From 3548f95f9cb174a3dc4398fdf5da370c802bf55d Mon Sep 17 00:00:00 2001
From: Charles Lyding <19598772+clydin@users.noreply.github.com>
Date: Tue, 13 May 2025 19:11:41 -0400
Subject: [PATCH] fix(@angular/build): setup unit-test polyfills before TestBed
 init

To ensure that Zone.js is fully setup and patched prior to the use of TestBed,
the setup file order for the `vitest` runner of the `unit-test` builder
has been swapped. This is particularly relevant for `fakeAsync` which
has a module level statement that attempts to capture the `Zone` instance.
If Zone.js is not setup at that point, fakeAsync will fail to function in
tests.
---
 packages/angular/build/src/builders/unit-test/builder.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/angular/build/src/builders/unit-test/builder.ts b/packages/angular/build/src/builders/unit-test/builder.ts
index 4a0808f58115..934440eec5b6 100644
--- a/packages/angular/build/src/builders/unit-test/builder.ts
+++ b/packages/angular/build/src/builders/unit-test/builder.ts
@@ -194,7 +194,7 @@ export async function* execute(
   // Add setup file entries for TestBed initialization and project polyfills
   const setupFiles = ['init-testbed.js'];
   if (buildTargetOptions?.polyfills?.length) {
-    setupFiles.push('polyfills.js');
+    setupFiles.unshift('polyfills.js');
   }
 
   try {