Generators for predicate specifications

Specifications are used to generate a wide range of random data. A generator for the specification is obtained and then data is generated.

Predicate generators

(spec-gen/generate (spec/gen int?))

(spec-gen/generate (spec/gen nil?))

(spec-gen/sample (spec/gen string?))

(spec-gen/generate (spec/gen #{:club :diamond :heart :spade}))

(spec-gen/sample (spec/gen #{:club :diamond :heart :spade}))