183 lines
8.7 KiB
Markdown
183 lines
8.7 KiB
Markdown
# End-to-end Testing
|
|
|
|
## What is end-to-end testing?
|
|
|
|
End-to-end testing is a strategy used to check whether your application works
|
|
as expected across the entire software stack and architecture, including
|
|
integration of all micro-services and components that are supposed to work
|
|
together.
|
|
|
|
## How do we test GitLab?
|
|
|
|
We use [Omnibus GitLab][omnibus-gitlab] to build GitLab packages and then we
|
|
test these packages using the [GitLab QA orchestrator][gitlab-qa] tool, which is
|
|
a black-box testing framework for the API and the UI.
|
|
|
|
### Testing nightly builds
|
|
|
|
We run scheduled pipelines each night to test nightly builds created by Omnibus.
|
|
You can find these nightly pipelines at `https://gitlab.com/gitlab-org/quality/nightly/pipelines`
|
|
(need Developer access permissions). Results are reported in the `#qa-nightly` Slack channel.
|
|
|
|
### Testing staging
|
|
|
|
We run scheduled pipelines each night to test staging.
|
|
You can find these nightly pipelines at `https://gitlab.com/gitlab-org/quality/staging/pipelines`
|
|
(need Developer access permissions). Results are reported in the `#qa-staging` Slack channel.
|
|
|
|
### Testing code in merge requests
|
|
|
|
#### Using the `package-and-qa` job
|
|
|
|
It is possible to run end-to-end tests for a merge request, eventually being run in
|
|
a pipeline in the [`gitlab-qa`](https://gitlab.com/gitlab-org/gitlab-qa/) project,
|
|
by triggering the `package-and-qa` manual action in the `test` stage (not
|
|
available for forks).
|
|
|
|
**This runs end-to-end tests against a custom CE and EE (with an Ultimate license)
|
|
Omnibus package built from your merge request's changes.**
|
|
|
|
Manual action that starts end-to-end tests is also available in merge requests
|
|
in [Omnibus GitLab][omnibus-gitlab].
|
|
|
|
Below you can read more about how to use it and how does it work.
|
|
|
|
#### How does it work?
|
|
|
|
Currently, we are using _multi-project pipeline_-like approach to run QA
|
|
pipelines.
|
|
|
|
```mermaid
|
|
graph LR
|
|
A1 -.->|1. Triggers an omnibus-gitlab pipeline and wait for it to be done| A2
|
|
B2[`Trigger-qa` stage<br>`Trigger:qa-test` job] -.->|2. Triggers a gitlab-qa pipeline and wait for it to be done| A3
|
|
|
|
subgraph "gitlab-foss/gitlab pipeline"
|
|
A1[`test` stage<br>`package-and-qa` job]
|
|
end
|
|
|
|
subgraph "omnibus-gitlab pipeline"
|
|
A2[`Trigger-docker` stage<br>`Trigger:gitlab-docker` job] -->|once done| B2
|
|
end
|
|
|
|
subgraph "gitlab-qa pipeline"
|
|
A3>QA jobs run] -.->|3. Reports back the pipeline result to the `package-and-qa` job<br>and post the result on the original commit tested| A1
|
|
end
|
|
```
|
|
|
|
1. Developer triggers a manual action, that can be found in CE / EE merge
|
|
requests. This starts a chain of pipelines in multiple projects.
|
|
|
|
1. The script being executed triggers a pipeline in [Omnibus GitLab][omnibus-gitlab]
|
|
and waits for the resulting status. We call this a _status attribution_.
|
|
|
|
1. GitLab packages are being built in the [Omnibus GitLab][omnibus-gitlab]
|
|
pipeline. Packages are then pushed to its Container Registry.
|
|
|
|
1. When packages are ready, and available in the registry, a final step in the
|
|
[Omnibus GitLab][omnibus-gitlab] pipeline, triggers a new
|
|
GitLab QA pipeline (those with access can view them at `https://gitlab.com/gitlab-org/gitlab-qa/pipelines`). It also waits for a resulting status.
|
|
|
|
1. GitLab QA pulls images from the registry, spins-up containers and runs tests
|
|
against a test environment that has been just orchestrated by the `gitlab-qa`
|
|
tool.
|
|
|
|
1. The result of the GitLab QA pipeline is being
|
|
propagated upstream, through Omnibus, back to the CE / EE merge request.
|
|
|
|
Please note, we plan to [add more specific information](https://gitlab.com/gitlab-org/quality/team-tasks/issues/156)
|
|
about the tests included in each job/scenario that runs in `gitlab-qa`.
|
|
|
|
##### Running custom tests
|
|
|
|
The [existing scenarios](https://gitlab.com/gitlab-org/gitlab-qa/blob/master/docs/what_tests_can_be_run.md)
|
|
that run in the downstream `gitlab-qa` pipeline include many tests, but there are times when you might want to run a
|
|
test or a group of tests that are different than the groups in any of the existing scenarios.
|
|
|
|
For example, when we [dequarantine](https://about.gitlab.com/handbook/engineering/quality/guidelines/debugging-qa-test-failures/#dequarantining-tests)
|
|
a flaky test we first want to make sure that it's no longer flaky.
|
|
We can do that using the `ce:custom-parallel` and `ee:custom-parallel` jobs.
|
|
Both are manual jobs that you can configure using custom variables.
|
|
When you click the name (not the play icon) of one of the parallel jobs,
|
|
you'll be prompted to enter variables. You can use any of [the variables
|
|
that can be used with `gitlab-qa`](https://gitlab.com/gitlab-org/gitlab-qa/blob/master/docs/what_tests_can_be_run.md#supported-gitlab-environment-variables)
|
|
as well as these:
|
|
|
|
| Variable | Description |
|
|
|-|-|
|
|
| `QA_SCENARIO` | The scenario to run (default `Test::Instance::Image`) |
|
|
| `QA_TESTS` | The test(s) to run (no default, which means run all the tests in the scenario). Use file paths as you would when running tests via RSpec, e.g., `qa/specs/features/ee/browser_ui` would include all the `EE` UI tests. |
|
|
| `QA_RSPEC_TAGS` | The RSpec tags to add (no default) |
|
|
|
|
For now [manual jobs with custom variables will not use the same variable
|
|
when retried](https://gitlab.com/gitlab-org/gitlab/issues/31367), so if you want to run the same test(s) multiple times,
|
|
specify the same variables in each `custom-parallel` job (up to as
|
|
many of the 10 available jobs that you want to run).
|
|
|
|
#### Using the `review-qa-all` jobs
|
|
|
|
On every pipeline during the `test` stage, the `review-qa-smoke` job is
|
|
automatically started: it runs the QA smoke suite against the
|
|
[Review App][review-apps].
|
|
|
|
You can also manually start the `review-qa-all`: it runs the full QA suite
|
|
against the [Review App][review-apps].
|
|
|
|
**This runs end-to-end tests against a Review App based on [the official GitLab
|
|
Helm chart][helm-chart], itself deployed with custom
|
|
[Cloud Native components][cng] built from your merge request's changes.**
|
|
|
|
See [Review Apps][review-apps] for more details about Review Apps.
|
|
|
|
[helm-chart]: https://gitlab.com/gitlab-org/charts/gitlab/
|
|
[cng]: https://gitlab.com/gitlab-org/build/CNG
|
|
|
|
## How do I run the tests?
|
|
|
|
If you are not [testing code in a merge request](#testing-code-in-merge-requests),
|
|
there are two main options for running the tests. If you simply want to run
|
|
the existing tests against a live GitLab instance or against a pre-built docker image
|
|
you can use the [GitLab QA orchestrator][gitlab-qa-readme]. See also [examples
|
|
of the test scenarios you can run via the orchestrator](https://gitlab.com/gitlab-org/gitlab-qa/blob/master/docs/what_tests_can_be_run.md#examples).
|
|
|
|
On the other hand, if you would like to run against a local development GitLab
|
|
environment, you can use the [GitLab Development Kit (GDK)](https://gitlab.com/gitlab-org/gitlab-development-kit/).
|
|
Please refer to the instructions in the [QA README](https://gitlab.com/gitlab-org/gitlab/tree/master/qa/README.md#how-can-i-use-it)
|
|
and the section below.
|
|
|
|
## How do I write tests?
|
|
|
|
In order to write new tests, you first need to learn more about GitLab QA
|
|
architecture. See the [documentation about it][gitlab-qa-architecture].
|
|
|
|
Once you decided where to put [test environment orchestration scenarios] and
|
|
[instance-level scenarios], take a look at the [GitLab QA README][instance-qa-readme],
|
|
the [GitLab QA orchestrator README][gitlab-qa-readme], and [the already existing
|
|
instance-level scenarios][instance-level scenarios].
|
|
|
|
Continued reading:
|
|
|
|
- [Quick Start Guide](quick_start_guide.md)
|
|
- [Style Guide](style_guide.md)
|
|
- [Best Practices](best_practices.md)
|
|
- [Testing with feature flags](feature_flags.md)
|
|
- [Flows](flows.md)
|
|
|
|
## Where can I ask for help?
|
|
|
|
You can ask question in the `#quality` channel on Slack (GitLab internal) or
|
|
you can find an issue you would like to work on in
|
|
[the `gitlab` issue tracker][gitlab-issues], or
|
|
[the `gitlab-qa` issue tracker][gitlab-qa-issues].
|
|
|
|
[omnibus-gitlab]: https://gitlab.com/gitlab-org/omnibus-gitlab
|
|
[gitlab-qa]: https://gitlab.com/gitlab-org/gitlab-qa
|
|
[gitlab-qa-readme]: https://gitlab.com/gitlab-org/gitlab-qa/tree/master/README.md
|
|
[review-apps]: ../review_apps.md
|
|
[gitlab-qa-architecture]: https://gitlab.com/gitlab-org/gitlab-qa/blob/master/docs/architecture.md
|
|
[gitlab-qa-issues]: https://gitlab.com/gitlab-org/gitlab-qa/issues?label_name%5B%5D=new+scenario
|
|
[gitlab-issues]: https://gitlab.com/gitlab-org/gitlab/issues?label_name[]=QA&label_name[]=test
|
|
[test environment orchestration scenarios]: https://gitlab.com/gitlab-org/gitlab-qa/tree/master/lib/gitlab/qa/scenario
|
|
[instance-level scenarios]: https://gitlab.com/gitlab-org/gitlab-foss/tree/master/qa/qa/specs/features
|
|
[instance-qa-readme]: https://gitlab.com/gitlab-org/gitlab/tree/master/qa/README.md
|
|
[instance-qa-examples]: https://gitlab.com/gitlab-org/gitlab-foss/tree/master/qa/qa
|