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Implement playwright ddev addon (#1)
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* Implement playwright ddev addon

* Project file

* introduce env var for dir

* docs

* fixes

* Add baseurl

* Add base url

* Newer images

---------

Co-authored-by: Christian Fritsch <[email protected]>
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chrfritsch and Christian Fritsch authored Jun 27, 2024
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104 changes: 23 additions & 81 deletions README.md
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[![tests](https://github.com/ddev/ddev-addon-template/actions/workflows/tests.yml/badge.svg)](https://github.com/ddev/ddev-addon-template/actions/workflows/tests.yml) ![project is maintained](https://img.shields.io/maintenance/yes/2024.svg)
# DDEV Playwright

# ddev-addon-template <!-- omit in toc -->

* [What is ddev-addon-template?](#what-is-ddev-addon-template)
* [Components of the repository](#components-of-the-repository)
* [Getting started](#getting-started)
* [How to debug in Github Actions](#how-to-debug-tests-github-actions)

## What is ddev-addon-template?

This repository is a template for providing [DDEV](https://ddev.readthedocs.io) add-ons and services.

In DDEV addons can be installed from the command line using the `ddev get` command, for example, `ddev get ddev/ddev-redis` or `ddev get ddev/ddev-solr`.

This repository is a quick way to get started. You can create a new repo from this one by clicking the template button in the top right corner of the page.

![template button](images/template-button.png)

## Components of the repository

* The fundamental contents of the add-on service or other component. For example, in this template there is a [docker-compose.addon-template.yaml](docker-compose.addon-template.yaml) file.
* An [install.yaml](install.yaml) file that describes how to install the service or other component.
* A test suite in [test.bats](tests/test.bats) that makes sure the service continues to work as expected.
* [Github actions setup](.github/workflows/tests.yml) so that the tests run automatically when you push to the repository.
DDEV Playwright is a DDEV addon that provides a simple way to run Playwright tests in your DDEV project.

## Getting started

1. Choose a good descriptive name for your add-on. It should probably start with "ddev-" and include the basic service or functionality. If it's particular to a specific CMS, perhaps `ddev-<CMS>-servicename`.
2. Create the new template repository by using the template button.
3. Globally replace "addon-template" with the name of your add-on.
4. Add the files that need to be added to a DDEV project to the repository. For example, you might replace `docker-compose.addon-template.yaml` with the `docker-compose.*.yaml` for your recipe.
5. Update the `install.yaml` to give the necessary instructions for installing the add-on:

* The fundamental line is the `project_files` directive, a list of files to be copied from this repo into the project `.ddev` directory.
* You can optionally add files to the `global_files` directive as well, which will cause files to be placed in the global `.ddev` directory, `~/.ddev`.
* Finally, `pre_install_commands` and `post_install_commands` are supported. These can use the host-side environment variables documented [in DDEV docs](https://ddev.readthedocs.io/en/latest/users/extend/custom-commands/#environment-variables-provided).

6. Update `tests/test.bats` to provide a reasonable test for your repository. Tests are triggered either by manually executing `bats ./tests/test.bats`, automatically on every push to the repository, or periodically each night. Please make sure to attend to test failures when they happen. Others will be depending on you. Bats is a simple testing framework that just uses Bash. To run a Bats test locally, you have to [install bats-core](https://bats-core.readthedocs.io/en/stable/installation.html) first. Then you download your add-on, and finally run `bats ./tests/test.bats` within the root of the uncompressed directory. To learn more about Bats see the [documentation](https://bats-core.readthedocs.io/en/stable/).
7. When everything is working, including the tests, you can push the repository to GitHub.
8. Create a [release](https://docs.github.com/en/repositories/releasing-projects-on-github/managing-releases-in-a-repository) on GitHub.
9. Test manually with `ddev get <owner/repo>`.
10. You can test PRs with `ddev get https://github.com/<user>/<repo>/tarball/<branch>`
11. Update the `README.md` to describe the add-on, how to use it, and how to contribute. If there are any manual actions that have to be taken, please explain them. If it requires special configuration of the using project, please explain how to do those. Examples in [ddev/ddev-solr](https://github.com/ddev/ddev-solr), [ddev/ddev-memcached](https://github.com/ddev/ddev-memcached), and (advanced) [ddev-platformsh](https://github.com/ddev/ddev-platformsh).
12. Update the `README.md` header in Title Case format, for example, use `# DDEV Redis`, not `# ddev-redis`.
13. Add a good short description to your repo, and add the [topic](https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/classifying-your-repository-with-topics) "ddev-get". It will immediately be added to the list provided by `ddev get --list --all`.
14. When it has matured you will hopefully want to have it become an "official" maintained add-on. Open an issue in the [DDEV queue](https://github.com/ddev/ddev/issues) for that.

Add-ons were covered in [DDEV Add-ons: Creating, maintaining, testing](https://www.dropbox.com/scl/fi/bnvlv7zswxwm8ix1s5u4t/2023-11-07_DDEV_Add-ons.mp4?rlkey=5cma8s11pscxq0skawsoqrscp&dl=0) (part of the [DDEV Contributor Live Training](https://ddev.com/blog/contributor-training)).

Note that more advanced techniques are discussed in [DDEV docs](https://ddev.readthedocs.io/en/latest/users/extend/additional-services/#additional-service-configurations-and-add-ons-for-ddev).

## How to debug tests (Github Actions)

1. You need an SSH-key registered with GitHub. You either pick the key you have already used with `github.com` or you create a dedicated new one with `ssh-keygen -t ed25519 -a 64 -f tmate_ed25519 -C "$(date +'%d-%m-%Y')"` and add it at `https://github.com/settings/keys`.

2. Add the following snippet to `~/.ssh/config`:

```
Host *.tmate.io
User git
AddKeysToAgent yes
UseKeychain yes
PreferredAuthentications publickey
IdentitiesOnly yes
IdentityFile ~/.ssh/tmate_ed25519
```bash
# Install the ddev addon
ddev get thunder/ddev-playwright
# Install playwright at tests/Playwright
ddev install-playwright
# Restart ddev
ddev restart
# Run the tests
ddev playwright test
# Run the tests in UI mode
ddev playwright test --ui
# Show the latest report
ddev playwright show-report
```
3. Go to `https://github.com/<user>/<repo>/actions/workflows/tests.yml`.

4. Click the `Run workflow` button and you will have the option to select the branch to run the workflow from and activate `tmate` by checking the `Debug with tmate` checkbox for this run.
### Access ddev website in tests

![tmate](images/gh-tmate.jpg)

5. After the `workflow_dispatch` event was triggered, click the `All workflows` link in the sidebar and then click the `tests` action in progress workflow.

7. Pick one of the jobs in progress in the sidebar.

8. Wait until the current task list reaches the `tmate debugging session` section and the output shows something like:
Add the following code to your playwright.config.js file:

```javascript
use: {
baseURL: process.env.PLAYWRIGHT_BASE_URL
}
```
106 SSH: ssh [email protected]
107 or: ssh -i <path-to-private-SSH-key> [email protected]
108 SSH: ssh [email protected]
109 or: ssh -i <path-to-private-SSH-key> [email protected]
```

9. Copy and execute the first option `ssh [email protected]` in the terminal and continue by pressing either <kbd>q</kbd> or <kbd>Ctrl</kbd> + <kbd>c</kbd>.

10. Start the Bats test with `bats ./tests/test.bats`.
## Codegen

For a more detailed documentation about `tmate` see [Debug your GitHub Actions by using tmate](https://mxschmitt.github.io/action-tmate/).
The codegen command is not supported yet. You can use [Playwright CRX](https://github.com/ruifigueira/playwright-crx) chrome extension instead.

**Contributed and maintained by [@CONTRIBUTOR](https://github.com/CONTRIBUTOR)**
26 changes: 26 additions & 0 deletions commands/host/install-playwright
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#!/bin/sh
#ddev-generated

mkdir -p tests/Playwright
if [ ! -f tests/Playwright/package.json ]; then
echo "No playwright installation exists at tests/Playwright."
# https://github.com/microsoft/playwright/issues/11843
echo "Playwright does not support a non-interactive setup and must be done manually."
echo ""
echo "Run the following to use npm:"
echo ddev exec -d /var/www/html/tests/Playwright npm init playwright@latest
echo ""
echo "Run the following to use yarn instead:"
echo ddev exec -d /var/www/html/tests/Playwright yarn create playwright
echo ""
echo "Answer \"no\" when it asks to install browsers and operating system dependencies,"
echo "as those will be erased when ddev restarts."
echo ""
echo "When done, run: ddev install-playwright"
exit 1
fi

# ddev errors out on subsequent builds if we symlink these files. Instead, we
# copy them each time.
echo "Rebuilding web service with playwright dependencies..."
ddev restart
29 changes: 29 additions & 0 deletions commands/web/playwright
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#!/bin/sh
#ddev-generated

cd "${PLAYWRIGHT_TEST_DIR}" || exit 1

# If $@ contains 'test --ui' we need to add the --ui-host option to the command
if echo "$@" | grep -q "test --ui"; then
# Add the --ui-host and --ui-port option to the command
set -- "$@" --ui-host="0.0.0.0" --ui-port="36921"
echo "Listening on ${DDEV_PRIMARY_URL}:36922. Press Ctrl+C to quit"
fi

# If $@ contains 'show-report' we need to add the --host option to the command
if echo "$@" | grep -q "show-report"; then
# Add the --host and --port option to the command
set -- "$@" --host="0.0.0.0" --port="9323"
echo "Serving HTML report at ${DDEV_PRIMARY_URL}:9324. Press Ctrl+C to quit"
fi

if echo "$@" | grep -q "codegen"; then
echo "This command is not supported yet."
exit 1
fi

if [ -f yarn.lock ]; then
yarn && yarn playwright "$@"
else
npx playwright "$@"
fi
19 changes: 19 additions & 0 deletions config.playwright.yaml
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#ddev-generated
# Remove the line above if you don't want this file to be overwritten when you run
# ddev get thunder/ddev-playwright
#
# This file comes from https://github.com/thunder/ddev-playwright
#
web_environment:
- PW_TEST_CONNECT_WS_ENDPOINT=ws://playwright:3000
- PLAYWRIGHT_TEST_DIR=tests/Playwright
- PLAYWRIGHT_BASE_URL=http://web
web_extra_exposed_ports:
- name: playwright-report
container_port: 9323
http_port: 9323
https_port: 9324
- name: playwright-ui
container_port: 36921
http_port: 36921
https_port: 36922
17 changes: 0 additions & 17 deletions docker-compose.addon-template.yaml

This file was deleted.

18 changes: 18 additions & 0 deletions docker-compose.playwright.yaml
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#ddev-generated
services:
playwright:
container_name: ddev-${DDEV_SITENAME}-playwright
image: mcr.microsoft.com/playwright:noble
entrypoint: 'bash -c "cd /home/pwuser && npx -y playwright@latest run-server --port 3000"'
networks: [default, ddev_default]
restart: "no"
# These labels ensure this service is discoverable by ddev.
labels:
com.ddev.site-name: ${DDEV_SITENAME}
com.ddev.approot: $DDEV_APPROOT
volumes:
- ".:/mnt/ddev_config"
- "ddev-global-cache:/mnt/ddev-global-cache"
web:
links:
- playwright
13 changes: 5 additions & 8 deletions install.yaml
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# Details about the install.yaml file are at https://ddev.readthedocs.io/en/latest/users/extend/additional-services/#sections-and-features-of-ddev-get-add-on-installyaml

name: addon-template
name: playwright

# pre_install_actions - list of actions to run before installing the addon.
# Examples would be removing an extraneous docker volume,
Expand Down Expand Up @@ -60,17 +60,14 @@ pre_install_actions:
# If you use directories, they must be directories that are managed
# by this add-on, or removal could remove things that are not owned by it
project_files:
- docker-compose.addon-template.yaml
# - some-directory/file1.txt
# - some-directory/file2.txt
# - extra_files_dir_created_by_this_template/
# - somefile.sh
- docker-compose.playwright.yaml
- config.playwright.yaml
- commands/web/playwright
- commands/host/install-playwright

# List of files and directories that are copied into the global .ddev directory
# DDEV environment variables can be interpolated into these filenames
global_files:
# - commands/web/add-on-command
# - homeadditions/some-file.txt

# List of add-on names that this add-on depends on
dependencies:
Expand Down

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