desktop/src-tauri/crates/core/tests/pi_contract.rs

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//! pi requirement tests use native redacted M2-B/C recovery data from local pi 0.87.1:

//! session-error-zero-usage. Read, parse, normalize, commit_batch and query;

//! compare manually calculated tests/fixtures/pi/session-error-zero-usage._expectations.md.

// Expected values are calculated manually and checked record-by-record with jq:

// Seven records: session/model_change/thinking_level_change/custom/system message/

// custom_message/assistant message; only the seventh assistant produces an event.

// All five usage fields explicitly report zero, including totalTokens; these zeros are known.

// Reasoning is absent and remains unknown; cost.total=0 does not produce a cost value.

// stopReason=error sets error_status="error"; responseId/duration/ttft are absent.

// Explicitly reported zero is known.

// Check category/model/provider/version/error/unknown fields through SQL.

// pi has no cumulative snapshots and produces no reconciliation results.

// All eight field capability entries are present.

// Capability metadata survives storage in source_instances.capabilities.