data-bind is not get processed in uiComponent

[MrOg]

Hi,
I have a problem with data-bind processing. It's not get processed in template if it was added into uiComponent.

Example:

uiComponent

...
<fieldset name="test_data_bind">
	<argument name="data" xsi:type="array">
		<item name="config" xsi:type="array">
			<item name="label" xsi:type="string" translate="true">Test data-bind</item>
			<item name="collapsible" xsi:type="boolean">true</item>
			<item name="sortOrder" xsi:type="number">30</item>
		</item>
	</argument>
	<container name="test_data_bind_container" >
		<argument name="data" xsi:type="array">
			<item name="config" xsi:type="array">
				<item name="sortOrder" xsi:type="number">10</item>
			</item>
		</argument>
		<htmlContent name="test_data_bind_html_content">
			<argument name="block" xsi:type="object">TestVendor\TestModule\Block\Adminhtml\Test</argument>
		</htmlContent>
	</container>
</fieldset>
...

Block

<?php
namespace TestVendor\TestModule\Block\Adminhtml;

class Test extends \Magento\Backend\Block\Template
{
	protected $_template = 'TestVendor_TestModule::widget/form/test.phtml';
}

Template

<a data-bind="click: alert('x');">Test</a> 

If same block is added directly to layout then everything is fine and data-bind get processed and i see alert message on click.
But i need to get it as a fieldset of uiComponent.

What am i doing wrong and how can i do this?

Thanks in advance.