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# Running tao-e2e-runner from a Docker container | ||
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> In some situations (for example CI), it is desirable to run Cypress tests in a predictable, dependency-free way, against a separate application instance that you want to test. Loading the Cypress test runner inside a Docker container is a good way to achieve this: in fact, Cypress.io provide their own Docker images and guides for doing this: <https://www.cypress.io/blog/2019/05/02/run-cypress-with-a-single-docker-command> | ||
This guide makes use of the `cypress/included` public Docker image, which contains Node, npm, and the Cypress package installed globally. | ||
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The E2E tests will be run headlessly, although screenshots of test failures will still be saved into `screenshots/` | ||
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The TAO instance you test against can theoretically be online, local or Dockerised. The most reliable results will come from a Dockerised instance, so that is what this guide focuses on. | ||
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## 1. docker-compose approach | ||
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### Prerequisites | ||
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- A Dockerised instance of TAO | ||
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In this example we're using the basic stack of <https://github.com/ekkinox/tao-docker> which has containers for nginx, phpfpm, and mariadb. You need to bring up your stack and install TAO within the phpfpm container to get started. | ||
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If your existing stack is different, see the CLI approach below. | ||
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Intended project structure: | ||
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``` | ||
package-tao/ <- root of your instance | ||
├- tao/ | ||
| └- views/ | ||
| └- build/ | ||
| └- node_modules/ | ||
| └- @oat-sa/ | ||
| └- tao-e2e-runner/ <- npm package or git repo | ||
| ├- commands/ | ||
| ├- cypress.json <- important config values | ||
| ├- cypress.env.json <- optional overrides | ||
| ├- data/ | ||
| ├- docker/ | ||
| | └- docker-compose.yml <- container definitions | ||
| ├- exampleTests/ | ||
| ├- plugins/ | ||
| └- screenshots/ <- test output saved here | ||
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└-taoQtiTest/ | ||
└- views/ | ||
└- js/ | ||
└- e2e/ | ||
└- *.spec.js <- location of e2e tests for taoQtiTest | ||
``` | ||
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### Configuration values | ||
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When Cypress runs, it looks for the following values: | ||
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- `baseUrl`: (*required*) the URL where the TAO instance can be accessed | ||
- `integrationFolder`: where the E2E tests reside. If not provided, will fall back to `exampleTests` | ||
- `testFiles`: glob pattern for finding tests within the `integrationFolder` | ||
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Don't forget to set the TAO-specific values, some tests are likely to need them: | ||
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- `adminUser` | ||
- `adminPass` | ||
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All these values can be passed to Cypress in several ways: | ||
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1. as part of the main `cypress.json` configuration | ||
2. (*recommended*) as part of a `cypress.env.json` file which overrides the default values | ||
3. as config parameters after the cypress command: `cypress run --config baseUrl=http://localhost:8888` | ||
4. as environment variables before running the command: `CYPRESS_baseUrl=http://localhost:8888 npx cypress run` | ||
5. as environment variable passthrough parameters in a Docker command: `-e CYPRESS_baseUrl=http://localhost:8888` | ||
6. (*recommended*) as environment variables in your `docker-compose.yml` container definition | ||
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### Volumes | ||
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The `cypress/included` container needs 2 volumes mapped into it: | ||
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1. the `tao-e2e-runner` folder, for the testing configuration, custom commands and fixtures | ||
2. the TAO filesystem, because E2E tests are stored in the `views/js/e2e` folder of each extension. This is satisfied in the provided configuration by reusing the volume from `tao_phpfpm`. | ||
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The `integrationFolder` path should be relative to where the TAO filesystem is mapped inside the `cypress/included` container. | ||
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### Finally, run some tests | ||
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Run the following command to build the defined containers, bring them up, stop them when `cypress run` finishes and return with the exit code from Cypress (equal to the number of failed tests). | ||
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`docker-compose up -d --exit-code-from tao_e2e` | ||
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## 2. Command line approach | ||
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If the stack defined in `docker-compose.yml` doesn't meet your needs, and you just want to run the Cypress container on its own, that can be done using a single command: | ||
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Assuming that your TAO stack is running on the network `docker_tao_network`, and you are in `/tao/views/build/node_modules/@oat-sa/tao-e2e-runner`: | ||
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```sh | ||
docker run -it \ | ||
-v $PWD/../../../../../../:/var/www/html \ | ||
-v $PWD:/cypress \ | ||
-w /cypress \ | ||
-e CYPRESS_baseUrl='http://tao_nginx' \ | ||
-e CYPRESS_integrationFolder='../var/www/html/tao/views/js' \ | ||
-e CYPRESS_testFiles='**/*.spec.js' \ | ||
--network docker_tao_network \ | ||
cypress/included:3.4.0 | ||
``` | ||
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Breakdown of the above: | ||
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``` | ||
-v $PWD/../../../../../../:/var/www/html # maps your local project root to the webserver's folder in the container | ||
-v $PWD:/cypress # maps the current folder to an arbitrary /cypress folder in the container | ||
-w /cypress # the working directory in the container, where commands are run | ||
-e CYPRESS_baseUrl='http://tao_nginx' # pass this environment variable through | ||
-e CYPRESS_integrationFolder='../var/www/html/tao/views/js' # pass this environment variable through | ||
-e CYPRESS_testFiles='**/*.spec.js' # pass this environment variable through | ||
--network docker_tao_network # make this container join the network the webserver is on | ||
cypress/included:3.4.0 # dockerhub image name & tag | ||
``` | ||
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These parameters obviously depend on the setup of the Dockerised TAO you are testing against. | ||
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## Troubleshooting | ||
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### Connection refused or `ECONNREFUSED 127.0.0.1:80` | ||
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Your URLs or hostnames might be misconfigured. | ||
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The Cypress `baseUrl` should be equal to the web server's `container_name`, which should also match the `ROOT_URL` defined in `/config/generis.conf.php` of your TAO instance. | ||
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For example, in the provided `docker-compose.yml` all three values are set to `tao_nginx`. Other approaches such as `localhost`, `127.0.0.1` or fixed IP addresses are not recommended as they will be more problematic. | ||
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### No tests found | ||
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Your `integrationFolder` + `testFiles` path is not resolving where you expected. | ||
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Make sure you have the `tao-e2e-runner` folder mapped into the `cypress/included` container and the working directory set. Unset any overrides for the above config values, and they should fall back to `exampleTests` + `**/e2e/*.spec.js`. If these local tests are able to be run, it's just a case of working out the correct relative path for the other tests. | ||
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### Timeouts | ||
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If a test is failing due to timed out requests, it could be that the test is not well-written, or it could be due to the slower networking between containers. | ||
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Fortunately, the Cypress timeouts can also be configured by environment variables: | ||
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Defaults: | ||
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- `-e CYPRESS_defaultCommandTimeout=10000` | ||
- `-e CYPRESS_requestTimeout=5000` (suggested: try 10000 or 15000) | ||
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More info on [timeouts](https://docs.cypress.io/guides/references/configuration.html#Timeouts). | ||
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### Cypress DEBUG output | ||
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Add the following environment variable to see some useful logging output which can help to debug your setup: | ||
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- `-e DEBUG=cypress:server:project` | ||
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More info on [debugging](https://docs.cypress.io/guides/guides/debugging.html#Print-DEBUG-logs). |
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version: '2' | ||
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services: | ||
tao_nginx: | ||
container_name: tao_nginx | ||
image: nginx:stable | ||
networks: | ||
- tao_network | ||
ports: | ||
- "80:80" | ||
volumes_from: | ||
- tao_phpfpm | ||
volumes: | ||
- ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf:cached | ||
working_dir: /etc/nginx/conf.d | ||
logging: | ||
driver: "none" | ||
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tao_phpfpm: | ||
container_name: tao_phpfpm | ||
build: | ||
context: ./phpfpm | ||
expose: | ||
- "9000" | ||
networks: | ||
- tao_network | ||
volumes: | ||
- ../../../../../../../:/var/www/html:cached | ||
working_dir: /var/www/html | ||
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tao_mariadb: | ||
container_name: tao_mariadb | ||
image: mariadb:latest | ||
networks: | ||
- tao_network | ||
ports: | ||
- "3306:3306" | ||
environment: | ||
MYSQL_ROOT_PASSWORD: r00t | ||
MYSQL_USER: tao | ||
MYSQL_PASSWORD: tao | ||
MYSQL_DATABASE: tao | ||
volumes: | ||
- tao_mariadb_data:/var/lib/mysql:cached | ||
logging: | ||
driver: "none" | ||
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tao_e2e: | ||
container_name: tao_e2e | ||
image: "cypress/included:3.4.0" | ||
depends_on: | ||
- tao_nginx | ||
- tao_phpfpm | ||
- tao_mariadb | ||
environment: | ||
- CYPRESS_baseUrl=http://tao_nginx # ROOT_URL in TAO generis.conf.php has to match this | ||
- CYPRESS_integrationFolder=../var/www/html/taoQtiTest/views/js/e2e | ||
- CYPRESS_testFiles=**/*.spec.js | ||
networks: | ||
- tao_network | ||
working_dir: /cypress | ||
volumes: | ||
- ../:/cypress | ||
volumes_from: | ||
- tao_phpfpm | ||
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volumes: | ||
tao_mariadb_data: | ||
driver: local | ||
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networks: | ||
tao_network: | ||
driver: bridge |
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server { | ||
index index.php index.html; | ||
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server_name tao.docker; | ||
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error_log /var/log/nginx/error.log; | ||
access_log /var/log/nginx/access.log; | ||
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root /var/www/html; | ||
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location ~ ^/([^//]*)/(views|locales)/. {} | ||
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location /tao/install {} | ||
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location /tao/getFileFlysystem.php { | ||
rewrite ^(.*)$ /tao/getFileFlysystem.php last; | ||
} | ||
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location / { | ||
rewrite ^(.*)$ /index.php; | ||
} | ||
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location = /favicon.ico { access_log off; log_not_found off; } | ||
location = /robots.txt { access_log off; log_not_found off; } | ||
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sendfile off; | ||
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client_max_body_size 100m; | ||
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location ~ \.php$ { | ||
try_files $uri =404; | ||
fastcgi_split_path_info ^(.+\.php)(/.+)$; | ||
fastcgi_pass tao_phpfpm:9000; | ||
fastcgi_index index.php; | ||
include fastcgi_params; | ||
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; | ||
fastcgi_param PATH_INFO $fastcgi_path_info; | ||
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fastcgi_intercept_errors off; | ||
fastcgi_buffer_size 16k; | ||
fastcgi_buffers 4 16k; | ||
fastcgi_connect_timeout 300; | ||
fastcgi_send_timeout 300; | ||
fastcgi_read_timeout 300; | ||
} | ||
} |
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FROM php:7.1-fpm | ||
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RUN usermod -u 1000 www-data | ||
RUN usermod -G staff www-data | ||
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RUN apt-get update && apt-get install -y libpng-dev libjpeg-dev libpq-dev zip unzip sudo wget sqlite3 libsqlite3-dev && rm -rf /var/lib/apt/lists/* | ||
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RUN docker-php-ext-configure gd --with-png-dir=/usr --with-jpeg-dir=/usr | ||
RUN docker-php-ext-configure pdo_mysql --with-pdo-mysql=mysqlnd | ||
RUN docker-php-ext-configure pgsql -with-pgsql=/usr/local/pgsql | ||
RUN docker-php-ext-configure mysqli --with-mysqli=mysqlnd | ||
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RUN yes | pecl install igbinary redis | ||
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RUN docker-php-ext-install pdo && \ | ||
docker-php-ext-install pdo_mysql && \ | ||
docker-php-ext-install mysqli && \ | ||
docker-php-ext-install pgsql && \ | ||
docker-php-ext-install pdo_pgsql && \ | ||
docker-php-ext-install pdo_sqlite && \ | ||
docker-php-ext-install gd && \ | ||
docker-php-ext-install mbstring && \ | ||
docker-php-ext-install opcache && \ | ||
docker-php-ext-install zip && \ | ||
docker-php-ext-install calendar && \ | ||
docker-php-ext-install sockets && \ | ||
docker-php-ext-install pcntl && \ | ||
docker-php-ext-enable igbinary && \ | ||
docker-php-ext-enable redis | ||
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RUN { \ | ||
echo 'opcache.memory_consumption=128'; \ | ||
echo 'opcache.interned_strings_buffer=8'; \ | ||
echo 'opcache.max_accelerated_files=4000'; \ | ||
echo 'opcache.revalidate_freq=2'; \ | ||
echo 'opcache.fast_shutdown=1'; \ | ||
echo 'opcache.enable_cli=1'; \ | ||
echo 'opcache.load_comments=1'; \ | ||
} >> /usr/local/etc/php/conf.d/docker-php-ext-opcache.ini | ||
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RUN version=$(php -r "echo PHP_MAJOR_VERSION.PHP_MINOR_VERSION;") \ | ||
&& curl -A "Docker" -o /tmp/blackfire-probe.tar.gz -D - -L -s https://blackfire.io/api/v1/releases/probe/php/linux/amd64/$version \ | ||
&& mkdir -p /tmp/blackfire \ | ||
&& tar zxpf /tmp/blackfire-probe.tar.gz -C /tmp/blackfire \ | ||
&& mv /tmp/blackfire/blackfire-*.so $(php -r "echo ini_get('extension_dir');")/blackfire.so \ | ||
&& printf "extension=blackfire.so\nblackfire.agent_socket=tcp://tao_blackfire:8707\n" > $PHP_INI_DIR/conf.d/blackfire.ini \ | ||
&& rm -rf /tmp/blackfire /tmp/blackfire-probe.tar.gz | ||
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RUN rm -rf /var/www/html \ | ||
&& chmod 0777 /tmp/ |
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