use anyhow::Result;
use thinp::version::tools_version;

mod common;
use common::test_dir::*;
use common::*;

//------------------------------------------

#[test]
fn accepts_v() -> Result<()> {
    let stdout = thin_rmap!("-V").read()?;
    assert!(stdout.contains(tools_version()));
    Ok(())
}

#[test]
fn accepts_version() -> Result<()> {
    let stdout = thin_rmap!("--version").read()?;
    assert!(stdout.contains(tools_version()));
    Ok(())
}

const USAGE: &str = "Usage: thin_rmap [options] {device|file}\nOptions:\n  {-h|--help}\n  {-V|--version}\n  {--region <block range>}*\nWhere:\n  <block range> is of the form <begin>..<one-past-the-end>\n  for example 5..45 denotes blocks 5 to 44 inclusive, but not block 45";

#[test]
fn accepts_h() -> Result<()> {
    let stdout = thin_rmap!("-h").read()?;
    assert_eq!(stdout, USAGE);
    Ok(())
}

#[test]
fn accepts_help() -> Result<()> {
    let stdout = thin_rmap!("--help").read()?;
    assert_eq!(stdout, USAGE);
    Ok(())
}

#[test]
fn rejects_bad_option() -> Result<()> {
    let stderr = run_fail(thin_rmap!("--hedgehogs-only"))?;
    assert!(stderr.contains("unrecognized option \'--hedgehogs-only\'"));
    Ok(())
}

#[test]
fn valid_region_format_should_pass() -> Result<()> {
    let mut td = TestDir::new()?;
    let md = mk_valid_md(&mut td)?;
    thin_rmap!("--region", "23..7890", &md).run()?;
    Ok(())
}

#[test]
fn invalid_regions_should_fail() -> Result<()> {
    let invalid_regions = [
        "23,7890",
        "23..six",
        "found..7890",
        "89..88",
        "89..89",
        "89..",
        "",
        "89...99",
    ];
    for r in &invalid_regions {
        let mut td = TestDir::new()?;
        let md = mk_valid_md(&mut td)?;
        run_fail(thin_rmap!(r, &md))?;
    }
    Ok(())
}

#[test]
fn multiple_regions_should_pass() -> Result<()> {
    let mut td = TestDir::new()?;
    let md = mk_valid_md(&mut td)?;
    thin_rmap!("--region", "1..23", "--region", "45..78", &md).run()?;
    Ok(())
}

#[test]
fn junk_input() -> Result<()> {
    let mut td = TestDir::new()?;
    let xml = mk_valid_xml(&mut td)?;
    run_fail(thin_rmap!("--region", "0..-1", &xml))?;
    Ok(())
}

//------------------------------------------