/** * Render admin callback */ function test_render_admin_callback() { do_action('admin_menu'); do_action('admin_init'); ob_start(); $this->admin->render_admin_callback(); $contents = ob_get_clean(); $this->assertContains('<div class="wrap about-wrap">', $contents); $this->assertContains('<form method="POST" action="options.php"', $contents); }