hypothesis1

Usage

Overview

hypothesis helps you write and maintain property-based tests in your Python project.

hypothesis codemod refactors deprecated or inefficient code, rewriting files in place. It has no additional options.

hypothesis write writes property-based tests for you. Type annotations are helpful but not required. The following options are recognized:

--roundtrip

write roundtrip tests for write/read or encode/decode functions.

Example: hypothesis write --roundtrip json.dumps json.loads

--equivalent

write tests whether two functions behave identically.

Example: hypothesis write --equivalent ast.literal_eval eval

--errors-equivalent

like --equivalent, but also allows consistent errors.

--idempotent

write tests whether a function is idempotent.

--binary-op

write tests for associativity, commutativity and identitiy element.

Example: hypothesis write --binary-op operator.add

--except CLASS

dotted name of exception to ignore. can be specified multiple times.

--annotate, --no-annotate

force tests to be type-annotated (or not).

--style=STYLE

write tests as pytest functions or unittest methods.