The issue here is that a model state error is added with the model name
'doubled'. This is on a fairly obscure code path and the code dates back
to the original WSR git checkin of webapi. There are no wsr tests that
verify this behavior.
The cause here is that our 'greedy' model binders (like
FromHeaderModelBinder) return 'true' whether or not they successfully
found a model, because they don't want other model binders to run.
This also has an effect on the validation system. That means that
validators will run and attempt to validate the model (which may be null).
That's that rare case where we get to this code path.
- update XML docs to reflect new HTML / custom attribute separation
- update `Exception` messages to use new attribute names
- update MVC tag helper sample to use new custom attribute names
- add missing `<input/>` tag helper `throw`s test
nits:
- reword a few comments and messages for clarity and consistency
- use `<exception/>` sections to describe what's thrown
- add "Reviewers" comments about current throws
- note `<a/>` and `<form/>` are slightly inconsistent with others: `throw`
if unable to override specified `href` or `action` attributes; rest
`throw` only if custom attributes are inconsistent e.g. `<input/>` with
`asp-format` but no `asp-for`
- create test tag helpers after all property values are available
- Ultimately this enables tooling to inspect what TagHelperDescriptors were found on a document and construct HTML schema based off of them.
- Added XML doc on the classes I touched that didn't have docs.
- Added [NotNull] to the result construct parameters.
- Added tests to validate that TagHelperDescriptors flow when found after parsing a Razor document.
#215