refactor: use speculoos for all test assertions

tests/sprite.rs

@@ -1,6 +1,7 @@
 use glam::U16Vec2;
 use pacman::texture::sprite::{AtlasMapper, AtlasTile, MapperFrame};
 use sdl2::pixels::Color;
+use speculoos::prelude::*;
 use std::collections::HashMap;
 
 mod common;
@@ -20,10 +21,10 @@ fn test_atlas_mapper_frame_lookup() {
 
     // Test direct frame lookup
     let frame = mapper.frames.get("test");
-    assert!(frame.is_some());
+    assert_that(&frame.is_some()).is_true();
     let frame = frame.unwrap();
-    assert_eq!(frame.pos, U16Vec2::new(10, 20));
-    assert_eq!(frame.size, U16Vec2::new(32, 64));
+    assert_that(&frame.pos).is_equal_to(U16Vec2::new(10, 20));
+    assert_that(&frame.size).is_equal_to(U16Vec2::new(32, 64));
 }
 
 #[test]
@@ -46,11 +47,11 @@ fn test_atlas_mapper_multiple_frames() {
 
     let mapper = AtlasMapper { frames };
 
-    assert_eq!(mapper.frames.len(), 2);
-    assert!(mapper.frames.contains_key("tile1"));
-    assert!(mapper.frames.contains_key("tile2"));
-    assert!(!mapper.frames.contains_key("tile3"));
-    assert!(!mapper.frames.contains_key("nonexistent"));
+    assert_that(&mapper.frames.len()).is_equal_to(2);
+    assert_that(&mapper.frames.contains_key("tile1")).is_true();
+    assert_that(&mapper.frames.contains_key("tile2")).is_true();
+    assert_that(&mapper.frames.contains_key("tile3")).is_false();
+    assert_that(&mapper.frames.contains_key("nonexistent")).is_false();
 }
 
 #[test]
@@ -60,10 +61,10 @@ fn test_atlas_tile_new_and_with_color() {
     let color = Color::RGB(100, 150, 200);
 
     let tile = AtlasTile::new(pos, size, None);
-    assert_eq!(tile.pos, pos);
-    assert_eq!(tile.size, size);
-    assert_eq!(tile.color, None);
+    assert_that(&tile.pos).is_equal_to(pos);
+    assert_that(&tile.size).is_equal_to(size);
+    assert_that(&tile.color).is_equal_to(None);
 
     let tile_with_color = tile.with_color(color);
-    assert_eq!(tile_with_color.color, Some(color));
+    assert_that(&tile_with_color.color).is_equal_to(Some(color));
 }