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| = Motivation =
| | Moved to: https://docs.fedoraproject.org/en-US/ci/share-test-code/ |
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| In order to make the CI workflow reliable and efficient it is
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| crucial to keep the test coverage in a good shape at all times.
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| Sharing test code between several packages (even within multiple
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| branches of the same package) may significantly help to:
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| * Prevent test code duplication
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| * Minimize test maintenance
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| * Catch incompatibilities early
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| In general, tests define how the software works and the basic
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| functionality of many packages doesn’t change that often. We try
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| hard to keep the backward compatibility where possible. Thus it
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| seems natural that, for such components, tests guarding the spec
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| could change at a slower pace than the distribution branches.
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| See the whole [https://lists.fedoraproject.org/archives/list/ci@lists.fedoraproject.org/thread/55U6V6UHA54MJLD2F6JF46EOLMVRUAE7/ ci-list discussion] for some more context.
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| = Implementation =
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| Store test code in your preferred repository and reference the
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| tests from the dist-git yaml file. There is also a special
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| <code>tests</code> namespace dedicated for storing Fedora CI
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| integration tests:
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| * https://src.fedoraproject.org/projects/tests/*
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| Use <code>fedpkg</code> to quickly clone repositories from the
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| tests namespace:
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| fedpkg clone tests/shell
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| Some of the [[CI/Standard_Test_Roles|Standard Test Roles]]
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| (currently beakerlib and rhts) support fetching test code from
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| remote repositories directly in their config in this way:
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| - role: standard-test-beakerlib
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| repositories:
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| - repo: "https://src.fedoraproject.org/tests/shell.git"
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| dest: "shell"
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| = Examples =
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| Here are some real-life examples where sharing test code can
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| increase long-term efficiency.
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| == Shell ==
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| There are several shells which implement the POSIX specification:
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| bash, ksh, mksh, zsh, dash. All of them share a significant amount
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| of test coverage and it does not make sense to commit & maintain
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| identical tests in five different repositories (+ possible
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| branches).
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| Shell tests repository:
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| * https://src.fedoraproject.org/tests/shell
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| Bash [https://src.fedoraproject.org/rpms/bash/blob/master/f/tests/tests.yml tests.yml]:
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| - hosts: localhost
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| roles:
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| - role: standard-test-beakerlib
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| tags:
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| - classic
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| repositories:
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| - repo: "https://src.fedoraproject.org/tests/shell.git"
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| dest: "shell"
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| tests:
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| - shell/func
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| - shell/login
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| - shell/smoke
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| required_packages:
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| - expect # login requires expect
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| - which # smoke requires which
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| Ksh [https://src.fedoraproject.org/rpms/ksh/blob/master/f/tests/tests.yml tests.yml]:
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| - hosts: localhost
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| roles:
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| - role: standard-test-beakerlib
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| tags:
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| - classic
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| repositories:
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| - repo: "https://src.fedoraproject.org/tests/shell.git"
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| dest: "shell"
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| tests:
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| - shell/func
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| - shell/login
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| - shell/smoke
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| environment:
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| PACKAGES: ksh
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| SH_BIN: ksh
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| required_packages:
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| - ksh
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| - expect # login requires expect
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| - which # smoke requires which
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| == Ruby ==
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| Another example is Ruby: With about 80 packages related to Ruby on
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| Rails it would be useful and efficient to have a single place for
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| integration tests which verify that the framework is correctly
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| working after updating any of these packages. Conversely,
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| maintaining those tests in 80 repos would be a tedious task.
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| Currently the shared [https://src.fedoraproject.org/tests/ruby tests/ruby]
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| repository hosts these three ruby integration tests:
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| Available integration tests:
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| * systemtap-static-probes-in-ruby - exercising ruby's systemtap api
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| * bundler-unit-test - run bundler's unit tests
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| * run-basic-rails-application - run a simple rails application
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| == SELinux ==
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| Several SELinux user space components are sharing test coverage in
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| a single [https://src.fedoraproject.org/tests/selinux.git selinux] test
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| repository:
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| * [https://src.fedoraproject.org/rpms/libsepol/blob/master/f/tests/tests.yml libsepol]
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| * [https://src.fedoraproject.org/rpms/libselinux/blob/master/f/tests/tests.yml libselinux]
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| * [https://src.fedoraproject.org/rpms/libsemanage/blob/master/f/tests/tests.yml libsemanage]
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| * [https://src.fedoraproject.org/rpms/libsepol/blob/master/f/tests/tests.yml policycoreutils]
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| = Start =
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| In order to create a new repository in the tests namespace use the fedpkg's request-tests-repo command. For example to create a shared test repository with the name foo, which will be available at [https://src.fedoraproject.org/tests/foo.git]
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| * Setup authentication to pagure according to the help in request-repo command
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| $ fedpkg request-repo -h
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| * Request a new repository with a sensible decription
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| $ fedpkg --module-name foo request-tests-repo "Description of the foo repository"
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