Gabriel Kaszewski
313a5315b1
three bug-encoding invariants, one red/green cycle each: - Coins.TrySubtract fails instead of clamping - LevelTime rejects zero (continued-run zero best-times) - SkillLevel has no zero (unowned is absence, not Level=1) plan: drop signed NetCoins; add Attempt outcome as idempotency guard
18 lines
546 B
C#
18 lines
546 B
C#
namespace Mr.BrickAdventures.Progression.Tests;
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public class CoinsTests
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{
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[Fact]
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public void Subtracting_more_than_held_fails_and_leaves_the_amount_untouched()
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{
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var held = Coins.Of(10);
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var succeeded = held.TrySubtract(Coins.Of(30), out var remaining);
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Assert.False(succeeded);
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// Not clamped to zero. A caller that ignores the bool sees coins un-spent,
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// which is the safe outcome; clamping would silently consume what wasn't there.
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Assert.Equal(Coins.Of(10), remaining);
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}
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}
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