public void RenderComponentAsync_CanRenderEmptyElement()
{
// Arrange
var dispatcher = Renderer.CreateDefaultDispatcher();
var expectedHtml = new[] { "<", "p", ">", "</", "p", ">" };
var serviceProvider = new ServiceCollection().AddSingleton(new RenderFragment(rtb =>
{
rtb.OpenElement(0, "p");
rtb.CloseElement();
})).BuildServiceProvider();
var htmlRenderer = new HtmlRenderer(serviceProvider, _encoder, dispatcher);
// Act
var result = GetResult(dispatcher.InvokeAsync(() => htmlRenderer.RenderComponentAsync <TestComponent>(ParameterCollection.Empty)));
// Assert
Assert.Equal(expectedHtml, result);
}
public void RenderComponent_DoesNotRenderBooleanAttributesWhenValueIsFalse()
{
// Arrange
var expectedHtml = new[] { "<", "input", " />" };
var serviceProvider = new ServiceCollection().AddSingleton(new RenderFragment(rtb =>
{
rtb.OpenElement(0, "input");
rtb.AddAttribute(1, "disabled", false);
rtb.CloseElement();
})).BuildServiceProvider();
var htmlRenderer = new HtmlRenderer(serviceProvider, _encoder);
// Act
var result = htmlRenderer.RenderComponent <TestComponent>(ParameterCollection.Empty);
// Assert
Assert.Equal(expectedHtml, result);
}
public async Task CanRender_AsyncComponent()
{
// Arrange
var expectedHtml = new[] {
"<", "p", ">", "20", "</", "p", ">"
};
var serviceProvider = new ServiceCollection().AddSingleton <AsyncComponent>().BuildServiceProvider();
var htmlRenderer = new HtmlRenderer(serviceProvider, _encoder);
// Act
var result = await htmlRenderer.RenderComponentAsync <AsyncComponent>(ParameterCollection.FromDictionary(new Dictionary <string, object>
{
["Value"] = 10
}));
// Assert
Assert.Equal(expectedHtml, result);
}
public void RenderComponent_CanRenderBooleanAttributes()
{
// Arrange
var dispatcher = Renderer.CreateDefaultDispatcher();
var expectedHtml = new[] { "<", "input", " ", "disabled", " />" };
var serviceProvider = new ServiceCollection().AddSingleton(new RenderFragment(rtb =>
{
rtb.OpenElement(0, "input");
rtb.AddAttribute(1, "disabled", true);
rtb.CloseElement();
})).BuildServiceProvider();
var htmlRenderer = new HtmlRenderer(serviceProvider, _encoder, dispatcher);
// Act
var result = GetResult(dispatcher.Invoke(() => htmlRenderer.RenderComponent <TestComponent>(ParameterCollection.Empty)));
// Assert
Assert.Equal(expectedHtml, result);
}
public void RenderComponent_CanRenderWithAttributes()
{
// Arrange
var expectedHtml = new[] { "<", "p", " ", "class", "=", "\"", "lead", "\"", ">", "Hello world!", "</", "p", ">" };
var serviceProvider = new ServiceCollection().AddSingleton(new RenderFragment(rtb =>
{
rtb.OpenElement(0, "p");
rtb.AddAttribute(1, "class", "lead");
rtb.AddContent(2, "Hello world!");
rtb.CloseElement();
})).BuildServiceProvider();
var htmlRenderer = new HtmlRenderer(serviceProvider, _encoder);
// Act
var result = htmlRenderer.RenderComponent <TestComponent>(ParameterCollection.Empty);
// Assert
Assert.Equal(expectedHtml, result);
}
public void RenderComponent_HtmlEncodesAttributeValues()
{
// Arrange
var dispatcher = Renderer.CreateDefaultDispatcher();
var expectedHtml = new[] { "<", "p", " ", "class", "=", "\"", "<lead", "\"", ">", "Hello world!", "</", "p", ">" };
var serviceProvider = new ServiceCollection().AddSingleton(new RenderFragment(rtb =>
{
rtb.OpenElement(0, "p");
rtb.AddAttribute(1, "class", "<lead");
rtb.AddContent(2, "Hello world!");
rtb.CloseElement();
})).BuildServiceProvider();
var htmlRenderer = new HtmlRenderer(serviceProvider, _encoder, dispatcher);
// Act
var result = GetResult(dispatcher.Invoke(() => htmlRenderer.RenderComponent <TestComponent>(ParameterCollection.Empty)));
// Assert
Assert.Equal(expectedHtml, result);
}
public async Task CanRender_NestedAsyncComponents()
{
// Arrange
var dispatcher = Renderer.CreateDefaultDispatcher();
var expectedHtml = new[] {
"<", "p", ">", "20", "</", "p", ">",
"<", "p", ">", "80", "</", "p", ">"
};
var serviceProvider = new ServiceCollection().AddSingleton <AsyncComponent>().BuildServiceProvider();
var htmlRenderer = new HtmlRenderer(serviceProvider, _encoder, dispatcher);
// Act
var result = await dispatcher.InvokeAsync(() => htmlRenderer.RenderComponentAsync <NestedAsyncComponent>(ParameterCollection.FromDictionary(new Dictionary <string, object>
{
["Nested"] = false,
["Value"] = 10
})));
// Assert
Assert.Equal(expectedHtml, result);
}
public void RenderComponent_CanPassParameters()
{
// Arrange
var dispatcher = Renderer.CreateDefaultDispatcher();
var expectedHtml = new[] {
"<", "p", ">", "<", "input", " ", "value", "=", "\"", "5", "\"", " />", "</", "p", ">"
};
RenderFragment Content(ParameterCollection pc) => new RenderFragment((RenderTreeBuilder rtb) =>
{
rtb.OpenElement(0, "p");
rtb.OpenElement(1, "input");
rtb.AddAttribute(2, "change", pc.GetValueOrDefault <Action <UIChangeEventArgs> >("update"));
rtb.AddAttribute(3, "value", pc.GetValueOrDefault <int>("value"));
rtb.CloseElement();
rtb.CloseElement();
});
var serviceProvider = new ServiceCollection()
.AddSingleton(new Func <ParameterCollection, RenderFragment>(Content))
.BuildServiceProvider();
var htmlRenderer = new HtmlRenderer(serviceProvider, _encoder, dispatcher);
Action <UIChangeEventArgs> change = (UIChangeEventArgs changeArgs) => throw new InvalidOperationException();
// Act
var result = GetResult(dispatcher.Invoke(() => htmlRenderer.RenderComponent <ComponentWithParameters>(
new ParameterCollection(new[] {
RenderTreeFrame.Element(0, string.Empty),
RenderTreeFrame.Attribute(1, "update", change),
RenderTreeFrame.Attribute(2, "value", 5)
}, 0))));
// Assert
Assert.Equal(expectedHtml, result);
}
