public async Task RunAsync_CallsInitPriorToProcessAsync()
{
// Arrange
var runner = new TagHelperRunner();
var executionContext = new TagHelperExecutionContext("p", TagMode.StartTagAndEndTag);
var incrementer = 0;
var callbackTagHelper = new CallbackTagHelper(
initCallback: () =>
{
Assert.Equal(0, incrementer);
incrementer++;
},
processAsyncCallback: () =>
{
Assert.Equal(1, incrementer);
incrementer++;
});
executionContext.Add(callbackTagHelper);
// Act
await runner.RunAsync(executionContext);
// Assert
Assert.Equal(2, incrementer);
}
public async Task RunAsync_OrdersTagHelpers(
int[] tagHelperOrders,
int[] expectedTagHelperOrders)
{
// Arrange
var runner = new TagHelperRunner();
var executionContext = new TagHelperExecutionContext("p", TagMode.StartTagAndEndTag);
var processOrder = new List <int>();
foreach (var order in tagHelperOrders)
{
var orderedTagHelper = new OrderedTagHelper(order)
{
ProcessOrderTracker = processOrder
};
executionContext.Add(orderedTagHelper);
}
// Act
await runner.RunAsync(executionContext);
// Assert
Assert.Equal(expectedTagHelperOrders, processOrder);
}
public async Task Process_AddsHiddenInputTag_FromEndOfFormContent_WithCachedBody(
List<TagBuilder> tagBuilderList,
string expectedOutput)
{
// Arrange
var viewContext = new ViewContext();
var runner = new TagHelperRunner();
var tagHelperExecutionContext = new TagHelperExecutionContext(
"form",
TagMode.StartTagAndEndTag,
items: new Dictionary<object, object>(),
uniqueId: string.Empty,
executeChildContentAsync: () =>
{
foreach (var item in tagBuilderList)
{
viewContext.FormContext.EndOfFormContent.Add(item);
}
return Task.FromResult(true);
},
startTagHelperWritingScope: _ => { },
endTagHelperWritingScope: () => new DefaultTagHelperContent());
// This TagHelper will pre-execute the child content forcing the body to be cached.
tagHelperExecutionContext.Add(new ChildContentInvoker());
tagHelperExecutionContext.Add(new RenderAtEndOfFormTagHelper
{
ViewContext = viewContext
});
// Act
await runner.RunAsync(tagHelperExecutionContext);
// Assert
Assert.Equal(expectedOutput, tagHelperExecutionContext.Output.PostContent.GetContent());
}
public async Task RunAsync_OrdersTagHelpers(
int[] tagHelperOrders,
int[] expectedTagHelperOrders)
{
// Arrange
var runner = new TagHelperRunner();
var executionContext = new TagHelperExecutionContext("p", TagMode.StartTagAndEndTag);
var processOrder = new List<int>();
foreach (var order in tagHelperOrders)
{
var orderedTagHelper = new OrderedTagHelper(order)
{
ProcessOrderTracker = processOrder
};
executionContext.Add(orderedTagHelper);
}
// Act
await runner.RunAsync(executionContext);
// Assert
Assert.Equal(expectedTagHelperOrders, processOrder);
}
public async Task RunAsync_ConfiguresTagHelperContextWithExecutionContextsItems()
{
// Arrange
var runner = new TagHelperRunner();
var executionContext = new TagHelperExecutionContext("p", TagMode.StartTagAndEndTag);
var tagHelper = new ContextInspectingTagHelper();
executionContext.Add(tagHelper);
// Act
await runner.RunAsync(executionContext);
// Assert
Assert.NotNull(tagHelper.ContextProcessedWith);
Assert.Same(tagHelper.ContextProcessedWith.Items, executionContext.Items);
}
public async Task RunAsync_AllowsDataRetrievalFromTagHelperContext()
{
// Arrange
var runner = new TagHelperRunner();
var executionContext = new TagHelperExecutionContext("p", TagMode.StartTagAndEndTag);
var tagHelper = new TagHelperContextTouchingTagHelper();
// Act
executionContext.Add(tagHelper);
executionContext.AddTagHelperAttribute("foo", true, HtmlAttributeValueStyle.DoubleQuotes);
await runner.RunAsync(executionContext);
// Assert
Assert.Equal("True", executionContext.Output.Attributes["foo"].Value);
}
public async Task RunAsync_AllowsModificationOfTagHelperOutput()
{
// Arrange
var runner = new TagHelperRunner();
var executionContext = new TagHelperExecutionContext("p", TagMode.StartTagAndEndTag);
var executableTagHelper = new ExecutableTagHelper();
// Act
executionContext.Add(executableTagHelper);
executionContext.AddHtmlAttribute("class", "btn", HtmlAttributeValueStyle.DoubleQuotes);
await runner.RunAsync(executionContext);
// Assert
var output = executionContext.Output;
Assert.Equal("foo", output.TagName);
Assert.Equal("somethingelse", output.Attributes["class"].Value);
Assert.Equal("world", output.Attributes["hello"].Value);
Assert.Equal(TagMode.SelfClosing, output.TagMode);
}
public async Task RunAsync_ProcessesAllTagHelpers()
{
// Arrange
var runner = new TagHelperRunner();
var executionContext = new TagHelperExecutionContext("p", TagMode.StartTagAndEndTag);
var executableTagHelper1 = new ExecutableTagHelper();
var executableTagHelper2 = new ExecutableTagHelper();
// Act
executionContext.Add(executableTagHelper1);
executionContext.Add(executableTagHelper2);
await runner.RunAsync(executionContext);
// Assert
Assert.True(executableTagHelper1.Processed);
Assert.True(executableTagHelper2.Processed);
}
public async Task RunAsync_SetsTagHelperOutputTagMode(TagMode tagMode)
{
// Arrange
var runner = new TagHelperRunner();
var executionContext = new TagHelperExecutionContext("p", tagMode);
var tagHelper = new TagHelperContextTouchingTagHelper();
executionContext.Add(tagHelper);
executionContext.AddTagHelperAttribute("foo", true, HtmlAttributeValueStyle.DoubleQuotes);
// Act
await runner.RunAsync(executionContext);
// Assert
Assert.Equal(tagMode, executionContext.Output.TagMode);
}
