
Assert.False(methodHasAttribute);
Assert.False(propertyHasAttribute);
}