test-utils: add crate::rpc::data module (#231)

* test-utils: add `crate::rpc::types` module

* test-utils: conditional json doc-tests

* json: add test data, fix macro doc tests

* json: add all data

* other: add all data

* bin: add skeleton

* docs

* move type to correct file

* rpc: `client/{client,constants}.rs` -> `client.rs`

* lib.rs: remove `clippy::module_inception`

Cargo.lock

@@ -785,6 +785,7 @@ dependencies = [
  "hex",
  "hex-literal",
  "monero-serai",
+ "paste",
  "pretty_assertions",
  "serde",
  "serde_json",

test-utils/Cargo.toml

@@ -22,7 +22,7 @@ serde = { workspace = true }
 serde_json   = { workspace = true }
 bytes        = { workspace = true, features = ["std"] }
 tempfile     = { workspace = true }
-
+paste        = { workspace = true }
 borsh        = { workspace = true, features = ["derive"]}
 
 [dev-dependencies]

test-utils/README.md

@@ -7,3 +7,4 @@ It currently contains:
 - Code to spawn monerod instances and a testing network zone
 - Real raw and typed Monero data, e.g. `Block, Transaction`
 - An RPC client to generate types from `cuprate_types`
+- Raw RPC request/response strings and binary data

test-utils/src/data/free.rs

@@ -292,7 +292,7 @@ mod tests {
 
     use pretty_assertions::assert_eq;
 
-    use crate::rpc::HttpRpcClient;
+    use crate::rpc::client::HttpRpcClient;
 
     /// Assert the defined blocks are the same compared to ones received from a local RPC call.
     #[ignore] // FIXME: doesn't work in CI, we need a real unrestricted node

test-utils/src/rpc/client.rs

@@ -12,7 +12,9 @@ use monero_serai::{
 
 use cuprate_types::{VerifiedBlockInformation, VerifiedTransactionInformation};
 
-use crate::rpc::constants::LOCALHOST_RPC_URL;
+//---------------------------------------------------------------------------------------------------- Constants
+/// The default URL used for Monero RPC connections.
+pub const LOCALHOST_RPC_URL: &str = "http://127.0.0.1:18081";
 
 //---------------------------------------------------------------------------------------------------- HttpRpcClient
 /// An HTTP RPC client for Monero.

test-utils/src/rpc/constants.rs

@@ -1,7 +0,0 @@
-//! RPC-related Constants.
-
-//---------------------------------------------------------------------------------------------------- Use
-
-//---------------------------------------------------------------------------------------------------- Constants
-/// The default URL used for Monero RPC connections.
-pub const LOCALHOST_RPC_URL: &str = "http://127.0.0.1:18081";

test-utils/src/rpc/data/bin.rs

@@ -0,0 +1,55 @@
+//! Binary data from [`.bin` endpoints](https://www.getmonero.org/resources/developer-guides/daemon-rpc.html#get_blocksbin).
+//!
+//! TODO: Not implemented yet.
+
+//---------------------------------------------------------------------------------------------------- Import
+use crate::rpc::data::macros::define_request_and_response;
+
+//---------------------------------------------------------------------------------------------------- TODO
+define_request_and_response! {
+    get_blocksbin,
+    GET_BLOCKS: &[u8],
+    Request = &[];
+    Response = &[];
+}
+
+define_request_and_response! {
+    get_blocks_by_heightbin,
+    GET_BLOCKS_BY_HEIGHT: &[u8],
+    Request = &[];
+    Response = &[];
+}
+
+define_request_and_response! {
+    get_hashesbin,
+    GET_HASHES: &[u8],
+    Request = &[];
+    Response = &[];
+}
+
+define_request_and_response! {
+    get_o_indexesbin,
+    GET_O_INDEXES: &[u8],
+    Request = &[];
+    Response = &[];
+}
+
+define_request_and_response! {
+    get_outsbin,
+    GET_OUTS: &[u8],
+    Request = &[];
+    Response = &[];
+}
+
+define_request_and_response! {
+    get_transaction_pool_hashesbin,
+    GET_TRANSACTION_POOL_HASHES: &[u8],
+    Request = &[];
+    Response = &[];
+}
+
+//---------------------------------------------------------------------------------------------------- Tests
+#[cfg(test)]
+mod test {
+    // use super::*;
+}

test-utils/src/rpc/data/macros.rs

@@ -0,0 +1,168 @@
+//! Macros.
+
+//---------------------------------------------------------------------------------------------------- define_request_and_response
+/// A template for generating the RPC request and response `const` data.
+///
+/// See the [`crate::json`] module for example usage.
+///
+/// # Macro internals
+/// This macro uses:
+/// - [`define_request_and_response_doc`]
+/// - [`define_request_and_response_test`]
+macro_rules! define_request_and_response {
+    (
+        // The markdown tag for Monero daemon RPC documentation. Not necessarily the endpoint.
+        //
+        // Adding `(json)` after this will trigger the macro to automatically
+        // add a `serde_json` test for the request/response data.
+        $monero_daemon_rpc_doc_link:ident $(($test:ident))?,
+
+        // The base name.
+        // Attributes added here will apply to _both_
+        // request and response types.
+        $( #[$attr:meta] )*
+        $name:ident: $type:ty,
+
+        // The request type (and any doc comments, derives, etc).
+        $( #[$request_attr:meta] )*
+        Request = $request:expr;
+
+        // The response type (and any doc comments, derives, etc).
+        $( #[$response_attr:meta] )*
+        Response = $response:expr;
+    ) => { paste::paste! {
+        #[doc = $crate::rpc::data::macros::define_request_and_response_doc!(
+            "response" => [<$name:upper _RESPONSE>],
+            $monero_daemon_rpc_doc_link,
+        )]
+        ///
+        $( #[$attr] )*
+        ///
+        $( #[$request_attr] )*
+        ///
+        $(
+            #[doc = $crate::rpc::data::macros::define_request_and_response_doc_test!([<$name:upper _REQUEST>], $test)]
+        )?
+        pub const [<$name:upper _REQUEST>]: $type = $request;
+
+        #[doc = $crate::rpc::data::macros::define_request_and_response_doc!(
+            "request" => [<$name:upper _REQUEST>],
+            $monero_daemon_rpc_doc_link,
+        )]
+        ///
+        $( #[$attr] )*
+        ///
+        $( #[$response_attr] )*
+        ///
+        $(
+            #[doc = $crate::rpc::data::macros::define_request_and_response_doc_test!([<$name:upper _RESPONSE>], $test)]
+        )?
+        pub const [<$name:upper _RESPONSE>]: $type = $response;
+    }};
+}
+pub(super) use define_request_and_response;
+
+//---------------------------------------------------------------------------------------------------- define_request_and_response_doc
+/// Generate documentation for the types generated
+/// by the [`define_request_and_response`] macro.
+///
+/// See it for more info on inputs.
+macro_rules! define_request_and_response_doc {
+    (
+        // This labels the last `[request]` or `[response]`
+        // hyperlink in documentation. Input is either:
+        // - "request"
+        // - "response"
+        //
+        // Remember this is linking to the _other_ type,
+        // so if defining a `Request` type, input should
+        // be "response".
+        $request_or_response:literal => $request_or_response_type:ident,
+        $monero_daemon_rpc_doc_link:ident,
+    ) => {
+        concat!(
+            "",
+            "[Documentation](",
+            "https://www.getmonero.org/resources/developer-guides/daemon-rpc.html",
+            "#",
+            stringify!($monero_daemon_rpc_doc_link),
+            "), [",
+            $request_or_response,
+            "](",
+            stringify!($request_or_response_type),
+            ")."
+        )
+    };
+}
+pub(super) use define_request_and_response_doc;
+
+//---------------------------------------------------------------------------------------------------- define_request_and_response_test
+/// Generate documentation for the types generated
+/// by the [`define_request_and_response`] macro.
+///
+/// See it for more info on inputs.
+macro_rules! define_request_and_response_doc_test {
+    // `/json_rpc` doc test.
+    (
+        // The ident of the `const` request/response.
+        $name:ident,
+        json_rpc
+    ) => {
+        concat!(
+            "```rust\n",
+            "use cuprate_test_utils::rpc::data::json::*;\n",
+            "use serde_json::{to_value, Value};\n",
+            "\n",
+            "let value = serde_json::from_str::<Value>(&",
+            stringify!($name),
+            ").unwrap();\n",
+            "let Value::Object(map) = value else {\n",
+            "    panic!();\n",
+            "};\n",
+            "\n",
+            r#"assert_eq!(map.get("jsonrpc").unwrap(), "2.0");"#,
+            "\n",
+            r#"map.get("id").unwrap();"#,
+            "\n\n",
+            r#"if map.get("method").is_some() {"#,
+            "\n",
+            r#"    return;"#,
+            "\n",
+            "}\n",
+            "\n",
+            r#"if map.get("result").is_none() {"#,
+            "\n",
+            r#"    map.get("error").unwrap();"#,
+            "\n",
+            "}\n",
+            "\n",
+            "```\n",
+        )
+    };
+
+    // Other JSON endpoint doc test.
+    (
+        $name:ident,
+        other
+    ) => {
+        concat!(
+            "```rust\n",
+            "use cuprate_test_utils::rpc::data::other::*;\n",
+            "use serde_json::{to_value, Value};\n",
+            "\n",
+            "let value = serde_json::from_str::<Value>(&",
+            stringify!($name),
+            ");\n",
+            "```\n",
+        )
+    };
+
+    // No doc test.
+    (
+        $name:ident,
+        $test:ident,
+    ) => {
+        ""
+    };
+}
+pub(super) use define_request_and_response_doc_test;

test-utils/src/rpc/data/mod.rs

@@ -0,0 +1,18 @@
+//! Monero RPC data.
+//!
+//! This module contains real `monerod` RPC requests/responses
+//! as `const` [`str`]s and byte arrays (binary).
+//!
+//! The strings include the JSON-RPC 2.0 portions of the JSON.
+//! - Tests exist within this crate that ensure the JSON is valid
+//! - Tests exist within Cuprate's `rpc/` crates that ensure these strings (de)serialize as valid types
+//!
+//! # Determinism
+//! Note that although both request/response data is defined,
+//! they aren't necessarily tied to each other, i.e. the request
+//! will not deterministically lead to the response.
+
+pub mod bin;
+pub mod json;
+mod macros;
+pub mod other;

test-utils/src/rpc/mod.rs

@@ -1,25 +1,6 @@
-//! Monero RPC client.
+//! Monero RPC data & client.
 //!
-//! This module is a client for Monero RPC that maps the types
+//! This module has a `monerod` RPC [`client`] and some real request/response [`data`].
-//! into the native types used by Cuprate found in `cuprate_types`.
-//!
-//! # Usage
-//! ```rust,ignore
-//! #[tokio::main]
-//! async fn main() {
-//!     // Create RPC client.
-//!     let rpc = HttpRpcClient::new(None).await;
-//!
-//!     // Collect 20 blocks.
-//!     let mut vec: Vec<VerifiedBlockInformation> = vec![];
-//!     for height in (3130269 - 20)..3130269 {
-//!         vec.push(rpc.get_verified_block_information(height).await);
-//!     }
-//! }
-//! ```
 
-mod client;
+pub mod client;
-pub use client::HttpRpcClient;
+pub mod data;
-
-mod constants;
-pub use constants::LOCALHOST_RPC_URL;

typos.toml

@@ -17,4 +17,5 @@ extend-ignore-identifiers-re = [
 extend-exclude = [
 	"/misc/gpg_keys/",
 	"cryptonight/",
+	"/test-utils/src/rpc/data/json.rs",
 ]