Csharp 使用 bUnit 测试禁用属性

请参阅此简化的Blazor组件MyComponent:

<button id="enableButton" @onclick="Enable">Enable</button>
<button id="disableButton" @onclick="Disable">Disable</button>

<select disabled="@_disabled">
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="mercedes">Mercedes</option>
  <option value="audi">Audi</option>
</select>

@code {
    private bool _disabled;
    private void Enable() { _disabled = false; }
    private void Disable() { _disabled = true; }
}

下面是Blazor组件的两个简单的bUnit测试:

[Test]
public void Enable()
{
    using var testContext = new TestContext();
    var testee = testContext.RenderComponent<MyComponent>();

    testee.Find("[id^=\"enableButton\"]").Click();

    testee.Find("select").IsDisabled().Should().BeFalse();
}

[Test]
public void Disable()
{
    using var testContext = new TestContext();
    var testee = testContext.RenderComponent<MyComponent>();

    testee.Find("[id^=\"disableButton\"]").Click();

    testee.Find("select").IsDisabled().Should().BeTrue();
}

Disable测试失败，Expected testee.Find("select").IsDisabled() to be true, but found False.测试失败.但当在浏览器中渲染MyComponent时，一切都按预期进行.

我做错了什么？