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// Copyright (c) 2022-2023 Yegor Bugayenko
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

use crate::Sodg;

impl Clone for Sodg {
    /// Make a clone of the graph.
    fn clone(&self) -> Self {
        Self {
            vertices: self.vertices.clone(),
            next_v: self.next_v,
            alerts: vec![],
            alerts_active: false,
            #[cfg(feature = "sober")]
            finds: self.finds.clone(),
        }
    }
}

#[cfg(test)]
use anyhow::Result;

#[test]
fn makes_a_clone() -> Result<()> {
    let mut g = Sodg::empty();
    g.add(0)?;
    g.add(1)?;
    g.bind(0, 1, "foo")?;
    let c = g.clone();
    assert_eq!(2, c.vertices.len());
    Ok(())
}