diff --git a/.vscode/settings.json b/.vscode/settings.json
index 2ba7ff8c..98958d46 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -25,7 +25,7 @@
     "editor.suggest.snippetsPreventQuickSuggestions": false,
     "editor.suggestSelection": "first",
     "editor.tabCompletion": "onlySnippets",
-    "editor.wordBasedSuggestions": false
+    "editor.wordBasedSuggestions": "off"
   },
   "[markdown]": {
     "editor.wordWrap": "on",
diff --git a/modules/code-builder/src/collision/spec/Brute.spec.ts b/modules/code-builder/src/collision/spec/Brute.spec.ts
new file mode 100644
index 00000000..37fce429
--- /dev/null
+++ b/modules/code-builder/src/collision/spec/Brute.spec.ts
@@ -0,0 +1,55 @@
+import CollisionSpaceBrute from '../Brute';
+import type { TCollisionObject } from '@/@types/collision';
+
+describe('CollisionSpaceBrute', () => {
+  let collisionSpace: CollisionSpaceBrute;
+
+  beforeEach(() => {
+    collisionSpace = new CollisionSpaceBrute(100, 100);
+  });
+
+  it('should add objects correctly', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: 10, y: 10, width: 10, height: 10 },
+      { id: 'B', x: 20, y: 20, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    expect(collisionSpace['_objects'].length).toBe(2);
+  });
+
+  it('should delete objects correctly', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: 10, y: 10, width: 10, height: 10 },
+      { id: 'B', x: 20, y: 20, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    collisionSpace.delObjects([{ id: 'A', x: 0, y: 0, width: 0, height: 0 }]);
+    expect(collisionSpace['_objects'].length).toBe(1);
+    expect(collisionSpace['_objects'][0].id).toBe('B');
+  });
+
+  it('should check collisions correctly', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: 10, y: 10, width: 10, height: 10 },
+      { id: 'B', x: 15, y: 15, width: 10, height: 10 },
+      { id: 'C', x: 50, y: 50, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    collisionSpace.setOptions({ objType: 'rect', colThres: 0 });
+    
+    const collisions = collisionSpace.checkCollision({ id: 'Test', x: 12, y: 12, width: 10, height: 10 });
+    expect(collisions).toContain('A');
+    expect(collisions).toContain('B');
+    expect(collisions).not.toContain('C');
+  });
+
+  it('should reset correctly', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: 10, y: 10, width: 10, height: 10 },
+      { id: 'B', x: 20, y: 20, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    collisionSpace.reset();
+    expect(collisionSpace['_objects'].length).toBe(0);
+  });
+});
\ No newline at end of file
diff --git a/modules/code-builder/src/collision/spec/QuadTree.spec.ts b/modules/code-builder/src/collision/spec/QuadTree.spec.ts
new file mode 100644
index 00000000..dec9cc7d
--- /dev/null
+++ b/modules/code-builder/src/collision/spec/QuadTree.spec.ts
@@ -0,0 +1,64 @@
+import CollisionSpaceQuadTree from '../QuadTree';
+import type { TCollisionObject } from '@/@types/collision';
+
+describe('CollisionSpaceQuadTree', () => {
+  let collisionSpace: CollisionSpaceQuadTree;
+
+  beforeEach(() => {
+    collisionSpace = new CollisionSpaceQuadTree(100, 100);
+  });
+
+  it('should add objects correctly', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: 10, y: 10, width: 10, height: 10 },
+      { id: 'B', x: 20, y: 20, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    expect(collisionSpace['_objMap'].size).toBe(2);
+  });
+
+  it('should delete objects correctly', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: 10, y: 10, width: 10, height: 10 },
+      { id: 'B', x: 20, y: 20, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    collisionSpace.delObjects([{ id: 'A', x: 0, y: 0, width: 0, height: 0 }]);
+    expect(collisionSpace['_objMap'].size).toBe(1);
+    expect(collisionSpace['_objMap'].has('B')).toBe(true);
+  });
+
+  it('should check collisions correctly', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: 10, y: 10, width: 10, height: 10 },
+      { id: 'B', x: 15, y: 15, width: 10, height: 10 },
+      { id: 'C', x: 50, y: 50, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    collisionSpace.setOptions({ objType: 'rect', colThres: 0 });
+    
+    const collisions = collisionSpace.checkCollision({ id: 'Test', x: 12, y: 12, width: 10, height: 10 });
+    expect(collisions).toContain('A');
+    expect(collisions).toContain('B');
+    expect(collisions).not.toContain('C');
+  });
+
+  it('should reset correctly', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: 10, y: 10, width: 10, height: 10 },
+      { id: 'B', x: 20, y: 20, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    collisionSpace.reset();
+    expect(collisionSpace['_objMap'].size).toBe(0);
+  });
+
+  it('should not add objects outside the collision space', () => {
+    const objects: TCollisionObject[] = [
+      { id: 'A', x: -10, y: -10, width: 10, height: 10 },
+      { id: 'B', x: 110, y: 110, width: 10, height: 10 },
+    ];
+    collisionSpace.addObjects(objects);
+    expect(collisionSpace['_objMap'].size).toBe(0);
+  });
+});
\ No newline at end of file
diff --git a/modules/code-builder/src/collision/spec/utils.spec.ts b/modules/code-builder/src/collision/spec/utils.spec.ts
new file mode 100644
index 00000000..6d301c51
--- /dev/null
+++ b/modules/code-builder/src/collision/spec/utils.spec.ts
@@ -0,0 +1,34 @@
+import { checkCollision } from '../utils';
+import type { TCollisionObject } from '@/@types/collision';
+
+describe('Collision Utils', () => {
+  describe('checkCollision', () => {
+    const objA: TCollisionObject = { id: 'A', x: 0, y: 0, width: 10, height: 10 };
+    const objB: TCollisionObject = { id: 'B', x: 5, y: 5, width: 10, height: 10 };
+    const objC: TCollisionObject = { id: 'C', x: 20, y: 20, width: 10, height: 10 };
+
+    it('should detect collision between overlapping circles', () => {
+      expect(checkCollision(objA, objB, { objType: 'circle', colThres: 0 })).toBe(true);
+    });
+
+    it('should not detect collision between non-overlapping circles', () => {
+      expect(checkCollision(objA, objC, { objType: 'circle', colThres: 0 })).toBe(false);
+    });
+
+    it('should detect collision between overlapping rectangles', () => {
+      expect(checkCollision(objA, objB, { objType: 'rect', colThres: 0 })).toBe(true);
+    });
+
+    it('should not detect collision between non-overlapping rectangles', () => {
+      expect(checkCollision(objA, objC, { objType: 'rect', colThres: 0 })).toBe(false);
+    });
+
+    it('should respect collision threshold for circles', () => {
+      expect(checkCollision(objA, objB, { objType: 'circle', colThres: 0.9 })).toBe(false);
+    });
+
+    it('should respect collision threshold for rectangles', () => {
+      expect(checkCollision(objA, objB, { objType: 'rect', colThres: 0.9 })).toBe(false);
+    });
+  });
+});
\ No newline at end of file