diff --git a/tests/php/Dev/BuildTaskTest.php b/tests/php/Dev/BuildTaskTest.php
new file mode 100644
index 000000000..8f8f54209
--- /dev/null
+++ b/tests/php/Dev/BuildTaskTest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace SilverStripe\Dev\Tests;
+
+use SilverStripe\Dev\SapphireTest;
+use SilverStripe\Dev\BuildTask;
+
+class BuildTaskTest extends SapphireTest
+{
+    /**
+     * Test that the default `$enabled` property is used when the new `is_enabled` config is not used
+     * Test that the `is_enabled` config overrides `$enabled` property
+     *
+     * This test should be removed in CMS 6 as the default $enabled property is now deprecated
+     */
+    public function testIsEnabled(): void
+    {
+        // enabledTask
+        $enabledTask = new class extends BuildTask
+        {
+            protected $enabled = true;
+            public function run($request)
+            {
+                // noop
+            }
+        };
+        $this->assertTrue($enabledTask->isEnabled());
+        $enabledTask->config()->set('is_enabled', false);
+        $this->assertFalse($enabledTask->isEnabled());
+        // disabledTask
+        $disabledTask = new class extends BuildTask
+        {
+            protected $enabled = false;
+            public function run($request)
+            {
+                // noop
+            }
+        };
+        $this->assertFalse($disabledTask->isEnabled());
+        $disabledTask->config()->set('is_enabled', true);
+        $this->assertTrue($disabledTask->isEnabled());
+    }
+}