agent-os-client 0.2.0-rc.3

//! Regression repro for "software descriptors don't actually mount commands into the VM".
//!
//! A wasm-command software package (e.g. `@rivet-dev/agent-os-coreutils/wasm`) must be mounted at
//! `/__agentos/commands/{index}/` so the sidecar's `discover_command_guest_paths` can resolve guest
//! commands. Before the fix, `AgentOs::create` sent `ConfigureVm { mounts: Vec::new() }`, so the
//! command directory was never mounted and `exec("echo hello")` failed with
//! `command not found on native sidecar path: echo hello`.
//!
//! This suite self-gates: it skips (returns early) when the sidecar binary is not built or when the
//! coreutils wasm artifacts are absent, so it stays honest in unbuilt trees. When both prerequisites
//! are present it asserts the real contract: `echo hello` exits 0 with stdout `hello`.

mod common;

use agent_os_client::ExecOptions;

#[tokio::test]
async fn wasm_command_software_mounts_into_vm() {
    if !common::sidecar_available() {
        eprintln!("skipping wasm_command_software_mounts_into_vm: sidecar binary not built");
        return;
    }
    let Some(os) = common::new_vm_with_commands().await else {
        eprintln!("skipping wasm_command_software_mounts_into_vm: coreutils wasm artifacts absent");
        return;
    };

    // The TODO's exact verification: a mounted wasm command runs via `exec` and returns its output.
    // Before the mount fix this failed with "command not found"; before the exec command-line fix
    // the space made the whole string resolve as one command name.
    let result = os
        .exec("echo hello", ExecOptions::default())
        .await
        .expect("exec echo hello");
    assert_eq!(
        result.exit_code, 0,
        "echo should exit 0 (stderr: {:?})",
        result.stderr
    );
    assert_eq!(result.stdout.trim_end(), "hello", "echo stdout");
}