chore: Match.arrEq is not defined for arrays containing undefined (…

…#1589)

So test without them.

---

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under the terms of the [Apache 2.0 license].

[Apache 2.0 license]: https://www.apache.org/licenses/LICENSE-2.0

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Co-authored-by: github-actions <github-actions@github.com>
(cherry picked from commit 4f3e87e)

test/tsconfig/validator.test.ts

@@ -91,11 +91,13 @@ describe('Built-in matchers', () => {
   });
 
   describe('Match.arrEq', () => {
+    const arrayEl = anythingExceptUndefined();
+
     test('pass', () => {
       fc.assert(
         fc.property(
           fc
-            .array(fc.anything({ maxDepth: 0 }))
+            .array(arrayEl)
             .chain((expected) =>
               fc.tuple(
                 fc.constant(expected),
@@ -111,10 +113,10 @@ describe('Built-in matchers', () => {
     test('fail', () => {
       fc.assert(
         fc.property(
-          fc.uniqueArray(fc.anything(), {
+          fc.uniqueArray(arrayEl, {
             minLength: 1,
           }),
-          fc.array(fc.anything()),
+          fc.array(arrayEl),
           (possible, actualBase) => {
             const expected = possible.slice(0, -1);
             const actual = [...actualBase, possible.at(-1)];
@@ -229,3 +231,7 @@ describe('Object Validator', () => {
     );
   });
 });
+
+function anythingExceptUndefined() {
+  return fc.anything().filter((x) => x !== undefined);
+}