- #3227
- much of change is to tests, creating and passing `ModelMetadata`
- updated `InputFormatterContext` to make `ModelMetadata` available to `JsonInputFormatter`
- walk `ModelMetadata` tree to get information about property with an issue
- add missing `null` checks in `ModelStateDictionaryExtensions`
- aspnet/Mvc#3138 part 2/2
- request's Content-Type header must be a subset of what an `IInputFormatter` can consume
- `[Consumes]` is similar
- what an `IOutputFormatter` produces must be a subset of the request's Accept header
- `FormatFilter` and `ObjectResult` are similar
- `ObjectResult` no longer falls back to `Content-Type` header if no `Accept` value is acceptable
- left `WebApiCompatShim` code alone for consistency with down-level `System.Net.Http.Formatting`
- correct tests to match new behaviour
- do not test `Accept` values containing a `charset` parameter; that case is not valid
WIP:
- four test failures; something about comparing media types w/ charset included
- why do some localization tests fail in VS?
nits:
- add `InputFormatterTests`
- add / update comments and doc comments
- correct xUnit attributes in `ActionResultTest`; odd it doesn't show up in command-line runs
- #2722
- make communication of errors from formatters to `BodyModelBinder` explicit
- `JsonInputFormatter` now adds errors to `ModelStateDictionary` with correct key
- change `InputFormatter.SelectCharacterEncoding()` to add an error and return `null` when it fails
- one less `Exception` case and removes some duplicate code
nits:
- improve some doc comments (more `<inheritdoc/>`, `<paramref/>` and `<see/>`)
- add another two `BodyValidationIntegrationTests` tests
- use `[ConditionalFact]` or `[ConditionalTheory]` instead
- in some cases test was already conditional
- move other `IsMono` checks into data sets where possible
- not reported as skipped but at least not counted as successful
nit: switch from `[ConditionalTheory]` to `[ConditionalFact]` as appropriate
- slightly more efficient since xUnit won't check for data