fixup serde feature

Cargo.lock

@@ -138,8 +138,10 @@ version = "0.3.0"
 dependencies = [
  "card_game",
  "rand",
+ "rmp-serde",
  "serde",
  "serde_derive",
+ "serde_json",
 ]
 
 [[package]]
@@ -158,9 +160,6 @@ dependencies = [
  "card_game",
  "klondike",
  "rand",
- "rmp-serde",
- "serde",
- "serde_json",
 ]
 
 [[package]]

klondike-cli/Cargo.toml

@@ -8,10 +8,5 @@ card_game.workspace = true
 klondike.workspace = true
 rand = { version = "0.10.1", default-features = false, features = ["thread_rng"] }
 
-[dev-dependencies]
-rmp-serde = "1.3.1"
-serde = { version = "1.0.228", default-features = false }
-serde_json = "1.0.149"
-
 [lints]
 workspace = true

klondike-cli/src/main.rs

@@ -4,9 +4,6 @@ use klondike::{
 	KlondikePile, KlondikePileStack, SkipCards, Tableau, TableauStack,
 };
 
-#[cfg(test)]
-mod test;
-
 use std::fmt::Display;
 struct Displayed<T>(T);
 

klondike/Cargo.toml

@@ -9,9 +9,14 @@ rand = { version = "0.10.1", default-features = false, features = ["std_rng"] }
 serde = { version = "1.0.228", default-features = false, optional = true }
 serde_derive = { version = "1.0.228", default-features = false, optional = true }
 
+[dev-dependencies]
+rmp-serde = "1.3.1"
+serde = { version = "1.0.228", default-features = false }
+serde_json = "1.0.149"
+
 [lints]
 workspace = true
 
 [features]
 default = ["serde"]
-serde = ["dep:serde", "dep:serde_derive"]
+serde = ["dep:serde", "dep:serde_derive", "card_game/serde"]

klondike/src/lib.rs

@@ -2,6 +2,9 @@ pub type Rng = rand::rngs::StdRng;
 
 use card_game::{Card, Game, Pile, Rank, Stack};
 
+#[cfg(test)]
+mod test;
+
 // test readme
 #[doc = include_str!("../README.md")]
 #[cfg(doctest)]

klondike/src/test.rs

@@ -1,5 +1,6 @@
 use card_game::Session;
-use klondike::Klondike;
+use crate::Klondike;
+
 #[test]
 fn test_is_winnable() {
 	// is winnable
@@ -15,6 +16,8 @@ fn test_is_winnable() {
 	}
 }
 
+
+#[cfg(feature = "serde")]
 #[test]
 fn test_json() {
 	let mut session = Session::new_default(Klondike::with_seed(124));
@@ -31,6 +34,7 @@ fn test_json() {
 	assert_eq!(serialized, serialized2);
 }
 
+#[cfg(feature = "serde")]
 #[test]
 fn test_rmp() {
 	let mut session = Session::new_default(Klondike::with_seed(124));