use super::{Directory, fixture};
use dever::compiler::{build, project::Project};

#[test]
fn async_stream_consumers_keep_values_and_close_all_aliases() {
    let directory = Directory::new();
    let project = Project::load(&fixture().with_file_name("async-stream.dever")).unwrap();
    let program = project.check().unwrap();
    for (entry, expected) in [
        ("verify", "true\n"),
        ("cleanup", "true\n"),
        ("creation", "AsyncStream\n"),
    ] {
        let binary =
            build::build(&program, &project.sources, entry, &directory.0.join(entry)).unwrap();
        let result = std::process::Command::new(binary).output().unwrap();
        assert!(
            result.status.success(),
            "{}",
            String::from_utf8_lossy(&result.stderr)
        );
        assert_eq!(result.stdout, expected.as_bytes());
    }
}

#[test]
fn invalid_tick_period_keeps_its_official_library_location() {
    let directory = Directory::new();
    let project = Project::load(&fixture().with_file_name("async-stream.dever")).unwrap();
    let program = project.check().unwrap();
    let binary = build::build(
        &program,
        &project.sources,
        "invalid",
        &directory.0.join("invalid"),
    )
    .unwrap();
    let result = std::process::Command::new(binary).output().unwrap();
    assert!(!result.status.success());
    let error = String::from_utf8(result.stderr).unwrap();
    assert!(error.contains("tick period must be positive"), "{error}");
    let source = project
        .sources
        .iter()
        .find(|source| source.path.ends_with("lib/dever/task.dever"))
        .unwrap();
    let (line, column) =
        source.position(source.text.find("dever.system.taskTicks(millis)").unwrap());
    assert!(
        error.contains(&format!("{}:{line}:{column}:", source.path.display())),
        "{error}"
    );
}