Skip to main content

Create test sets to test different implementations of the same interface

Project description


$ pip install nose-test-sets


To define your set of common tests, create a TestSetBuilder, and use add_test to add tests. Each test should accept the same name of arguments. Say you define some tests for an adder in the module adder_test_set:

from nose_test_sets import TestSetBuilder

test_set_builder = TestSetBuilder()
test = test_set_builder.add_test

def adding_zero_to_zero_returns_zero(adder):
    assert adder.add(0, 0) == 0

def adding_one_to_two_returns_three(adder):
    assert adder.add(1, 2) == 3

create = test_set_builder.create

To run the tests against a specific implementation, you create a set of tests using the create function that we defined above:

import adder_test_set

def _run_test_with_standard_adder(test_func):
    adder = StandardAdder()
    return test_func(adder)

StandardAdderTests = adder_test_set.create(

The first argument to create should be the name of the concrete test set. The second argument is a function that can run each of the test functions. In the example above, to run the tests in StandardAdderTests, nose-test-sets ends up calling _run_test_with_standard_adder(adding_zero_to_zero_returns_zero) and _run_test_with_standard_adder(adding_one_to_two_returns_three).

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

nose-test-sets-0.2.1.tar.gz (1.4 kB view hashes)

Uploaded Source

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