public async Task ProcessAsync_ThrowsIfRouteAndActionOrControllerProvided(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper(new TestableHtmlGenerator(new EmptyModelMetadataProvider()))
{
Route = "Default",
};
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: _ => Task.FromResult <TagHelperContent>(null));
var expectedErrorMessage = "Cannot determine an 'action' attribute for <form>. A <form> with a specified " +
"'asp-route' must not have an 'asp-action' or 'asp-controller' attribute.";
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>(
Enumerable.Empty <IReadOnlyTagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test");
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(
() => formTagHelper.ProcessAsync(context, output));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_SupportsAntiForgeryIfActionIsSpecified(
bool?antiForgery,
string expectedContent)
{
// Arrange
var viewContext = CreateViewContext();
var generator = new Mock <IHtmlGenerator>();
generator.Setup(mock => mock.GenerateAntiForgery(It.IsAny <ViewContext>()))
.Returns(new TagBuilder("input"));
var formTagHelper = new FormTagHelper
{
AntiForgery = antiForgery,
Generator = generator.Object,
ViewContext = viewContext,
};
var output = new TagHelperOutput("form",
attributes: new Dictionary <string, string>
{
{ "aCTiON", "my-action" },
},
content: string.Empty);
var context = new TagHelperContext(allAttributes: new Dictionary <string, object>());
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(new KeyValuePair <string, string>("aCTiON", "my-action"), attribute);
Assert.Equal(expectedContent, output.Content);
}
public async Task ProcessAsync_ThrowsIfActionConflictsWithBoundAttributes(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper
{
Method = "POST"
};
var tagHelperOutput = new TagHelperOutput(
"form",
attributes: new Dictionary <string, string>
{
{ "action", "my-action" },
},
content: string.Empty);
if (propertyName == "asp-route-")
{
tagHelperOutput.Attributes.Add("asp-route-foo", "bar");
}
else
{
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
}
var expectedErrorMessage = "Cannot override the 'action' attribute for <form>. A <form> with a specified " +
"'action' must not have attributes starting with 'asp-route-' or an " +
"'asp-action' or 'asp-controller' attribute.";
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(
() => formTagHelper.ProcessAsync(context: null, output: tagHelperOutput));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_RestoresBoundAttributesIfActionIsSpecified(string htmlAction)
{
// Arrange
var formTagHelper = new FormTagHelper
{
Method = "POST"
};
var output = new TagHelperOutput("form",
attributes: new Dictionary <string, string>
{
{ "aCTiON", htmlAction },
},
content: string.Empty);
var context = new TagHelperContext(
allAttributes: new Dictionary <string, object>()
{
{ "METhod", "POST" }
});
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.Equal(2, output.Attributes.Count);
var attribute = Assert.Single(output.Attributes, kvp => kvp.Key.Equals("aCTiON"));
Assert.Equal(htmlAction, attribute.Value);
attribute = Assert.Single(output.Attributes, kvp => kvp.Key.Equals("METhod"));
Assert.Equal("POST", attribute.Value);
Assert.Empty(output.Content);
}
public async Task ProcessAsync_CallsIntoGenerateFormWithExpectedParameters()
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new Dictionary <string, object>());
var output = new TagHelperOutput(
"form",
attributes: new Dictionary <string, string>(),
content: string.Empty);
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(viewContext, "Index", "Home", null, "POST", null))
.Returns(new TagBuilder("form"))
.Verifiable();
var formTagHelper = new FormTagHelper
{
Action = "Index",
AntiForgery = false,
Controller = "Home",
Generator = generator.Object,
Method = "POST",
ViewContext = viewContext,
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
generator.Verify();
Assert.Equal("form", output.TagName);
Assert.Empty(output.Attributes);
Assert.Empty(output.Content);
}
public async Task ProcessAsync_ThrowsIfActionConflictsWithBoundAttributes(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper(new TestableHtmlGenerator(new EmptyModelMetadataProvider()));
var tagHelperOutput = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList
{
{ "action", "my-action" },
});
if (propertyName == "asp-route-")
{
formTagHelper.RouteValues.Add("name", "value");
}
else
{
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
}
var expectedErrorMessage = "Cannot override the 'action' attribute for <form>. A <form> with a specified " +
"'action' must not have attributes starting with 'asp-route-' or an " +
"'asp-action' or 'asp-controller' or 'asp-route' attribute.";
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(
() => formTagHelper.ProcessAsync(context: null, output: tagHelperOutput));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_CallsIntoGenerateRouteFormWithExpectedParameters()
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>(
Enumerable.Empty <IReadOnlyTagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateRouteForm(
viewContext,
"Default",
It.Is <Dictionary <string, object> >(m => string.Equals(m["name"], "value")),
null,
null))
.Returns(new TagBuilder("form"))
.Verifiable();
var formTagHelper = new FormTagHelper(generator.Object)
{
Antiforgery = false,
Route = "Default",
ViewContext = viewContext,
RouteValues =
{
{ "name", "value" },
},
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
generator.Verify();
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreElement.GetContent());
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
Assert.Empty(output.PostElement.GetContent());
}
public async Task ProcessAsync_GeneratesAntiForgeryCorrectly(
bool?antiForgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new Dictionary <string, object>(),
items: new Dictionary <object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var output = new TagHelperOutput(
"form",
attributes: new Dictionary <string, object>());
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny <ViewContext>(),
It.IsAny <string>(),
It.IsAny <string>(),
It.IsAny <object>(),
It.IsAny <string>(),
It.IsAny <object>()))
.Returns(new TagBuilder("form", new HtmlEncoder()));
generator.Setup(mock => mock.GenerateAntiForgery(viewContext))
.Returns(new TagBuilder("input", new HtmlEncoder()));
var formTagHelper = new FormTagHelper
{
Action = "Index",
AntiForgery = antiForgery,
Generator = generator.Object,
ViewContext = viewContext,
};
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.False(output.SelfClosing);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_GeneratesAntiforgeryCorrectly(
bool?antiforgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>(
Enumerable.Empty <IReadOnlyTagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny <ViewContext>(),
It.IsAny <string>(),
It.IsAny <string>(),
It.IsAny <object>(),
It.IsAny <string>(),
It.IsAny <object>()))
.Returns(new TagBuilder("form"));
generator.Setup(mock => mock.GenerateAntiforgery(viewContext))
.Returns(new HtmlString("<input />"));
var formTagHelper = new FormTagHelper(generator.Object)
{
Action = "Index",
Antiforgery = antiforgery,
ViewContext = viewContext,
};
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_CallsIntoGenerateFormWithExpectedParameters()
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>(
Enumerable.Empty <IReadOnlyTagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList());
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
viewContext,
"Index",
"Home",
It.IsAny <IDictionary <string, object> >(),
null,
null))
.Returns(new TagBuilder("form", new CommonTestEncoder()))
.Verifiable();
var formTagHelper = new FormTagHelper(generator.Object)
{
Action = "Index",
AntiForgery = false,
Controller = "Home",
ViewContext = viewContext,
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
generator.Verify();
Assert.Equal("form", output.TagName);
Assert.False(output.SelfClosing);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreElement.GetContent());
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
}
public async Task ProcessAsync_SupportsAntiforgeryIfActionIsSpecified(
bool?antiforgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var generator = new Mock <IHtmlGenerator>();
generator.Setup(mock => mock.GenerateAntiforgery(It.IsAny <ViewContext>()))
.Returns(new HtmlString("<input />"));
var formTagHelper = new FormTagHelper(generator.Object)
{
Antiforgery = antiforgery,
ViewContext = viewContext,
};
var output = new TagHelperOutput(
tagName: "form",
attributes: new TagHelperAttributeList
{
{ "aCTiON", "my-action" },
},
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>(
Enumerable.Empty <IReadOnlyTagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test");
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(new TagHelperAttribute("aCTiON", "my-action"), attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_SupportsAntiForgeryIfActionIsSpecified(
bool?antiForgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var generator = new Mock <IHtmlGenerator>();
generator.Setup(mock => mock.GenerateAntiForgery(It.IsAny <ViewContext>()))
.Returns(new TagBuilder("input", new HtmlEncoder()));
var formTagHelper = new FormTagHelper
{
AntiForgery = antiForgery,
Generator = generator.Object,
ViewContext = viewContext,
};
var output = new TagHelperOutput("form",
attributes: new Dictionary <string, object>
{
{ "aCTiON", "my-action" },
});
var context = new TagHelperContext(
allAttributes: new Dictionary <string, object>(),
items: new Dictionary <object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.False(output.SelfClosing);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(new KeyValuePair <string, object>("aCTiON", "my-action"), attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_ThrowsIfRouteAndActionOrControllerProvided(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper(new TestableHtmlGenerator(new EmptyModelMetadataProvider()))
{
Route = "Default",
};
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList());
var expectedErrorMessage = "Cannot determine an 'action' attribute for <form>. A <form> with a specified " +
"'asp-route' must not have an 'asp-action' or 'asp-controller' attribute.";
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(
() => formTagHelper.ProcessAsync(context: null, output: output));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_GeneratesAntiForgeryCorrectly(bool?antiForgery, string expectedContent)
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new Dictionary <string, object>());
var output = new TagHelperOutput(
"form",
attributes: new Dictionary <string, string>(),
content: string.Empty);
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny <ViewContext>(),
It.IsAny <string>(),
It.IsAny <string>(),
It.IsAny <object>(),
It.IsAny <string>(),
It.IsAny <object>()))
.Returns(new TagBuilder("form"));
generator.Setup(mock => mock.GenerateAntiForgery(viewContext))
.Returns(new TagBuilder("input"));
var formTagHelper = new FormTagHelper
{
Action = "Index",
AntiForgery = antiForgery,
Generator = generator.Object,
ViewContext = viewContext,
};
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.Empty(output.Attributes);
Assert.Equal(expectedContent, output.Content);
}
public async Task ProcessAsync_ThrowsIfActionIsUrlWithSpecifiedController()
{
// Arrange
var formTagHelper = new FormTagHelper
{
Action = "http://www.contoso.com",
Controller = "Home",
Method = "POST"
};
var expectedErrorMessage = "Cannot determine an 'action' for <form>. A <form> with a URL-based 'action' " +
"must not have attributes starting with 'route-' or a 'controller' attribute.";
var tagHelperOutput = new TagHelperOutput(
"form",
attributes: new Dictionary <string, string>(),
content: string.Empty);
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(
() => formTagHelper.ProcessAsync(context: null, output: tagHelperOutput));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_ThrowsIfActionConflictsWithBoundAttributes(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper(new TestableHtmlGenerator(new EmptyModelMetadataProvider()));
var tagHelperOutput = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList
{
{ "action", "my-action" },
},
getChildContentAsync: _ => Task.FromResult <TagHelperContent>(null));
if (propertyName == "asp-route-")
{
formTagHelper.RouteValues.Add("name", "value");
}
else
{
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
}
var expectedErrorMessage = "Cannot override the 'action' attribute for <form>. A <form> with a specified " +
"'action' must not have attributes starting with 'asp-route-' or an " +
"'asp-action' or 'asp-controller' or 'asp-route' attribute.";
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>(
Enumerable.Empty <IReadOnlyTagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test");
// Act & Assert
var ex = await Assert.ThrowsAsync <InvalidOperationException>(
() => formTagHelper.ProcessAsync(context, tagHelperOutput));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var expectedTagName = "not-form";
var metadataProvider = new DataAnnotationsModelMetadataProvider();
var tagHelperContext = new TagHelperContext(
allAttributes: new Dictionary <string, object>
{
{ "id", "myform" },
{ "asp-route-foo", "bar" },
{ "asp-action", "index" },
{ "asp-controller", "home" },
{ "method", "post" },
{ "asp-anti-forgery", true }
});
var output = new TagHelperOutput(
expectedTagName,
attributes: new Dictionary <string, string>
{
{ "id", "myform" },
{ "asp-route-foo", "bar" },
},
content: "Something");
var urlHelper = new Mock <IUrlHelper>();
urlHelper
.Setup(mock => mock.Action(It.IsAny <string>(),
It.IsAny <string>(),
It.IsAny <object>(),
It.IsAny <string>(),
It.IsAny <string>(),
It.IsAny <string>()))
.Returns("home/index");
var htmlGenerator = new TestableHtmlGenerator(metadataProvider, urlHelper.Object);
var viewContext = TestableHtmlGenerator.GetViewContext(model: null,
htmlGenerator: htmlGenerator,
metadataProvider: metadataProvider);
var expectedContent = "Something" + htmlGenerator.GenerateAntiForgery(viewContext)
.ToString(TagRenderMode.SelfClosing);
var formTagHelper = new FormTagHelper
{
Action = "index",
AntiForgery = true,
Controller = "home",
Generator = htmlGenerator,
Method = "post",
ViewContext = viewContext,
};
// Act
await formTagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(3, output.Attributes.Count);
var attribute = Assert.Single(output.Attributes, kvp => kvp.Key.Equals("id"));
Assert.Equal("myform", attribute.Value);
attribute = Assert.Single(output.Attributes, kvp => kvp.Key.Equals("method"));
Assert.Equal("post", attribute.Value);
attribute = Assert.Single(output.Attributes, kvp => kvp.Key.Equals("action"));
Assert.Equal("home/index", attribute.Value);
Assert.Equal(expectedContent, output.Content);
Assert.Equal(expectedTagName, output.TagName);
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var expectedTagName = "not-form";
var metadataProvider = new TestModelMetadataProvider();
var tagHelperContext = new TagHelperContext(
allAttributes: new TagHelperAttributeList
{
{ "id", "myform" },
{ "asp-route-name", "value" },
{ "asp-action", "index" },
{ "asp-controller", "home" },
{ "method", "post" },
{ "asp-antiforgery", true }
},
items: new Dictionary <object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
expectedTagName,
attributes: new TagHelperAttributeList
{
{ "id", "myform" },
},
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something Else");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
output.PostContent.SetContent("Something");
var urlHelper = new Mock <IUrlHelper>();
urlHelper
.Setup(mock => mock.Action(It.IsAny <UrlActionContext>())).Returns("home/index");
var htmlGenerator = new TestableHtmlGenerator(metadataProvider, urlHelper.Object);
var viewContext = TestableHtmlGenerator.GetViewContext(model: null,
htmlGenerator: htmlGenerator,
metadataProvider: metadataProvider);
var expectedPostContent = "Something" +
HtmlContentUtilities.HtmlContentToString(
htmlGenerator.GenerateAntiforgery(viewContext),
new NullTestEncoder());
var formTagHelper = new FormTagHelper(htmlGenerator)
{
Action = "index",
Antiforgery = true,
Controller = "home",
ViewContext = viewContext,
RouteValues =
{
{ "name", "value" },
},
};
// Act
await formTagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(3, output.Attributes.Count);
var attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("id"));
Assert.Equal("myform", attribute.Value);
attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("method"));
Assert.Equal("post", attribute.Value);
attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("action"));
Assert.Equal("home/index", attribute.Value);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
Assert.Equal(expectedTagName, output.TagName);
}
public async Task ProcessAsync_BindsRouteValues()
{
// Arrange
var testViewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList <IReadOnlyTagHelperAttribute>(
Enumerable.Empty <IReadOnlyTagHelperAttribute>()),
items: new Dictionary <object, object>(),
uniqueId: "test");
var expectedAttribute = new TagHelperAttribute("asp-ROUTEE-NotRoute", "something");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
output.Attributes.Add(expectedAttribute);
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny <ViewContext>(),
It.IsAny <string>(),
It.IsAny <string>(),
It.IsAny <object>(),
It.IsAny <string>(),
It.IsAny <object>()))
.Callback <ViewContext, string, string, object, string, object>(
(viewContext, actionName, controllerName, routeValues, method, htmlAttributes) =>
{
// Fixes Roslyn bug with lambdas
generator.ToString();
var routeValueDictionary = (Dictionary <string, object>)routeValues;
Assert.Equal(2, routeValueDictionary.Count);
var routeValue = Assert.Single(routeValueDictionary, attr => attr.Key.Equals("val"));
Assert.Equal("hello", routeValue.Value);
routeValue = Assert.Single(routeValueDictionary, attr => attr.Key.Equals("-Name"));
Assert.Equal("Value", routeValue.Value);
})
.Returns(new TagBuilder("form"))
.Verifiable();
var formTagHelper = new FormTagHelper(generator.Object)
{
Action = "Index",
Antiforgery = false,
ViewContext = testViewContext,
RouteValues =
{
{ "val", "hello" },
{ "-Name", "Value" },
},
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(expectedAttribute, attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
generator.Verify();
}
public async Task ProcessAsync_ThrowsIfRouteAndActionOrControllerProvided(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper(new TestableHtmlGenerator(new EmptyModelMetadataProvider()))
{
Route = "Default",
};
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList());
var expectedErrorMessage = "Cannot determine an 'action' attribute for <form>. A <form> with a specified " +
"'asp-route' must not have an 'asp-action' or 'asp-controller' attribute.";
// Act & Assert
var ex = await Assert.ThrowsAsync<InvalidOperationException>(
() => formTagHelper.ProcessAsync(context: null, output: output));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_GeneratesAntiForgeryCorrectly(
bool? antiForgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new Dictionary<string, object>(),
items: new Dictionary<object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var output = new TagHelperOutput(
"form",
attributes: new Dictionary<string, object>());
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny<ViewContext>(),
It.IsAny<string>(),
It.IsAny<string>(),
It.IsAny<object>(),
It.IsAny<string>(),
It.IsAny<object>()))
.Returns(new TagBuilder("form", new HtmlEncoder()));
generator.Setup(mock => mock.GenerateAntiForgery(viewContext))
.Returns(new TagBuilder("input", new HtmlEncoder()));
var formTagHelper = new FormTagHelper
{
Action = "Index",
AntiForgery = antiForgery,
Generator = generator.Object,
ViewContext = viewContext,
};
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.False(output.SelfClosing);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_ThrowsIfActionConflictsWithBoundAttributes(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper();
var tagHelperOutput = new TagHelperOutput(
"form",
attributes: new Dictionary<string, object>
{
{ "action", "my-action" },
});
if (propertyName == "asp-route-")
{
tagHelperOutput.Attributes.Add("asp-route-foo", "bar");
}
else
{
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
}
var expectedErrorMessage = "Cannot override the 'action' attribute for <form>. A <form> with a specified " +
"'action' must not have attributes starting with 'asp-route-' or an " +
"'asp-action' or 'asp-controller' attribute.";
// Act & Assert
var ex = await Assert.ThrowsAsync<InvalidOperationException>(
() => formTagHelper.ProcessAsync(context: null, output: tagHelperOutput));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_ThrowsIfActionConflictsWithBoundAttributes(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper(new TestableHtmlGenerator(new EmptyModelMetadataProvider()));
var tagHelperOutput = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList
{
{ "action", "my-action" },
},
getChildContentAsync: _ => Task.FromResult<TagHelperContent>(null));
if (propertyName == "asp-route-")
{
formTagHelper.RouteValues.Add("name", "value");
}
else
{
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
}
var expectedErrorMessage = "Cannot override the 'action' attribute for <form>. A <form> with a specified " +
"'action' must not have attributes starting with 'asp-route-' or an " +
"'asp-action' or 'asp-controller' or 'asp-route' attribute.";
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
// Act & Assert
var ex = await Assert.ThrowsAsync<InvalidOperationException>(
() => formTagHelper.ProcessAsync(context, tagHelperOutput));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_CallsIntoGenerateRouteFormWithExpectedParameters()
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateRouteForm(
viewContext,
"Default",
It.Is<Dictionary<string, object>>(m => string.Equals(m["name"], "value")),
null,
null))
.Returns(new TagBuilder("form"))
.Verifiable();
var formTagHelper = new FormTagHelper(generator.Object)
{
Antiforgery = false,
Route = "Default",
ViewContext = viewContext,
RouteValues =
{
{ "name", "value" },
},
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
generator.Verify();
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreElement.GetContent());
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
Assert.Empty(output.PostElement.GetContent());
}
public async Task ProcessAsync_BindsRouteValues()
{
// Arrange
var testViewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
var expectedAttribute = new TagHelperAttribute("asp-ROUTEE-NotRoute", "something");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
output.Attributes.Add(expectedAttribute);
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny<ViewContext>(),
It.IsAny<string>(),
It.IsAny<string>(),
It.IsAny<object>(),
It.IsAny<string>(),
It.IsAny<object>()))
.Callback<ViewContext, string, string, object, string, object>(
(viewContext, actionName, controllerName, routeValues, method, htmlAttributes) =>
{
// Fixes Roslyn bug with lambdas
generator.ToString();
var routeValueDictionary = (Dictionary<string, object>)routeValues;
Assert.Equal(2, routeValueDictionary.Count);
var routeValue = Assert.Single(routeValueDictionary, attr => attr.Key.Equals("val"));
Assert.Equal("hello", routeValue.Value);
routeValue = Assert.Single(routeValueDictionary, attr => attr.Key.Equals("-Name"));
Assert.Equal("Value", routeValue.Value);
})
.Returns(new TagBuilder("form"))
.Verifiable();
var formTagHelper = new FormTagHelper(generator.Object)
{
Action = "Index",
Antiforgery = false,
ViewContext = testViewContext,
RouteValues =
{
{ "val", "hello" },
{ "-Name", "Value" },
},
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag ,output.TagMode);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(expectedAttribute, attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
generator.Verify();
}
public async Task ProcessAsync_BindsRouteValuesFromTagHelperOutput()
{
// Arrange
var testViewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new Dictionary <string, object>(),
items: new Dictionary <object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return(Task.FromResult <TagHelperContent>(tagHelperContent));
});
var expectedAttribute = new KeyValuePair <string, object>("asp-ROUTEE-NotRoute", "something");
var output = new TagHelperOutput(
"form",
attributes: new Dictionary <string, object>()
{
{ "asp-route-val", "hello" },
{ "asp-roUte--Foo", "bar" }
});
output.Attributes.Add(expectedAttribute);
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny <ViewContext>(),
It.IsAny <string>(),
It.IsAny <string>(),
It.IsAny <object>(),
It.IsAny <string>(),
It.IsAny <object>()))
.Callback <ViewContext, string, string, object, string, object>(
(viewContext, actionName, controllerName, routeValues, method, htmlAttributes) =>
{
// Fixes Roslyn bug with lambdas
generator.ToString();
var routeValueDictionary = (Dictionary <string, object>)routeValues;
Assert.Equal(2, routeValueDictionary.Count);
var routeValue = Assert.Single(routeValueDictionary, kvp => kvp.Key.Equals("val"));
Assert.Equal("hello", routeValue.Value);
routeValue = Assert.Single(routeValueDictionary, kvp => kvp.Key.Equals("-Foo"));
Assert.Equal("bar", routeValue.Value);
})
.Returns(new TagBuilder("form", new HtmlEncoder()))
.Verifiable();
var formTagHelper = new FormTagHelper
{
Action = "Index",
AntiForgery = false,
Generator = generator.Object,
ViewContext = testViewContext,
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
Assert.Equal("form", output.TagName);
Assert.False(output.SelfClosing);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(expectedAttribute, attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
generator.Verify();
}
public async Task ProcessAsync_GeneratesAntiforgeryCorrectly(
bool? antiforgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny<ViewContext>(),
It.IsAny<string>(),
It.IsAny<string>(),
It.IsAny<object>(),
It.IsAny<string>(),
It.IsAny<object>()))
.Returns(new TagBuilder("form"));
generator.Setup(mock => mock.GenerateAntiforgery(viewContext))
.Returns(new HtmlString("<input />"));
var formTagHelper = new FormTagHelper(generator.Object)
{
Action = "Index",
Antiforgery = antiforgery,
ViewContext = viewContext,
};
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_BindsRouteValuesFromTagHelperOutput()
{
// Arrange
var testViewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new Dictionary<string, object>(),
items: new Dictionary<object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var expectedAttribute = new KeyValuePair<string, object>("asp-ROUTEE-NotRoute", "something");
var output = new TagHelperOutput(
"form",
attributes: new Dictionary<string, object>()
{
{ "asp-route-val", "hello" },
{ "asp-roUte--Foo", "bar" }
});
output.Attributes.Add(expectedAttribute);
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny<ViewContext>(),
It.IsAny<string>(),
It.IsAny<string>(),
It.IsAny<object>(),
It.IsAny<string>(),
It.IsAny<object>()))
.Callback<ViewContext, string, string, object, string, object>(
(viewContext, actionName, controllerName, routeValues, method, htmlAttributes) =>
{
// Fixes Roslyn bug with lambdas
generator.ToString();
var routeValueDictionary = (Dictionary<string, object>)routeValues;
Assert.Equal(2, routeValueDictionary.Count);
var routeValue = Assert.Single(routeValueDictionary, kvp => kvp.Key.Equals("val"));
Assert.Equal("hello", routeValue.Value);
routeValue = Assert.Single(routeValueDictionary, kvp => kvp.Key.Equals("-Foo"));
Assert.Equal("bar", routeValue.Value);
})
.Returns(new TagBuilder("form", new HtmlEncoder()))
.Verifiable();
var formTagHelper = new FormTagHelper
{
Action = "Index",
AntiForgery = false,
Generator = generator.Object,
ViewContext = testViewContext,
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
Assert.Equal("form", output.TagName);
Assert.False(output.SelfClosing);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(expectedAttribute, attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
generator.Verify();
}
public async Task ProcessAsync_GeneratesExpectedOutput()
{
// Arrange
var expectedTagName = "not-form";
var metadataProvider = new TestModelMetadataProvider();
var tagHelperContext = new TagHelperContext(
allAttributes: new TagHelperAttributeList
{
{ "id", "myform" },
{ "asp-route-name", "value" },
{ "asp-action", "index" },
{ "asp-controller", "home" },
{ "method", "post" },
{ "asp-antiforgery", true }
},
items: new Dictionary<object, object>(),
uniqueId: "test");
var output = new TagHelperOutput(
expectedTagName,
attributes: new TagHelperAttributeList
{
{ "id", "myform" },
},
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something Else");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
output.PostContent.SetContent("Something");
var urlHelper = new Mock<IUrlHelper>();
urlHelper
.Setup(mock => mock.Action(It.IsAny<UrlActionContext>())).Returns("home/index");
var htmlGenerator = new TestableHtmlGenerator(metadataProvider, urlHelper.Object);
var viewContext = TestableHtmlGenerator.GetViewContext(
model: null,
htmlGenerator: htmlGenerator,
metadataProvider: metadataProvider);
var expectedPostContent = "Something" +
HtmlContentUtilities.HtmlContentToString(
htmlGenerator.GenerateAntiforgery(viewContext),
HtmlEncoder.Default);
var formTagHelper = new FormTagHelper(htmlGenerator)
{
Action = "index",
Antiforgery = true,
Controller = "home",
ViewContext = viewContext,
RouteValues =
{
{ "name", "value" },
},
};
// Act
await formTagHelper.ProcessAsync(tagHelperContext, output);
// Assert
Assert.Equal(3, output.Attributes.Count);
var attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("id"));
Assert.Equal("myform", attribute.Value);
attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("method"));
Assert.Equal("post", attribute.Value);
attribute = Assert.Single(output.Attributes, attr => attr.Name.Equals("action"));
Assert.Equal("home/index", attribute.Value);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
Assert.Equal(expectedTagName, output.TagName);
}
public async Task ProcessAsync_CallsIntoGenerateFormWithExpectedParameters()
{
// Arrange
var viewContext = CreateViewContext();
var context = new TagHelperContext(
allAttributes: new Dictionary<string, object>(),
items: new Dictionary<object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var output = new TagHelperOutput(
"form",
attributes: new Dictionary<string, object>());
var generator = new Mock<IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(viewContext, "Index", "Home", null, null, null))
.Returns(new TagBuilder("form", new HtmlEncoder()))
.Verifiable();
var formTagHelper = new FormTagHelper
{
Action = "Index",
AntiForgery = false,
Controller = "Home",
Generator = generator.Object,
ViewContext = viewContext,
};
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
generator.Verify();
Assert.Equal("form", output.TagName);
Assert.False(output.SelfClosing);
Assert.Empty(output.Attributes);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Empty(output.PostContent.GetContent());
}
public async Task ProcessAsync_SupportsAntiforgeryIfActionIsSpecified(
bool? antiforgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var generator = new Mock<IHtmlGenerator>();
generator.Setup(mock => mock.GenerateAntiforgery(It.IsAny<ViewContext>()))
.Returns(new HtmlString("<input />"));
var formTagHelper = new FormTagHelper(generator.Object)
{
Antiforgery = antiforgery,
ViewContext = viewContext,
};
var output = new TagHelperOutput(
tagName: "form",
attributes: new TagHelperAttributeList
{
{ "aCTiON", "my-action" },
},
getChildContentAsync: useCachedResult =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.Equal(TagMode.StartTagAndEndTag, output.TagMode);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(new TagHelperAttribute("aCTiON", "my-action"), attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_SupportsAntiForgeryIfActionIsSpecified(
bool? antiForgery,
string expectedPostContent)
{
// Arrange
var viewContext = CreateViewContext();
var generator = new Mock<IHtmlGenerator>();
generator.Setup(mock => mock.GenerateAntiForgery(It.IsAny<ViewContext>()))
.Returns(new TagBuilder("input", new HtmlEncoder()));
var formTagHelper = new FormTagHelper
{
AntiForgery = antiForgery,
Generator = generator.Object,
ViewContext = viewContext,
};
var output = new TagHelperOutput("form",
attributes: new Dictionary<string, object>
{
{ "aCTiON", "my-action" },
});
var context = new TagHelperContext(
allAttributes: new Dictionary<string, object>(),
items: new Dictionary<object, object>(),
uniqueId: "test",
getChildContentAsync: () =>
{
var tagHelperContent = new DefaultTagHelperContent();
tagHelperContent.SetContent("Something");
return Task.FromResult<TagHelperContent>(tagHelperContent);
});
// Act
await formTagHelper.ProcessAsync(context, output);
// Assert
Assert.Equal("form", output.TagName);
Assert.False(output.SelfClosing);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(new KeyValuePair<string, object>("aCTiON", "my-action"), attribute);
Assert.Empty(output.PreContent.GetContent());
Assert.True(output.Content.IsEmpty);
Assert.Equal(expectedPostContent, output.PostContent.GetContent());
}
public async Task ProcessAsync_ThrowsIfRouteAndActionOrControllerProvided(string propertyName)
{
// Arrange
var formTagHelper = new FormTagHelper(new TestableHtmlGenerator(new EmptyModelMetadataProvider()))
{
Route = "Default",
};
typeof(FormTagHelper).GetProperty(propertyName).SetValue(formTagHelper, "Home");
var output = new TagHelperOutput(
"form",
attributes: new TagHelperAttributeList(),
getChildContentAsync: _ => Task.FromResult<TagHelperContent>(null));
var expectedErrorMessage = "Cannot determine an 'action' attribute for <form>. A <form> with a specified " +
"'asp-route' must not have an 'asp-action' or 'asp-controller' attribute.";
var context = new TagHelperContext(
allAttributes: new ReadOnlyTagHelperAttributeList<IReadOnlyTagHelperAttribute>(
Enumerable.Empty<IReadOnlyTagHelperAttribute>()),
items: new Dictionary<object, object>(),
uniqueId: "test");
// Act & Assert
var ex = await Assert.ThrowsAsync<InvalidOperationException>(
() => formTagHelper.ProcessAsync(context, output));
Assert.Equal(expectedErrorMessage, ex.Message);
}
public async Task ProcessAsync_BindsRouteValuesFromTagHelperOutput()
{
// Arrange
var testViewContext = CreateViewContext();
var formTagHelper = new FormTagHelper
{
Action = "Index",
AntiForgery = false
};
var context = new TagHelperContext(
allAttributes: new Dictionary <string, object>());
var expectedAttribute = new KeyValuePair <string, string>("ROUTEE-NotRoute", "something");
var output = new TagHelperOutput(
"form",
attributes: new Dictionary <string, string>()
{
{ "route-val", "hello" },
{ "roUte--Foo", "bar" }
},
content: string.Empty);
output.Attributes.Add(expectedAttribute);
var generator = new Mock <IHtmlGenerator>(MockBehavior.Strict);
generator
.Setup(mock => mock.GenerateForm(
It.IsAny <ViewContext>(),
It.IsAny <string>(),
It.IsAny <string>(),
It.IsAny <object>(),
It.IsAny <string>(),
It.IsAny <object>()))
.Callback <ViewContext, string, string, object, string, object>(
(viewContext, actionName, controllerName, routeValues, method, htmlAttributes) =>
{
// Fixes Roslyn bug with lambdas
generator.ToString();
var routeValueDictionary = (Dictionary <string, object>)routeValues;
Assert.Equal(2, routeValueDictionary.Count);
var routeValue = Assert.Single(routeValueDictionary, kvp => kvp.Key.Equals("val"));
Assert.Equal("hello", routeValue.Value);
routeValue = Assert.Single(routeValueDictionary, kvp => kvp.Key.Equals("-Foo"));
Assert.Equal("bar", routeValue.Value);
})
.Returns(new TagBuilder("form"))
.Verifiable();
formTagHelper.ViewContext = testViewContext;
formTagHelper.Generator = generator.Object;
// Act & Assert
await formTagHelper.ProcessAsync(context, output);
Assert.Equal("form", output.TagName);
var attribute = Assert.Single(output.Attributes);
Assert.Equal(expectedAttribute, attribute);
Assert.Empty(output.Content);
generator.Verify();
}