英文:
Check if Element is focused - Blazor B-Unit
问题
[Fact]public async Task ClickComponent_FocusInputField(){string testIdentifier = "MyTestIdentifier";List<string> testValue = new() { "MyTestValue1", "MyTestValue3", "MyTestValue3" };using var ctx = new TestContext();var cut = ctx.RenderComponent<DataRowTagSelectComponent<string>>(parameters => parameters.Add(p => p.Values, testValue).Add(p => p.DataRowIdentifier, testIdentifier).Add(p => p.MainDataEditMode, true));IElement mainContainerTarget = cut.Find(".main-data-data-row");// Mocking click of containermainContainerTarget.Click();// Important stuff is happening here - how do I access the currently active item?// Or how do I check if an element is focused?// Use the `await` keyword to ensure FocusAsync() completes before proceeding.await Task.Delay(100); // Add a small delay to let FocusAsync complete (adjust as needed).// Check if the input element is focused.IElement inputTarget = cut.Find(".main-data-data-row__chip-container__input");Assert.NotNull(inputTarget);Assert.True(inputTarget.IsFocused);}
Note: In the updated code, I added await Task.Delay(100); to ensure that the asynchronous FocusAsync() method has a chance to complete before you check if the input element is focused. You may need to adjust the delay duration as needed based on the actual behavior of FocusAsync().
英文:
I am writing unittests for my component. This component looks like this:
component.razor
<div class="main-data-data-row" @onclick="@HandleDataRowClick">...<input class="main-data-data-row__chip-container__input" ref="InputRef"/></div>
component.razor.cs
public partial class DataRowTagSelectComponent<T> : DataRowComponentBase{...public ElementReference InputRef { get; set; }...public void HandleDataRowClick(){if (!Disabled){InputRef.FocusAsync();}}}
Now to the question
As you can see, on click of the container, the input field is focused. How would one test this in a B-Unit test?
This is how my unit test looks so far:
[Fact]public void ClickComponent_FocusInputField(){string testIdentifier = "MyTestIdentifier";List<string> testValue = new() { "MyTestValue1", "MyTestValue3", "MyTestValue3", };using var ctx = new TestContext();var cut = ctx.RenderComponent<DataRowTagSelectComponent<string>>(parameters => parameters.Add(p => p.Values, testValue).Add(p => p.DataRowIdentifier, testIdentifier).Add(p => p.MainDataEditMode, true));IElement mainContainerTarget = cut.Find(".main-data-data-row");//mocking click of containermainContainerTarget.Click();// important stuff is happening here - how do i access the currently active item?// or how do i check if a element is focused?IElement inputTarget = cut.Find(".main-data-data-row__chip-container__input");Assert.NotNull(inputTarget);Assert.Equal(inputTarget, ???)}
答案1
得分: 1
IElement有一个IsFocused属性，您可以按如下方式使用：
IElement inputTarget = cut.Find(".main-data-data-row__chip-container__input");Assert.True(inputTarget.IsFocused);
英文:
IElement has an IsFocused property that you can use as follows:
IElement inputTarget = cut.Find(".main-data-data-row__chip-container__input");Assert.True(inputTarget.IsFocused);
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