refactor: move all tests out of src/ into tests/, remove unnecessary tests

tests/directional.rs

@@ -0,0 +1,50 @@
+use glam::U16Vec2;
+use pacman::entity::direction::Direction;
+use pacman::texture::animated::AnimatedTexture;
+use pacman::texture::directional::DirectionalAnimatedTexture;
+use pacman::texture::sprite::AtlasTile;
+use sdl2::pixels::Color;
+use std::collections::HashMap;
+
+fn mock_atlas_tile(id: u32) -> AtlasTile {
+    AtlasTile {
+        pos: U16Vec2::new(0, 0),
+        size: U16Vec2::new(16, 16),
+        color: Some(Color::RGB(id as u8, 0, 0)),
+    }
+}
+
+fn mock_animated_texture(id: u32) -> AnimatedTexture {
+    AnimatedTexture::new(vec![mock_atlas_tile(id)], 0.1).expect("Invalid frame duration")
+}
+
+#[test]
+fn test_partial_directions() {
+    let mut textures = HashMap::new();
+    textures.insert(Direction::Up, mock_animated_texture(1));
+
+    let texture = DirectionalAnimatedTexture::new(textures, HashMap::new());
+
+    assert_eq!(texture.texture_count(), 1);
+    assert!(texture.has_direction(Direction::Up));
+    assert!(!texture.has_direction(Direction::Down));
+    assert!(!texture.has_direction(Direction::Left));
+    assert!(!texture.has_direction(Direction::Right));
+}
+
+#[test]
+fn test_all_directions() {
+    let mut textures = HashMap::new();
+    textures.insert(Direction::Up, mock_animated_texture(1));
+    textures.insert(Direction::Down, mock_animated_texture(2));
+    textures.insert(Direction::Left, mock_animated_texture(3));
+    textures.insert(Direction::Right, mock_animated_texture(4));
+
+    let texture = DirectionalAnimatedTexture::new(textures, HashMap::new());
+
+    assert_eq!(texture.texture_count(), 4);
+    assert!(texture.has_direction(Direction::Up));
+    assert!(texture.has_direction(Direction::Down));
+    assert!(texture.has_direction(Direction::Left));
+    assert!(texture.has_direction(Direction::Right));
+}