# `testing.FakeSession.trace`

> Contract 2.0.0 · package sha256 `a857eca95b35921109faf997094bb4192f12527d9d0fcd4be7e97f06425bad6e` · generated from `testing.d.ts` by `services/onsite-scripter/scripts/build-contract-docs.mjs`; edit the source, not this file.

Method of [`testing.FakeSession`](testing.FakeSession.md) · stable · since 2.0.0

```ts
trace(): readonly TraceEntry[];
```

Every state change so far, in order: each operation's states (spec section 6.2), each drawn
frame that presents commits (member 'frame') and each commit's dispatch (member 'events').
[`capture()`](Session.capture.md) and [`export()`](Session.export.md) are no operations and never appear.

## Generic-API test (spec 3.1)

| Rule | Result |
| --- | --- |
| 1. Neutral name | pass: `trace` names no product |
| 2. A precedent | not recorded: no ledger row (coverage.json) names this member or its owner |
| 3. Two apps, or labs | not recorded: no ledger row names this member or its owner |
| 4. The cheaper fix first | not recorded per member (Appendix B decides it per need) |