Blazor test InputDate binding with bUnit

Question

I have a Blazor page and want to do unittesting via bUnit with xUnit. I want change input value and verify result.

With InputText everything works fine. With InputNumber I can pass only string. If I pass number value stays the same.

My problem with InputDate binding: I can't change value properly. I've tried:

cut.Find("#date input").Change(myDate.Date);

The value stays the same(unchanged).

cut.Find("#date input").Change(myDate.Date.ToString());

or

cut.Find("#date input").Change(myDate.Date.ToString("dd/MM/yyyy"));

The value is invalid, validation-message:The date field must be a date.

My Blazor-page:

 <EditForm Model="this"> <DataAnnotationsValidator /> <div id="name"> <label>@name</label> <ValidationMessage For="@(() => this.name)" /> <InputText @bind-Value="this.name"/> </div> <div id="date"> <label>@date</label> <ValidationMessage For="@(() => this.date)" /> <InputDate @bind-Value="this.date" /> </div> <div id="num"> <label>@num</label> <ValidationMessage For="@(() => this.num)" /> <InputNumber @bind-Value="this.num" max="23" min="0" /> </div> </EditForm> @code{ private DateTime date = DateTime.Today; private string name = "n"; private int num = 11; }

and my UnitTest:

 [Fact]
    public void Test1()
    {
        DateTime myDate = new DateTime(2020, 11, 15, 15, 0, 0);
        string myName = "bbb";
        using var ctx = new TestContext();

        // Act
        var cut = ctx.RenderComponent<BlazorInputDate.Pages.Index>();
        cut.Find("#name input").Change(myName);
        cut.Find("#date input").Change(myDate.Date);
        cut.Find("#num input").Change(myDate.Hour.ToString());

        // Assert
        Assert.Equal(myName, cut.Find("#name label").InnerHtml);
        Assert.Equal(myDate.Hour.ToString(), cut.Find("#num label").InnerHtml);
        Assert.Equal(myDate.ToString(), cut.Find("#date label").InnerHtml);
    }

How cat I test InputDate binding?

Answer 1

It was wrong date format.

        cut.Find("#date input").Change(myDate.Date.ToString("yyyy-MM-dd"));

works for me.