9ac713bbe9
Also guarantees one building per district and repairs interiors split by crossing partitions, both found by the new validation. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
65 lines
1.5 KiB
Rust
65 lines
1.5 KiB
Rust
//! Determinism and invariant sweeps over many seeds.
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use citygen::*;
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fn sweep(preset: SizePreset, seeds: std::ops::Range<u64>) {
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for seed in seeds {
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let p = GenParams {
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seed,
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size: preset,
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water: match seed % 3 {
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0 => WaterMode::Bay,
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1 => WaterMode::River,
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_ => WaterMode::None,
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},
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districts: 4 + (seed % 9) as u8,
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..Default::default()
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};
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if p.validate().is_err() {
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continue;
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}
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let a = Generator::run(p.clone()).unwrap_or_else(|e| panic!("seed {seed}: {e}"));
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let b = Generator::run(p).unwrap();
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assert_eq!(
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postcard::to_allocvec(&a).unwrap(),
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postcard::to_allocvec(&b).unwrap(),
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"seed {seed} not deterministic"
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);
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a.validate()
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.unwrap_or_else(|v| panic!("seed {seed}: {v:?}"));
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}
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}
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#[test]
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fn small_seeds() {
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sweep(SizePreset::Small, 0..50);
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}
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#[test]
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fn medium_seeds() {
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sweep(SizePreset::Medium, 1000..1010);
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}
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#[test]
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fn large_seeds() {
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sweep(SizePreset::Large, 2000..2003);
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}
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#[test]
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#[ignore]
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fn extended_seeds() {
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sweep(SizePreset::Small, 100..250);
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sweep(SizePreset::Medium, 3000..3050);
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}
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#[test]
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fn medium_generates_under_two_seconds() {
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let t = std::time::Instant::now();
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Generator::run(GenParams {
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seed: 77,
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..Default::default()
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})
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.unwrap();
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assert!(t.elapsed().as_secs_f32() < 2.0, "took {:?}", t.elapsed());
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}
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