zag-agent 0.12.4

Core library for zag — a unified interface for AI coding agents
Documentation 
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use super::*;
use crate::providers::claude::Claude;
use crate::providers::codex::Codex;
use crate::providers::copilot::Copilot;
use crate::providers::gemini::Gemini;
use crate::providers::ollama::Ollama;

#[test]
fn test_model_size_from_str() {
    assert_eq!("small".parse::<ModelSize>(), Ok(ModelSize::Small));
    assert_eq!("s".parse::<ModelSize>(), Ok(ModelSize::Small));
    assert_eq!("SMALL".parse::<ModelSize>(), Ok(ModelSize::Small));
    assert_eq!("medium".parse::<ModelSize>(), Ok(ModelSize::Medium));
    assert_eq!("m".parse::<ModelSize>(), Ok(ModelSize::Medium));
    assert_eq!("default".parse::<ModelSize>(), Ok(ModelSize::Medium));
    assert_eq!("large".parse::<ModelSize>(), Ok(ModelSize::Large));
    assert_eq!("l".parse::<ModelSize>(), Ok(ModelSize::Large));
    assert_eq!("max".parse::<ModelSize>(), Ok(ModelSize::Large));
    assert_eq!("opus".parse::<ModelSize>(), Err(()));
    assert_eq!("gpt-5".parse::<ModelSize>(), Err(()));
    assert_eq!("".parse::<ModelSize>(), Err(()));
}

#[test]
fn test_claude_resolve_model() {
    assert_eq!(Claude::resolve_model("small"), "haiku");
    assert_eq!(Claude::resolve_model("medium"), "sonnet");
    assert_eq!(Claude::resolve_model("large"), "default");
    assert_eq!(Claude::resolve_model("sonnet"), "sonnet"); // passthrough
}

#[test]
fn test_codex_resolve_model() {
    assert_eq!(Codex::resolve_model("small"), "gpt-5.4-mini");
    assert_eq!(Codex::resolve_model("medium"), "gpt-5.3-codex");
    assert_eq!(Codex::resolve_model("large"), "gpt-5.4");
    assert_eq!(Codex::resolve_model("gpt-5.2"), "gpt-5.2"); // passthrough
}

#[test]
fn test_gemini_resolve_model() {
    assert_eq!(
        Gemini::resolve_model("small"),
        "gemini-3.1-flash-lite-preview"
    );
    assert_eq!(Gemini::resolve_model("medium"), "gemini-2.5-flash");
    assert_eq!(Gemini::resolve_model("large"), "gemini-3.1-pro-preview");
    assert_eq!(Gemini::resolve_model("auto"), "auto"); // passthrough
}

#[test]
fn test_copilot_resolve_model() {
    assert_eq!(Copilot::resolve_model("small"), "claude-haiku-4.5");
    assert_eq!(Copilot::resolve_model("medium"), "claude-sonnet-4.6");
    assert_eq!(Copilot::resolve_model("large"), "claude-opus-4.6");
    assert_eq!(Copilot::resolve_model("gpt-5"), "gpt-5"); // passthrough
}

#[test]
fn test_short_aliases() {
    assert_eq!(Claude::resolve_model("s"), "haiku");
    assert_eq!(Claude::resolve_model("m"), "sonnet");
    assert_eq!(Claude::resolve_model("l"), "default");
    assert_eq!(Codex::resolve_model("max"), "gpt-5.4");
}

#[test]
fn test_validate_model_valid() {
    assert!(Claude::validate_model("sonnet", "Claude").is_ok());
    assert!(Claude::validate_model("opus", "Claude").is_ok());
    assert!(Claude::validate_model("haiku", "Claude").is_ok());
}

#[test]
fn test_validate_model_invalid() {
    let result = Claude::validate_model("gpt-5", "Claude");
    assert!(result.is_err());
    let err = result.unwrap_err().to_string();
    assert!(err.contains("Invalid model"));
    assert!(err.contains("Claude"));
    // Error should list size mappings
    assert!(err.contains("small"));
    assert!(err.contains("medium"));
    assert!(err.contains("large"));
}

#[test]
fn test_validate_model_all_agents() {
    assert!(Codex::validate_model("gpt-5.4", "Codex").is_ok());
    assert!(Codex::validate_model("invalid", "Codex").is_err());

    assert!(Gemini::validate_model("auto", "Gemini").is_ok());
    assert!(Gemini::validate_model("invalid", "Gemini").is_err());

    assert!(Copilot::validate_model("claude-sonnet-4.6", "Copilot").is_ok());
    assert!(Copilot::validate_model("invalid", "Copilot").is_err());
}

#[test]
fn test_default_models() {
    assert_eq!(Claude::default_model(), "default");
    assert_eq!(Codex::default_model(), "gpt-5.4");
    assert_eq!(Gemini::default_model(), "auto");
    assert_eq!(Copilot::default_model(), "claude-sonnet-4.6");
}

#[test]
fn test_available_models() {
    assert!(Claude::available_models().contains(&"sonnet"));
    assert!(Claude::available_models().contains(&"opus"));
    assert!(Claude::available_models().contains(&"haiku"));

    assert!(Codex::available_models().contains(&"gpt-5.4"));
    assert!(Gemini::available_models().contains(&"auto"));
    assert!(Copilot::available_models().contains(&"claude-sonnet-4.6"));
}

#[test]
fn test_ollama_validate_model() {
    // Ollama accepts any model name
    assert!(Ollama::validate_model("anything", "Ollama").is_ok());
    assert!(Ollama::validate_model("", "Ollama").is_ok());
}

#[test]
fn test_ollama_default_model() {
    assert_eq!(Ollama::default_model(), "qwen3.5");
}

#[test]
fn test_ollama_available_models() {
    let models = Ollama::available_models();
    assert!(models.contains(&"9b"));
    assert!(models.contains(&"2b"));
    assert!(models.contains(&"35b"));
}