288f99653e
Expose typed accessors for the per-request protocol version, client info, client capabilities, and log level entries carried in _meta without making those fields required for older peers. Fixes #869
73 lines
2.6 KiB
Rust
73 lines
2.6 KiB
Rust
#![allow(deprecated)]
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use rmcp::model::{ClientCapabilities, Implementation, LoggingLevel, Meta, ProtocolVersion};
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use serde_json::json;
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const META_KEY_PROTOCOL_VERSION: &str = "io.modelcontextprotocol/protocolVersion";
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const META_KEY_CLIENT_INFO: &str = "io.modelcontextprotocol/clientInfo";
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const META_KEY_CLIENT_CAPABILITIES: &str = "io.modelcontextprotocol/clientCapabilities";
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const META_KEY_LOG_LEVEL: &str = "io.modelcontextprotocol/logLevel";
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#[test]
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fn meta_setters_store_sep_2575_values() {
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let mut meta = Meta::new();
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meta.set_protocol_version(ProtocolVersion::V_2026_07_28);
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meta.set_client_info(Implementation::new("test-client", "1.0.0"));
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meta.set_client_capabilities(ClientCapabilities::default());
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meta.set_log_level(LoggingLevel::Warning);
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assert_eq!(
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meta.get(META_KEY_PROTOCOL_VERSION),
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Some(&json!("2026-07-28"))
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);
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assert_eq!(
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meta.get(META_KEY_CLIENT_INFO),
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Some(&json!({ "name": "test-client", "version": "1.0.0" }))
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);
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assert_eq!(meta.get(META_KEY_CLIENT_CAPABILITIES), Some(&json!({})));
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assert_eq!(meta.get(META_KEY_LOG_LEVEL), Some(&json!("warning")));
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}
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#[test]
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fn meta_accessors_decode_wire_values() {
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let meta: Meta = serde_json::from_value(json!({
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"progressToken": "progress-1",
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"io.modelcontextprotocol/protocolVersion": "2026-07-28",
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"io.modelcontextprotocol/clientInfo": {
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"name": "wire-client",
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"version": "9.0.0"
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},
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"io.modelcontextprotocol/clientCapabilities": {
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"sampling": {}
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},
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"io.modelcontextprotocol/logLevel": "error"
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}))
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.unwrap();
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assert_eq!(meta.protocol_version(), Some(ProtocolVersion::V_2026_07_28));
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assert_eq!(
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meta.client_info(),
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Some(Implementation::new("wire-client", "9.0.0"))
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);
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assert!(
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meta.client_capabilities()
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.is_some_and(|capabilities| capabilities.sampling.is_some())
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);
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assert_eq!(meta.log_level(), Some(LoggingLevel::Error));
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}
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#[test]
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fn meta_accessors_ignore_missing_or_malformed_values() {
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let meta: Meta = serde_json::from_value(json!({
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"io.modelcontextprotocol/protocolVersion": 20260728,
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"io.modelcontextprotocol/clientInfo": "not an implementation",
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"io.modelcontextprotocol/clientCapabilities": "not capabilities",
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"io.modelcontextprotocol/logLevel": "loud"
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}))
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.unwrap();
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assert_eq!(meta.protocol_version(), None);
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assert_eq!(meta.client_info(), None);
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assert_eq!(meta.client_capabilities(), None);
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assert_eq!(meta.log_level(), None);
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}
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