public void CreateDisplayMetadata_DisplayAttribute_DescriptionFromResources()
{
// Arrange
var provider = new DataAnnotationsMetadataProvider();
var display = new DisplayAttribute()
{
#if USE_REAL_RESOURCES
Description = nameof(Test.Resources.DisplayAttribute_Description),
ResourceType = typeof(Test.Resources),
#else
Description = nameof(DataAnnotations.Test.Resources.DisplayAttribute_Description),
ResourceType = typeof(TestResources),
#endif
};
var attributes = new Attribute[] { display };
var key = ModelMetadataIdentity.ForType(typeof(string));
var context = new DisplayMetadataProviderContext(key, new ModelAttributes(attributes));
// Act
provider.CreateDisplayMetadata(context);
// Assert
Assert.Equal("description from resources", context.DisplayMetadata.Description());
}
public void CreateDisplayMetadata_IsFlagsEnum_ReflectsModelType(Type type, bool expectedIsFlagsEnum)
{
// Arrange
var provider = new DataAnnotationsMetadataProvider();
var key = ModelMetadataIdentity.ForType(type);
var attributes = new object[0];
var context = new DisplayMetadataProviderContext(key, new ModelAttributes(attributes));
// Act
provider.CreateDisplayMetadata(context);
// Assert
Assert.Equal(expectedIsFlagsEnum, context.DisplayMetadata.IsFlagsEnum);
}
public void CreateDisplayMetadata_EnumNamesAndValues_ReflectsModelType(
Type type,
IReadOnlyDictionary <string, string> expectedDictionary)
{
// Arrange
var provider = new DataAnnotationsMetadataProvider();
var key = ModelMetadataIdentity.ForType(type);
var attributes = new object[0];
var context = new DisplayMetadataProviderContext(key, new ModelAttributes(attributes));
// Act
provider.CreateDisplayMetadata(context);
// Assert
// This assertion does *not* require entry orders to match.
Assert.Equal(expectedDictionary, context.DisplayMetadata.EnumNamesAndValues);
}
public void CreateDisplayMetadata_FindsDisplayFormat_FromDataType()
{
// Arrange
var provider = new DataAnnotationsMetadataProvider();
var dataType = new DataTypeAttribute(DataType.Currency);
var displayFormat = dataType.DisplayFormat; // Non-null for DataType.Currency.
var attributes = new[] { dataType, };
var key = ModelMetadataIdentity.ForType(typeof(string));
var context = new DisplayMetadataProviderContext(key, new ModelAttributes(attributes));
// Act
provider.CreateDisplayMetadata(context);
// Assert
Assert.Same(displayFormat.DataFormatString, context.DisplayMetadata.DisplayFormatString);
}
public void CreateDisplayMetadata_SimpleAttributes(
object attribute,
Func <DisplayMetadata, object> accessor,
object expected)
{
// Arrange
var provider = new DataAnnotationsMetadataProvider();
var key = ModelMetadataIdentity.ForType(typeof(string));
var context = new DisplayMetadataProviderContext(key, new ModelAttributes(new object[] { attribute }));
// Act
provider.CreateDisplayMetadata(context);
// Assert
var value = accessor(context.DisplayMetadata);
Assert.Equal(expected, value);
}
public void CreateDisplayMetadata_FindsDisplayFormat_OverridingDataType()
{
// Arrange
var provider = new DataAnnotationsMetadataProvider();
var dataType = new DataTypeAttribute(DataType.Time); // Has a non-null DisplayFormat.
var displayFormat = new DisplayFormatAttribute() // But these values override the values from DataType
{
DataFormatString = "Cool {0}",
};
var attributes = new Attribute[] { dataType, displayFormat, };
var key = ModelMetadataIdentity.ForType(typeof(string));
var context = new DisplayMetadataProviderContext(key, new ModelAttributes(attributes));
// Act
provider.CreateDisplayMetadata(context);
// Assert
Assert.Same(displayFormat.DataFormatString, context.DisplayMetadata.DisplayFormatString);
}
public void CreateDisplayMetadata_EnumGroupedDisplayNamesAndValues_ReflectsModelType(
Type type,
IEnumerable <KeyValuePair <EnumGroupAndName, string> > expectedKeyValuePairs)
{
// Arrange
var provider = new DataAnnotationsMetadataProvider();
var key = ModelMetadataIdentity.ForType(type);
var attributes = new object[0];
var context = new DisplayMetadataProviderContext(key, new ModelAttributes(attributes));
// Act
provider.CreateDisplayMetadata(context);
// Assert
// OrderBy is used because the order of the results may very depending on the platform / client.
Assert.Equal(
expectedKeyValuePairs?.OrderBy(item => item.Key.Group, StringComparer.Ordinal)
.ThenBy(item => item.Key.Name, StringComparer.Ordinal),
context.DisplayMetadata.EnumGroupedDisplayNamesAndValues?.OrderBy(item => item.Key.Group, StringComparer.Ordinal)
.ThenBy(item => item.Key.Name, StringComparer.Ordinal));
}