rummy 0.2.0

a crate for the card game Rummy
Documentation 
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#[cfg(test)]
mod tests {
    use crate::cards::{
        card::Card,
        deck::DeckConfig,
        meld::{Meldable, Set},
        suit_rank::{Rank, Suit},
    };
    use std::collections::HashSet;
    use std::sync::Arc;

    #[test]
    fn invalid_set_less_than_3_cards() {
        let cfg = Arc::new(DeckConfig::new());
        let mut cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Spades,
                deck_config: cfg.clone(),
            },
        ];
        let indices = vec![0, 1];
        assert!(Set::new(&mut cards, &indices).is_err());
    }

    #[test]
    fn invalid_set_different_ranks() {
        let cfg = Arc::new(DeckConfig::new());
        let mut cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Spades,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Two,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
        ];
        let indices = vec![0, 1, 2];
        assert!(Set::new(&mut cards, &indices).is_err());
    }

    #[test]
    fn invalid_set_invalid_indices() {
        let cfg = Arc::new(DeckConfig::new());
        let mut cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            },
        ];
        let indices = vec![0, 1, 2, 3]; // 3 does not exist as index
        assert!(Set::new(&mut cards, &indices).is_err());
    }

    #[test]
    fn valid_set() {
        let cfg = Arc::new(DeckConfig::new());
        let mut cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            },
        ];
        let backup_cards = cards.clone();
        let indices = vec![0, 1, 2];
        let set = Set::new(&mut cards, &indices);

        assert!(cards.is_empty());
        assert!(set.is_ok());
        assert!(set.unwrap().cards() == &backup_cards);
    }

    #[test]
    fn valid_set_wrong_order_indices() {
        let cfg = Arc::new(DeckConfig::new());
        let mut cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Spades,
                deck_config: cfg.clone(),
            },
        ];
        let backup_cards = cards.clone();
        let backup_cards_set = backup_cards.iter().collect();
        let indices = vec![2, 0, 3, 1]; // in the wrong order
        let set = Set::new(&mut cards, &indices);

        assert!(cards.is_empty());
        assert!(set.is_ok());
        assert!(set.unwrap().cards().iter().collect::<HashSet<_>>() == backup_cards_set);
        // since order is different from in `cards`, just check existence of elements
    }

    #[test]
    fn valid_set_wildcard() {
        let mut cfg = DeckConfig::new();
        cfg.wildcard_rank = Some(Rank::Five);
        let cfg = Arc::new(cfg);
        let mut cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Five,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            }, // the wildcard
        ];
        let backup_cards = cards.clone();
        let indices = vec![0, 1, 2];
        let set = Set::new(&mut cards, &indices);

        assert!(set.is_ok());
        assert!(cards.is_empty());
        assert!(set.unwrap().cards() == &backup_cards);
    }

    #[test]
    fn invalid_layoff_set() {
        let cfg = Arc::new(DeckConfig::new());
        let cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            },
        ];
        let indices = vec![0, 1, 2];
        let mut set = Set::new(&mut cards.clone(), &indices).unwrap();
        let mut layoff_card = vec![Card {
            rank: Rank::Two,
            suit: Suit::Clubs,
            deck_config: cfg.clone(),
        }];

        assert!(set.layoff_card(&mut layoff_card, 0).is_err());
    }

    #[test]
    fn valid_layoff_set() {
        let cfg = Arc::new(DeckConfig::new());
        let cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            },
        ];
        let indices = vec![0, 1, 2];
        let mut set = Set::new(&mut cards.clone(), &indices).unwrap();
        let mut layoff_card = vec![Card {
            rank: Rank::Ace,
            suit: Suit::Spades,
            deck_config: cfg.clone(),
        }];

        assert!(set.layoff_card(&mut layoff_card, 0).is_ok());
        assert!(layoff_card.is_empty());
        assert!(
            set.cards()
                == &vec![
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Clubs,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Diamonds,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Hearts,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Spades,
                        deck_config: cfg.clone()
                    }
                ]
        );
    }

    #[test]
    fn valid_layoff_add_wildcard_set() {
        let mut cfg = DeckConfig::new();
        cfg.wildcard_rank = Some(Rank::Joker);
        let cfg = Arc::new(cfg);

        let cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            },
        ];
        let indices = vec![0, 1, 2];
        let mut set = Set::new(&mut cards.clone(), &indices).unwrap();
        let mut card = vec![Card {
            rank: Rank::Joker,
            suit: Suit::Joker,
            deck_config: cfg.clone(),
        }];

        assert!(set.layoff_card(&mut card, 0).is_ok());
        assert!(card.is_empty());
        assert!(
            set.cards()
                == &vec![
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Clubs,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Diamonds,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Hearts,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Joker,
                        suit: Suit::Joker,
                        deck_config: cfg.clone()
                    }
                ]
        );
    }

    #[test]
    fn valid_layoff_replace_wildcard_set() {
        let mut cfg = DeckConfig::new();
        cfg.wildcard_rank = Some(Rank::Joker);
        let cfg = Arc::new(cfg);

        let cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Joker,
                suit: Suit::Joker,
                deck_config: cfg.clone(),
            }, // replace this in the layoff
        ];
        let indices = vec![0, 1, 2, 3];
        let mut set = Set::new(&mut cards.clone(), &indices).unwrap();
        let mut card = vec![Card {
            rank: Rank::Ace,
            suit: Suit::Spades,
            deck_config: cfg.clone(),
        }];

        assert!(set.layoff_card(&mut card, 0).is_ok());
        assert!(
            card == vec![Card {
                rank: Rank::Joker,
                suit: Suit::Joker,
                deck_config: cfg.clone()
            }]
        );
        assert!(
            set.cards()
                == &vec![
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Clubs,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Diamonds,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Hearts,
                        deck_config: cfg.clone()
                    },
                    Card {
                        rank: Rank::Ace,
                        suit: Suit::Spades,
                        deck_config: cfg.clone()
                    }
                ]
        );
    }

    #[test]
    fn valid_layoff_same_cards_set() {
        let mut cfg = DeckConfig::new();
        cfg.wildcard_rank = Some(Rank::Joker);
        let cfg = Arc::new(cfg);

        let cards = vec![
            Card {
                rank: Rank::Ace,
                suit: Suit::Clubs,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Diamonds,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Hearts,
                deck_config: cfg.clone(),
            },
            Card {
                rank: Rank::Ace,
                suit: Suit::Spades,
                deck_config: cfg.clone(),
            },
        ];
        let mut layoff_cards = cards.clone();
        let indices = vec![0, 1, 2, 3];
        let mut set = Set::new(&mut cards.clone(), &indices).unwrap();
        let mut set_cards = cards.clone();
        set_cards.append(&mut cards.clone());

        assert!(set.layoff_card(&mut layoff_cards, 0).is_ok()); // should be ok to layoff the same card (ie, if using >1 pack in the deck)
        assert!(set.layoff_card(&mut layoff_cards, 0).is_ok());
        assert!(set.layoff_card(&mut layoff_cards, 0).is_ok());
        assert!(set.layoff_card(&mut layoff_cards, 0).is_ok());
        assert!(layoff_cards.is_empty());
        assert!(set.cards() == &set_cards);
    }
}