Generate test data from JSON schemata with Hypothesis
The public API consists of a just two functions:
Takes a JSON schema and return a strategy for allowed JSON objects.
This strategy supports almost all of the schema elements described in the draft RFC as of November 2018 (draft 7), with the following exceptions:
For arrays, the "contains" keyword is not supported. For objects, the "dependencies" keyword is not supported. Subschemata are not supported, i.e. the "if", "then", and "else" keywords, and the "allOf, "anyOf", "oneOf", and "not" keywords. For strings, the "format" keyword is not supported. Schema reuse with "definitions" is not supported.
The following features are deemed out of scope - pull requests would be accepted (if maintainable) but issues would not:
- string-encoding of non-JSON data
- schema annotations, i.e. "title", "description", "default", "readOnly", "writeOnly", and "examples"
- JSON pointers
A Hypothesis strategy for arbitrary JSON schemata.
This strategy may generate anything that can be handled by
and is used to provide full branch coverage when testing this package.
hypothesis-jsonschema does not support Python 2, because
it's close to end of life and Python 3.6+ is a
much nicer language. Contact me if you would like this changed and are
willing to either pay for or do the work to support Python 2.
In general, 0.x versions will require very recent versions of all dependencies because I don't want to deal with compatibility workarounds.
hypothesis-jsonschema may make backwards-incompatible changes at any time
before version 1.x - that's what semver means! - but I've kept the API surface
small enough that this should be avoidable. The main source of breaks will be
if or when schema that never really worked turn into explicit errors instead
of generating values that don't quite match.
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