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linux-packaging-mono/external/aspnetwebstack/test/System.Web.Mvc.Test/Html/Test/LabelExtensionsTest.cs

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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Linq.Expressions;
using Moq;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Mvc.Html.Test
{
public class LabelExtensionsTest
{
Mock<ModelMetadataProvider> metadataProvider;
Mock<ModelMetadata> metadata;
ViewDataDictionary viewData;
Mock<ViewContext> viewContext;
Mock<IViewDataContainer> viewDataContainer;
HtmlHelper<object> html;
public LabelExtensionsTest()
{
metadataProvider = new Mock<ModelMetadataProvider>();
metadata = new Mock<ModelMetadata>(metadataProvider.Object, null, null, typeof(object), null);
viewData = new ViewDataDictionary();
viewContext = new Mock<ViewContext>();
viewContext.Setup(c => c.ViewData).Returns(viewData);
viewDataContainer = new Mock<IViewDataContainer>();
viewDataContainer.Setup(c => c.ViewData).Returns(viewData);
html = new HtmlHelper<object>(viewContext.Object, viewDataContainer.Object);
metadataProvider.Setup(p => p.GetMetadataForProperties(It.IsAny<object>(), It.IsAny<Type>()))
.Returns(new ModelMetadata[0]);
metadataProvider.Setup(p => p.GetMetadataForProperty(It.IsAny<Func<object>>(), It.IsAny<Type>(), It.IsAny<string>()))
.Returns(metadata.Object);
metadataProvider.Setup(p => p.GetMetadataForType(It.IsAny<Func<object>>(), It.IsAny<Type>()))
.Returns(metadata.Object);
}
// Label tests
[Fact]
public void LabelNullExpressionThrows()
{
// Act & Assert
Assert.ThrowsArgumentNull(
() => html.Label(null),
"expression");
}
[Fact]
public void LabelViewDataNotFound()
{
// Act
MvcHtmlString result = html.Label("PropertyName", null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""PropertyName"">PropertyName</label>", result.ToHtmlString());
}
[Fact]
public void LabelViewDataNull()
{
// Act
viewData["PropertyName"] = null;
MvcHtmlString result = html.Label("PropertyName", null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""PropertyName"">PropertyName</label>", result.ToHtmlString());
}
class Model
{
public string PropertyName { get; set; }
}
[Fact]
public void LabelViewDataFromPropertyGetsActualPropertyType()
{
// Arrange
Model model = new Model { PropertyName = "propertyValue" };
HtmlHelper<Model> html = new HtmlHelper<Model>(viewContext.Object, viewDataContainer.Object);
viewData.Model = model;
metadataProvider.Setup(p => p.GetMetadataForProperty(It.IsAny<Func<object>>(), typeof(Model), "PropertyName"))
.Returns(metadata.Object)
.Verifiable();
// Act
html.Label("PropertyName", null, null, metadataProvider.Object);
// Assert
metadataProvider.Verify();
}
[Fact]
public void LabelUsesTemplateInfoPrefix()
{
// Arrange
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
// Act
MvcHtmlString result = html.Label("PropertyName", null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""Prefix_PropertyName"">PropertyName</label>", result.ToHtmlString());
}
[Fact]
public void LabelUsesLabelTextBeforeMetadata()
{
// Arrange
metadata = new Mock<ModelMetadata>(metadataProvider.Object, null, null, typeof(object), "Custom property name from metadata");
metadataProvider.Setup(p => p.GetMetadataForType(It.IsAny<Func<object>>(), It.IsAny<Type>()))
.Returns(metadata.Object);
//Act
MvcHtmlString result = html.Label("PropertyName", "Label Text", null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""PropertyName"">Label Text</label>", result.ToHtmlString());
}
[Fact]
public void LabelUsesMetadataForDisplayTextWhenLabelTextIsNull()
{
// Arrange
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
// Act
MvcHtmlString result = html.Label("PropertyName", null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""PropertyName"">Custom display name from metadata</label>", result.ToHtmlString());
}
[Fact]
public void LabelUsesMetadataForPropertyNameWhenDisplayNameIsNull()
{
// Arrange
metadata = new Mock<ModelMetadata>(metadataProvider.Object, null, null, typeof(object), "Custom property name from metadata");
metadataProvider.Setup(p => p.GetMetadataForType(It.IsAny<Func<object>>(), It.IsAny<Type>()))
.Returns(metadata.Object);
// Act
MvcHtmlString result = html.Label("PropertyName", null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""PropertyName"">Custom property name from metadata</label>", result.ToHtmlString());
}
[Fact]
public void LabelEmptyDisplayNameReturnsEmptyLabelText()
{
// Arrange
metadata.Setup(m => m.DisplayName).Returns(String.Empty);
// Act
MvcHtmlString result = html.Label("PropertyName", null, null, metadataProvider.Object);
// Assert
Assert.Equal(String.Empty, result.ToHtmlString());
}
[Fact]
public void LabelWithAnonymousValues()
{
// Act
MvcHtmlString result = html.Label("PropertyName", null, new { @for = "attrFor" }, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""attrFor"">PropertyName</label>", result.ToHtmlString());
}
[Fact]
public void LabelWithAnonymousValuesAndLabelText()
{
// Act
MvcHtmlString result = html.Label("PropertyName", "Label Text", new { @for = "attrFor" }, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""attrFor"">Label Text</label>", result.ToHtmlString());
}
[Fact]
public void LabelWithTypedAttributes()
{
// Arrange
Dictionary<string, object> htmlAttributes = new Dictionary<string, object>
{
{ "foo", "bar" },
{ "quux", "baz" }
};
// Act
MvcHtmlString result = html.Label("PropertyName", null, htmlAttributes, metadataProvider.Object);
// Assert
Assert.Equal(@"<label foo=""bar"" for=""PropertyName"" quux=""baz"">PropertyName</label>", result.ToHtmlString());
}
[Fact]
public void LabelWithTypedAttributesAndLabelText()
{
// Arrange
Dictionary<string, object> htmlAttributes = new Dictionary<string, object>
{
{ "foo", "bar" },
{ "quux", "baz" }
};
// Act
MvcHtmlString result = html.Label("PropertyName", "Label Text", htmlAttributes, metadataProvider.Object);
// Assert
Assert.Equal(@"<label foo=""bar"" for=""PropertyName"" quux=""baz"">Label Text</label>", result.ToHtmlString());
}
// LabelFor tests
[Fact]
public void LabelForNullExpressionThrows()
{
// Act & Assert
Assert.ThrowsArgumentNull(
() => html.LabelFor((Expression<Func<Object, Object>>)null),
"expression");
}
[Fact]
public void LabelForNonMemberExpressionThrows()
{
// Act & Assert
Assert.Throws<InvalidOperationException>(
() => html.LabelFor(model => new { foo = "Bar" }, null, metadataProvider.Object),
"Templates can be used only with field access, property access, single-dimension array index, or single-parameter custom indexer expressions.");
}
[Fact]
public void LabelForViewDataNotFound()
{
// Arrange
string unknownKey = "this is a dummy parameter value";
// Act
MvcHtmlString result = html.LabelFor(model => unknownKey, null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""unknownKey"">unknownKey</label>", result.ToHtmlString());
}
[Fact]
public void LabelForUsesTemplateInfoPrefix()
{
// Arrange
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
string unknownKey = "this is a dummy parameter value";
// Act
MvcHtmlString result = html.LabelFor(model => unknownKey, null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""Prefix_unknownKey"">unknownKey</label>", result.ToHtmlString());
}
[Fact]
public void LabelForUsesLabelTextBeforeModelMetadata()
{
// Arrange
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
string unknownKey = "this is a dummy parameter value";
//Act
MvcHtmlString result = html.LabelFor(model => unknownKey, "Label Text", null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""unknownKey"">Label Text</label>", result.ToHtmlString());
}
[Fact]
public void LabelForUsesModelMetadata()
{
// Arrange
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
string unknownKey = "this is a dummy parameter value";
// Act
MvcHtmlString result = html.LabelFor(model => unknownKey, null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""unknownKey"">Custom display name from metadata</label>", result.ToHtmlString());
}
[Fact]
public void LabelForEmptyDisplayNameReturnsEmptyLabelText()
{
// Arrange
metadata.Setup(m => m.DisplayName).Returns(String.Empty);
string unknownKey = "this is a dummy parameter value";
// Act
MvcHtmlString result = html.LabelFor(model => unknownKey, null, null, metadataProvider.Object);
// Assert
Assert.Equal(String.Empty, result.ToHtmlString());
}
[Fact]
public void LabelForWithAnonymousValues()
{
//Arrange
string unknownKey = "this is a dummy parameter value";
// Act
MvcHtmlString result = html.LabelFor(model => unknownKey, null, new { @for = "attrFor" }, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""attrFor"">unknownKey</label>", result.ToHtmlString());
}
[Fact]
public void LabelForWithAnonymousValuesAndLabelText()
{
//Arrange
string unknownKey = "this is a dummy parameter value";
// Act
MvcHtmlString result = html.LabelFor(model => unknownKey, "Label Text", new { @for = "attrFor" }, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""attrFor"">Label Text</label>", result.ToHtmlString());
}
[Fact]
public void LabelForWithTypedAttributes()
{
//Arrange
string unknownKey = "this is a dummy parameter value";
Dictionary<string, object> htmlAttributes = new Dictionary<string, object>
{
{ "foo", "bar" },
{ "quux", "baz" }
};
// Act
MvcHtmlString result = html.LabelFor(model => unknownKey, null, htmlAttributes, metadataProvider.Object);
// Assert
Assert.Equal(@"<label foo=""bar"" for=""unknownKey"" quux=""baz"">unknownKey</label>", result.ToHtmlString());
}
[Fact]
public void LabelForWithTypedAttributesAndLabelText()
{
//Arrange
string unknownKey = "this is a dummy parameter value";
Dictionary<string, object> htmlAttributes = new Dictionary<string, object>
{
{ "foo", "bar" },
{ "quux", "baz" }
};
// Act
MvcHtmlString result = html.LabelFor(model => unknownKey, "Label Text", htmlAttributes, metadataProvider.Object);
// Assert
Assert.Equal(@"<label foo=""bar"" for=""unknownKey"" quux=""baz"">Label Text</label>", result.ToHtmlString());
}
[Fact]
public void LabelForWithNestedClass()
{ // Dev10 Bug #936323
// Arrange
HtmlHelper<NestedProduct> html = new HtmlHelper<NestedProduct>(viewContext.Object, viewDataContainer.Object);
// Act
MvcHtmlString result = html.LabelFor(nested => nested.product.Id, null, null, metadataProvider.Object);
//Assert
Assert.Equal(@"<label for=""product_Id"">Id</label>", result.ToHtmlString());
}
[Fact]
public void LabelForWithArrayExpression()
{ // Dev10 Bug #905780
// Arrange
HtmlHelper<Cart> html = new HtmlHelper<Cart>(viewContext.Object, viewDataContainer.Object);
// Act
MvcHtmlString result = html.LabelFor(cart => cart.Products[0].Id, null, null, metadataProvider.Object);
// Assert
Assert.Equal(@"<label for=""Products_0__Id"">Id</label>", result.ToHtmlString());
}
private class Product
{
public int Id { get; set; }
}
private class Cart
{
public Product[] Products { get; set; }
}
private class NestedProduct
{
public Product product = new Product();
}
// LabelForModel tests
[Fact]
public void LabelForModelUsesLabelTextBeforeModelMetadata()
{
// Arrange
viewData.ModelMetadata = metadata.Object;
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
// Act
MvcHtmlString result = html.LabelForModel("Label Text");
// Assert
Assert.Equal(@"<label for=""Prefix"">Label Text</label>", result.ToHtmlString());
}
[Fact]
public void LabelForModelUsesModelMetadata()
{
// Arrange
viewData.ModelMetadata = metadata.Object;
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
// Act
MvcHtmlString result = html.LabelForModel();
// Assert
Assert.Equal(@"<label for=""Prefix"">Custom display name from metadata</label>", result.ToHtmlString());
}
[Fact]
public void LabelForModelWithAnonymousValues()
{
//Arrange
viewData.ModelMetadata = metadata.Object;
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
// Act
MvcHtmlString result = html.LabelForModel(new { @for = "attrFor" });
// Assert
Assert.Equal(@"<label for=""attrFor"">Custom display name from metadata</label>", result.ToHtmlString());
}
[Fact]
public void LabelForModelWithAnonymousValuesAndLabelText()
{
//Arrange
viewData.ModelMetadata = metadata.Object;
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
// Act
MvcHtmlString result = html.LabelForModel("Label Text", new { @for = "attrFor" });
// Assert
Assert.Equal(@"<label for=""attrFor"">Label Text</label>", result.ToHtmlString());
}
[Fact]
public void LabelForModelWithTypedAttributes()
{
//Arrange
viewData.ModelMetadata = metadata.Object;
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
Dictionary<string, object> htmlAttributes = new Dictionary<string, object>
{
{ "foo", "bar" },
{ "quux", "baz" }
};
// Act
MvcHtmlString result = html.LabelForModel(htmlAttributes);
// Assert
Assert.Equal(@"<label foo=""bar"" for=""Prefix"" quux=""baz"">Custom display name from metadata</label>", result.ToHtmlString());
}
[Fact]
public void LabelForModelWithTypedAttributesAndLabelText()
{
//Arrange
viewData.ModelMetadata = metadata.Object;
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
metadata.Setup(m => m.DisplayName).Returns("Custom display name from metadata");
Dictionary<string, object> htmlAttributes = new Dictionary<string, object>
{
{ "foo", "bar" },
{ "quux", "baz" }
};
// Act
MvcHtmlString result = html.LabelForModel("Label Text", htmlAttributes);
// Assert
Assert.Equal(@"<label foo=""bar"" for=""Prefix"" quux=""baz"">Label Text</label>", result.ToHtmlString());
}
}
}