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Development

This document explains how to develop Ory Kratos, run tests, and work with the tooling around it.

Upgrading and changelog

Check releases tab for updates and changelogs when using the open source license.

Command line documentation

To see available commands and flags, run:

kratos -h
# or
kratos help

Contribution guidelines

We encourage all contributions. Before opening a pull request, read the contribution guidelines.

Prerequisites

You need Go 1.16+ and, for the test suites:

  • Docker and Docker Compose
  • make
  • Node.js and npm

You can develop Ory Kratos on Windows, but most guides assume a Unix shell such as bash or zsh.

Install from source

To install Kratos from source:

make install

Formatting code

Format all code using:

make format

The continuous integration pipeline checks code formatting.

Running tests

There are three types of tests:

  • Short tests that do not require a SQL database
  • Regular tests that require PostgreSQL, MySQL, and CockroachDB
  • End to end tests that use real databases and a test browser

Short tests

Short tests run quickly and use SQLite.

Run all short tests:

go test -short ./...

Run short tests in a specific module:

cd client
go test -short .

Regular tests

Regular tests require a database setup.

The test suite can start databases using ory/dockertest. In practice, it is usually easier and faster to use the Makefile targets.

Run the full test suite:

make test

Note: make test recreates the databases every time. This can be slow if you are iterating frequently on a specific test.

If you want to reuse databases across test runs, initialize them once:

make test-resetdb
export TEST_DATABASE_MYSQL='mysql://root:secret@(127.0.0.1:3444)/mysql?parseTime=true'
export TEST_DATABASE_POSTGRESQL='postgres://postgres:[email protected]:3445/kratos?sslmode=disable'
export TEST_DATABASE_COCKROACHDB='cockroach://[email protected]:3446/defaultdb?sslmode=disable'

Then you can run Go tests directly as often as needed:

go test ./...

# or in a module:
cd client
go test .

Updating test fixtures

Some tests use snapshot fixtures.

Update snapshots for short tests:

make test-update-snapshots

Update all snapshots:

UPDATE_SNAPSHOTS=true go test -p 4 ./...

You can run this from the repository root or from subdirectories.

End-to-end tests

End to end tests are implemented with Cypress.

On ARM based Macs you may need to install Rosetta 2 to run Cypress. See the Cypress documentation: https://www.cypress.io/blog/2021/01/20/running-cypress-on-the-apple-m1-silicon-arm-architecture-using-rosetta-2/

To install Rosetta 2:

softwareupdate --install-rosetta --agree-to-license

Run e2e tests in development mode:

./test/e2e/run.sh --dev sqlite

Run all e2e tests with databases:

make test-e2e

For more options:

./test/e2e/run.sh

Run a single test

Add .only to the test you want to run, for example:

it.only('invalid remote recovery email template', () => {
  // ...
})

Run a subset of tests

To run a subset of e2e tests:

  1. Edit cypress.json in test/e2e/.

  2. Add the testFiles option and point it to the specs you want, for example:

    "testFiles": ["profiles/network/*"]

  3. Start the tests again using the run script or Makefile.

Build Docker image

To build a development Docker image:

make docker

Preview API documentation

To work on and preview the generated API documentation:

  1. Update the SDK including the OpenAPI specification:

    make sdk

  2. Run the preview server for API documentation:

    make docs/api

  3. Run the preview server for Swagger documentation:

    make docs/swagger