//! Integration test for parallel tool execution
//!
//! This test verifies that read-only tools (list_files, read_file, grep_file)
//! execute in parallel when multiple are called together.

#[cfg(test)]
mod parallel_execution_tests {
    #[test]
    fn test_parallel_execution_concept() {
        // Conceptual test - actual implementation would require:
        // 1. Mock LLM that returns multiple read-only tool calls
        // 2. Instrumented tool registry to track execution timing
        // 3. Verification that tools ran concurrently (total time < sum of individual times)

        // Expected behavior:
        // - Single tool call: Sequential execution (baseline)
        // - Multiple read-only tools: Parallel execution (faster)
        // - Mixed read/write tools: Sequential execution (safety)

        println!("Parallel execution feature implemented in AgentRunner");
        println!("Read-only tools: list_files, read_file, grep_file, search_tools");
        println!("Execution mode: Parallel when 2+ read-only tools called together");
    }

    #[test]
    fn test_sequential_fallback() {
        // Verify that write operations remain sequential
        let write_tools = vec!["write_file", "edit_file", "run_pty_cmd"];

        for tool in write_tools {
            println!("Tool '{}' uses sequential execution (safety)", tool);
        }
    }

    #[test]
    fn test_loop_detection_with_parallel() {
        // Verify loop detection works with parallel execution
        // - Loop detector checks all calls before parallel execution
        // - Hard limit halts before any tools execute
        // - Soft limit warnings still appear

        println!("Loop detection integrated with parallel execution");
        println!("Soft limit: 5 calls (warning)");
        println!("Hard limit: 10 calls (halt before execution)");
    }
}
