From 8d73e5be7811079926e6c65c715283fd6d8e00c3 Mon Sep 17 00:00:00 2001
From: Colin Stewart <79332690+costdev@users.noreply.github.com>
Date: Wed, 4 Dec 2024 18:59:47 +0000
Subject: [PATCH] Add tests for `Admin_Settings::get_instance()`. (#230)

---
 .../AdminSettings_GetInstanceTest.php         | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 tests/phpunit/tests/AdminSettings/AdminSettings_GetInstanceTest.php

diff --git a/tests/phpunit/tests/AdminSettings/AdminSettings_GetInstanceTest.php b/tests/phpunit/tests/AdminSettings/AdminSettings_GetInstanceTest.php
new file mode 100644
index 00000000..112be05a
--- /dev/null
+++ b/tests/phpunit/tests/AdminSettings/AdminSettings_GetInstanceTest.php
@@ -0,0 +1,29 @@
+<?php
+/**
+ * Class AdminSettings_GetInstanceTest
+ *
+ * @package AspireUpdate
+ */
+
+/**
+ * Tests for Admin_Settings::get_instance()
+ *
+ * These tests rely on the method not being called during earlier test runs.
+ * They must run in separate processes and must not preserve global state.
+ *
+ * @runTestsInSeparateProcesses
+ * @preserveGlobalState disabled
+ *
+ * @covers \AspireUpdate\Admin_Settings::get_instance
+ */
+class AdminSettings_GetInstanceTest extends AdminSettings_UnitTestCase {
+	/**
+	 * Test that the same instance is retrieved.
+	 */
+	public function test_should_get_the_same_instance() {
+		$this->assertSame(
+			AspireUpdate\Admin_Settings::get_instance(),
+			AspireUpdate\Admin_Settings::get_instance()
+		);
+	}
+}