internal/operator/controller_test.go: unit-level reconciling behavior checks using fake client to ensure defaults and readiness updates behave as expected.
internal/cli/server_test.go, registry_test.go, and output_test.go: validate CLI helpers, especially output formatting and registry push logic, often using mocked commands.
test/operator_controller_test.go: higher-level controller assertions against a test environment.
pkg/metadata/loader_test.go: verifies metadata file loading/defaulting for valid and invalid YAML samples under pkg/metadata/testdata/.
test/golden/cli/cli_golden_test.go: runs CLI commands against golden output files under test/golden/cli/testdata/*.golden to prevent regressions.
test/e2e scripts (e2e-kind.sh, run-in-docker.sh, test/e2e/Dockerfile) outline end-to-end setup flows for CI, building images and running setup against kind.