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test(viewer): mock_data fixture proptest surface (WBS-6.2 #451) - #454

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test(viewer): mock_data fixture proptest surface (WBS-6.2 #451)#454
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fix/viewer-mock-data-properties-20260809

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@KooshaPari KooshaPari commented Aug 9, 2026

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Summary

Adds crates/sl-viewer/tests/properties_viewer_mock_data.rs with 18 proptest properties pinning the mock_data::sample_bundles and mock_data::sample_sessions deterministic fixture shapes (WBS-6.2 #451).

sample_bundles() (9 properties)

  • Non-empty, returns the documented 3-entry sample.
  • Every source_id is non-empty.
  • Every source_id is unique across the sample.
  • Every ContinuationBundle has at least one Bundle slice.
  • Every ContinuationBundle has at least one Intent slice.
  • Every Intent slice carries a non-empty goal field.
  • Every Acceptance slice carries ready: true.
  • Deterministic across calls.

sample_sessions() (9 properties)

  • Non-empty, returns the documented 3-entry sample.
  • Every session id is non-empty.
  • Every session id is unique across the sample.
  • Every session has at least one message.
  • Every session message has non-empty content.
  • Every session has non-empty cwd and title.
  • Every session contains at least one User and one Assistant message.
  • Deterministic across calls.

Validation

  • cargo test -p sl-viewer --test properties_viewer_mock_data --features "desktop parquet" --locked — 18 passed
  • cargo fmt --all --check — clean

WBS / TRACEABILITY

WBS-6.2 evidence list and TRACEABILITY.json gain crates/sl-viewer/tests/properties_viewer_mock_data.rs. CHANGELOG Unreleased documents the new surface.


CodeAnt-AI Description

Pin the viewer’s demo fixture data to the shapes required by the UI

What Changed

  • Added property checks ensuring demo bundles remain a deterministic three-item set with unique identifiers, bundle and intent content, goals, and ready acceptance states.
  • Added property checks ensuring demo sessions remain a deterministic three-item set with unique identifiers, messages, titles, working directories, and both user and assistant content.
  • Recorded the new fixture checks in the changelog and WBS-6.2 traceability evidence.

Impact

✅ Stable viewer demo bundles
✅ Complete session timelines
✅ Fewer silent screenshot and preview regressions

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Adds crates/sl-viewer/tests/properties_viewer_mock_data.rs with 18
proptest properties pinning the deterministic demo fixtures:

* sample_bundles():
  * Non-empty, returns the documented 3-entry sample.
  * Every source_id is non-empty and unique.
  * Every ContinuationBundle has at least one Bundle slice, at
    least one Intent slice, and an Intent with a non-empty goal.
  * Every Acceptance slice carries ready: true.
  * Deterministic across calls.
* sample_sessions():
  * Non-empty, returns the documented 3-entry sample.
  * Every session id is non-empty and unique.
  * Every session has at least one non-empty-content message.
  * Every session has non-empty cwd and title.
  * Every session contains at least one User and one Assistant
    message so the timeline UI can render both sides.
  * Deterministic across calls.

Updates WBS-6.2 evidence list, TRACEABILITY.json, and CHANGELOG.
Copilot AI lite review requested due to automatic review settings August 9, 2026 21:07
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Status Commit Started (UTC) Finished (UTC)
✅ Reviewed your PR 2636b31 Aug 09, 2026 · 21:07 21:10

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Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

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📒 Files selected for processing (4)
  • CHANGELOG.md
  • crates/sl-viewer/tests/properties_viewer_mock_data.rs
  • docs/ops/TRACEABILITY.json
  • docs/ops/WBS.md

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@codeant-ai codeant-ai Bot added the size:L This PR changes 100-499 lines, ignoring generated files label Aug 9, 2026
@KooshaPari

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Closing due to merge conflicts.

@KooshaPari KooshaPari closed this Aug 9, 2026
@KooshaPari
KooshaPari deleted the fix/viewer-mock-data-properties-20260809 branch August 9, 2026 21:08
Comment on lines +114 to +118
for cb in &sample_bundles() {
for b in cb.bundles.iter().filter(|b| b.kind == BundleKind::Acceptance) {
let ready = b.body.get("ready").and_then(|v| v.as_bool());
prop_assert_eq!(ready, Some(true));
}

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Suggestion: The loop is vacuous when a continuation bundle contains no Acceptance slice, so removing all acceptance gates would still pass this test even though ContinuationBundle::is_injectable() and the viewer readiness badge require one. Assert that every continuation bundle has at least one Acceptance bundle before validating its ready field. [incomplete implementation]

Severity Level: Major ⚠️
- ❌ Demo bundle can lose its injectable acceptance gate.
- ⚠️ Viewer readiness state can silently show an incomplete fixture.
- ⚠️ Regression test passes despite missing acceptance coverage.

Fix in Cursor Fix in VSCode Claude

Prompt for AI Agent 🤖
This is a comment left during a code review.

**Path:** crates/sl-viewer/tests/properties_viewer_mock_data.rs
**Line:** 114:118
**Comment:**
	*Incomplete Implementation: The loop is vacuous when a continuation bundle contains no `Acceptance` slice, so removing all acceptance gates would still pass this test even though `ContinuationBundle::is_injectable()` and the viewer readiness badge require one. Assert that every continuation bundle has at least one `Acceptance` bundle before validating its `ready` field.

Validate the correctness of the flagged issue. If correct, How can I resolve this? If you propose a fix, implement it and please make it concise.
Once fix is implemented, also check other comments on the same PR, and ask user if the user wants to fix the rest of the comments as well. if said yes, then fetch all the comments validate the correctness and implement a minimal fix
👍 | 👎

Comment on lines +222 to +225
for (x, y) in a.iter().zip(b.iter()) {
prop_assert_eq!(&x.id, &y.id);
prop_assert_eq!(&x.cwd, &y.cwd);
prop_assert_eq!(&x.title, &y.title);

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Suggestion: The session determinism check also omits Session::corpus, which is rendered in corpus labels and used for corpus breakdowns. A fixture could change a session's corpus and still pass this test; compare x.corpus and y.corpus as well. [incomplete implementation]

Severity Level: Major ⚠️
- ⚠️ Mock corpus badges can silently display wrong providers.
- ⚠️ Corpus breakdown counts can change unnoticed.
- ⚠️ History timeline carries corpus into rendered labels.

Fix in Cursor Fix in VSCode Claude

Prompt for AI Agent 🤖
This is a comment left during a code review.

**Path:** crates/sl-viewer/tests/properties_viewer_mock_data.rs
**Line:** 222:225
**Comment:**
	*Incomplete Implementation: The session determinism check also omits `Session::corpus`, which is rendered in corpus labels and used for corpus breakdowns. A fixture could change a session's corpus and still pass this test; compare `x.corpus` and `y.corpus` as well.

Validate the correctness of the flagged issue. If correct, How can I resolve this? If you propose a fix, implement it and please make it concise.
Once fix is implemented, also check other comments on the same PR, and ask user if the user wants to fix the rest of the comments as well. if said yes, then fetch all the comments validate the correctness and implement a minimal fix
👍 | 👎

Comment on lines +227 to +229
for (mx, my) in x.messages.iter().zip(y.messages.iter()) {
prop_assert_eq!(mx.role, my.role);
prop_assert_eq!(&mx.content, &my.content);

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Suggestion: The session determinism check compares roles and content but omits every message's ts_ms. Those timestamps drive session ordering and last-activity display, so changing or dropping them would alter the viewer while this test still passes. Include each message timestamp in the comparison. [incomplete implementation]

Severity Level: Major ⚠️
- ⚠️ Mock Raw Sessions activity dates can drift silently.
- ⚠️ Session ordering can change after timestamp edits.
- ⚠️ Determinism property omits rendered temporal metadata.

Fix in Cursor Fix in VSCode Claude

Prompt for AI Agent 🤖
This is a comment left during a code review.

**Path:** crates/sl-viewer/tests/properties_viewer_mock_data.rs
**Line:** 227:229
**Comment:**
	*Incomplete Implementation: The session determinism check compares roles and content but omits every message's `ts_ms`. Those timestamps drive session ordering and last-activity display, so changing or dropping them would alter the viewer while this test still passes. Include each message timestamp in the comparison.

Validate the correctness of the flagged issue. If correct, How can I resolve this? If you propose a fix, implement it and please make it concise.
Once fix is implemented, also check other comments on the same PR, and ask user if the user wants to fix the rest of the comments as well. if said yes, then fetch all the comments validate the correctness and implement a minimal fix
👍 | 👎

KooshaPari added a commit that referenced this pull request Aug 9, 2026
* test(viewer): mock_data fixture proptest surface (WBS-6.2 #451)

Adds crates/sl-viewer/tests/properties_viewer_mock_data.rs with 18
proptest properties pinning the deterministic demo fixtures:

* sample_bundles():
  * Non-empty, returns the documented 3-entry sample.
  * Every source_id is non-empty and unique.
  * Every ContinuationBundle has at least one Bundle slice, at
    least one Intent slice, and an Intent with a non-empty goal.
  * Every Acceptance slice carries ready: true.
  * Deterministic across calls.
* sample_sessions():
  * Non-empty, returns the documented 3-entry sample.
  * Every session id is non-empty and unique.
  * Every session has at least one non-empty-content message.
  * Every session has non-empty cwd and title.
  * Every session contains at least one User and one Assistant
    message so the timeline UI can render both sides.
  * Deterministic across calls.

Updates WBS-6.2 evidence list, TRACEABILITY.json, and CHANGELOG.

* test(viewer): theme + settings property surfaces (WBS-6.2 #454)

Adds two complementary property surfaces for sl-viewer's pure
data-reducers:

* crates/sl-viewer/tests/properties_viewer_theme.rs (28 props):
  - Theme::default() is System; JSON round-trips for every variant.
  - ThemeColors::dark and ThemeColors::light each expose 9 fields
    that all match the documented lab_coat::* constants; every
    field is non-empty; focus == accent for both palettes.
  - for_theme(Dark|Light|System) is the documented palette.

* crates/sl-viewer/tests/properties_viewer_settings.rs (21 props):
  - DefaultTab::default() is Bundles; ALL covers every variant,
    length 9, every tab_id/value_attr unique kebab-case ASCII.
  - Settings::default() matches documented; JSON round-trips;
    serialised theme is lowercase, default_tab is kebab-case.
  - save_to_path / load_from_path round-trip; missing/corrupt
    files fall back to default(); parent dirs created.
  - resolve_settings_dir honours overrides; falls through on
    empty; picks documented macOS / Windows / Linux paths.

Updates WBS-6.2 evidence list, TRACEABILITY.json, and CHANGELOG.

---------

Co-authored-by: SessionLedger Bot <team@sessionledger.local>
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