first

tests/Unit/Actions/AddsDefaults.php

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+<?php
+
+use NunoMaduro\Collision\Adapters\Phpunit\Printer;
+use Pest\Actions\AddsDefaults;
+use PHPUnit\TextUI\DefaultResultPrinter;
+
+it('sets defaults', function () {
+    $arguments = AddsDefaults::to(['bar' => 'foo']);
+
+    assertInstanceOf(Printer::class, $arguments['printer']);
+    assertEquals($arguments['bar'], 'foo');
+});
+
+it('does not override options', function () {
+    $defaultResultPrinter = new DefaultResultPrinter();
+
+    assertEquals(AddsDefaults::to(['printer' => $defaultResultPrinter]), [
+        'printer' => $defaultResultPrinter,
+    ]);
+});