Solitaire Quest
17bbec054c
Implements PileType/Pile, MoveError (thiserror), Deck with seeded shuffle, deal_klondike layout, foundation/tableau placement rules, and Windows XP Standard scoring — 41 tests, clippy clean. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
37 lines
933 B
Rust
37 lines
933 B
Rust
use thiserror::Error;
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/// All reasons a game move can be rejected.
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#[derive(Debug, Clone, PartialEq, Eq, Error)]
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pub enum MoveError {
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#[error("invalid source pile")]
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InvalidSource,
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#[error("invalid destination pile")]
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InvalidDestination,
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#[error("source pile is empty")]
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EmptySource,
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#[error("move violates rules: {0}")]
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RuleViolation(String),
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#[error("undo stack is empty")]
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UndoStackEmpty,
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#[error("game is already won")]
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GameAlreadyWon,
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#[error("stock and waste are both empty")]
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StockEmpty,
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn rule_violation_includes_message() {
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let e = MoveError::RuleViolation("king only on empty".into());
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assert!(e.to_string().contains("king only on empty"));
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}
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#[test]
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fn undo_stack_empty_has_non_empty_message() {
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assert!(!MoveError::UndoStackEmpty.to_string().is_empty());
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}
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}
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