test(bdd): add shared Pylon observability DSL - #1359
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Included review availability: Your plan provides up to 12 included reviews per hour; 7 remain after this review. 📝 WalkthroughWalkthroughThe pull request adds shared BDD assertions and registration observability support. It introduces explicit WatchStargates and Pylon metrics command builders, strict shell scripts, Godog steps, validation tests, and updated BDD documentation. ChangesRegistration observability
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: 🔵 Low · up to The shared Pylon metrics observation helper can run longer than its configured timeout when Kubernetes calls block, delaying or confusing BDD test runs. The change is mergeable with explicit owner awareness and follow-up to bound each call by the remaining observation time. Sequence Diagram(s)sequenceDiagram
participant RegistrationSteps
participant registrationDSL
participant observeWatchStargates
participant Kubernetes
participant grpcurl
RegistrationSteps->>registrationDSL: Build explicit WatchStargates command
registrationDSL->>observeWatchStargates: Execute validated command
observeWatchStargates->>Kubernetes: Retrieve TLS CA secret
observeWatchStargates->>grpcurl: Invoke WatchStargates
grpcurl-->>observeWatchStargates: Return snapshot and deadline
Suggested reviewers: 🚥 Pre-merge checks | ✅ 3 | ❌ 2❌ Failed checks (2 warnings)
✅ Passed checks (3 passed)
Full details: Linked Issues checkExplanation The changes implement the shared assertions, WatchStargates adapter, Pylon metrics observable, validation, documentation, output handling, failure handling, and unit coverage requested by issue Full details: Docstring CoverageExplanation Docstring coverage is 14.29% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 28 functions across 8 files. (1 skipped: 1 unsupported.)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Actionable comments posted: 3
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Inline comments:
In `@tests/bdd/dsl/registration.go`:
- Line 86: Update the error message returned by the relevant registration
function to use lowercase initial text: “pylon metric expectations are empty”.
In `@tests/bdd/scripts/wait-pylon-metrics.sh`:
- Line 81: Bound both kubectl invocations in the wait loop, including the
pod-list request and metrics request, by the current remaining observation time
so blocked API calls cannot exceed deadline. Recalculate and apply the per-call
timeout from remaining before each invocation, while preserving the existing
deadline checks and polling behavior. Add coverage for blocked pod-list and
blocked metrics requests.
- Line 69: Update the connected_series_count matching logic in the metrics wait
script to compare the Prometheus sample value field rather than $NF, so
timestamped samples are handled correctly; also add a fixture covering
timestamped metrics.
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tests/bdd/PLAN.mdtests/bdd/dsl/registration.gotests/bdd/dsl/registration_test.gotests/bdd/scripts/observe-watch-stargates.shtests/bdd/scripts/wait-pylon-metrics.shtests/bdd/steps/assertion_steps.gotests/bdd/steps/context.gotests/bdd/steps/registration_steps.gotests/bdd/steps/steps_test.go
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Keep TLS WatchStargates targets and Pylon metric expectations visible while sharing repeated command, polling, and output parsing mechanics. Refs #1358 Signed-off-by: Stephanie Baum <sbaum@nvidia.com>
Reject transport failures, premature watch termination, ambiguous Pylon targets, empty resolved output expectations, and timestamped sample miscounts. Refs #1358 Signed-off-by: Stephanie Baum <sbaum@nvidia.com>
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Why
The three PKI test-escape features under #1292 repeat shell inversion,
grpcurlsetup, Kubernetes CA extraction, pod discovery, metrics proxying, polling, and Prometheus parsing. That repetition obscures the behavior each feature is proving and previously allowed transport failures, premature stream termination, ambiguous pod selection, and empty interpolated expectations to look successful.What changed
WatchStargatesadapter that keeps endpoint, authority, CA secret, namespace, context, and duration visible. It requires typed streamed JSON and the full client observation window.The adapters preserve real command output and logs. They do not hide profile export, stack installation, cluster registration, function lifecycle actions, or product validation.
Customer Release Notes
Not customer visible.
Plan Summary
Not applicable.
Usage
Feature PRs can use the shared observable while keeping the target and expectations in Gherkin:
Testing
go test -short ./... -count=1: passed on this branch and dependent PR branches test(bdd): cover secure multi-cluster Pylon registration #1308, test(bdd): cover fail-closed Pylon TLS registration #1309, and test(bdd): cover secure multi-region Pylon registration #1310go vet ./...: passedbash -n tests/bdd/scripts/observe-watch-stargates.sh tests/bdd/scripts/wait-pylon-metrics.sh: passedshellcheck tests/bdd/scripts/observe-watch-stargates.sh tests/bdd/scripts/wait-pylon-metrics.sh: passedgolangci-lint run --config .golangci.yml ./...: the changed code is clean; the run stops on two pre-existingST1005findings intests/bdd/dsl/manifests.gothat are also present onorigin/mainLive QA remains in the dependent feature PRs.
Notes
Per the requested review scope, this change does not implement finding 5. Individual
kubectlcalls are not yet preempted by the remaining polling window, so an indefinitely blocked API call can exceed the visible timeout.References
Closes #1358
Relates to #1292
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Dependencies
None. No license review or NOTICE update is required.
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