use graphfind_rs::graph::VizDotGraph;
#[cfg(feature = "svg")]
use test_dir::{DirBuilder, TestDir};

pub mod common;
use common::make_sample_graph_variant;

/// Test Case for Printing to GraphViz dot format:
/// Create the String representation of a Graph, then compare it to the created String.
#[test]
fn test_petgraph_print() {
    let graph = make_sample_graph_variant();
    // Printed String we get
    let dot_print = r#graph.print();
    println!("{}", &dot_print);
    // Result String we expect
    let actual_print = r#"digraph {
    0 [ label = "Person { name: \"tobias\", age: 99, role: Student { matrical_number: 900000 } }" ]
    1 [ label = "Person { name: \"stefan\", age: 9, role: Student { matrical_number: 89000 } }" ]
    2 [ label = "Person { name: \"horst\", age: 55, role: Student { matrical_number: 823340 } }" ]
    3 [ label = "Person { name: \"bettina\", age: 36, role: Professor { faculty: \"Faculty of Software Engineering and Programming Languages\" } }" ]
    0 -> 2 [ label = "FriendOf { since_year: 2020 }" ]
    2 -> 3 [ label = "FriendOf { since_year: 2010 }" ]
    3 -> 2 [ label = "FriendOf { since_year: 2010 }" ]
    1 -> 3 [ label = "FriendOf { since_year: 2018 }" ]
}
"#;
    assert_eq!(actual_print, dot_print);
}

/// Tests that graphviz can generate a .svg file for our sample graph.
#[cfg(feature = "svg")]
#[test]
fn test_petgraph_svg_print() {
    let dir = TestDir::temp();
    let graph = make_sample_graph_variant();
    let graph_svg_test_res = graph.print_to_svg(dir.path("persons").to_str().unwrap());
    assert!(graph_svg_test_res.is_ok());
}