public async Task ProcessAsync_CorrectlyInfersButtonElementType()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper(
new DefaultGovUkHtmlGenerator(),
Mock.Of <IUrlHelperFactory>())
{
Type = "button"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("button", output.TagName);
}
public async Task ProcessAsync_PreventDoubleClickSpecifiedForAnchorElementThrowsInvalidOperationException()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper(
new DefaultGovUkHtmlGenerator(),
Mock.Of <IUrlHelperFactory>())
{
PreventDoubleClick = true,
Href = "https://place.com"
};
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(() => tagHelper.ProcessAsync(context, output));
Assert.Equal("Cannot specify the 'prevent-double-click' attribute for 'a' elements.", ex.Message);
}
public async Task ProcessAsync_FormActionSpecifiedAddsAttributeToOutput(string type)
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper(
new DefaultGovUkHtmlGenerator(),
Mock.Of <IUrlHelperFactory>())
{
FormAction = "foo",
Type = type
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("button", output.TagName);
Assert.Equal("foo", output.Attributes["formaction"].Value);
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper();
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var expectedHtml = @"
<button class=""govuk-button"" data-module=""govuk-button"">
Button text
</button>";
AssertEx.HtmlEqual(expectedHtml, output.RenderToString());
}
public async Task ProcessAsync_AnchorDisabledSpecifiedAddsDisabledAttributesToOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper(
new DefaultGovUkHtmlGenerator(),
Mock.Of <IUrlHelperFactory>())
{
Disabled = true,
Href = "https://place.com"
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("a", output.TagName);
Assert.Contains("govuk-button--disabled", output.Attributes["class"].Value.ToString().Split(' '));
}
public async Task ProcessAsync_PreventDoubleClickSpecifiedAddsAttributesToOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper(
new DefaultGovUkHtmlGenerator(),
Mock.Of <IUrlHelperFactory>())
{
PreventDoubleClick = true
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("true", output.Attributes["data-prevent-double-click"].Value);
}
public async Task ProcessAsync_Disabled_AddsDisabledAttributesToOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper()
{
Disabled = true
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var element = output.RenderToElement();
Assert.Contains("govuk-button--disabled", element.ClassList);
Assert.Equal("disabled", element.Attributes["disabled"].Value);
Assert.Equal("true", element.Attributes["aria-disabled"].Value);
}
public async Task ProcessAsync_IsStartButtonAddsIconToOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper(
new DefaultGovUkHtmlGenerator(),
Mock.Of <IUrlHelperFactory>())
{
IsStartButton = true
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Contains("govuk-button--start", output.Attributes["class"].Value.ToString().Split(' '));
Assert.Contains("<svg class=\"govuk-button__start-icon\"", output.Content.GetContent());
}
public void TestTagHelper()
{
//Arrange
var context = new TagHelperContext(
new TagHelperAttributeList(),
new Dictionary <object, object>(),
"myuniqueid");
var output = new TagHelperOutput("button",
new TagHelperAttributeList(), (cahce, encoder) =>
Task.FromResult <TagHelperContent>
(new DefaultTagHelperContent()));
//Act
var tagHelper = new ButtonTagHelper
{
BsButtonColor = "testValue"
};
tagHelper.Process(context, output);
//Assert
Assert.Equal($"btn btn-{tagHelper.BsButtonColor}",
output.Attributes["class"].Value);
}
public async Task ProcessAsync_ButtonElementGeneratesExpectedOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper(
new DefaultGovUkHtmlGenerator(),
Mock.Of <IUrlHelperFactory>());
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var html = output.AsString();
Assert.Equal(
"<button class=\"govuk-button\" data-module=\"govuk-button\" type=\"submit\">" +
"Button text" +
"</button>",
html);
}
/// <summary>
/// Custom implementation
/// </summary>
/// <param name="context"></param>
/// <param name="output"></param>
/// <returns></returns>
public async void CustomProcess(ButtonTagHelper baseClassInstance, TagBuilder builder, TagHelperContext context, TagHelperOutput output)
{
builder.MergeAttribute("data-custommerge", "true");
builder.Attributes.Add("data-customadd", "true");
var childContent = output.Content.IsModified ? output.Content.GetContent() : (await output.GetChildContentAsync()).GetContent();
}
public override void Process(TagHelperContext context, TagHelperOutput output)
{
if (ViewContext.ViewData.Model is ListView listView)
{
if ((listView.ItemsCollection?.Count() ?? 0) > 0)
{
foreach (var currentObject in listView.ItemsCollection)
{
listView.SetCurrentObject(currentObject);
var rowOutput = CreateTagHelperOutput("tr");
rowOutput.Content.AppendHtml("<th scope=\"row\" class=\"col-0 pl-0 pr-0\"> </th>");
//Buttons
if ((listView.Buttons?.Length ?? 0) > 0 && listView.Buttons.Any(x => x.IsApplicable("Inline")))
{
rowOutput.Content.AppendHtml("<th scope=\"row\" class=\"col-fit text-center\">");
var buttonTagHelper = new ButtonTagHelper(UrlHelperFactory, ApplicationService, ExpressionsService)
{
For = listView.Buttons, Target = "Inline", _HideText = "true", CurrentObject = currentObject, ViewContext = ViewContext
};
var buttonOutput = CreateTagHelperOutput("div");
buttonTagHelper.Process(context, buttonOutput);
rowOutput.Content.AppendHtml(buttonOutput.Content.GetContent());
rowOutput.Content.AppendHtml("</th>");
}
//Columns
var columnTagHelper = new TableListViewColumnTagHelper(UrlHelperFactory, ApplicationService, ExpressionsService)
{
For = listView.Columns, IsSubListView = IsSubListView, ViewContext = ViewContext
};
columnTagHelper.Process(context, rowOutput);
var backColor = listView.GetApplicableBackColor(ExpressionsService, currentObject);
output.Content.AppendHtml($"<tr class=\"{backColor}\">{rowOutput.Content.GetContent() }</tr>");
}
listView.ClearCurrentObject();
}
else if (!string.IsNullOrWhiteSpace(listView.MessageOnEmpty))
{
output.Content.AppendHtml(
$"<tr>" +
$"<td class=\"col text-center\" colspan=\"{1 + ((listView?.Buttons?.Length ?? 0) > 0 && listView.Buttons.Any(x => x.IsApplicable("Inline")) ? 1 : 0) + (listView?.Columns?.Length ?? 0)}\">{listView.MessageOnEmpty}</td>" +
"</tr>");
}
}
}
/// <summary>
/// 获取结果
/// </summary>
private string GetResult(ButtonTagHelper button, TagHelperAttributeList contextAttributes = null, TagHelperAttributeList outputAttributes = null, TagHelperContent content = null)
{
var context = new TagHelperContext("", contextAttributes ?? new TagHelperAttributeList(), new Dictionary <object, object>(), Id.Guid());
var output = new TagHelperOutput("", outputAttributes ?? new TagHelperAttributeList(), (useCachedResult, encoder) => Task.FromResult(content ?? new DefaultTagHelperContent()));
button.Process(context, output);
var writer = new StringWriter();
output.WriteTo(writer, HtmlEncoder.Default);
var result = writer.ToString();
_output.WriteLine(result);
return(result);
}
public void Process_ShouldSetBsButtonClass()
{
var context = new TagHelperContext(new TagHelperAttributeList(), new Dictionary <object, object>(), "myuniqueid");
var output = new TagHelperOutput("button", new TagHelperAttributeList(),
(cache, encoder) => Task.FromResult <TagHelperContent>(new DefaultTagHelperContent()));
var testee = new ButtonTagHelper
{
BsButtonColor = "danger"
};
testee.Process(context, output);
output.Attributes["class"].Value.Should().Be($"btn btn-{testee.BsButtonColor}");
}
public void TestButtonTagHelper()
{
//arrange
var context = new TagHelperContext(new TagHelperAttributeList(), new Dictionary <object, object>(), "uniqueid");
var output = new TagHelperOutput("button", new TagHelperAttributeList(), (cache, encoder) => Task.FromResult <TagHelperContent>(new DefaultTagHelperContent()));
//act
var helper = new ButtonTagHelper
{
BsButtonColor = "valueToBeTested"
};
helper.Process(context, output);
//assert
Assert.AreEqual($"btn btn-{helper.BsButtonColor}", output.Attributes["class"].Value);
}
public async Task WhenButtonHelperCalled_ThenCorrectClassCalled()
{
var tagHelper = Substitute.For <IMockViewComponentHelper>();
var componentTag = new ButtonTagHelper(tagHelper)
{
Id = "Id",
AdditionalClass = "AdditionalClass",
Disabled = false,
Text = "ButtonText"
};
string id = componentTag.Id;
string additionalClass = componentTag.AdditionalClass;
bool disabled = componentTag.Disabled;
string text = componentTag.Text;
await ViewComponentTestHelper.CallTagHelper("Button", tagHelper, componentTag);
}
public async Task ProcessAsync_IsStartButton_AddsIconToOutput()
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var tagHelper = new ButtonTagHelper()
{
IsStartButton = true
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
var element = output.RenderToElement();
Assert.Contains("govuk-button--start", element.ClassList);
Assert.Collection(
element.QuerySelectorAll("svg"),
svg => Assert.Contains("govuk-button__start-icon", svg.ClassList));
}
/// <summary>
/// 测试初始化
/// </summary>
public ButtonTagHelperTest(ITestOutputHelper output)
{
_output = output;
_component = new ButtonTagHelper();
}
public async Task ProcessAsync_AspLinkAttributesSpecifiedWithButtonElementTypeGeneratesFormActionAttribute(
string action,
string controller,
string area,
string fragment,
string host,
string page,
string pageHandler,
string protocol,
string route,
IDictionary <string, string> routeValues)
{
// Arrange
var context = new TagHelperContext(
tagName: "govuk-button",
allAttributes: new TagHelperAttributeList(),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"govuk-button",
attributes: new TagHelperAttributeList(),
getChildContentAsync: (useCachedResult, encoder) =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Button text");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var urlHelperFactory = new Mock <IUrlHelperFactory>();
urlHelperFactory
.Setup(mock => mock.GetUrlHelper(It.IsAny <ActionContext>()))
.Returns((ActionContext actionContext) =>
{
var urlHelper = new Mock <IUrlHelper>();
urlHelper.SetupGet(mock => mock.ActionContext).Returns(actionContext);
urlHelper
.Setup(mock => mock.Action(
/*actionContext: */ It.IsAny <UrlActionContext>()))
.Returns("http://place.com");
urlHelper
.Setup(mock => mock.Link(
/*routeName: */ It.IsAny <string>(),
/*values: */ It.IsAny <object>()))
.Returns("http://place.com");
urlHelper
.Setup(mock => mock.RouteUrl(
/*routeContext: */ It.IsAny <UrlRouteContext>()))
.Returns("http://place.com");
return(urlHelper.Object);
});
var viewContext = new ViewContext()
{
RouteData = new Microsoft.AspNetCore.Routing.RouteData()
};
var tagHelper = new ButtonTagHelper(new DefaultGovUkHtmlGenerator(), urlHelperFactory.Object)
{
Action = action,
Area = area,
Controller = controller,
Fragment = fragment,
Host = host,
Page = page,
PageHandler = pageHandler,
Protocol = protocol,
Route = route,
RouteValues = routeValues,
Type = "button",
ViewContext = viewContext
};
// Act
await tagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("button", output.TagName);
Assert.Equal("http://place.com", output.Attributes["formaction"].Value);
}
/// <summary>
/// 测试初始化
/// </summary>
public ButtonTagHelperTest(ITestOutputHelper output)
{
_output = output;
_button = new ButtonTagHelper();
}
