FormPostBuilder.parameterFromProviderState does not function

[CallumKerson]

The method parameterFromProviderState in the class FormPostBuilder does not actually allow for values to be delivered from the provider when doing provider tests. This is due to the method Generators.findContentTypeHandler returning null for the content type application/x-www-form-urlencoded, which is what is provided by the FormPostBuilder class.

The result is that when specifying a FormPostBuilder.parameterFromProviderState, the parameter appears with the expression in the contract JSON, but when a provider test provides a value for the expression it is not evaluated.

Indeed looking at the Generators class the only content type supported there is application/json. Is the intent that parameters from Provider states only work for json bodies? Or should the Generators class also support application/x-www-form-urlencoded?

[rholshausen]

I added support for generators with form URL encoded bodies. There was also a bug with the FormPostBuilder, so any Pact files will need to be generated with the corrected builder.

[rholshausen]

Fix released with version 4.3.16