chessfriend/moves/tests/flags.rs
2025-05-08 17:37:51 -07:00

110 lines
3 KiB
Rust

// Eryn Wells <eryn@erynwells.me>
use chessfriend_board::castle::Castle;
use chessfriend_core::{piece, Color, File, Shape, Square};
use chessfriend_moves::{testing::*, Builder, PromotionShape};
macro_rules! assert_flag {
($move:expr, $left:expr, $right:expr, $desc:expr) => {
assert_eq!($left, $right, "{:?} -> {}", $move, stringify!($desc))
};
}
macro_rules! assert_flags {
($move:expr, $quiet:expr, $double_push:expr, $en_passant:expr, $capture:expr, $castle:expr, $promotion:expr) => {
assert_flag!($move, $move.is_quiet(), $quiet, "is_quiet");
assert_flag!(
$move,
$move.is_double_push(),
$double_push,
"is_double_push"
);
assert_flag!($move, $move.is_en_passant(), $en_passant, "is_en_passant");
assert_flag!($move, $move.is_capture(), $capture, "is_capture");
assert_flag!($move, $move.is_castle(), $castle, "is_castle");
assert_flag!($move, $move.is_promotion(), $promotion, "is_promotion");
};
}
#[test]
fn move_flags_quiet() -> TestResult {
let mv = Builder::push(&piece!(White Pawn on A4))
.to(Square::A5)
.build()?;
assert_flags!(mv, true, false, false, false, false, false);
Ok(())
}
#[test]
fn move_flags_double_push() -> TestResult {
let mv = Builder::double_push(File::C, Color::White).build()?;
assert_flags!(mv, false, true, false, false, false, false);
Ok(())
}
#[test]
fn move_flags_capture() -> TestResult {
let mv = Builder::new()
.from(Square::A4)
.capturing_on(Square::B5)
.build()?;
assert_flags!(mv, false, false, false, true, false, false);
Ok(())
}
#[test]
fn move_flags_en_passant_capture() -> TestResult {
let mv = unsafe {
Builder::new()
.from(Square::A4)
.capturing_en_passant_on(Square::B3)
.build_unchecked()
};
assert_flags!(mv, false, false, true, true, false, false);
assert_eq!(mv.origin_square(), Square::A4);
assert_eq!(mv.target_square(), Square::B3);
assert_eq!(mv.capture_square(), Some(Square::B4));
Ok(())
}
#[test]
fn move_flags_promotion() -> TestResult {
let mv = Builder::push(&piece!(White Pawn on H7))
.to(Square::H8)
.promoting_to(PromotionShape::Queen)
.build()?;
assert_flags!(mv, false, false, false, false, false, true);
assert_eq!(mv.promotion(), Some(Shape::Queen));
Ok(())
}
#[test]
fn move_flags_capture_promotion() -> TestResult {
let mv = Builder::push(&piece!(White Pawn on H7))
.to(Square::H8)
.capturing_piece(&piece!(Black Knight on G8))
.promoting_to(PromotionShape::Queen)
.build()?;
assert_flags!(mv, false, false, false, true, false, true);
assert_eq!(mv.promotion(), Some(Shape::Queen));
Ok(())
}
#[test]
fn move_flags_castle() -> TestResult {
let mv = Builder::castling(Color::White, Castle::KingSide).build()?;
assert_flags!(mv, false, false, false, false, true, false);
Ok(())
}