Skip to main content

pybond is a spying and stubbing library inspired by the clojure bond library.

Project description

pybond

pybond is a spying and stubbing library inspired heavily by the clojure bond library.

# src/my_module.py
from typing import Any
from other_package import make_a_network_request, write_to_disk


def foo(x: Any) -> None:
    response = make_a_network_request(x)
    write_to_disk(response)
    return response


def bar(x: Any) -> None:
    return foo(x)
# tests/test_my_module.py
from bond import calls, called_with_args, spy, stub, times_called

import other_package
import src.my_module
from src.my_module import bar


def test_foo_is_called():
    with spy([src.my_module, "foo"]):
        assert times_called(src.my_module.foo, 0)
        bar(42)
        assert times_called(src.my_module.foo, 1)
        bar(42)
        bar(42)
        assert times_called(src.my_module.foo, 3)


def test_bar_handles_response():
    with stub(
        [other_package, "make_a_network_request", lambda x: {"result": x * 2}],
        [other_package, "write_to_disk", lambda _: None],
    ), spy(
        [src.my_module, "foo"],
    ):
        assert times_called(src.my_module.foo, 0)
        assert times_called(other_package.make_a_network_request, 0)
        assert bar(21) == 42
        assert times_called(src.my_module.foo, 1)
        assert times_called(other_package.make_a_network_request, 1)
        assert called_with_args(src.my_module.foo, args=[21])
        assert bar(20) == 40
        assert calls(src.my_module.foo) == [
            {"args": [21] "kwargs": None "return": 42 "error": None},
            {"args": [20] "kwargs": None "return": 40 "error": None},
        ]

License

Distributed under the Eclipse Public License.

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

pybond-0.1.2.tar.gz (4.3 kB view hashes)

Uploaded Source

Built Distribution

pybond-0.1.2-py3-none-any.whl (4.6 kB view hashes)

Uploaded Python 3

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page