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eureka-state tests: initialize must advertise the tools capability

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cargo-mutants on the Cut 13b diff: replacing get_info with Default::default()
survived, and a client that does not see a tools capability does not list tools.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
This commit is contained in:
Meta Vens 2026-09-30 01:41:14 +02:00
commit 120e0a6e5a
1 changed files with 11 additions and 1 deletions
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12
crates/eureka-state/tests/mcp.rs
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@ -24,6 +24,8 @@ struct Mcp {
stdin: ChildStdin,
lines: Receiver<String>,
next: u64,
/// The server's answer to `initialize`.
init: Value,
}
impl Drop for Mcp {
@ -53,12 +55,13 @@ impl Mcp {
let _ = sender.send(line);
}
});
let mut mcp = Self { child, stdin, lines, next: 1 };
let mut mcp = Self { child, stdin, lines, next: 1, init: Value::Null };
let init = mcp.rpc(
"initialize",
json!({ "protocolVersion": "2025-06-18", "capabilities": {}, "clientInfo": { "name": "test", "version": "0" } }),
);
assert!(init.get("result").is_some(), "{init}");
mcp.init = init["result"].clone();
mcp.send(json!({ "jsonrpc": "2.0", "method": "notifications/initialized" }));
mcp
}
@ -370,3 +373,10 @@ fn absent() -> Value {
serde_json::to_value(PipelineRef { kind: PipelineKind::CutSpec, id: Short("eureka-state:cut_spec:cut-99.r1".into()) })
.unwrap()
}
/// A client only lists tools from a server that says it has them.
#[test]
fn initialize_advertises_tools() {
let mcp = Mcp::at(INSTANCE, closed_port());
assert!(mcp.init["capabilities"]["tools"].is_object(), "{}", mcp.init);
}