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 container
mainContainerTarget.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 container
mainContainerTarget.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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