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On Windows, if the user clicks the Tailscale icon in the system tray, it opens a login URL in the browser. When the login URL is opened, `state/nonce` cookies are set for that particular URL. If the user clicks the icon again, a new login URL is opened in the browser, and new cookies are set. If the user proceeds with auth in the first tab, the redirect results in a "state did not match" error. This patch ensures that each opened login URL sets an individual cookie that remains valid on the `/oidc/callback` page. `TestOIDCMultipleOpenedLoginUrls` illustrates and tests this behavior.
Integration testing
Headscale relies on integration testing to ensure we remain compatible with Tailscale.
This is typically performed by starting a Headscale server and running a test "scenario" with an array of Tailscale clients and versions.
Headscale's test framework and the current set of scenarios are defined in this directory.
Tests are located in files ending with _test.go and the framework are located in the rest.
Running integration tests locally
The easiest way to run tests locally is to use act, a local GitHub Actions runner:
act pull_request -W .github/workflows/test-integration.yaml
Alternatively, the docker run command in each GitHub workflow file can be used.
Running integration tests on GitHub Actions
Each test currently runs as a separate workflows in GitHub actions, to add new test, run
go generate inside ../cmd/gh-action-integration-generator/ and commit the result.