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//! Check whether a digraph is simple.
//!
//! A simple digraph has no self-loops or parallel arcs.
//!
//! # Examples
//!
//! ```
//! use graaf::{
//! AddArc,
//! AdjacencyList,
//! Empty,
//! IsSimple,
//! };
//!
//! let mut digraph = AdjacencyList::empty(3);
//!
//! digraph.add_arc(0, 1);
//! digraph.add_arc(1, 2);
//! digraph.add_arc(2, 0);
//!
//! assert!(digraph.is_simple());
//! ```
/// Check whether a digraph is simple.
pub trait IsSimple {
/// Check whether the digraph is simple.
///
/// # Examples
///
/// ```
/// use graaf::{
/// AddArc,
/// AdjacencyList,
/// Empty,
/// IsSimple,
/// };
///
/// let mut digraph = AdjacencyList::empty(3);
///
/// digraph.add_arc(0, 1);
/// digraph.add_arc(0, 2);
/// digraph.add_arc(1, 2);
///
/// assert!(digraph.is_simple());
/// ```
#[must_use]
fn is_simple(&self) -> bool;
}
/// `IsSimple` tests
#[macro_export]
macro_rules! test_is_simple {
($fixture:path) => {
use $fixture::{
bang_jensen_34,
bang_jensen_94,
bang_jensen_196,
kattis_builddeps,
kattis_cantinaofbabel_1,
kattis_cantinaofbabel_2,
kattis_escapewallmaria_1,
kattis_escapewallmaria_2,
kattis_escapewallmaria_3,
};
#[test]
fn is_simple_bang_jensen_196() {
assert!(bang_jensen_196().is_simple());
}
#[test]
fn is_simple_bang_jensen_34() {
assert!(bang_jensen_34().is_simple());
}
#[test]
fn is_simple_bang_jensen_94() {
assert!(bang_jensen_94().is_simple());
}
#[test]
fn is_simple_kattis_builddeps() {
assert!(kattis_builddeps().is_simple());
}
#[test]
fn is_simple_kattis_cantinaofbabel_1() {
assert!(kattis_cantinaofbabel_1().is_simple());
}
#[test]
fn is_simple_kattis_cantinaofbabel_2() {
assert!(kattis_cantinaofbabel_2().is_simple());
}
#[test]
fn is_simple_kattis_escapewallmaria_1() {
assert!(kattis_escapewallmaria_1().is_simple());
}
#[test]
fn is_simple_kattis_escapewallmaria_2() {
assert!(kattis_escapewallmaria_2().is_simple());
}
#[test]
fn is_simple_kattis_escapewallmaria_3() {
assert!(kattis_escapewallmaria_3().is_simple());
}
};
}