feat: pipeline improvements

packages/collection-utils/test/tree-group.spec.js

@@ -12,17 +12,17 @@
  *  You should have received a copy of the GNU General Public License along with
  *  this program. If not, see <https://www.gnu.org/licenses/>.
  */
+import {treeGroupBy} from '../src/index.js';
 import {expect} from 'chai';
-import {Tree, treeGroupBy} from '../src/index.js';
-
-interface TestItem {
-  id: number;
-  path?: string[];
-}
 
+/**
+ * @typedef {{id: number; path?: string[]}} TestItem
+ * @typedef {import('../src/types.js').Tree<TestItem>} TestItemTree
+ */
 describe('tree-group', function () {
   it('should create a tree', function () {
-    const items: Array<TestItem> = [
+    /** @type {TestItem[]} */
+    const items = [
       {
         id: 1,
         path: ['a', 'b', 'c'],
@@ -35,20 +35,22 @@ describe('tree-group', function () {
 
     const tree = treeGroupBy(items, item => item.path ?? []);
 
-    const expectedTree: Tree<TestItem> = {
-      a: {
+    /** @type {TestItemTree} */
+    const expectedTree = {
+      a: /** @type {TestItemTree} */ ({
         b: {
           c: {_: [items[0]]},
           d: {_: [items[1]]},
-        } as Tree<TestItem>,
-      } as Tree<TestItem>,
-    } as Tree<TestItem>;
+        },
+      }),
+    };
 
     expect(tree).to.deep.equal(expectedTree);
   });
 
   it('should also sort empty paths', () => {
-    const items: Array<TestItem> = [
+    /** @type {TestItem[]} */
+    const items = [
       {
         id: 1,
         path: ['a', 'b', 'c'],
@@ -60,14 +62,14 @@ describe('tree-group', function () {
 
     const tree = treeGroupBy(items, item => item.path ?? []);
 
-    const expectedTree: Tree<TestItem> = {
+    const expectedTree = /** @type {TestItemTree} */ ({
       a: {
         b: {
           c: {_: [items[0]]},
-        } as Tree<TestItem>,
-      } as Tree<TestItem>,
+        },
+      },
       _: [items[1]],
-    } as Tree<TestItem>;
+    });
 
     expect(tree).to.deep.equal(expectedTree);
   });