From 00ca4434c1e8dcc112c970f584f7384a2badf009 Mon Sep 17 00:00:00 2001
From: Caleb Ukle <caleb@nrwl.io>
Date: Wed, 19 Apr 2023 11:55:11 -0500
Subject: [PATCH] fix(testing): nullcheck polyfills in ng component testing
 (#16411)

(cherry picked from commit 1ad7e3de48afc32c55c48de71286ba54155f1d03)
---
 packages/angular/plugins/component-testing.ts | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/packages/angular/plugins/component-testing.ts b/packages/angular/plugins/component-testing.ts
index a3e6fe4022e64f..f1c3f9c25b38b5 100644
--- a/packages/angular/plugins/component-testing.ts
+++ b/packages/angular/plugins/component-testing.ts
@@ -200,10 +200,15 @@ function normalizeBuildTargetOptions(
       return polyfill;
     };
     // paths need to be unix paths for angular devkit
-    buildOptions.polyfills =
-      Array.isArray(buildOptions.polyfills) && buildOptions.polyfills.length > 0
-        ? (buildOptions.polyfills as string[]).map((p) => handlePolyfillPath(p))
-        : handlePolyfillPath(buildOptions.polyfills as string);
+    if (buildOptions.polyfills) {
+      buildOptions.polyfills =
+        Array.isArray(buildOptions.polyfills) &&
+        buildOptions.polyfills.length > 0
+          ? (buildOptions.polyfills as string[]).map((p) =>
+              handlePolyfillPath(p)
+            )
+          : handlePolyfillPath(buildOptions.polyfills as string);
+    }
     buildOptions.main = joinPathFragments(offset, buildOptions.main);
     buildOptions.index =
       typeof buildOptions.index === 'string'