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wickra/bindings/r/tests/testthat/test-binance.R
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# 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"
)
})