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 GetTypeDescriptorGetProperties_WithAssociatedMetadataType_ReturnsExpected(Type associatedMetadataType, string expectedLastName)
{
// Perform multiple times to test static caching behaviour.
for (int i = 0; i < 2; i++)
{
var provider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(ClassWithMetadata), associatedMetadataType);
ICustomTypeDescriptor typeDescriptor = provider.GetTypeDescriptor(typeof(ClassWithMetadata), null);
PropertyDescriptorCollection properties = typeDescriptor.GetProperties();
PropertyDescriptor firstNameProperty = properties[nameof(ClassWithMetadata.FirstName)];
PropertyDescriptor lastNameProperty = properties[nameof(ClassWithMetadata.LastName)];
Assert.Equal("First name", firstNameProperty.DisplayName);
Assert.Equal(typeof(ClassWithMetadata), firstNameProperty.ComponentType);
Assert.Equal(typeof(string), firstNameProperty.PropertyType);
Assert.True(firstNameProperty.IsReadOnly);
Assert.False(firstNameProperty.SupportsChangeEvents);
Assert.Equal(expectedLastName, lastNameProperty.DisplayName);
Assert.Equal(typeof(ClassWithMetadata), lastNameProperty.ComponentType);
Assert.Equal(typeof(string), lastNameProperty.PropertyType);
Assert.False(lastNameProperty.IsReadOnly);
Assert.False(lastNameProperty.SupportsChangeEvents);
}
}
public void GetTypeDescriptor_MetadataHasFieldsNotPresentOnClass_ThrowsInvalidOperationException()
{
var provider = new AssociatedMetadataTypeTypeDescriptionProvider(typeof(ClassWithInvalidMetadata));
Assert.Throws <InvalidOperationException>(() => provider.GetTypeDescriptor(typeof(ClassWithInvalidMetadata), null));
}
