v0.2.11-pre.002

crates/ksp-offchain-transport-lib/unit_tests/observation.rs

@@ -0,0 +1,69 @@
+// file: crates/ksp-offchain-transport-lib/unit_tests/observation.rs
+// version: 1
+
+#[test]
+fn observation_preserves_pair_exact_price_semantics_timestamps_and_safe_provenance() -> ksp_core_lib::Result<()> {
+    let provider_id = match crate::PriceProviderId::new("kraken") {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(error) => return std::result::Result::Err(error),
+    };
+    let price = match crate::PriceDecimal::parse("204.125") {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(error) => return std::result::Result::Err(error),
+    };
+    let provenance = match crate::PriceProvenance::new("market=SOL/USD") {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(error) => return std::result::Result::Err(error),
+    };
+    let started = crate::PriceTimestamp::from_unix_millis(10_000);
+    let received = crate::PriceTimestamp::from_unix_millis(10_250);
+    let observation = match crate::SolUsdPriceObservation::new(
+        provider_id,
+        price,
+        crate::PriceSemantics::ExchangeLastTrade,
+        started,
+        received,
+        std::option::Option::None,
+        provenance,
+    ) {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(error) => return std::result::Result::Err(error),
+    };
+    assert_eq!(observation.pair(), crate::PricePair::SolUsd);
+    assert_eq!(observation.pair().code(), "SOL/USD");
+    assert_eq!(observation.price(), price);
+    assert_eq!(observation.semantics(), crate::PriceSemantics::ExchangeLastTrade);
+    assert_eq!(observation.request_started_at(), started);
+    assert_eq!(observation.received_at(), received);
+    assert_eq!(observation.provider_timestamp(), std::option::Option::None);
+    assert_eq!(observation.provenance().as_str(), "market=SOL/USD");
+    return std::result::Result::Ok(());
+}
+
+#[test]
+fn observation_rejects_reversed_ksp_timestamps_and_unsafe_provenance() -> ksp_core_lib::Result<()> {
+    assert!(crate::PriceProvenance::new("line\nbreak").is_err());
+    let provider_id = match crate::PriceProviderId::new("coingecko") {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(error) => return std::result::Result::Err(error),
+    };
+    let price = match crate::PriceDecimal::parse("200") {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(error) => return std::result::Result::Err(error),
+    };
+    let provenance = match crate::PriceProvenance::new("asset=solana") {
+        std::result::Result::Ok(value) => value,
+        std::result::Result::Err(error) => return std::result::Result::Err(error),
+    };
+    let result = crate::SolUsdPriceObservation::new(
+        provider_id,
+        price,
+        crate::PriceSemantics::AggregatedMarket,
+        crate::PriceTimestamp::from_unix_millis(2),
+        crate::PriceTimestamp::from_unix_millis(1),
+        std::option::Option::None,
+        provenance,
+    );
+    assert!(result.is_err());
+    return std::result::Result::Ok(());
+}