From 911b4bcb1fb1b68c04610f1ef9cabb7b947f5bf0 Mon Sep 17 00:00:00 2001
From: gonzaloriestra <14979109+gonzaloriestra@users.noreply.github.com>
Date: Sat, 5 Sep 2026 00:33:57 +0000
Subject: [PATCH] [Tests] Add coverage for PickByPrefix type helper

Add unit tests for the PickByPrefix TypeScript type helper to test prefix key matching, explicit key inclusions, and non-matching key edge cases.
---
 .../public/common/ts/pick-by-prefix.test.ts   | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 packages/cli-kit/src/public/common/ts/pick-by-prefix.test.ts

diff --git a/packages/cli-kit/src/public/common/ts/pick-by-prefix.test.ts b/packages/cli-kit/src/public/common/ts/pick-by-prefix.test.ts
new file mode 100644
index 00000000000..de535dc4de5
--- /dev/null
+++ b/packages/cli-kit/src/public/common/ts/pick-by-prefix.test.ts
@@ -0,0 +1,47 @@
+import {PickByPrefix} from './pick-by-prefix.js'
+import {describe, expectTypeOf, test} from 'vitest'
+
+describe('PickByPrefix', () => {
+  test('picks keys matching a prefix', () => {
+    interface Source {
+      foo_one: number
+      foo_two: string
+      bar_one: boolean
+    }
+
+    type Result = PickByPrefix<Source, 'foo_'>
+
+    expectTypeOf<Result>().toEqualTypeOf<{
+      foo_one: number
+      foo_two: string
+    }>()
+  })
+
+  test('picks keys matching a prefix and explicitly included keys', () => {
+    interface Source {
+      foo_one: number
+      foo_two: string
+      bar_one: boolean
+      extra: string
+    }
+
+    type Result = PickByPrefix<Source, 'foo_', 'extra'>
+
+    expectTypeOf<Result>().toEqualTypeOf<{
+      foo_one: number
+      foo_two: string
+      extra: string
+    }>()
+  })
+
+  test('returns empty object type when no keys match prefix or extra keys', () => {
+    interface Source {
+      bar_one: boolean
+      baz_two: number
+    }
+
+    type Result = PickByPrefix<Source, 'foo_'>
+
+    expectTypeOf<Result>().toEqualTypeOf<{}>()
+  })
+})