public void WithTags_GetterBasedWithGetterAlreadyDefined_ThrowsArgumentException()
{
// Arrange
var mapping = new ComponentMapping <EventHubNamespace>(null)
.WithTags(enh => enh.Tags);
// Act & Assert
var ex = Assert.Throws <ArgumentException>(() => mapping.WithTags(Tags.FromExpression <EventHubNamespace>(ns => ns.TagMap.Select(p => $"{p.Key}::{p.Value}"))));
Assert.Equal("Tag getter already defined.", ex.Message);
}