// file: crates/ksp-onchain-transport-lib/unit_tests/rpc_transactions.rs
// version: 4

#[test]
fn transaction_encoding_strings_match_current_and_legacy_wire_labels() {
    assert_eq!(crate::SolanaTransactionBinaryEncoding::Base58.as_str(), "base58");
    assert_eq!(crate::SolanaTransactionBinaryEncoding::Base64.as_str(), "base64");
    assert_eq!(crate::SolanaTransactionEncoding::Binary.as_str(), "binary");
    assert_eq!(crate::SolanaTransactionEncoding::Base58.as_str(), "base58");
    assert_eq!(crate::SolanaTransactionEncoding::Base64.as_str(), "base64");
    assert_eq!(crate::SolanaTransactionEncoding::Json.as_str(), "json");
    assert_eq!(crate::SolanaTransactionEncoding::JsonParsed.as_str(), "jsonParsed");
}

#[test]
fn wire_field_preserves_omitted_null_and_value_states() {
    #[derive(serde::Deserialize)]
    struct Holder {
        #[serde(default)]
        field: crate::SolanaWireField<u64>,
    }

    let omitted = serde_json::from_value::<Holder>(serde_json::json!({})).expect("omitted fixture must decode");
    let null = serde_json::from_value::<Holder>(serde_json::json!({"field": null})).expect("null fixture must decode");
    let value = serde_json::from_value::<Holder>(serde_json::json!({"field": 7})).expect("value fixture must decode");
    assert!(omitted.field.is_omitted());
    assert!(!omitted.field.is_null());
    assert_eq!(omitted.field.value(), std::option::Option::None);
    assert!(null.field.is_null());
    assert!(!null.field.is_omitted());
    assert_eq!(null.field.value(), std::option::Option::None);
    assert_eq!(value.field.value(), std::option::Option::Some(&7));
}

#[test]
fn get_transaction_config_serializes_modern_object_without_legacy_overload() {
    let config = crate::SolanaGetTransactionConfig::new(
        std::option::Option::Some(crate::SolanaCommitment::Confirmed),
        std::option::Option::Some(crate::SolanaTransactionEncoding::JsonParsed),
        std::option::Option::Some(0),
    );
    assert!(!config.is_empty());
    assert_eq!(config.to_json_value(), serde_json::json!({"commitment":"confirmed","encoding":"jsonParsed","maxSupportedTransactionVersion":0}));
    assert!(crate::SolanaGetTransactionConfig::default().is_empty());
    assert_eq!(crate::SolanaGetTransactionConfig::default().to_json_value(), serde_json::json!({}));
}

#[test]
fn signatures_for_address_config_preserves_pagination_and_context_order_independently() {
    let config = crate::SolanaSignaturesForAddressConfig::new(
        std::option::Option::Some("before-signature".to_owned()),
        std::option::Option::Some("until-signature".to_owned()),
        std::option::Option::Some(25),
        std::option::Option::Some(crate::SolanaCommitment::Finalized),
        std::option::Option::Some(430_000_000),
    );
    assert_eq!(config.before(), std::option::Option::Some("before-signature"));
    assert_eq!(config.until(), std::option::Option::Some("until-signature"));
    assert_eq!(config.limit(), std::option::Option::Some(25));
    assert_eq!(config.commitment(), std::option::Option::Some(crate::SolanaCommitment::Finalized));
    assert_eq!(config.min_context_slot(), std::option::Option::Some(430_000_000));
    assert_eq!(
        config.to_json_value(),
        serde_json::json!({
            "before":"before-signature",
            "until":"until-signature",
            "limit":25,
            "commitment":"finalized",
            "minContextSlot":430000000
        })
    );
    assert!(crate::SolanaSignaturesForAddressConfig::default().is_empty());
}

#[test]
fn signature_status_and_airdrop_configs_preserve_explicit_options() {
    let status = crate::SolanaSignatureStatusesConfig::new(std::option::Option::Some(false));
    assert!(!status.is_empty());
    assert_eq!(status.search_transaction_history(), std::option::Option::Some(false));
    assert_eq!(status.to_json_value(), serde_json::json!({"searchTransactionHistory":false}));
    assert!(crate::SolanaSignatureStatusesConfig::default().is_empty());
    let airdrop = crate::SolanaRequestAirdropConfig::new(
        std::option::Option::Some("recent-blockhash".to_owned()),
        std::option::Option::Some(crate::SolanaCommitment::Confirmed),
    );
    assert!(!airdrop.is_empty());
    assert_eq!(airdrop.recent_blockhash(), std::option::Option::Some("recent-blockhash"));
    assert_eq!(airdrop.commitment(), std::option::Option::Some(crate::SolanaCommitment::Confirmed));
    assert_eq!(airdrop.to_json_value(), serde_json::json!({"recentBlockhash":"recent-blockhash","commitment":"confirmed"}));
    assert!(crate::SolanaRequestAirdropConfig::default().is_empty());
}

#[test]
fn send_transaction_config_keeps_node_retries_distinct_from_transport_policy() {
    let config = crate::SolanaSendTransactionConfig::new(
        std::option::Option::Some(true),
        std::option::Option::Some(crate::SolanaCommitment::Processed),
        std::option::Option::Some(crate::SolanaTransactionBinaryEncoding::Base64),
        std::option::Option::Some(4),
        std::option::Option::Some(430_000_000),
    );
    assert_eq!(config.skip_preflight(), std::option::Option::Some(true));
    assert_eq!(config.max_retries(), std::option::Option::Some(4));
    assert_eq!(
        config.to_json_value(),
        serde_json::json!({
            "skipPreflight":true,
            "preflightCommitment":"processed",
            "encoding":"base64",
            "maxRetries":4,
            "minContextSlot":430000000
        })
    );
    assert!(crate::SolanaSendTransactionConfig::default().is_empty());
}

#[test]
fn simulate_transaction_config_serializes_accounts_and_flags_without_decoding_transaction() {
    let address = "11111111111111111111111111111111".parse::<ksp_core_lib::Pubkey>().expect("fixture pubkey must parse");
    let accounts = crate::SolanaSimulationAccountsConfig::new(std::option::Option::Some(crate::SolanaAccountEncoding::Base64), std::vec![address]);
    let config = crate::SolanaSimulateTransactionConfig::new(
        std::option::Option::Some(crate::SolanaCommitment::Confirmed),
        std::option::Option::Some(crate::SolanaTransactionBinaryEncoding::Base64),
        std::option::Option::Some(true),
        std::option::Option::Some(false),
        std::option::Option::Some(430_000_000),
        std::option::Option::Some(true),
        std::option::Option::Some(accounts),
    );
    assert_eq!(config.encoding(), std::option::Option::Some(crate::SolanaTransactionBinaryEncoding::Base64));
    assert_eq!(config.replace_recent_blockhash(), std::option::Option::Some(true));
    assert_eq!(config.sig_verify(), std::option::Option::Some(false));
    assert_eq!(config.accounts().expect("accounts config must be present").addresses(), &[address]);
    assert_eq!(
        config.to_json_value(),
        serde_json::json!({
            "commitment":"confirmed",
            "encoding":"base64",
            "replaceRecentBlockhash":true,
            "sigVerify":false,
            "minContextSlot":430000000,
            "innerInstructions":true,
            "accounts":{"encoding":"base64","addresses":["11111111111111111111111111111111"]}
        })
    );
    assert!(crate::SolanaSimulateTransactionConfig::default().is_empty());
}

#[test]
fn latest_blockhash_fixture_decodes_shared_result() {
    let value =
        serde_json::from_str::<serde_json::Value>(include_str!("../fixtures/http/latest_blockhash.v4_2_1.json")).expect("latest blockhash fixture must decode");
    let blockhash = crate::SolanaLatestBlockhash::decode_wire("getLatestBlockhash", value).expect("latest blockhash must decode");
    assert_eq!(blockhash.blockhash(), "11111111111111111111111111111111");
    assert_eq!(blockhash.last_valid_block_height(), 430_123_456);
}

#[test]
fn latest_blockhash_rejects_empty_wire_value() {
    let result = crate::SolanaLatestBlockhash::decode_wire("getLatestBlockhash", serde_json::json!({"blockhash":"","lastValidBlockHeight":430123456}));
    assert_eq!(result.expect_err("empty blockhash must fail closed").code(), crate::ERROR_CODE_INVALID_RESPONSE);
}

#[test]
fn prioritization_fee_fixture_preserves_server_order() {
    let values = serde_json::from_str::<std::vec::Vec<serde_json::Value>>(include_str!("../fixtures/http/prioritization_fee.v4_2_1.json"))
        .expect("prioritization fee fixture must decode");
    let first = crate::SolanaPrioritizationFee::decode_wire("getRecentPrioritizationFees", values[0].clone()).expect("first fee must decode");
    let second = crate::SolanaPrioritizationFee::decode_wire("getRecentPrioritizationFees", values[1].clone()).expect("second fee must decode");
    assert_eq!(first.slot(), 430_000_123);
    assert_eq!(first.prioritization_fee(), 1_000);
    assert_eq!(second.slot(), 430_000_122);
    assert_eq!(second.prioritization_fee(), 0);
}

#[test]
fn signature_info_fixture_accepts_current_transaction_index_and_older_omission() {
    let values = serde_json::from_str::<std::vec::Vec<serde_json::Value>>(include_str!("../fixtures/http/signature_info.v4_2_1.json"))
        .expect("signature info fixture must decode");
    let current = crate::SolanaSignatureInfo::decode_wire("getSignaturesForAddress", values[0].clone()).expect("current signature info must decode");
    let older = crate::SolanaSignatureInfo::decode_wire("getSignaturesForAddress", values[1].clone()).expect("older signature info must decode");
    assert_eq!(current.slot(), 430_000_123);
    assert_eq!(current.memo(), std::option::Option::Some("fixture memo"));
    assert_eq!(current.transaction_index(), std::option::Option::Some(7));
    assert_eq!(current.confirmation_status(), std::option::Option::Some(crate::SolanaTransactionConfirmationStatus::Finalized));
    assert_eq!(older.transaction_index(), std::option::Option::None);
    assert!(older.err().is_some());
    assert_eq!(older.confirmation_status(), std::option::Option::Some(crate::SolanaTransactionConfirmationStatus::Confirmed));
}

#[test]
fn signature_status_fixture_preserves_position_null_and_legacy_status_value() {
    let values = serde_json::from_str::<std::vec::Vec<serde_json::Value>>(include_str!("../fixtures/http/signature_status.variants.json"))
        .expect("signature status fixture must decode");
    assert!(values[0].is_null());
    let rooted = crate::SolanaSignatureStatus::decode_wire("getSignatureStatuses", values[1].clone()).expect("rooted signature status must decode");
    let errored = crate::SolanaSignatureStatus::decode_wire("getSignatureStatuses", values[2].clone()).expect("errored signature status must decode");
    assert_eq!(rooted.confirmations(), std::option::Option::None);
    assert_eq!(rooted.status(), &serde_json::json!({"Ok":null}));
    assert_eq!(rooted.confirmation_status(), std::option::Option::Some(crate::SolanaTransactionConfirmationStatus::Finalized));
    assert_eq!(errored.confirmations(), std::option::Option::Some(3));
    assert!(errored.err().is_some());
}

#[test]
fn unknown_confirmation_status_is_rejected_as_invalid_response() {
    let result = crate::SolanaSignatureStatus::decode_wire(
        "getSignatureStatuses",
        serde_json::json!({"slot":1,"confirmations":0,"status":{"Ok":null},"err":null,"confirmationStatus":"future-status"}),
    );
    let error = result.expect_err("unknown confirmation status must fail closed");
    assert_eq!(error.code(), crate::ERROR_CODE_INVALID_RESPONSE);
}

#[test]
fn encoded_transaction_fixture_preserves_legacy_binary_tuple_and_json_shapes() {
    let values = serde_json::from_str::<std::vec::Vec<serde_json::Value>>(include_str!("../fixtures/http/encoded_transaction.variants.json"))
        .expect("encoded transaction fixture must decode");
    let legacy = crate::SolanaEncodedTransaction::decode_wire("getTransaction", values[0].clone()).expect("legacy transaction must decode");
    let binary = crate::SolanaEncodedTransaction::decode_wire("getTransaction", values[1].clone()).expect("binary transaction must decode");
    let json = crate::SolanaEncodedTransaction::decode_wire("getTransaction", values[2].clone()).expect("JSON transaction must decode");
    assert!(matches!(legacy, crate::SolanaEncodedTransaction::LegacyBinary(_)));
    assert!(matches!(binary, crate::SolanaEncodedTransaction::Binary { encoding: crate::SolanaTransactionBinaryEncoding::Base64, .. }));
    assert!(matches!(json, crate::SolanaEncodedTransaction::Json(_)));
    let invalid = crate::SolanaEncodedTransaction::decode_wire("getTransaction", serde_json::json!(["payload", "json"]));
    assert_eq!(invalid.expect_err("non-binary tuple encoding must fail").code(), crate::ERROR_CODE_INVALID_RESPONSE);
}

#[test]
fn confirmed_transaction_fixture_preserves_meta_version_and_transaction_index_states() {
    let values = serde_json::from_str::<std::vec::Vec<serde_json::Value>>(include_str!("../fixtures/http/confirmed_transaction.variants.json"))
        .expect("confirmed transaction fixture must decode");
    let current = crate::SolanaConfirmedTransaction::decode_wire("getTransaction", values[0].clone()).expect("current transaction must decode");
    let legacy = crate::SolanaConfirmedTransaction::decode_wire("getTransaction", values[1].clone()).expect("legacy transaction must decode");
    let omitted = crate::SolanaConfirmedTransaction::decode_wire("getTransaction", values[2].clone()).expect("omitted-field transaction must decode");
    assert_eq!(current.slot(), 430_000_123);
    assert_eq!(current.version().value(), std::option::Option::Some(&crate::SolanaTransactionVersion::Number(0)));
    assert_eq!(current.transaction_index().value(), std::option::Option::Some(&7));
    assert!(current.meta().value().is_some());
    assert_eq!(legacy.version().value(), std::option::Option::Some(&crate::SolanaTransactionVersion::Legacy));
    assert!(legacy.meta().is_null());
    assert!(legacy.transaction_index().is_null());
    assert!(omitted.meta().is_omitted());
    assert!(omitted.version().is_omitted());
    assert!(omitted.transaction_index().is_omitted());
}

#[test]
fn confirmed_transaction_rejects_unknown_version_shape() {
    let result = crate::SolanaConfirmedTransaction::decode_wire(
        "getTransaction",
        serde_json::json!({"slot":1,"blockTime":null,"transaction":"legacy","meta":null,"version":"v0"}),
    );
    assert_eq!(result.expect_err("unknown version label must fail").code(), crate::ERROR_CODE_INVALID_RESPONSE);
}

#[test]
fn simulation_result_fixture_preserves_rich_optional_fields_and_positional_null_accounts() {
    let value = serde_json::from_str::<serde_json::Value>(include_str!("../fixtures/http/simulate_transaction_result.v4_2_1.json"))
        .expect("simulation result fixture must decode");
    let result = crate::SolanaSimulateTransactionResult::decode_wire("simulateTransaction", value).expect("simulation result must decode");
    assert!(result.err().is_null());
    assert_eq!(result.logs().value().expect("logs must be present").len(), 2);
    let accounts = result.accounts().value().expect("accounts must be present");
    assert_eq!(accounts.len(), 2);
    assert_eq!(accounts[0].as_ref().expect("first account must be present").lamports(), 1_000);
    assert!(accounts[1].is_none());
    assert_eq!(result.units_consumed().value(), std::option::Option::Some(&150));
    assert_eq!(result.loaded_accounts_data_size().value(), std::option::Option::Some(&64));
    assert_eq!(result.fee().value(), std::option::Option::Some(&5_000));
    let replacement = result.replacement_blockhash().value().expect("replacement blockhash must be present");
    assert_eq!(replacement.blockhash(), "ComputeBudget111111111111111111111111111111");
    assert!(result.return_data().value().is_some());
    assert!(result.inner_instructions().value().is_some());
    assert!(result.pre_token_balances().value().is_some());
    assert!(result.post_token_balances().value().is_some());
    assert!(result.loaded_addresses().value().is_some());
}

#[test]
fn simulation_result_distinguishes_omitted_from_explicit_null_fields() {
    let result = crate::SolanaSimulateTransactionResult::decode_wire("simulateTransaction", serde_json::json!({"err":null,"logs":null,"unitsConsumed":1}))
        .expect("partial simulation result must decode");
    assert!(result.err().is_null());
    assert!(result.logs().is_null());
    assert_eq!(result.units_consumed().value(), std::option::Option::Some(&1));
    assert!(result.accounts().is_omitted());
    assert!(result.replacement_blockhash().is_omitted());
    assert!(result.loaded_addresses().is_omitted());
}

fn transaction_pool_for_url(url: &str) -> crate::HttpTransportPool {
    let role = crate::HttpEndpointRoleSettings::new(
        crate::HttpRoleName::new("default"),
        true,
        std::vec![crate::HttpRequestKind::wildcard()],
        10,
        crate::HttpRoleLimits::new(std::option::Option::None, std::option::Option::None, std::option::Option::None, std::option::Option::None),
    );
    let endpoint = crate::HttpEndpointSettings::new(
        "fixture",
        true,
        crate::HttpProviderName::new("fixture"),
        crate::HttpClusterName::new("local"),
        crate::HttpEndpointUrl::parse(url).expect("fixture URL must parse"),
        std::time::Duration::from_secs(1),
        std::time::Duration::from_secs(1),
        std::option::Option::Some(1),
        std::vec![role],
    );
    let settings = crate::HttpTransportSettings::new(
        std::vec![endpoint],
        crate::HttpRetrySettings::new(0, std::time::Duration::from_millis(1), std::time::Duration::from_millis(1)),
    );
    return crate::HttpTransportPool::new(settings).expect("fixture pool must build");
}

fn serve_transaction_once(body: &'static str) -> (std::string::String, std::thread::JoinHandle<std::string::String>) {
    let listener = std::net::TcpListener::bind("127.0.0.1:0").expect("fixture listener must bind");
    let address = listener.local_addr().expect("fixture listener address must resolve");
    let handle = std::thread::spawn(move || {
        let (mut stream, _) = listener.accept().expect("fixture server must accept one request");
        let request = read_transaction_request(&mut stream);
        let response = format!("HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: {}\r\nConnection: close\r\n\r\n{}", body.len(), body,);
        std::io::Write::write_all(&mut stream, response.as_bytes()).expect("fixture response must write");
        return request;
    });
    return (format!("http://{address}"), handle);
}

fn read_transaction_request(stream: &mut std::net::TcpStream) -> std::string::String {
    let mut bytes = std::vec::Vec::new();
    let mut buffer = [0_u8; 1024];
    loop {
        let count = std::io::Read::read(stream, &mut buffer).expect("fixture request must read");
        if count == 0 {
            break;
        }
        bytes.extend_from_slice(&buffer[..count]);
        if transaction_request_complete(bytes.as_slice()) {
            break;
        }
    }
    return std::string::String::from_utf8(bytes).expect("fixture request must be UTF-8");
}

fn transaction_request_complete(bytes: &[u8]) -> bool {
    let text = match std::str::from_utf8(bytes) {
        std::result::Result::Ok(text) => text,
        std::result::Result::Err(_) => return false,
    };
    let header_end = match text.find("\r\n\r\n") {
        std::option::Option::Some(value) => value,
        std::option::Option::None => return false,
    };
    let mut content_length = 0_usize;
    for line in text[..header_end].lines() {
        let (name, value) = match line.split_once(':') {
            std::option::Option::Some(parts) => parts,
            std::option::Option::None => continue,
        };
        if name.eq_ignore_ascii_case("content-length") {
            content_length = value.trim().parse::<usize>().expect("content length must parse");
        }
    }
    return bytes.len() >= header_end.saturating_add(4).saturating_add(content_length);
}

fn transaction_request_body(request: &str) -> serde_json::Value {
    let body = request.split("\r\n\r\n").nth(1).expect("fixture request body must exist");
    return serde_json::from_str(body).expect("fixture request body must be JSON");
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_fee_for_message_serializes_exact_params_and_decodes_contextual_fee() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_fee_for_message.success.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let config = crate::SolanaContextConfig::new(std::option::Option::Some(crate::SolanaCommitment::Confirmed), std::option::Option::Some(431_000_000));
    let response = pool
        .get_fee_for_message(&crate::HttpRoleName::new("default"), "AQIDBA==", std::option::Option::Some(&config))
        .await
        .expect("getFeeForMessage fixture must succeed");
    assert_eq!(response.context().slot(), 431_000_001);
    assert_eq!(response.context().api_version(), std::option::Option::Some("4.2.1"));
    assert_eq!(response.value(), &std::option::Option::Some(5_000));
    let request = handle.join().expect("fixture server must join");
    let body = transaction_request_body(request.as_str());
    assert_eq!(body["method"], serde_json::json!("getFeeForMessage"));
    assert_eq!(body["params"], serde_json::json!(["AQIDBA==", {"commitment":"confirmed","minContextSlot":431000000}]));
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_fee_for_message_preserves_null_and_omits_absent_config() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_fee_for_message.null.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let response = pool
        .get_fee_for_message(&crate::HttpRoleName::new("default"), "opaque-message", std::option::Option::None)
        .await
        .expect("null fee fixture must succeed");
    assert_eq!(response.value(), &std::option::Option::None);
    let request = handle.join().expect("fixture server must join");
    assert_eq!(transaction_request_body(request.as_str())["params"], serde_json::json!(["opaque-message"]));
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_fee_for_message_preserves_rpc_application_error() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_fee_for_message.error.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let result = pool.get_fee_for_message(&crate::HttpRoleName::new("default"), "not-decoded-locally", std::option::Option::None).await;
    let error = result.expect_err("remote invalid message must remain an RPC application error");
    assert_eq!(error.code(), crate::ERROR_CODE_RPC_APPLICATION_ERROR);
    handle.join().expect("fixture server must join");
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_latest_blockhash_omits_empty_config_and_decodes_contextual_result() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_latest_blockhash.success.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let config = crate::SolanaContextConfig::default();
    let response = pool
        .get_latest_blockhash(&crate::HttpRoleName::new("default"), std::option::Option::Some(&config))
        .await
        .expect("getLatestBlockhash fixture must succeed");
    assert_eq!(response.context().slot(), 431_000_003);
    assert_eq!(response.value().blockhash(), "11111111111111111111111111111111");
    assert_eq!(response.value().last_valid_block_height(), 431_123_456);
    let request = handle.join().expect("fixture server must join");
    assert_eq!(transaction_request_body(request.as_str())["params"], serde_json::json!([]));
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_latest_blockhash_rejects_empty_blockhash_from_http_response() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_latest_blockhash.invalid_empty.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let result = pool.get_latest_blockhash(&crate::HttpRoleName::new("default"), std::option::Option::None).await;
    let error = result.expect_err("empty latest blockhash must fail typed decoding");
    assert_eq!(error.code(), crate::ERROR_CODE_INVALID_RESPONSE);
    handle.join().expect("fixture server must join");
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_transaction_count_serializes_context_config_and_decodes_u64() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_transaction_count.success.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let config = crate::SolanaContextConfig::new(std::option::Option::Some(crate::SolanaCommitment::Finalized), std::option::Option::None);
    let count = pool
        .get_transaction_count(&crate::HttpRoleName::new("default"), std::option::Option::Some(&config))
        .await
        .expect("getTransactionCount fixture must succeed");
    assert_eq!(count, 987_654_321);
    let request = handle.join().expect("fixture server must join");
    let body = transaction_request_body(request.as_str());
    assert_eq!(body["method"], serde_json::json!("getTransactionCount"));
    assert_eq!(body["params"], serde_json::json!([{"commitment":"finalized"}]));
}

#[tokio::test(flavor = "current_thread")]
async fn typed_is_blockhash_valid_preserves_opaque_blockhash_and_contextual_bool() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/is_blockhash_valid.success.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let config = crate::SolanaContextConfig::new(std::option::Option::Some(crate::SolanaCommitment::Processed), std::option::Option::Some(431_000_004));
    let response = pool
        .is_blockhash_valid(&crate::HttpRoleName::new("default"), "opaque-blockhash", std::option::Option::Some(&config))
        .await
        .expect("isBlockhashValid fixture must succeed");
    assert_eq!(response.context().slot(), 431_000_005);
    assert_eq!(response.value(), &true);
    let request = handle.join().expect("fixture server must join");
    let body = transaction_request_body(request.as_str());
    assert_eq!(body["method"], serde_json::json!("isBlockhashValid"));
    assert_eq!(body["params"], serde_json::json!(["opaque-blockhash", {"commitment":"processed","minContextSlot":431000004}]));
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_recent_prioritization_fees_serializes_addresses_and_preserves_server_order() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_recent_prioritization_fees.success.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let first = "11111111111111111111111111111111".parse::<ksp_core_lib::Pubkey>().expect("fixture pubkey must parse");
    let second = "SysvarRent111111111111111111111111111111111".parse::<ksp_core_lib::Pubkey>().expect("fixture pubkey must parse");
    let first_text = first.to_string();
    let second_text = second.to_string();
    let accounts = std::vec![first, second];
    let fees = pool
        .get_recent_prioritization_fees(&crate::HttpRoleName::new("default"), std::option::Option::Some(accounts.as_slice()))
        .await
        .expect("getRecentPrioritizationFees fixture must succeed");
    assert_eq!(fees.len(), 2);
    assert_eq!(fees[0].slot(), 431_000_030);
    assert_eq!(fees[0].prioritization_fee(), 1_200);
    assert_eq!(fees[1].slot(), 431_000_029);
    assert_eq!(fees[1].prioritization_fee(), 0);
    let request = handle.join().expect("fixture server must join");
    let body = transaction_request_body(request.as_str());
    assert_eq!(body["method"], serde_json::json!("getRecentPrioritizationFees"));
    assert_eq!(body["params"], serde_json::json!([[first_text, second_text]]));
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_recent_prioritization_fees_omits_optional_accounts_and_rejects_more_than_128_before_io() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_recent_prioritization_fees.success.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let fees = pool
        .get_recent_prioritization_fees(&crate::HttpRoleName::new("default"), std::option::Option::None)
        .await
        .expect("getRecentPrioritizationFees without addresses must succeed");
    assert_eq!(fees.len(), 2);
    let request = handle.join().expect("fixture server must join");
    assert_eq!(transaction_request_body(request.as_str())["params"], serde_json::json!([]));

    let account = "11111111111111111111111111111111".parse::<ksp_core_lib::Pubkey>().expect("fixture pubkey must parse");
    let max_accounts = std::vec![account; 128];
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_recent_prioritization_fees.success.json"));
    let max_pool = transaction_pool_for_url(url.as_str());
    let fees = max_pool
        .get_recent_prioritization_fees(&crate::HttpRoleName::new("default"), std::option::Option::Some(max_accounts.as_slice()))
        .await
        .expect("exactly 128 prioritization-fee accounts must remain accepted");
    assert_eq!(fees.len(), 2);
    let request = handle.join().expect("fixture server must join");
    let body = transaction_request_body(request.as_str());
    assert_eq!(body["params"][0].as_array().expect("address parameter must be an array").len(), 128);

    let invalid_pool = transaction_pool_for_url("http://127.0.0.1:9");
    let accounts = std::vec![account; 129];
    let result = invalid_pool.get_recent_prioritization_fees(&crate::HttpRoleName::new("default"), std::option::Option::Some(accounts.as_slice())).await;
    let error = result.expect_err("more than 128 prioritization-fee accounts must reject before I/O");
    assert_eq!(error.code(), crate::ERROR_CODE_INVALID_RPC_PARAMETERS);
    assert_eq!(error.context()[1].key(), "account_count");
    assert_eq!(error.context()[1].value(), "129");
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_signatures_for_address_serializes_pagination_and_preserves_newest_first_result() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_signatures_for_address.success.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let address = "11111111111111111111111111111111".parse::<ksp_core_lib::Pubkey>().expect("fixture pubkey must parse");
    let config = crate::SolanaSignaturesForAddressConfig::new(
        std::option::Option::Some("before-signature".to_owned()),
        std::option::Option::Some("until-signature".to_owned()),
        std::option::Option::Some(1_000),
        std::option::Option::Some(crate::SolanaCommitment::Finalized),
        std::option::Option::Some(431_000_000),
    );
    let signatures = pool
        .get_signatures_for_address(&crate::HttpRoleName::new("default"), &address, std::option::Option::Some(&config))
        .await
        .expect("getSignaturesForAddress fixture must succeed");
    assert_eq!(signatures.len(), 2);
    assert_eq!(signatures[0].signature(), "newest-signature");
    assert_eq!(signatures[0].slot(), 431_000_040);
    assert_eq!(signatures[0].memo(), std::option::Option::Some("memo-newest"));
    assert_eq!(signatures[0].block_time(), std::option::Option::Some(1_787_000_100));
    assert_eq!(signatures[0].confirmation_status(), std::option::Option::Some(crate::SolanaTransactionConfirmationStatus::Finalized));
    assert_eq!(signatures[0].transaction_index(), std::option::Option::Some(9));
    assert_eq!(signatures[1].signature(), "older-signature");
    assert!(signatures[1].err().is_some());
    assert_eq!(signatures[1].memo(), std::option::Option::None);
    assert_eq!(signatures[1].block_time(), std::option::Option::None);
    assert_eq!(signatures[1].transaction_index(), std::option::Option::None);
    let request = handle.join().expect("fixture server must join");
    let body = transaction_request_body(request.as_str());
    assert_eq!(body["method"], serde_json::json!("getSignaturesForAddress"));
    assert_eq!(
        body["params"],
        serde_json::json!([
            address.to_string(),
            {
                "before":"before-signature",
                "until":"until-signature",
                "limit":1000,
                "commitment":"finalized",
                "minContextSlot":431000000
            }
        ])
    );
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_signatures_for_address_rejects_limit_outside_1_to_1000_before_io() {
    let pool = transaction_pool_for_url("http://127.0.0.1:9");
    let address = "11111111111111111111111111111111".parse::<ksp_core_lib::Pubkey>().expect("fixture pubkey must parse");
    for limit in [0_usize, 1_001_usize] {
        let config = crate::SolanaSignaturesForAddressConfig::new(
            std::option::Option::None,
            std::option::Option::None,
            std::option::Option::Some(limit),
            std::option::Option::None,
            std::option::Option::None,
        );
        let result = pool.get_signatures_for_address(&crate::HttpRoleName::new("default"), &address, std::option::Option::Some(&config)).await;
        let error = result.expect_err("out-of-range getSignaturesForAddress limit must reject before I/O");
        assert_eq!(error.code(), crate::ERROR_CODE_INVALID_RPC_PARAMETERS);
        assert_eq!(error.context()[1].key(), "limit");
        assert_eq!(error.context()[1].value(), limit.to_string());
    }
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_signatures_for_address_preserves_rpc_application_error() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_signatures_for_address.error.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let address = "11111111111111111111111111111111".parse::<ksp_core_lib::Pubkey>().expect("fixture pubkey must parse");
    let result = pool.get_signatures_for_address(&crate::HttpRoleName::new("default"), &address, std::option::Option::None).await;
    let error = result.expect_err("remote transaction-history error must remain an RPC application error");
    assert_eq!(error.code(), crate::ERROR_CODE_RPC_APPLICATION_ERROR);
    handle.join().expect("fixture server must join");
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_signature_statuses_preserves_positional_nulls_and_history_config() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_signature_statuses.success.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let signatures = std::vec!["missing-signature".to_owned(), "finalized-signature".to_owned(), "confirmed-signature".to_owned()];
    let config = crate::SolanaSignatureStatusesConfig::new(std::option::Option::Some(true));
    let response = pool
        .get_signature_statuses(&crate::HttpRoleName::new("default"), signatures.as_slice(), std::option::Option::Some(&config))
        .await
        .expect("getSignatureStatuses fixture must succeed");
    assert_eq!(response.context().slot(), 431_000_050);
    assert_eq!(response.context().api_version(), std::option::Option::Some("4.2.1"));
    assert_eq!(response.value().len(), 3);
    assert!(response.value()[0].is_none());
    let finalized = response.value()[1].as_ref().expect("second positional status must be present");
    assert_eq!(finalized.slot(), 431_000_049);
    assert_eq!(finalized.confirmations(), std::option::Option::None);
    assert_eq!(finalized.status(), &serde_json::json!({"Ok":null}));
    assert_eq!(finalized.confirmation_status(), std::option::Option::Some(crate::SolanaTransactionConfirmationStatus::Finalized));
    let confirmed = response.value()[2].as_ref().expect("third positional status must be present");
    assert_eq!(confirmed.confirmations(), std::option::Option::Some(2));
    assert!(confirmed.err().is_some());
    let request = handle.join().expect("fixture server must join");
    let body = transaction_request_body(request.as_str());
    assert_eq!(body["method"], serde_json::json!("getSignatureStatuses"));
    assert_eq!(body["params"], serde_json::json!([signatures, {"searchTransactionHistory":true}]));
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_signature_statuses_accepts_empty_input_and_omits_empty_config() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_signature_statuses.empty.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let signatures = std::vec::Vec::<std::string::String>::new();
    let config = crate::SolanaSignatureStatusesConfig::default();
    let response = pool
        .get_signature_statuses(&crate::HttpRoleName::new("default"), signatures.as_slice(), std::option::Option::Some(&config))
        .await
        .expect("empty getSignatureStatuses input must remain accepted");
    assert!(response.value().is_empty());
    let request = handle.join().expect("fixture server must join");
    assert_eq!(transaction_request_body(request.as_str())["params"], serde_json::json!([[]]));
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_signature_statuses_accepts_256_and_rejects_more_than_256_before_io() {
    let signatures = std::vec!["signature".to_owned(); 256];
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_signature_statuses.max_256.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let response = pool
        .get_signature_statuses(&crate::HttpRoleName::new("default"), signatures.as_slice(), std::option::Option::None)
        .await
        .expect("exactly 256 signatures must remain accepted");
    assert_eq!(response.value().len(), 256);
    let request = handle.join().expect("fixture server must join");
    let body = transaction_request_body(request.as_str());
    assert_eq!(body["params"][0].as_array().expect("signature parameter must be an array").len(), 256);

    let invalid_pool = transaction_pool_for_url("http://127.0.0.1:9");
    let signatures = std::vec!["signature".to_owned(); 257];
    let result = invalid_pool.get_signature_statuses(&crate::HttpRoleName::new("default"), signatures.as_slice(), std::option::Option::None).await;
    let error = result.expect_err("more than 256 signatures must reject before I/O");
    assert_eq!(error.code(), crate::ERROR_CODE_INVALID_RPC_PARAMETERS);
    assert_eq!(error.context()[1].key(), "signature_count");
    assert_eq!(error.context()[1].value(), "257");
}

#[tokio::test(flavor = "current_thread")]
async fn typed_get_signature_statuses_rejects_response_count_mismatch() {
    let (url, handle) = serve_transaction_once(include_str!("../fixtures/http/get_signature_statuses.count_mismatch.json"));
    let pool = transaction_pool_for_url(url.as_str());
    let requested = std::vec!["first".to_owned(), "second".to_owned()];
    let result = pool.get_signature_statuses(&crate::HttpRoleName::new("default"), requested.as_slice(), std::option::Option::None).await;
    let error = result.expect_err("status response count mismatch must reject typed decoding");
    assert_eq!(error.code(), crate::ERROR_CODE_INVALID_RESPONSE);
    assert_eq!(error.context()[1].key(), "expected_count");
    assert_eq!(error.context()[1].value(), "2");
    assert_eq!(error.context()[2].key(), "actual_count");
    assert_eq!(error.context()[2].value(), "1");
    handle.join().expect("fixture server must join");
}