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Pin GetTier: it hides an over-specced part, and its tolerance and upgrade step at the shipped thresholds

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Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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Meta Vens 2026-10-18 11:06:45 +02:00
commit 8cc7f1bc85
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73
tests/Aetheria.Shared.Tests/LoadoutTests.cs
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@ -551,6 +551,79 @@ public sealed class LoadoutTests : IDisposable
Assert.Equal(.2f, items.GetTier(secondInstance).tier.Quality, 3);
}
// The shipped tiers (Settings.asset) band a lot's effective quality, so the tier hides a sleeper whose part sits above
// its assembly (price-follows-effective-quality). Assembly at the fourth threshold, parts at the top and bottom
// thresholds: the capped mean falls in the second band, where the uncapped part mean reaches the third, the assembly
// alone the fourth and the best part the fifth.
[Fact]
public void GetTierHidesAnOverSpecPart()
{
using var cache = Open();
var settings = AuthoredSettings.Load(RunStartTests.FindRepoRoot()).Read<GameplaySettings>("GameplaySettings");
var tiers = settings.Tiers;
var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
var lamp = cache.GetByName<GearData>("Lamp");
var assembly = tiers[3].Quality;
var sleeperLot = items.Lots.Add(new Lot
{
Design = cache.RefOf<ItemData>(lamp),
Origin = new Attributed(),
Quality = assembly,
Roles = new List<RoleFill>
{
new RoleFill { Role = "lens", Quality = tiers[4].Quality },
new RoleFill { Role = "frame", Quality = tiers[0].Quality }
}
});
var cappedMean = (assembly + tiers[0].Quality) / 2f;
var rolelessLot = items.Lots.Add(new Lot { Design = cache.RefOf<ItemData>(lamp), Origin = new Attributed(), Quality = cappedMean, Roles = new List<RoleFill>() });
var sleeper = items.GetTier((CraftedItemInstance) items.CreateInstance(sleeperLot));
var roleless = items.GetTier((CraftedItemInstance) items.CreateInstance(rolelessLot));
Assert.Equal(tiers[1].Name, sleeper.tier.Name);
Assert.Equal(roleless.tier.Name, sleeper.tier.Name);
Assert.Equal(roleless.upgrades, sleeper.upgrades);
}
// The tolerance is open: a quality a full .001 under a threshold stays in the tier below, one inside it reaches the
// threshold's tier. Upgrades count steps of .0499 above the tier's threshold. Every value comes from the shipped tiers.
[Theory]
[InlineData(1)]
[InlineData(2)]
[InlineData(3)]
[InlineData(4)]
public void GetTierToleranceIsOpenAtEveryShippedThreshold(int index)
{
using var cache = Open();
var settings = AuthoredSettings.Load(RunStartTests.FindRepoRoot()).Read<GameplaySettings>("GameplaySettings");
var tiers = settings.Tiers;
Assert.True(tiers.Length > index, "premise: the shipped asset carries this tier");
var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
var lamp = cache.GetByName<GearData>("Lamp");
string TierAt(float quality) => items.GetTier((CraftedItemInstance) items.CreateInstance(items.Lots.Add(
new Lot { Design = cache.RefOf<ItemData>(lamp), Origin = new Attributed(), Quality = quality, Roles = new List<RoleFill>() }))).tier.Name;
var threshold = tiers[index].Quality;
Assert.Equal(tiers[index - 1].Name, TierAt(threshold - .001f));
Assert.Equal(tiers[index].Name, TierAt(threshold - .0005f));
Assert.Equal(tiers[index].Name, TierAt(threshold));
}
[Fact]
public void GetTierUpgradesAreStepsOfFortyNineNinetyNinePerTenThousand()
{
using var cache = Open();
var settings = AuthoredSettings.Load(RunStartTests.FindRepoRoot()).Read<GameplaySettings>("GameplaySettings");
var items = new ItemManager(cache, new ProvenanceLedger(), settings, _ => { });
var lamp = cache.GetByName<GearData>("Lamp");
// Two steps and a hair above the lowest threshold: the step width decides whether that counts as two or one.
var quality = settings.Tiers[0].Quality + 2 * .0499f + .0001f;
var lot = items.Lots.Add(new Lot { Design = cache.RefOf<ItemData>(lamp), Origin = new Attributed(), Quality = quality, Roles = new List<RoleFill>() });
var result = items.GetTier((CraftedItemInstance) items.CreateInstance(lot));
Assert.Equal(settings.Tiers[0].Name, result.tier.Name);
Assert.Equal(2, result.upgrades);
}
// S7 (docs/stats-and-power-cut.md Cut 1 findings): a Quality term must raise the lot's quality to its own
// declared Exponent, not always to 1. StatsReadTheLot uses Exponent = 1 throughout, which cannot distinguish
// "read the term's exponent" from "always use 1" -- pow(x, 1) == x either way. Exponent = 2 here can: a