public static void DescriptionReturnsValueSpecifiedInDescriptionAttributeAppliedToAttributeProperty()
{
PropertyDescriptor property = TypeDescriptor.GetProperties(typeof(TemplateDirective))["Language"];
var attribute = (DescriptionAttribute)property.Attributes[typeof(DescriptionAttribute)];
var descriptor = new AttributeDescriptor(property);
Assert.Equal(attribute.Description, descriptor.Description);
}
public static void EncodingProvidesMetadataAboutKnownValues()
{
var attributeDescriptor = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(OutputDirective))["Encoding"]);
Assert.NotEqual(0, attributeDescriptor.Values.Count);
ValueDescriptor valueDescriptor = attributeDescriptor.Values["utf-16"];
Assert.Equal("Unicode", valueDescriptor.Description);
}
public static void CultureProvidesMetadataAboutWellKnownValues()
{
var attributeDescriptor = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TemplateDirective))["Culture"]);
Assert.NotEqual(0, attributeDescriptor.Values.Count);
ValueDescriptor valueDescriptor = attributeDescriptor.Values["en-US"];
Assert.Equal("English (United States)", valueDescriptor.Description);
}
public static void ValueCachesResultToImprovePerformance()
{
var attribute = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TestDirective))["PropertyWithKnownValues"]);
Assert.Same(attribute.Values, attribute.Values);
}
public static void ValuesReturnsDictionaryOfValuesForPropertyWithKnownValuesAttribute()
{
var attribute = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TestDirective))["PropertyWithKnownValues"]);
IReadOnlyDictionary<string, ValueDescriptor> values = attribute.Values;
Assert.Equal(3, values.Count);
}
public static void ValuesReturnsEmptyDictionaryForPropertyWithoutWellKnownValues()
{
var attribute = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TestDirective))["PropertyWithoutKnownValues"]);
Assert.Equal(0, attribute.Values.Count);
}
public static void DisplayNameReturnsValueSpecifiedInDisplayNameAttributeAppliedToAttributeProperty()
{
PropertyDescriptor property = TypeDescriptor.GetProperties(typeof(AssemblyDirective))["AssemblyName"];
var descriptor = new AttributeDescriptor(property);
Assert.Equal("Name", descriptor.DisplayName);
}
public static void DisplayNameReturnsNameOfAttributeProperty()
{
PropertyDescriptor property = TypeDescriptor.GetProperties(typeof(TemplateDirective))["Language"];
var descriptor = new AttributeDescriptor(property);
Assert.Equal("Language", descriptor.DisplayName);
}
public static void HostSpecificProvidesMetadataAboutWellKnownValues()
{
var attributeDescriptor = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TemplateDirective))["HostSpecific"]);
Assert.Equal(3, attributeDescriptor.Values.Count);
VerifyAttributeValueDescriptor(attributeDescriptor, "false");
VerifyAttributeValueDescriptor(attributeDescriptor, "true");
VerifyAttributeValueDescriptor(attributeDescriptor, "trueFromBase");
}
public static void ValuesReturnsEmptyDictionaryForPropertyWithoutWellKnownValues()
{
var attribute = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TestDirective))["PropertyWithoutKnownValues"]);
Assert.Equal(0, attribute.Values.Count);
}
private static void VerifyAttributeValueDescriptor(AttributeDescriptor attribute, string valueName)
{
ValueDescriptor value = attribute.Values[valueName];
Assert.False(string.IsNullOrWhiteSpace(value.Description), valueName + " attribute value does not have a description");
}
public static void VisibilityProvidesMetadataAboutWellKnownValues()
{
var attributeDescriptor = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TemplateDirective))["Visibility"]);
Assert.Equal(2, attributeDescriptor.Values.Count);
VerifyAttributeValueDescriptor(attributeDescriptor, "public");
VerifyAttributeValueDescriptor(attributeDescriptor, "internal");
}
public static void LinePragmasProvidesMetadataAboutWellKnownValues()
{
var attributeDescriptor = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TemplateDirective))["LinePragmas"]);
Assert.Equal(2, attributeDescriptor.Values.Count);
VerifyAttributeValueDescriptor(attributeDescriptor, "false");
VerifyAttributeValueDescriptor(attributeDescriptor, "true");
}
public static void LanguageProvidesMetadataAboutWellKnownValues()
{
var attributeDescriptor = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TemplateDirective))["Language"]);
Assert.Equal(2, attributeDescriptor.Values.Count);
VerifyAttributeValueDescriptor(attributeDescriptor, "C#");
VerifyAttributeValueDescriptor(attributeDescriptor, "VB");
}
private static void VerifyAttributeValueDescriptor(AttributeDescriptor attribute, string valueName)
{
ValueDescriptor value = attribute.Values[valueName];
Assert.False(string.IsNullOrWhiteSpace(value.Description), valueName + " attribute value does not have a description");
}
public static void ValueCachesResultToImprovePerformance()
{
var attribute = new AttributeDescriptor(TypeDescriptor.GetProperties(typeof(TestDirective))["PropertyWithKnownValues"]);
Assert.Same(attribute.Values, attribute.Values);
}
private static Completion CreateAttributeCompletion(AttributeDescriptor attribute)
{
return new Completion(attribute.DisplayName, attribute.DisplayName, attribute.Description, null, null);
}
