LCORE-2343: implement behave step definitions for unified-mode feature files - #2448
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Create tests/e2e/configuration/unified-mode/ with library-mode/server-mode
variants (same two-subdir layout configure_service resolves), covering the
five unified-mode feature files:
- unified-providers: minimal unified config driven only by top-level
inference.providers over the default baseline (R1/S5); openai-specific.
- unified-config-only / unified-relative-profile: profile: run.yaml — the
CI-materialized repo-root run.yaml as baseline, provider-agnostic (R1/R8;
two files because the features pin the intents separately).
- unified-absolute-profile: container-absolute profile paths, differing per
mode subdir (/app-root vs /opt/app-root mounts).
- unified-native-override-{scalar,list}: R5 replacement semantics fixtures,
synthesis-only, never booted.
- invalid-{providers,config}-and-legacy: mutual-exclusion validation
fixtures (R3); invalid-version-legacy-unified-body: R11 marker mismatch
(needs LCORE-2872's cross-validation to fail for the right reason).
- legacy-for-migration: legacy half of the migration fixture pair, kept
free of enrichment sections so migrate-then-synthesize round-trips
losslessly (LCORE-3370).
Every fixture is validated against the real Configuration model: bootable
ones load, invalid ones fail with the intended error. The test-generated
lightspeed-stack-unified-migrated.yaml is gitignored, and the directory
README documents each fixture's purpose.
…d fixture LCORE-2342 migrated the standard library-mode baseline to unified mode (config.profile: run.yaml), which silently changed what unified-mode-legacy.feature's library scenario exercises: it now boots the unified baseline, not the deprecated two-file path, so R2's library-mode legacy coverage was gone. Add lightspeed-stack-legacy.yaml — identical to the baseline except its llama_stack block uses the true legacy shape (use_as_library_client + library_client_config_path: run.yaml, no synthesis input) — and point the library scenario's Given at it. This is the one deliberate Gherkin edit in LCORE-2343, agreed with Maxim in planning; the server-mode scenario is untouched since container-side enrichment there is genuinely legacy.
Add tests/e2e/features/steps/unified_mode.py — the 16 step patterns the validation, migration, and synthesis features need (boot and legacy resolve entirely through existing generic steps). Per the planning decisions: - All artifact steps operate on the ON-DISK configuration (the repo-root lightspeed-stack.yaml copy configure_service applied), never the live service. - Validation runs the service CLI (--dump-configuration) as a black-box subprocess from the repo root and asserts a non-zero exit, so the error-contains assertions can never pass against a healthy load. - Migration runs the real --migrate-config CLI; the output lands in the active mode subdir under the gitignored name later Gherkin references, and is cleaned up per scenario. - Synthesis runs the config CLI exactly as the server entrypoint does (unified auto-detection -> synthesize_to_file, giving the 0600 mode the permissions scenario asserts). Round-trip and override assertions parse YAML and compare data, never bytes; override assertions are self-referential against the fixture's native_override and additionally assert the baseline differed, so replacements can't pass vacuously. - The --synthesized-config-output scenario launches a short-lived local service from the library-mode fixture variant on a rewritten port and polls for the custom output file (the flag is library-mode-only by design; running containers cannot be restarted with new CLI args). - The startup-log step is mode-aware: in server mode the synthesis evidence is emitted by the llama-stack container (entrypoint + CLI), not the lightspeed-stack container the Gherkin names — asserted against the synthesizing container with the rationale documented in the step. behave --dry-run over the five features: 24 scenarios, 200 steps, zero undefined.
Tag all five unified-mode features @skip-in-prow: the new steps rely on Docker containers and local subprocesses, neither of which exists in the Prow environment (existing convention, handled in before_scenario). Add an @openai-only tag on the two inference.providers boot scenarios and a matching before_scenario skip keyed on E2E_DEFAULT_PROVIDER_OVERRIDE: the providers workflow runs the full unsharded test list against azure/watsonx/bedrock matrices, and the unified-providers fixture hardcodes an openai provider that cannot serve those models' queries. Profile-based fixtures stay provider-agnostic (they consume the CI-materialized run.yaml) and need no gating.
Remove the @Skip placeholder tag from the five unified-mode features: the step definitions and fixtures they need now exist. The features keep @skip-in-prow (Docker/subprocess dependencies) and stay in test_list.txt under @e2e_group_2, so CI shards pick them up via 'not @Skip and @e2e_group_2' and local runs via --tags=-skip.
restart_container waits on docker health, but docker can report healthy before uvicorn binds the published port — the exact race wait_for_lightspeed_stack_http_ready documents and was, until now, only closed in the proxy steps. The unified-mode boot scenarios are the slowest restarts in the suite (first unified/default-baseline boots) and hit that window reliably: the restart step passed while the following readiness GET got connection-refused. Call the existing HTTP-ready wait from restart_container for the lightspeed-stack container, closing the race for every restarting scenario; when the port is already accepting, the first poll returns immediately.
--migrate-config writes its output 0600 (R10: migrated files may carry lifted secrets), but the boot scenarios copy that file to the repo root for the container to consume, and the container user cannot read a host-owned 0600 file — the migrated-config boot scenario died on config read. Relax the harness copy to 0644 after a successful migration; the fixture pair is env-reference-only by design, so no secret can leak.
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Description
Implements LCORE-2343: behave step definitions, fixtures, and gating for the five
unified-mode-*.featurefiles authored spec-first in LCORE-2341 (PR #2020), and unskips them.tests/e2e/features/steps/unified_mode.py, 16 new patterns — boot/legacy resolve entirely through existing generic steps): validation runs the service CLI (--dump-configuration) as a black-box subprocess against the on-disk active configuration and asserts a non-zero exit; migration runs the real--migrate-configCLI with output landing in the active mode subdir (gitignored, cleaned per scenario, relaxed to 0644 so the container user can boot the copy); synthesis runs the config CLI exactly as the server entrypoint does (unified auto-detect →synthesize_to_file, giving the 0600 mode the permissions scenario asserts). All comparisons are YAML-data equality, never bytes; override assertions are self-referential against the fixture'snative_overrideand additionally assert the baseline differed, so replacements cannot pass vacuously. The--synthesized-config-outputscenario launches a short-lived local service from the library-mode fixture variant on a rewritten port and polls for the custom output.tests/e2e/configuration/unified-mode/{library-mode,server-mode}/, 20 files + README): every fixture validated against the realConfigurationmodel — bootable ones load in both modes, the three invalid ones fail with exactly the intended errors. Profile-based fixtures consume the CI-materialized./run.yaml, staying provider-agnostic across the providers matrix.lightspeed-stack-legacy.yamlfixture restores it, with a one-line Given edit inunified-mode-legacy.feature(the single deliberate Gherkin edit; rationale in a Gherkin comment and the commit message).@skip-in-prow(Docker/subprocess dependencies); the two openai-hardcoded boot scenarios tagged@openai-onlywith abefore_scenarioskip keyed onE2E_DEFAULT_PROVIDER_OVERRIDE, so the providers matrix (azure/watsonx/bedrock full-list runs) skips them instead of failing.restart_containerwaited on docker health, which can report healthy before uvicorn binds the port (the documented racewait_for_lightspeed_stack_http_readyexists for, previously closed only in proxy steps) — the unified first boots are the slowest restarts in the suite and hit it reliably; the HTTP-ready wait is now wired into every lightspeed-stack restart.@skipremoved from the five features. Rebased over the LCORE-3537 e2e rework: the features carry main's@cfg_unifiedaffinity tag (plus@skip-in-prow), so the existingcfg_unifiedCI shard picks them up on unskip. (Two mid-branch commit messages predate the rework and mention the old@e2e_group_2sharding; the final state is@cfg_unified.)Depends on: LCORE-2338 (PR #2319 — server-mode synthesis path; still open). LCORE-2872 (config_format_version) has merged, so the validation scenario now fails/passes for the right reason.
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Verified against a local merge of this branch with PR #2317 and PR #2319, docker-compose stacks in both modes, live OpenAI key (pre-rebase, 2026-08-04); step-matching re-verified after rebasing onto the LCORE-3537 e2e rework:
uv run behave --dry-run tests/e2e/features/unified-mode-*.featureActual (on the rebased head): 24 scenarios, 200 steps, zero undefined.
E2E_DEPLOYMENT_MODE=library uv run behave tests/e2e/features/unified-mode-*.featureActual: 17 scenarios passed, 0 failed, 7 skipped (server-only variants) — includes migrate→synthesize round-trip, the custom
--synthesized-config-outputservice subprocess, and the startup-log check.E2E_DEPLOYMENT_MODE=serverandE2E_LLAMA_HOSTNAME=llama-stackexported (the validation subprocess resolves the fixture's${env.E2E_LLAMA_HOSTNAME}; CI sets it at job level).Actual: 17 scenarios passed, 0 failed, 7 skipped (library-only variants) — all validation, migration, and synthesis scenarios green, mode-aware log step verified against the llama-stack container.
uv run make format— clean on the rebased head. Fullmake verifydeferred to CI (local machine constraint); the last full local verify on this branch was clean except the 14 pre-existing mypy errors intests/unit/utils/test_models_dumper.py.