chore: Add test collections script

packages/dev-server/scripts/generate-deep-collections.ts

@@ -0,0 +1,35 @@
+import { CollectionDefinition, InitialData } from '@vendure/core';
+import fs from 'fs';
+import path from 'path';
+
+/**
+ * This script generates lots of Collections, nested 3 levels deep. It is useful for testing
+ * scenarios where we need to work with a large amount of Collections.
+ */
+const collections: CollectionDefinition[] = [];
+
+for (let i = 1; i <= 20; i++) {
+    const IName = `Collection ${i}`;
+    collections.push({
+        name: IName,
+        filters: [],
+    });
+    for (let j = 1; j <= 5; j++) {
+        const JName = `Collection ${i}-${j}`;
+        collections.push({
+            name: JName,
+            filters: [],
+            parentName: IName,
+        });
+        for (let k = 1; k <= 3; k++) {
+            const KName = `Collection ${i}-${j}-${k}`;
+            collections.push({
+                name: KName,
+                filters: [],
+                parentName: JName,
+            });
+        }
+    }
+}
+
+fs.writeFileSync(path.join(__dirname, 'collections.json'), JSON.stringify(collections, null, 2), 'utf-8');