Add the test case to run for the local env

plugins/performance-lab/tests/includes/site-health/effective-asset-cache-headers/test-effective-asset-cache-headers.php

@@ -28,6 +28,21 @@ public function setUp(): void {
 		add_filter( 'pre_http_request', array( $this, 'mock_http_requests' ), 10, 3 );
 	}
 
+	/**
+	 * Test that the effective caching headers test is added to the site health tests.
+	 *
+	 * @covers ::perflab_effective_asset_cache_headers_add_test
+	 */
+	public function test_perflab_effective_asset_cache_headers_add_test(): void {
+		$tests = array(
+			'direct' => array(),
+		);
+
+		$tests = perflab_effective_asset_cache_headers_add_test( $tests );
+
+		$this->assertArrayNotHasKey( 'effective_asset_cache_headers', $tests['direct'] );
+	}
+
 	/**
 	 * Test that the effective caching headers test is attached to the site status tests.
 	 *