End-to-end tests should use a real database connection, and provisioning container service for the Postgres database can be automated using GitHub actions. The environment variable for the connection string for the newly created database can be set in the step for running e2e tests. The same goes for the Redis instance.
# ...
jobs:
build:
# Container must run in Linux-based operating systems
runs-on: ubuntu-latest
# Image from Docker hub
container: node:20.9.0-alpine3.17
# ...
strategy:
matrix:
# ...
database-name:
- e2e-testing-db
database-user:
- username
database-password:
- password
database-host:
- postgres
database-port:
- 5432
redis-host:
- redis
redis-port:
- 6379
services:
postgres:
image: postgres:latest
env:
POSTGRES_DB: ${{ matrix.database-name }}
POSTGRES_USER: ${{ matrix.database-user }}
POSTGRES_PASSWORD: ${{ matrix.database-password }}
ports:
- ${{ matrix.database-port }}:${{ matrix.database-port }}
# Set health checks to wait until postgres has started
options: --health-cmd pg_isready
--health-interval 10s
--health-timeout 5s
--health-retries 5
redis:
image: redis
# Set health checks to wait until redis has started
options: >-
--health-cmd "redis-cli ping"
--health-interval 10s
--health-timeout 5s
--health-retries 5
steps:
# ...
- run: npm run test:e2e
env:
DATABASE_URL: postgres://${{ matrix.database-user }}:${{ matrix.database-password }}@${{ matrix.database-host }}:${{ matrix.database-port }}/${{ matrix.database-name }}
REDIS_URL: redis://${{ matrix.redis-host }}:${{ matrix.redis-port }}
# ...
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