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use super::*;
use super::super::tests::TestGraph;
#[test]
fn diamond() {
let graph = TestGraph::new(0, &[(0, 1), (0, 2), (1, 3), (2, 3)]);
let dominators = dominators(&graph);
let immediate_dominators = &dominators.immediate_dominators;
assert_eq!(immediate_dominators[0], Some(0));
assert_eq!(immediate_dominators[1], Some(0));
assert_eq!(immediate_dominators[2], Some(0));
assert_eq!(immediate_dominators[3], Some(0));
}
#[test]
fn paper() {
// example from the paper:
let graph = TestGraph::new(
6,
&[(6, 5), (6, 4), (5, 1), (4, 2), (4, 3), (1, 2), (2, 3), (3, 2), (2, 1)],
);
let dominators = dominators(&graph);
let immediate_dominators = &dominators.immediate_dominators;
assert_eq!(immediate_dominators[0], None); // <-- note that 0 is not in graph
assert_eq!(immediate_dominators[1], Some(6));
assert_eq!(immediate_dominators[2], Some(6));
assert_eq!(immediate_dominators[3], Some(6));
assert_eq!(immediate_dominators[4], Some(6));
assert_eq!(immediate_dominators[5], Some(6));
assert_eq!(immediate_dominators[6], Some(6));
}
#[test]
fn paper_slt() {
// example from the paper:
let graph = TestGraph::new(
1,
&[(1, 2), (1, 3), (2, 3), (2, 7), (3, 4), (3, 6), (4, 5), (5, 4), (6, 7), (7, 8), (8, 5)],
);
dominators(&graph);
}
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