Function assert_columnar_count

nodedb-test-support/src/tx_batch_helpers.rs:350–370

Assert columnar row count equals `expected`. An empty or missing collection counts as 0.

(
    core: &mut CoreLoop,
    tx: &mut Producer<BridgeRequest>,
    rx: &mut Consumer<BridgeResponse>,
    collection: &str,
    expected: i64,
)

/// Assert columnar row count equals `expected`.
/// An empty or missing collection counts as 0.
pub fn assert_columnar_count(
    core: &mut CoreLoop,
    tx: &mut Producer<BridgeRequest>,
    rx: &mut Consumer<BridgeResponse>,
    collection: &str,
    expected: i64,
) {
    let payload = send_ok(core, tx, rx, columnar_count(collection));
    let json = payload_json(&payload);
    let val: serde_json::Value = serde_json::from_str(&json).unwrap_or(serde_json::Value::Null);
    let count = val
        .as_array()
        .and_then(|a| a.first())
        .and_then(|row| row.get("count(*)"))
        .and_then(|v| v.as_i64())
        .unwrap_or(0); // empty array = no rows = 0
    assert_eq!(
        count, expected,
        "columnar {collection} count: expected {expected}, got {count}; json={json}"
    );
}

/// Assert timeseries row count equals `expected`.
pub fn assert_ts_count(