public async Task WritingToCurrentValueDoesNotInvokeValueChangedIfUnchanged()
{
// Arrange
var model = new TestModel();
var valueChangedCallLog = new List <string>();
var rootComponent = new TestInputHostComponent <string, TestInputComponent <string> >
{
EditContext = new EditContext(model),
Value = "initial value",
ValueChanged = val => valueChangedCallLog.Add(val),
ValueExpression = () => model.StringProperty
};
var inputComponent = await InputRenderer.RenderAndGetComponent(rootComponent);
Assert.Empty(valueChangedCallLog);
// Act
inputComponent.CurrentValue = "initial value";
// Assert
Assert.Empty(valueChangedCallLog);
}
public async Task ParsesCurrentValueAsStringWhenChanged_Invalid()
{
// Arrange
var model = new TestModel();
var valueChangedArgs = new List <DateTime>();
var rootComponent = new TestInputHostComponent <DateTime, TestDateInputComponent>
{
EditContext = new EditContext(model),
ValueChanged = valueChangedArgs.Add,
ValueExpression = () => model.DateProperty
};
var fieldIdentifier = FieldIdentifier.Create(() => model.DateProperty);
var inputComponent = await InputRenderer.RenderAndGetComponent(rootComponent);
var numValidationStateChanges = 0;
rootComponent.EditContext.OnValidationStateChanged += (sender, eventArgs) => { numValidationStateChanges++; };
// Act/Assert 1: Transition to invalid
await inputComponent.SetCurrentValueAsStringAsync("1991/11/40");
Assert.Empty(valueChangedArgs);
Assert.True(rootComponent.EditContext.IsModified(fieldIdentifier));
Assert.Equal(new[] { "Bad date value" }, rootComponent.EditContext.GetValidationMessages(fieldIdentifier));
Assert.Equal(1, numValidationStateChanges);
// Act/Assert 2: Transition to valid
await inputComponent.SetCurrentValueAsStringAsync("1991/11/20");
var receivedParsedValue = valueChangedArgs.Single();
Assert.Equal(1991, receivedParsedValue.Year);
Assert.Equal(11, receivedParsedValue.Month);
Assert.Equal(20, receivedParsedValue.Day);
Assert.True(rootComponent.EditContext.IsModified(fieldIdentifier));
Assert.Empty(rootComponent.EditContext.GetValidationMessages(fieldIdentifier));
Assert.Equal(2, numValidationStateChanges);
}
public async Task CssClassCombinesClassWithFieldClass()
{
// Arrange
var model = new TestModel();
var rootComponent = new TestInputHostComponent <string, TestInputComponent <string> >
{
AdditionalAttributes = new Dictionary <string, object>()
{
{ "class", "my-class other-class" },
},
EditContext = new EditContext(model),
ValueExpression = () => model.StringProperty
};
var fieldIdentifier = FieldIdentifier.Create(() => model.StringProperty);
// Act/Assert
var inputComponent = await InputRenderer.RenderAndGetComponent(rootComponent);
Assert.Equal("my-class other-class valid", inputComponent.CssClass);
// Act/Assert: Retains custom class when changing field class
rootComponent.EditContext.NotifyFieldChanged(fieldIdentifier);
Assert.Equal("my-class other-class modified valid", inputComponent.CssClass);
}