perf: optimize getAllAttach function

src/plugins/allure-reporter-plugin.ts

@@ -640,7 +640,7 @@
     }
 
     const group = this.currentGroup;
     const test = group!.startTest(title);
 
     allTests.push({ specRelative: this.currentSpec?.relative, fullTitle, mochaId: id, uuid: test.uuid }); // to show warning
     this.tests.push(test);
@@ -733,7 +733,7 @@
     }
   }
 
   endTest(arg: AllureTaskArgs<'testEnded'>): { test: string; attachments: any[] } | undefined {
     const { result, details } = arg;
     const storedStatus = this.testStatusStored;
     const storedDetails = this.testDetailsStored;
@@ -774,11 +774,19 @@
       if (!this.currentTest) {
         return [];
       }
-      item.steps.forEach(step => {
-        res.push(...getAllAttach(res, step));
-      });
 
-      return [...res, ...item.attachments];
+      const inner = (steps: ExecutableItem[], accumulatedRes: Attachment[]) => {
+        if (steps.length === 0) {
+          return accumulatedRes;
+        }
+
+        const [first, ...rest] = steps;
+        const newRes = [...accumulatedRes, ...first.attachments];
+
+        return inner(rest, newRes);
+      };
+
+      return inner(item.steps, res);
     };
     const resAtt: Attachment[] = [...this.currentTest.wrappedItem.attachments];
     const attachments = getAllAttach(resAtt, this.currentTest.wrappedItem);