# The live Binance feed's connect -> read -> reconnect pipeline is covered # deterministically by the Rust mock-WS-server tests in wickra-data. Here we only # assert the binding's error paths, which need no network. test_that("binance feed rejects bad parameters", { expect_error(BinanceFeed("", 1L), "BinanceFeed") expect_error(BinanceFeed("BTCUSDT", 1L, "ws://127.0.0.1:1"), "BinanceFeed") }) # The REST fetcher's parse/HTTP success path is covered by the Rust # mock-HTTP-server tests; here we only assert the binding's error paths. test_that("fetch_binance_klines rejects bad parameters", { expect_error(fetch_binance_klines("BTCUSDT", 6L, 0L), "limit") expect_error( fetch_binance_klines("BTCUSDT", 6L, 1L, base_url = "http://127.0.0.1:1"), "fetch_binance_klines" ) })