test: Uncommend skipped tests now that happy-dom supports then

test/unit/utils.test.ts

@@ -302,11 +302,7 @@ describe('onRemove', () => {
     expect(onRemove).toHaveLength(2);
   });
 
-  // FIXME: Don't skip these tests. Currently happy-dom doesn't support the 2nd
-  // parameter in MutationObserver callbacks. Open an issue!
-
-  // TODO: Don't skip this test.
-  test.skip('calls callback when watched element is removed', () => {
+  test('calls callback when watched element is removed', () => {
     const spy = mock(() => {});
     const root = document.createElement('div');
     document.body.appendChild(root);
@@ -315,8 +311,7 @@ describe('onRemove', () => {
     expect(spy).toHaveBeenCalledTimes(1);
   });
 
-  // TODO: Don't skip this test.
-  test.skip('calls callback when parent parent element is removed', () => {
+  test('calls callback when parent parent element is removed', () => {
     const spy = mock(() => {});
     const root = document.createElement('div');
     const parent = document.createElement('div');
@@ -329,8 +324,7 @@ describe('onRemove', () => {
     expect(spy).toHaveBeenCalledTimes(1);
   });
 
-  // TODO: Don't skip this test.
-  test.skip('does not call callback when nested child element is removed', () => {
+  test('does not call callback when nested child element is removed', () => {
     const spy = mock(() => {});
     const root = document.createElement('div');
     const child = document.createElement('div');
@@ -341,8 +335,7 @@ describe('onRemove', () => {
     expect(spy).not.toHaveBeenCalled();
   });
 
-  // TODO: Don't skip this test.
-  test.skip('does not call callback when element is added or moved', () => {
+  test('does not call callback when element is added or moved', () => {
     const spy = mock(() => {});
     const root = document.createElement('div');
     const child = document.createElement('div');