ToSchema instance of NominalDiffTime doesn't match the description in Data.Time.Clock

[fierce-katie]

There's the following instance:

instance ToSchema NominalDiffTime where
  declareNamedSchema _ = declareNamedSchema (Proxy :: Proxy Integer)

Meanwhile time documentation says :

This is a length of time, as measured by UTC. Conversion functions will treat it as seconds. It has a precision of 10^-12 s.

It leads to unexpected errors when I try to validate ToJSON matches ToSchema:

>>> validateToJSON (10::NominalDiffTime)
[]
>>> validateToJSON (10.1::NominalDiffTime)
["not an integer"]

[fizruk]

Indeed. We need to add ToSchema and ToParamSchema instances for Fixed.
Then we can redefine ToSchema instance for NominalDiffTime in terms of Pico (which is a type synonym for Fixed E12).

[fierce-katie]

Isn't it fixed already (see #121)?

[fierce-katie]

Fixed in swagger2-2.1.6.