public async Task SupportsTwoWayBindingForEnumValues()
{
// Arrange/Act
var myEnumType = FullTypeName <MyEnum>();
var component = CompileToComponent(
$@"<input bind=""MyValue"" />
@functions {{
public {myEnumType} MyValue {{ get; set; }} = {myEnumType}.{nameof(MyEnum.FirstValue)};
}}");
var myValueProperty = component.GetType().GetProperty("MyValue");
var renderer = new TestRenderer();
// Assert
Action <UIEventArgs> setter = null;
var frames = GetRenderTree(renderer, component);
Assert.Collection(frames,
frame => AssertFrame.Element(frame, "input", 3, 0),
frame => AssertFrame.Attribute(frame, "value", MyEnum.FirstValue.ToString(), 1),
frame =>
{
AssertFrame.Attribute(frame, "onchange", 2);
setter = Assert.IsType <Action <UIEventArgs> >(frame.AttributeValue);
});
// Trigger the change event to show it updates the property
await renderer.Invoke(() => setter(new UIChangeEventArgs()
{
Value = MyEnum.SecondValue.ToString(),
}));
Assert.Equal(MyEnum.SecondValue, (MyEnum)myValueProperty.GetValue(component));
}
public async Task SupportsTwoWayBindingForBoolValues()
{
// Arrange/Act
var component = CompileToComponent(
@"<input bind=""MyValue"" />
@functions {
public bool MyValue { get; set; } = true;
}");
var myValueProperty = component.GetType().GetProperty("MyValue");
var renderer = new TestRenderer();
// Assert
Action <UIEventArgs> setter = null;
var frames = GetRenderTree(renderer, component);
Assert.Collection(frames,
frame => AssertFrame.Element(frame, "input", 3, 0),
frame => AssertFrame.Attribute(frame, "value", true, 1),
frame =>
{
AssertFrame.Attribute(frame, "onchange", 2);
setter = Assert.IsType <Action <UIEventArgs> >(frame.AttributeValue);
});
// Trigger the change event to show it updates the property
await renderer.Invoke(() => setter(new UIChangeEventArgs()
{
Value = false,
}));
Assert.False((bool)myValueProperty.GetValue(component));
}
public async Task SupportsTwoWayBindingForTextareas()
{
// Arrange/Act
var component = CompileToComponent(
@"<textarea bind=""MyValue"" ></textarea>
@functions {
public string MyValue { get; set; } = ""Initial value"";
}");
var myValueProperty = component.GetType().GetProperty("MyValue");
var renderer = new TestRenderer();
// Assert
Action <UIEventArgs> setter = null;
var frames = GetRenderTree(renderer, component);
Assert.Collection(frames,
frame => AssertFrame.Element(frame, "textarea", 3, 0),
frame => AssertFrame.Attribute(frame, "value", "Initial value", 1),
frame =>
{
AssertFrame.Attribute(frame, "onchange", 2);
setter = Assert.IsType <Action <UIEventArgs> >(frame.AttributeValue);
});
// Trigger the change event to show it updates the property
await renderer.Invoke(() => setter(new UIChangeEventArgs()
{
Value = "Modified value",
}));
Assert.Equal("Modified value", myValueProperty.GetValue(component));
}
public async Task SupportsTwoWayBindingForDateValuesWithFormatString()
{
// Arrange/Act
var testDateFormat = "ddd yyyy-MM-dd";
var component = CompileToComponent(
$@"<input bind=""@MyDate"" format-value=""{testDateFormat}"" />
@functions {{
public DateTime MyDate {{ get; set; }} = new DateTime(2018, 3, 4);
}}");
var myDateProperty = component.GetType().GetProperty("MyDate");
var renderer = new TestRenderer();
// Assert
Action <UIEventArgs> setter = null;
var frames = GetRenderTree(renderer, component);
Assert.Collection(frames,
frame => AssertFrame.Element(frame, "input", 3, 0),
frame => AssertFrame.Attribute(frame, "value", new DateTime(2018, 3, 4).ToString(testDateFormat), 1),
frame =>
{
AssertFrame.Attribute(frame, "onchange", 2);
setter = Assert.IsType <Action <UIEventArgs> >(frame.AttributeValue);
});
// Trigger the change event to show it updates the property
await renderer.Invoke(() => setter(new UIChangeEventArgs()
{
Value = new DateTime(2018, 3, 5).ToString(testDateFormat),
}));
Assert.Equal(new DateTime(2018, 3, 5), myDateProperty.GetValue(component));
}
static CascadingValue <T> CreateCascadingValueComponent <T>(T value, string name = null)
{
var supplier = new CascadingValue <T>();
var renderer = new TestRenderer();
supplier.Configure(new RenderHandle(renderer, 0));
var supplierParams = new Dictionary <string, object>
{
{ "Value", value }
};
if (name != null)
{
supplierParams.Add("Name", name);
}
renderer.Invoke(() => supplier.SetParametersAsync(ParameterCollection.FromDictionary(supplierParams)));
return(supplier);
}