You can spin up your environment by defining all of your services in a docker-compose file. You should add the service you want to test as well in the docker-compose file. After spinning it up you can run your integration tests in the service you want to test.
Example docker-compose file:
version: '2.2'
services:
service-you-want-to-test:
build: .
image: service-you-want-to-test
container_name: service-you-want-to-test
environment:
- ENVIRONMENT=${ENVIRONMENT}
- REDIS_ADDRESSES=[redis:6379]
- SERVICE_YOU_DEPEND_ON_ENDPOINT=service-you-depend-on:8091
- DB_HOST=mysql
- DB_USER=root
links:
- redis
- mysql
- service-you-depend-on
depends_on:
mysql:
condition: service_healthy
ports:
- 8090:8090
service-you-depend-on:
image: service-you-depend-on:latest
container_name: service-you-depend-on
environment:
- DB_HOST=mysql
- DB_USER=root
links:
- redis
- mysql
depends_on:
mysql:
condition: service_healthy
ports:
- 8091:8091
mysql:
image: mysql:5.7
container_name: mysql
environment:
MYSQL_ALLOW_EMPTY_PASSWORD: "true"
volumes:
- ./.docker/mysql/init.sql:/docker-entrypoint-initdb.d/init.sql:ro
- ./.docker/mysql/healthcheck-5.7:/var/www/healthcheck
healthcheck:
test: "/var/www/healthcheck"
interval: 5s
timeout: 5s
retries: 5
ports:
- 3306:3306
redis:
image: redis:3.2
container_name: redis
ports:
- 6379:6379
To set up your integration environment you can use these commands:
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build main.go
docker build -t service-you-want-to-test .
docker-compose up -d redis mysql
docker-compose up -d --build service-you-want-to-test
After running the above you can just execute your integration tests via the command line:
go test -v path/to/integration_tests/...
So you should add the services that you depend on to the docker-compose file as well so you can actually send a request to them in your integration tests. Be sure to add those service endpoints in your environment variables so you can override the endpoint you send your request to.
For resetting your data in for example your database you can write fixtures. The fixtures are just helper functions to reset the data of your database, cache, etc.
