public void ConstructorAndGetTypeDescriptor() {
AssociatedMetadataTypeTypeDescriptionProvider provider1 = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(TestTable));
Assert.IsTrue(provider1.GetTypeDescriptor(typeof(TestTable)).GetProperties().Find("Number", true).Attributes.ContainsEquivalent(new RangeAttribute(0, 10)));
AssociatedMetadataTypeTypeDescriptionProvider provider2 = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(TestTable), typeof(TestTable_MetadataAlternative));
Assert.IsTrue(provider2.GetTypeDescriptor(typeof(TestTable)).GetProperties().Find("Number", true).Attributes.ContainsEquivalent(new RequiredAttribute()));
}
public void AddProviderToTypeAndInstance() {
var instance = new Base();
// Before adding TDPs
var props = TypeDescriptor.GetProperties(instance).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B" }, props);
TypeDescriptionProvider typeProvider = null;
TypeDescriptionProvider instanceProvider = null;
try {
typeProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(typeProvider, typeof(Base));
instanceProvider = new TestTypeDescriptionProvider(instance);
TypeDescriptor.AddProvider(instanceProvider, instance);
// After adding TDPs
props = TypeDescriptor.GetProperties(instance).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(typeProvider, typeof(Base));
TypeDescriptor.RemoveProvider(instanceProvider, instance);
}
}
public void AddProviderToBaseType_GetPropertiesOfDerivedType() {
// Before adding TDP
var props = TypeDescriptor.GetProperties(typeof(Base)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B" }, props);
props = TypeDescriptor.GetProperties(typeof(Derived)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "C" }, props);
TypeDescriptionProvider provider = null;
try {
provider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(provider, typeof(Base));
// After adding TDP
props = TypeDescriptor.GetProperties(typeof(Base)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B" }, props);
props = TypeDescriptor.GetProperties(typeof(Derived)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "C" }, props);
}
finally {
// Ensure we remove the provider we attached.
TypeDescriptor.RemoveProvider(provider, typeof(Base));
}
}
public void AddMultipleProvidersToType() {
// Before adding TDPs
var props = TypeDescriptor.GetProperties(typeof(Base)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B" }, props);
TypeDescriptionProvider associatedMetadataProvider = null;
TypeDescriptionProvider testProvider = null;
try {
associatedMetadataProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(associatedMetadataProvider, typeof(Base));
testProvider = new TestTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(testProvider, typeof(Base));
// After adding TDPs
props = TypeDescriptor.GetProperties(typeof(Base)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(associatedMetadataProvider, typeof(Base));
TypeDescriptor.RemoveProvider(testProvider, typeof(Base));
}
// Add providers in reverse order
try {
testProvider = new TestTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(testProvider, typeof(Base));
associatedMetadataProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(associatedMetadataProvider, typeof(Base));
props = TypeDescriptor.GetProperties(typeof(Base)).Cast<PropertyDescriptor>().
Select(p => p.Name).ToArray();
CollectionAssert.AreEquivalent(new[] { "A", "B", "CustomProperty1", "CustomProperty2" }, props);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(associatedMetadataProvider, typeof(Base));
TypeDescriptor.RemoveProvider(testProvider, typeof(Base));
}
}
public void MetadataInheritance() {
TypeDescriptionProvider baseProvider = null;
TypeDescriptionProvider derivedProvider = null;
TypeDescriptionProvider derivedNoMetadataProvider = null;
try {
baseProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Base));
TypeDescriptor.AddProvider(baseProvider, typeof(Base));
derivedProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(Derived));
TypeDescriptor.AddProvider(derivedProvider, typeof(Derived));
derivedNoMetadataProvider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(DerivedNoMetadata));
TypeDescriptor.AddProvider(derivedNoMetadataProvider, typeof(DerivedNoMetadata));
var attrs = TypeDescriptor.GetProperties(typeof(Base))["A"].Attributes.Cast<Attribute>().
Select(a => a.GetType().Name).ToArray();
CollectionAssert.IsSubsetOf(new[] { "DescriptionAttribute" }, attrs);
attrs = TypeDescriptor.GetProperties(typeof(Derived))["A"].Attributes.Cast<Attribute>().
Select(a => a.GetType().Name).ToArray();
CollectionAssert.IsSubsetOf(new[] { "DescriptionAttribute", "CategoryAttribute" }, attrs);
attrs = TypeDescriptor.GetProperties(typeof(DerivedNoMetadata))["A"].Attributes.Cast<Attribute>().
Select(a => a.GetType().Name).ToArray();
CollectionAssert.IsSubsetOf(new[] { "DescriptionAttribute" }, attrs);
}
finally {
// Ensure we remove the providers we attached.
TypeDescriptor.RemoveProvider(baseProvider, typeof(Base));
TypeDescriptor.RemoveProvider(derivedProvider, typeof(Derived));
TypeDescriptor.RemoveProvider(derivedNoMetadataProvider, typeof(DerivedNoMetadata));
}
}
public void Constructors_Null_Type()
{
var v = new AssociatedMetadataTypeTypeDescriptionProvider(null);
}
public void GetTypeDescriptor_MetadataHasFieldsNotPresentOnClass_ThrowsInvalidOperationException()
{
var provider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(ClassWithInvalidMetadata));
Assert.Throws <InvalidOperationException>(() => provider.GetTypeDescriptor(typeof(ClassWithInvalidMetadata), null));
}
public void Constructors_Null_AssociatedMetadataType_2()
{
var v = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(string), null);
}
