Skip to main content

Hypothesis strategies for GraphQL schemas and queries

Project description

Build status for master branch Version Python versions License

Hypothesis strategies for GraphQL schemas, queries and data.

NOTE This package is experimental, many things don’t work yet and documented in a way they are planned to be used.


There are four strategies for different use cases.

  1. Schema generation - hypothesis_graphql.strategies.schema()

  2. Query - hypothesis_graphql.strategies.query(schema).

  3. Response for a query - hypothesis_graphql.strategies.response(schema, query)

  4. Data for a type -, type_name)

At the moment only schema & query are working with some limitations.

Lets take this schema as an example:

type Book {
  title: String
  author: Author

type Author {
  name: String
  books: [Book]

type Query {
  getBooks: [Book]
  getAuthors: [Author]

Then strategies might be used in this way:

from hypothesis import given
from hypothesis_graphql import strategies as gql_st

SCHEMA = """..."""  # the one above

def test_query(query):
    # This query might be generated:
    # query {
    #   getBooks {
    #     title
    #   }
    # }

@given(response=gql_st.response(schema, query))
def test_response(response):
    # Example response with a query from the example above:
    # {
    #   "data": {
    #     "getBooks": [
    #       {"title": "War and Peace"}
    #     ]
    #   }
    # }

@given(, "Book"))
def test_data(data):
    # Example data:
    # {
    #   "title": "War and Peace"
    #   "author": {"name": "Leo Tolstoy"}
    # }

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

hypothesis-graphql-0.3.0.tar.gz (8.6 kB view hashes)

Uploaded source

Built Distribution

hypothesis_graphql-0.3.0-py3-none-any.whl (8.9 kB view hashes)

Uploaded py3

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page