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

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//! v6 user attribution/query filtering and aggregate exchange regressions:

//! export/import preserves data, repeated imports and revision handling.

// Two sources each write one day; A uses default, B changes to user2.

// commit_batch does not register source instances; normally upsert does so, but this test creates them directly.

// Filter by each user's source-instance set, matching application query resolution.

// Without a filter, count both shared-host users once per source.

// Export database A has one source across two days with hourly aggregates.

// build_export supplies complete daily partitions; check source/host metadata here.

// Aggregate import uses partitions without adding exported detail records again.

// Import a JSON round-trip bundle into empty database B.

// Reimport identical content at the same revision: skip two daily partitions, with no duplicates or replacements.

// Query imported history after rebuilding source aggregates.

// Initial revision 5 inserts the partition.

// Higher revision 6 corrects the value to 80 under V02.

// Lower revision 4 conflicts and retains the stored value.

// Register imported hosts as external.

// Reject mismatched database versions under the no-incremental-migration rule.