A collection of test.check generators for GraphQL queries.
There are two types of queries that can be generated: random ones that show syntactic correctness but might be utter nonsense, and those based on an analyzed schema, being both syntactically and semantically correct.
Given a GraphQL schema (parsed and analyzed), a generator for valid GraphQL operations can be built:
(require '[alumbra.generators :as gen])
(def gen-operation
(gen/operation
(-> "type Person { name: String!, pets: [Pet!] }
type Pet { name: String!, meows: Boolean }
type QueryRoot { person(name: String!): Person }
schema { query: QueryRoot }"
(alumbra.analyzer/analyze-schema alumbra.parser/parse-schema))))This is a function that takes the operation type and, optionally, operation name and produces a string value representing our desired operation, conforming to the above schema.
(rand-nth
(clojure.test.check.generators/sample (gen-operation :query "Q")))
;; => "query Q {
;; __schema {
;; queryType { inputFields { defaultValue, description }, ... }
;; },
;; person(name: \"Mu90ChZ1ht\") { name }
;; }"As you can see, the implicitly given introspection fields will be accessed just as well.
This generates a GraphQL document as described in the GraphQL specification.
(clojure.test.check.generators/sample (gen/raw-document) 1)
;; => ("mutation X($h: [T]! = 0.8e-57753886, $Q: [K]! = 0.1693) { ...")This generates a GraphQL IDL document. There is, as of the writing of this README, no complete specification on this, so it is based on the Schemas and Types guide, as well as the current state of this PR.
(clojure.test.check.generators/sample (gen/raw-schema) 1)
;; => ("schema {query: O, mutation: B}\ninterface G {D(c: [I]): [O]}\nenum F {O}")MIT License
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