public Task SetParametersAsync(ParameterView parameters)
{
var suppliedName = parameters.GetValueOrDefault <string>("Name");
if (suppliedName != _subscribedName)
{
_registry.Unsubscribe(_subscribedName, _onChangeCallback);
_registry.Subscribe(suppliedName, _onChangeCallback);
_subscribedName = suppliedName;
}
return(Task.CompletedTask);
}
public void CanGetValueOrDefault_WithMultipleMatchingValues()
{
// Arrange
var myEntryValue = new object();
var parameters = new ParameterView(ParameterViewLifetime.Unbound, new[]
{
RenderTreeFrame.Element(0, "some element").WithElementSubtreeLength(3),
RenderTreeFrame.Attribute(1, "my entry", myEntryValue),
RenderTreeFrame.Attribute(1, "my entry", new object()),
}, 0);
// Act
var result = parameters.GetValueOrDefault <object>("my entry");
// Assert: Picks first match
Assert.Same(myEntryValue, result);
}
public void CanGetValueOrDefault_WithNonExistingValue()
{
// Arrange
var parameters = new ParameterView(ParameterViewLifetime.Unbound, new[]
{
RenderTreeFrame.Element(0, "some element").WithElementSubtreeLength(2),
RenderTreeFrame.Attribute(1, "some other entry", new object())
}, 0).WithCascadingParameters(new List <CascadingParameterState>
{
new CascadingParameterState("another entry", new TestCascadingValue(null))
});
// Act
var result = parameters.GetValueOrDefault <DateTime>("nonexisting entry");
// Assert
Assert.Equal(default, result);
public void CanGetValueOrDefault_WithExistingValue()
{
// Arrange
var myEntryValue = new object();
var parameters = new ParameterView(ParameterViewLifetime.Unbound, new[]
{
RenderTreeFrame.Element(0, "some element").WithElementSubtreeLength(2),
RenderTreeFrame.Attribute(1, "my entry", myEntryValue),
RenderTreeFrame.Attribute(1, "my other entry", new object())
}, 0);
// Act
var result = parameters.GetValueOrDefault <object>("my entry");
// Assert
Assert.Same(myEntryValue, result);
}