Release Testing

Release Package Approval Testing

dnceng Build/Tests + BAR -> release-testing -> team publication

This skill is the human approval gate for one completed BAR build. It resolves that build's per-build Darc feed, verifies the package family, runs the approved host/device matrix, and reports the release decision. It never publishes packages, changes BAR state, creates tags/releases, or merges code.

Boundaries

• Before planning, confirm the connected Build and Tests runs succeeded and the Tests run consumed the exact Build resource selected for release. The planner validates BAR/package identity, not pipeline status.
• Start from the exact SkiaSharp package version selected for release. When Maestro finds more than one producing BAR, require its exact --bar-id.
• Reject a BAR that is already released; this workflow is a pre-publication approval gate.
• Verify SkiaSharp, SkiaSharp.HarfBuzz, and the bridge's concrete HarfBuzzSharp dependency from the resolved BAR feed.
• Require the three packages to agree on source branch/commit, then require SkiaSharp's package metadata to match the selected BAR.
• Pin the package versions and resolved feed in every runner command. Never substitute another build, feed, package version, or target runtime. Runners may choose a compatible profile/device only within the exact approved target.
• Obtain approval for the exact host matrix before setup or execution.
• Run every approved item once. A failure blocks release approval but does not stop collection of unrelated results.
• Platform runners validate their prerequisites; mobile runners own temporary device lifecycle. Run mobile items sequentially and never delete user-owned devices.
• Appium and its platform drivers must meet the tested minimum versions. Use Appium's npm-aware launcher and active extension context; do not infer driver filesystem paths or force an exact newer version.
• Product assertions and rendering differences remain failures. Do not change expectations, skips, targets, or package pins to manufacture a pass.
• Preserve every initial failure, repair, retry, and artifact review.
• Release approval requires combined reports covering every required matrix ID. Host-inapplicable and customized omissions remain blocking unless the release owner explicitly records an override.

Test matrix

iOS 18.6 and Android 26 are minimum release-test targets, not product support minimums. Exact mobile targets must already be installed. The approved plan must state every host-inapplicable or intentionally omitted item.

Runner ownership

Do not manually duplicate runner-owned SDK, Appium, device, Docker, or test commands. Use setup.md for prerequisites, monitoring.md for live progress, and troubleshooting.md after failures.

Runbook

1. Resolve and verify the BAR package family

python3 .agents/skills/release-testing/scripts/plan-release-tests.py 4.150.3

The planner uses darc get-asset to find the producing BAR. If the version is ambiguous, rerun with the exact ID reported by the planner:

python3 .agents/skills/release-testing/scripts/plan-release-tests.py \
  4.150.3 --bar-id 329644

Maestro queries default to the last 30 days. For an older release candidate, increase the search window explicitly with --max-age {days}; never use it to select a different package version.

The planner:

1. reads the BAR build, source branch/commit, build link, and Darc feed location;
2. resolves that feed's GUID-backed NuGet flat-container endpoint;
3. downloads the three anchor packages from that feed;
4. verifies package IDs, versions, source metadata, and bridge dependency;
5. requires package metadata to match the selected BAR; and
6. emits host-specific commands with the exact versions and feed pinned.

Render the plan:

## Release package test plan

**BAR:** `{release.barBuildId}` / `{release.buildNumber}`
**Build:** `{release.buildLink}`
**Source:** `{release.branch}` @ `{release.commit}`
**Packages:** SkiaSharp `{release.ciPackages.SkiaSharp}`,
HarfBuzzSharp `{release.ciPackages.HarfBuzzSharp}`
**Darc location:** `{packageSources.barLocation}`
**GUID feed:** `{packageSources.guidFeed}`
**Host:** `{host.os}` / `{host.architecture}`

| ID | Test | Target | Estimate |
|----|------|--------|----------|
| `{id}` | `{label}` | `{target}` | `{estimatedMinutes}` min |

Include every missingCoverage[].

2. Approve the exact matrix

Use ask_user:

1. Run the full available matrix (Recommended)
2. Customize the matrix
3. Cancel release testing

After customization, confirm the exact final item IDs.

3. Prepare once

pwsh -NoLogo -NoProfile -File `
  .agents/skills/release-testing/scripts/prepare-test-run.ps1

Keep preparation after approval: it changes local tool state and clears prior integration artifacts, while planning remains read-only.

4. Run every approved item

Run emitted commands sequentially:

1. Show the exact command and full pending/running/passed/failed table.
2. Use a visible terminal canvas; use attached async Bash only when unavailable.
3. Relay new [release-test] output and refresh the complete table every five seconds. Never duplicate a command after a delayed read.
4. Record duration, failing phase, diagnostics, artifacts, and result.
5. Continue after failure once runner-owned cleanup finishes.

5. Repair and retry

After every initial attempt, present the complete failure inventory and group shared root causes. Apply only concrete, safe environment repairs, then retry affected items. Ask before installing/upgrading software, changing permissions, or touching user-owned devices.

Archive the initial artifacts before a retry because fixed screenshot names may be overwritten. Preserve initial and retry outcomes.

6. Report and decide

Review screenshots under output/logs/testlogs/integration/. Report:

• immutable BAR/build ID, build link, source branch/commit, and package feed;
• exact SkiaSharp and HarfBuzzSharp versions;
• every approved ID with initial, repair, retry, and final result;
• missing or intentionally omitted host coverage; and
• screenshot paths and review status.

Combine host reports before deciding. Approve the exact BAR package family for team publication only when all required results and artifact checks pass, or when the release owner explicitly records an omission override. Otherwise state that release approval is blocked. This skill reports the decision but never performs the publication.