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_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_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);
}
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_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_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_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 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_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_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));
}
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);
}
