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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using System.Text.Encodings.Web;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.AspNetCore.Mvc.ViewEngines;
using Microsoft.AspNetCore.Mvc.ViewFeatures;
using Microsoft.AspNetCore.Mvc.ViewFeatures.Buffers;
using Microsoft.AspNetCore.InternalTesting;
using Microsoft.Extensions.Localization;
using Moq;
namespace Microsoft.AspNetCore.Mvc.Rendering;
public class HtmlHelperSelectTest
{
private static readonly SelectListGroup GroupOne = new SelectListGroup { Name = "Group One", };
private static readonly SelectListGroup GroupTwo = new SelectListGroup { Name = "Group Two", };
private static readonly SelectListGroup DisabledGroup = new SelectListGroup
{
Disabled = true,
Name = "Disabled Group",
};
private static readonly List<SelectListItem> BasicSelectList = new List<SelectListItem>
{
new SelectListItem("Zero", "0"),
new SelectListItem("One", "1"),
new SelectListItem("Two", "2"),
new SelectListItem("Three", "3"),
};
private static readonly List<SelectListItem> SomeDisabledOneSelectedSelectList = new List<SelectListItem>
{
new SelectListItem("Zero", "0", false, false),
new SelectListItem("One", "1", true, true),
new SelectListItem("Two", "2", false, false),
new SelectListItem("Three", "3", false, true),
};
private static readonly List<SelectListItem> SomeGroupedSomeSelectedSelectList = new List<SelectListItem>
{
new SelectListItem("Zero", "0", true) { Group = GroupOne },
new SelectListItem("One", "1", false) { Group = GroupTwo },
new SelectListItem("Two", "2", true) { Group = GroupOne },
new SelectListItem("Three", "3", false) { Group = null },
};
private static readonly List<SelectListItem> OneGroupSomeSelectedSelectList = new List<SelectListItem>
{
new SelectListItem("Zero", "0", true) { Group = GroupOne },
new SelectListItem("One", "1", true) { Group = GroupOne },
new SelectListItem("Two", "2", false) { Group = GroupOne },
new SelectListItem("Three", "3", false) { Group = GroupOne },
};
private static readonly List<SelectListItem> OneDisabledGroupAllSelectedSelectList = new List<SelectListItem>
{
new SelectListItem("Zero", "0", true) { Group = DisabledGroup },
new SelectListItem("One", "1", true) { Group = DisabledGroup },
new SelectListItem("Two", "2", true) { Group = DisabledGroup },
new SelectListItem("Three", "3", true) { Group = DisabledGroup },
};
private static readonly List<SelectListItem> SourcesSelectList = new List<SelectListItem>
{
new SelectListItem { Text = SelectSources.ModelStateEntry.ToString() },
new SelectListItem { Text = SelectSources.ModelStateEntryWithPrefix.ToString() },
new SelectListItem { Text = SelectSources.ViewDataEntry.ToString() },
new SelectListItem { Text = SelectSources.PropertyOfViewDataEntry.ToString() },
new SelectListItem { Text = SelectSources.ViewDataEntryWithPrefix.ToString() },
new SelectListItem { Text = SelectSources.PropertyOfViewDataEntryWithPrefix.ToString() },
new SelectListItem { Text = SelectSources.ModelValue.ToString() },
new SelectListItem { Text = SelectSources.PropertyOfModel.ToString() },
};
// Select list -> expected HTML with null model, expected HTML with model containing "2".
public static TheoryData<IEnumerable<SelectListItem>, string, string> DropDownListDataSet
{
get
{
return new TheoryData<IEnumerable<SelectListItem>, string, string>
{
{
BasicSelectList,
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>"
},
{
SomeDisabledOneSelectedSelectList,
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" +
Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>"
},
{
SomeGroupedSomeSelectedSelectList,
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<optgroup label=\"HtmlEncode[[Group Two]]\">" + Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<optgroup label=\"HtmlEncode[[Group Two]]\">" + Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>"
},
{
OneGroupSomeSelectedSelectList,
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>"
},
{
OneDisabledGroupAllSelectedSelectList,
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><optgroup disabled=\"HtmlEncode[[disabled]]\" label=\"HtmlEncode[[Disabled Group]]\">" +
Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\"><optgroup disabled=\"HtmlEncode[[disabled]]\" label=\"HtmlEncode[[Disabled Group]]\">" +
Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>"
},
};
}
}
// Select list -> expected HTML with null model, with model containing "2", and with model containing "1", "3".
public static TheoryData<IEnumerable<SelectListItem>, string, string, string> ListBoxDataSet
{
get
{
return new TheoryData<IEnumerable<SelectListItem>, string, string, string>
{
{
BasicSelectList,
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>"
},
{
SomeDisabledOneSelectedSelectList,
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" +
Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>"
},
{
SomeGroupedSomeSelectedSelectList,
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<optgroup label=\"HtmlEncode[[Group Two]]\">" + Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<optgroup label=\"HtmlEncode[[Group Two]]\">" + Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<optgroup label=\"HtmlEncode[[Group Two]]\">" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>"
},
{
OneGroupSomeSelectedSelectList,
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\"><optgroup label=\"HtmlEncode[[Group One]]\">" +
Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>"
},
{
OneDisabledGroupAllSelectedSelectList,
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\">" +
"<optgroup disabled=\"HtmlEncode[[disabled]]\" label=\"HtmlEncode[[Disabled Group]]\">" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\">" +
"<optgroup disabled=\"HtmlEncode[[disabled]]\" label=\"HtmlEncode[[Disabled Group]]\">" + Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>",
"<select id=\"HtmlEncode[[Property1]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[Property1]]\">" +
"<optgroup disabled=\"HtmlEncode[[disabled]]\" label=\"HtmlEncode[[Disabled Group]]\">" + Environment.NewLine +
"<option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</optgroup>" + Environment.NewLine +
"</select>"
},
};
}
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownList_WithNullModel_GeneratesExpectedValue_DoesNotChangeSelectList(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper();
var savedDisabled = selectList.Select(item => item.Disabled).ToList();
var savedGroup = selectList.Select(item => item.Group).ToList();
var savedSelected = selectList.Select(item => item.Selected).ToList();
var savedText = selectList.Select(item => item.Text).ToList();
var savedValue = selectList.Select(item => item.Value).ToList();
// Act
var html = helper.DropDownList("Property1", selectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedDisabled, selectList.Select(item => item.Disabled));
Assert.Equal(savedGroup, selectList.Select(item => item.Group));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
Assert.Equal(savedText, selectList.Select(item => item.Text));
Assert.Equal(savedValue, selectList.Select(item => item.Value));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownList_WithNullSelectList_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper();
helper.ViewData["Property1"] = selectList;
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownList("Property1", selectList: null, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownList_WithNullExpression_Throws(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml)
{
// Arrange
var expected = "The name of an HTML field cannot be null or empty. Instead use methods " +
"Microsoft.AspNetCore.Mvc.Rendering.IHtmlHelper.Editor or Microsoft.AspNetCore.Mvc.Rendering." +
"IHtmlHelper`1.EditorFor with a non-empty htmlFieldName argument value.";
var helper = DefaultTemplatesUtilities.GetHtmlHelper();
// Act & Assert
ExceptionAssert.ThrowsArgument(
() => helper.DropDownList(null, selectList: null, optionLabel: null, htmlAttributes: null),
"expression",
expected);
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownList_WithModelValue_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml,
string expectedHtml)
{
// Arrange
var model = new DefaultTemplatesUtilities.ObjectTemplateModel { Property1 = "2" };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownList("Property1", selectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Fact]
public void DropDownListNotInTemplate_GetsModelStateEntry()
{
// Arrange
var expectedHtml = GetExpectedSelectElement(SelectSources.ModelStateEntry, allowMultiple: false);
var modelState = new ModelStateDictionary();
modelState.SetModelValue(
"Property1",
SelectSources.ModelStateEntry,
SelectSources.ModelStateEntry.ToString());
modelState.SetModelValue(
"Prefix.Property1",
SelectSources.ModelStateEntryWithPrefix,
SelectSources.ModelStateEntryWithPrefix.ToString());
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingSources>(provider, modelState)
{
["Property1"] = SelectSources.ViewDataEntry,
["Prefix.Property1"] = SelectSources.ViewDataEntryWithPrefix,
["Prefix"] = new ModelContainingSources { Property1 = SelectSources.PropertyOfViewDataEntry },
};
viewData.Model = new ModelContainingSources { Property1 = SelectSources.PropertyOfModel };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.DropDownList("Property1", SourcesSelectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void DropDownListInTemplate_GetsModelStateEntry()
{
// Arrange
var expectedHtml = GetExpectedSelectElementWithPrefix(
SelectSources.ModelStateEntryWithPrefix,
allowMultiple: false);
var modelState = new ModelStateDictionary();
modelState.SetModelValue(
"Property1",
SelectSources.ModelStateEntry,
SelectSources.ModelStateEntry.ToString());
modelState.SetModelValue(
"Prefix.Property1",
SelectSources.ModelStateEntryWithPrefix,
SelectSources.ModelStateEntryWithPrefix.ToString());
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingSources>(provider, modelState)
{
["Property1"] = SelectSources.ViewDataEntry,
["Prefix.Property1"] = SelectSources.ViewDataEntryWithPrefix,
["Prefix"] = new ModelContainingSources { Property1 = SelectSources.PropertyOfViewDataEntry },
};
viewData.Model = new ModelContainingSources { Property1 = SelectSources.PropertyOfModel };
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.DropDownList("Property1", SourcesSelectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void DropDownListNotInTemplate_GetsViewDataEntry_IfModelStateEmpty()
{
// Arrange
var expectedHtml = GetExpectedSelectElement(SelectSources.ViewDataEntry, allowMultiple: false);
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingSources>(provider)
{
["Property1"] = SelectSources.ViewDataEntry,
["Prefix.Property1"] = SelectSources.ViewDataEntryWithPrefix,
["Prefix"] = new ModelContainingSources { Property1 = SelectSources.PropertyOfViewDataEntry },
};
viewData.Model = new ModelContainingSources { Property1 = SelectSources.PropertyOfModel };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.DropDownList("Property1", SourcesSelectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void DropDownListInTemplate_GetsViewDataEntry_IfModelStateEmpty()
{
// Arrange
var expectedHtml = GetExpectedSelectElementWithPrefix(
SelectSources.ViewDataEntryWithPrefix,
allowMultiple: false);
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingSources>(provider)
{
["Property1"] = SelectSources.ViewDataEntry,
["Prefix.Property1"] = SelectSources.ViewDataEntryWithPrefix,
["Prefix"] = new ModelContainingSources { Property1 = SelectSources.PropertyOfViewDataEntry },
};
viewData.Model = new ModelContainingSources { Property1 = SelectSources.PropertyOfModel };
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.DropDownList("Property1", SourcesSelectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void DropDownListInTemplate_GetsPropertyOfViewDataEntry_IfModelStateEmptyAndNoViewDataEntryWithPrefix()
{
// Arrange
var expectedHtml = GetExpectedSelectElementWithPrefix(
SelectSources.PropertyOfViewDataEntry,
allowMultiple: false);
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingSources>(provider)
{
["Property1"] = SelectSources.ViewDataEntry,
["Prefix"] = new ModelContainingSources { Property1 = SelectSources.PropertyOfViewDataEntry },
};
viewData.Model = new ModelContainingSources { Property1 = SelectSources.PropertyOfModel };
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.DropDownList("Property1", SourcesSelectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void DropDownListNotInTemplate_GetsPropertyOfModel_IfModelStateAndViewDataEmpty()
{
// Arrange
var expectedHtml = GetExpectedSelectElement(SelectSources.PropertyOfModel, allowMultiple: false);
var model = new ModelContainingSources { Property1 = SelectSources.PropertyOfModel };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.DropDownList("Property1", SourcesSelectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void DropDownListInTemplate_GetsPropertyOfModel_IfModelStateAndViewDataEmpty()
{
// Arrange
var expectedHtml = GetExpectedSelectElementWithPrefix(SelectSources.PropertyOfModel, allowMultiple: false);
var model = new ModelContainingSources { Property1 = SelectSources.PropertyOfModel };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
helper.ViewContext.ClientValidationEnabled = false;
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
// Act
var html = helper.DropDownList("Property1", SourcesSelectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownListFor_WithNullModel_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper();
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownListFor(
value => value.Property1,
selectList,
optionLabel: null,
htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownListFor_WithNullModelAndNullSelectList_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper();
helper.ViewData["Property1"] = selectList;
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownListFor(
value => value.Property1,
selectList: null,
optionLabel: null,
htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownListFor_WithModelValue_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml,
string expectedHtml)
{
// Arrange
var model = new DefaultTemplatesUtilities.ObjectTemplateModel { Property1 = "2" };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownListFor(
value => value.Property1,
selectList,
optionLabel: null,
htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownListFor_WithModelValueAndNullSelectList_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml,
string expectedHtml)
{
// Arrange
var model = new DefaultTemplatesUtilities.ObjectTemplateModel { Property1 = "2" };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
helper.ViewData["Property1"] = selectList;
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownListFor(
value => value.Property1,
selectList: null,
optionLabel: null,
htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Fact]
public void DropDownListFor_WithIndexerExpression_GeneratesExpectedValue()
{
// Arrange
var model = new ModelContainingList { Property1 = { "0", "1", "2" } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
var selectList = SomeDisabledOneSelectedSelectList;
var savedSelected = selectList.Select(item => item.Selected).ToList();
var expectedHtml =
"<select id=\"HtmlEncode[[Property1_2_]]\" name=\"HtmlEncode[[Property1[2]]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>";
// Act
var html = helper.DropDownListFor(
value => value.Property1[2],
selectList,
optionLabel: null,
htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Fact]
public void DropDownListFor_WithUnrelatedExpression_GeneratesExpectedValue()
{
// Arrange
var unrelated = "2";
var helper = DefaultTemplatesUtilities.GetHtmlHelper();
var selectList = SomeDisabledOneSelectedSelectList;
var savedSelected = selectList.Select(item => item.Selected).ToList();
var expectedHtml =
"<select id=\"HtmlEncode[[unrelated]]\" name=\"HtmlEncode[[unrelated]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>";
// Act
var html = helper.DropDownListFor(value => unrelated, selectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBox_WithNullModel_GeneratesExpectedValue_DoesNotChangeSelectList(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml1,
string ignoredHtml2)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper<ModelContainingList>(model: null);
var savedDisabled = selectList.Select(item => item.Disabled).ToList();
var savedGroup = selectList.Select(item => item.Group).ToList();
var savedSelected = selectList.Select(item => item.Selected).ToList();
var savedText = selectList.Select(item => item.Text).ToList();
var savedValue = selectList.Select(item => item.Value).ToList();
// Act
var html = helper.ListBox("Property1", selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedDisabled, selectList.Select(item => item.Disabled));
Assert.Equal(savedGroup, selectList.Select(item => item.Group));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
Assert.Equal(savedText, selectList.Select(item => item.Text));
Assert.Equal(savedValue, selectList.Select(item => item.Value));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBox_WithModelValue_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml1,
string expectedHtml,
string ignoredHtml2)
{
// Arrange
var model = new ModelContainingList { Property1 = { "2" } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.ListBox("Property1", selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBox_WithMultipleModelValues_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml1,
string ignoredHtml2,
string expectedHtml)
{
// Arrange
var model = new ModelContainingList { Property1 = { "1", "3" } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.ListBox("Property1", selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Fact]
public void ListBoxNotInTemplate_GetsModelStateEntry()
{
// Arrange
var expectedHtml = GetExpectedSelectElement(SelectSources.ModelStateEntry, allowMultiple: true);
var modelState = new ModelStateDictionary();
modelState.SetModelValue(
"Property1",
SelectSources.ModelStateEntry,
SelectSources.ModelStateEntry.ToString());
modelState.SetModelValue(
"Prefix.Property1",
SelectSources.ModelStateEntryWithPrefix,
SelectSources.ModelStateEntryWithPrefix.ToString());
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingListOfSources>(provider, modelState)
{
["Property1"] = new[] { SelectSources.ViewDataEntry },
["Prefix.Property1"] = new[] { SelectSources.ViewDataEntryWithPrefix },
["Prefix"] = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfViewDataEntry } },
};
viewData.Model = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfModel } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.ListBox("Property1", SourcesSelectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void ListBoxInTemplate_GetsModelStateEntry()
{
// Arrange
var expectedHtml = GetExpectedSelectElementWithPrefix(
SelectSources.ModelStateEntryWithPrefix,
allowMultiple: true);
var modelState = new ModelStateDictionary();
modelState.SetModelValue(
"Property1",
SelectSources.ModelStateEntry,
SelectSources.ModelStateEntry.ToString());
modelState.SetModelValue(
"Prefix.Property1",
SelectSources.ModelStateEntryWithPrefix,
SelectSources.ModelStateEntryWithPrefix.ToString());
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingListOfSources>(provider, modelState)
{
["Property1"] = new[] { SelectSources.ViewDataEntry },
["Prefix.Property1"] = new[] { SelectSources.ViewDataEntryWithPrefix },
["Prefix"] = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfViewDataEntry } },
};
viewData.Model = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfModel } };
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.ListBox("Property1", SourcesSelectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void ListBoxNotInTemplate_GetsViewDataEntry_IfModelStateEmpty()
{
// Arrange
var expectedHtml = GetExpectedSelectElement(SelectSources.ViewDataEntry, allowMultiple: true);
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingListOfSources>(provider)
{
["Property1"] = new[] { SelectSources.ViewDataEntry },
["Prefix.Property1"] = new[] { SelectSources.ViewDataEntryWithPrefix },
["Prefix"] = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfViewDataEntry } },
};
viewData.Model = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfModel } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.ListBox("Property1", SourcesSelectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void ListBoxInTemplate_GetsViewDataEntry_IfModelStateEmpty()
{
// Arrange
var expectedHtml = GetExpectedSelectElementWithPrefix(
SelectSources.ViewDataEntryWithPrefix,
allowMultiple: true);
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingListOfSources>(provider)
{
["Property1"] = new[] { SelectSources.ViewDataEntry },
["Prefix.Property1"] = new[] { SelectSources.ViewDataEntryWithPrefix },
["Prefix"] = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfViewDataEntry } },
};
viewData.Model = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfModel } };
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.ListBox("Property1", SourcesSelectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void ListBoxInTemplate_GetsPropertyOfViewDataEntry_IfModelStateEmptyAndNoViewDataEntryWithPrefix()
{
// Arrange
var expectedHtml = GetExpectedSelectElementWithPrefix(
SelectSources.PropertyOfViewDataEntry,
allowMultiple: true);
var provider = TestModelMetadataProvider.CreateDefaultProvider();
var viewData = new ViewDataDictionary<ModelContainingListOfSources>(provider)
{
["Property1"] = new[] { SelectSources.ViewDataEntry },
["Prefix"] = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfViewDataEntry } },
};
viewData.Model = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfModel } };
viewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.ListBox("Property1", SourcesSelectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void ListBoxNotInTemplate_GetsPropertyOfModel_IfModelStateAndViewDataEmpty()
{
// Arrange
var expectedHtml = GetExpectedSelectElement(SelectSources.PropertyOfModel, allowMultiple: true);
var model = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfModel } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
helper.ViewContext.ClientValidationEnabled = false;
// Act
var html = helper.ListBox("Property1", SourcesSelectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void ListBoxInTemplate_GetsPropertyOfModel_IfModelStateAndViewDataEmpty()
{
// Arrange
var expectedHtml = GetExpectedSelectElementWithPrefix(SelectSources.PropertyOfModel, allowMultiple: true);
var model = new ModelContainingListOfSources { Property1 = { SelectSources.PropertyOfModel } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
helper.ViewContext.ClientValidationEnabled = false;
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
// Act
var html = helper.ListBox("Property1", SourcesSelectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBoxFor_WithNullModel_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml1,
string ignoredHtml2)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper<ModelContainingList>(model: null);
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.ListBoxFor(value => value.Property1, selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBoxFor_WithModelValue_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml1,
string expectedHtml,
string ignoredHtml2)
{
// Arrange
var model = new ModelContainingList { Property1 = { "2" } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.ListBoxFor(value => value.Property1, selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Fact]
public void ListBoxFor_WithUnrelatedExpression_GeneratesExpectedValue()
{
// Arrange
var unrelated = new[] { "2" };
var helper = DefaultTemplatesUtilities.GetHtmlHelper();
var selectList = SomeDisabledOneSelectedSelectList;
var savedSelected = selectList.Select(item => item.Selected).ToList();
var expectedHtml =
"<select id=\"HtmlEncode[[unrelated]]\" multiple=\"HtmlEncode[[multiple]]\" name=\"HtmlEncode[[unrelated]]\"><option value=\"HtmlEncode[[0]]\">HtmlEncode[[Zero]]</option>" +
Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[1]]\">HtmlEncode[[One]]</option>" + Environment.NewLine +
"<option selected=\"HtmlEncode[[selected]]\" value=\"HtmlEncode[[2]]\">HtmlEncode[[Two]]</option>" + Environment.NewLine +
"<option disabled=\"HtmlEncode[[disabled]]\" value=\"HtmlEncode[[3]]\">HtmlEncode[[Three]]</option>" + Environment.NewLine +
"</select>";
// Act
var html = helper.ListBoxFor(value => unrelated, selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBoxFor_WithMultipleModelValues_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml1,
string ignoredHtml2,
string expectedHtml)
{
// Arrange
var model = new ModelContainingList { Property1 = { "1", "3" } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.ListBoxFor(value => value.Property1, selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownListInTemplate_WithNullModel_GeneratesExpectedValue_DoesNotChangeSelectList(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper<string>(model: null);
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Property1";
var savedDisabled = selectList.Select(item => item.Disabled).ToList();
var savedGroup = selectList.Select(item => item.Group).ToList();
var savedSelected = selectList.Select(item => item.Selected).ToList();
var savedText = selectList.Select(item => item.Text).ToList();
var savedValue = selectList.Select(item => item.Value).ToList();
// Act
var html = helper.DropDownList(
expression: string.Empty,
selectList: selectList,
optionLabel: null,
htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedDisabled, selectList.Select(item => item.Disabled));
Assert.Equal(savedGroup, selectList.Select(item => item.Group));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
Assert.Equal(savedText, selectList.Select(item => item.Text));
Assert.Equal(savedValue, selectList.Select(item => item.Value));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownListInTemplate_WithModelValue_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml,
string expectedHtml)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper("2");
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Property1";
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownList(
expression: string.Empty,
selectList: selectList,
optionLabel: null,
htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownListForInTemplate_WithNullModel_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper<string>(model: null);
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Property1";
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownListFor(value => value, selectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(DropDownListDataSet))]
public void DropDownListForInTemplate_WithModelValue_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml,
string expectedHtml)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper("2");
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Property1";
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.DropDownListFor(value => value, selectList, optionLabel: null, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBoxInTemplate_WithNullModel_GeneratesExpectedValue_DoesNotChangeSelectList(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml1,
string ignoredHtml2)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper<List<string>>(model: null);
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Property1";
var savedDisabled = selectList.Select(item => item.Disabled).ToList();
var savedGroup = selectList.Select(item => item.Group).ToList();
var savedSelected = selectList.Select(item => item.Selected).ToList();
var savedText = selectList.Select(item => item.Text).ToList();
var savedValue = selectList.Select(item => item.Value).ToList();
// Act
var html = helper.ListBox(expression: string.Empty, selectList: selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedDisabled, selectList.Select(item => item.Disabled));
Assert.Equal(savedGroup, selectList.Select(item => item.Group));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
Assert.Equal(savedText, selectList.Select(item => item.Text));
Assert.Equal(savedValue, selectList.Select(item => item.Value));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBoxInTemplate_WithModelValue_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml1,
string expectedHtml,
string ignoredHtml2)
{
// Arrange
var model = new List<string> { "2" };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Property1";
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.ListBox(expression: string.Empty, selectList: selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBoxForInTemplate_WithNullModel_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string expectedHtml,
string ignoredHtml1,
string ignoredHtml2)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper<List<string>>(model: null);
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Property1";
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.ListBoxFor(value => value, selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Theory]
[MemberData(nameof(ListBoxDataSet))]
public void ListBoxForInTemplate_WithModelValue_GeneratesExpectedValue(
IEnumerable<SelectListItem> selectList,
string ignoredHtml1,
string expectedHtml,
string ignoredHtml2)
{
// Arrange
var model = new List<string> { "2" };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Property1";
var savedSelected = selectList.Select(item => item.Selected).ToList();
// Act
var html = helper.ListBoxFor(value => value, selectList, htmlAttributes: null);
// Assert
Assert.Equal(expectedHtml, HtmlContentUtilities.HtmlContentToString(html));
Assert.Equal(savedSelected, selectList.Select(item => item.Selected));
}
[Fact]
public void GetEnumSelectListTEnum_ThrowsWithFlagsEnum()
{
// Arrange
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act & Assert
ExceptionAssert.ThrowsArgument(
() => htmlHelper.GetEnumSelectList<EnumWithFlags>(),
"TEnum",
$"The type '{ typeof(EnumWithFlags).FullName }' is not supported.");
}
[Fact]
public void GetEnumSelectListTEnum_ThrowsWithNonEnum()
{
// Arrange
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act & Assert
ExceptionAssert.ThrowsArgument(
() => htmlHelper.GetEnumSelectList<StructWithFields>(),
"TEnum",
$"The type '{ typeof(StructWithFields).FullName }' is not supported.");
}
[Fact]
[ReplaceCulture("en-US", "en-US")]
public void GetEnumSelectListTEnum_DisplayAttributeUsesIStringLocalizer()
{
// Arrange
var stringLocalizer = new Mock<IStringLocalizer>();
stringLocalizer
.Setup(s => s[It.IsAny<string>()])
.Returns<string>((s) => { return new LocalizedString(s, s + " " + CultureInfo.CurrentCulture); });
var stringLocalizerFactory = new Mock<IStringLocalizerFactory>();
stringLocalizerFactory
.Setup(s => s.Create(It.IsAny<Type>()))
.Returns(stringLocalizer.Object);
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider(stringLocalizerFactory.Object);
var metadata = metadataProvider.GetMetadataForType(typeof(EnumWithFields));
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act
var result = htmlHelper.GetEnumSelectList<EnumWithDisplayNames>();
// Assert
var zeroSelect = Assert.Single(result, s => s.Value.Equals("0", StringComparison.Ordinal));
Assert.Equal("cero en-US", zeroSelect.Text);
}
[Fact]
public void GetEnumSelectListTEnum_WrapsGetEnumSelectListModelMetadata()
{
// Arrange
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
var metadata = metadataProvider.GetMetadataForType(typeof(EnumWithFields));
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act
var result = htmlHelper.GetEnumSelectList<EnumWithFields>();
// Assert
Assert.Equal(metadata.ModelType, htmlHelper.Metadata.ModelType);
Assert.Same(htmlHelper.SelectListItems, result); // No replacement of the underlying List
VerifySelectList(htmlHelper.CopiedSelectListItems, result); // No change to the (mutable) items
}
[Fact]
public void GetEnumSelectListType_ThrowsWithFlagsEnum()
{
// Arrange
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act & Assert
ExceptionAssert.ThrowsArgument(
() => htmlHelper.GetEnumSelectList(typeof(EnumWithFlags)),
"enumType",
$"The type '{ typeof(EnumWithFlags).FullName }' is not supported.");
}
[Fact]
public void GetEnumSelectListType_ThrowsWithNonEnum()
{
// Arrange
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act & Assert
ExceptionAssert.ThrowsArgument(
() => htmlHelper.GetEnumSelectList(typeof(StructWithFields)),
"enumType",
$"The type '{ typeof(StructWithFields).FullName }' is not supported.");
}
[Fact]
public void GetEnumSelectListType_ThrowsWithNonStruct()
{
// Arrange
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act & Assert
ExceptionAssert.ThrowsArgument(
() => htmlHelper.GetEnumSelectList(typeof(ClassWithFields)),
"enumType",
$"The type '{ typeof(ClassWithFields).FullName }' is not supported.");
}
[Fact]
public void GetEnumSelectListType_WrapsGetEnumSelectListModelMetadata()
{
// Arrange
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
var metadata = metadataProvider.GetMetadataForType(typeof(EnumWithFields));
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act
var result = htmlHelper.GetEnumSelectList(typeof(EnumWithFields));
// Assert
Assert.Equal(metadata.ModelType, htmlHelper.Metadata.ModelType);
Assert.Same(htmlHelper.SelectListItems, result); // No replacement of the underlying List
VerifySelectList(htmlHelper.CopiedSelectListItems, result); // No change to the (mutable) items
}
public static TheoryData<Type, IEnumerable<SelectListItem>> GetEnumSelectListData
{
get
{
return new TheoryData<Type, IEnumerable<SelectListItem>>
{
{ typeof(EmptyEnum), Enumerable.Empty<SelectListItem>() },
{ typeof(EmptyEnum?), Enumerable.Empty<SelectListItem>() },
{
typeof(EnumWithDisplayNames),
new List<SelectListItem>
{
new SelectListItem { Text = "cero", Value = "0" },
new SelectListItem { Text = nameof(EnumWithDisplayNames.One), Value = "1" },
new SelectListItem { Text = "dos", Value = "2" },
new SelectListItem { Text = "tres", Value = "3" },
new SelectListItem { Text = "name from resources", Value = "-2" },
new SelectListItem { Text = "menos uno", Value = "-1" },
}
},
{
typeof(EnumWithDisplayNames?),
new List<SelectListItem>
{
new SelectListItem { Text = "cero", Value = "0" },
new SelectListItem { Text = nameof(EnumWithDisplayNames.One), Value = "1" },
new SelectListItem { Text = "dos", Value = "2" },
new SelectListItem { Text = "tres", Value = "3" },
new SelectListItem { Text = "name from resources", Value = "-2" },
new SelectListItem { Text = "menos uno", Value = "-1" },
}
},
{
typeof(EnumWithDuplicates),
new List<SelectListItem>
{
new SelectListItem { Text = nameof(EnumWithDuplicates.Zero), Value = "0" },
new SelectListItem { Text = nameof(EnumWithDuplicates.None), Value = "0" },
new SelectListItem { Text = nameof(EnumWithDuplicates.One), Value = "1" },
new SelectListItem { Text = nameof(EnumWithDuplicates.Duece), Value = "2" },
new SelectListItem { Text = nameof(EnumWithDuplicates.Two), Value = "2" },
new SelectListItem { Text = nameof(EnumWithDuplicates.MoreThanTwo), Value = "3" },
new SelectListItem { Text = nameof(EnumWithDuplicates.Three), Value = "3" },
}
},
{
typeof(EnumWithDuplicates?),
new List<SelectListItem>
{
new SelectListItem { Text = nameof(EnumWithDuplicates.Zero), Value = "0" },
new SelectListItem { Text = nameof(EnumWithDuplicates.None), Value = "0" },
new SelectListItem { Text = nameof(EnumWithDuplicates.One), Value = "1" },
new SelectListItem { Text = nameof(EnumWithDuplicates.Duece), Value = "2" },
new SelectListItem { Text = nameof(EnumWithDuplicates.Two), Value = "2" },
new SelectListItem { Text = nameof(EnumWithDuplicates.MoreThanTwo), Value = "3" },
new SelectListItem { Text = nameof(EnumWithDuplicates.Three), Value = "3" },
}
},
{
typeof(EnumWithFields),
new List<SelectListItem>
{
new SelectListItem { Text = nameof(EnumWithFields.Zero), Value = "0" },
new SelectListItem { Text = nameof(EnumWithFields.One), Value = "1" },
new SelectListItem { Text = nameof(EnumWithFields.Two), Value = "2" },
new SelectListItem { Text = nameof(EnumWithFields.Three), Value = "3" },
new SelectListItem { Text = nameof(EnumWithFields.MinusTwo), Value = "-2" },
new SelectListItem { Text = nameof(EnumWithFields.MinusOne), Value = "-1" },
}
},
{
typeof(EnumWithFields?),
new List<SelectListItem>
{
new SelectListItem { Text = nameof(EnumWithFields.Zero), Value = "0" },
new SelectListItem { Text = nameof(EnumWithFields.One), Value = "1" },
new SelectListItem { Text = nameof(EnumWithFields.Two), Value = "2" },
new SelectListItem { Text = nameof(EnumWithFields.Three), Value = "3" },
new SelectListItem { Text = nameof(EnumWithFields.MinusTwo), Value = "-2" },
new SelectListItem { Text = nameof(EnumWithFields.MinusOne), Value = "-1" },
}
},
};
}
}
[Theory]
[MemberData(nameof(GetEnumSelectListData))]
public void GetEnumSelectList_ReturnsExpectedItems(Type type, IEnumerable<SelectListItem> expected)
{
// Arrange
var metadataProvider = TestModelMetadataProvider.CreateDefaultProvider();
var metadata = metadataProvider.GetMetadataForType(type);
var htmlHelper = new TestHtmlHelper(metadataProvider);
// Act
var result = htmlHelper.GetEnumSelectList(type);
// Assert
// OrderBy is used because the order of the results may very depending on the platform / client.
VerifySelectList(
expected.OrderBy(item => item.Text, StringComparer.Ordinal),
result.OrderBy(item => item.Text, StringComparer.Ordinal));
}
private static string GetExpectedSelectElement(SelectSources source, bool allowMultiple)
{
return $"<select id=\"HtmlEncode[[Property1]]\"{ GetMultiple(allowMultiple) } " +
"name=\"HtmlEncode[[Property1]]\">" +
$"{ GetOption(SelectSources.ModelStateEntry, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.ModelStateEntryWithPrefix, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.ViewDataEntry, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.PropertyOfViewDataEntry, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.ViewDataEntryWithPrefix, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.PropertyOfViewDataEntryWithPrefix, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.ModelValue, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.PropertyOfModel, source) }{ Environment.NewLine }" +
"</select>";
}
private static string GetExpectedSelectElementWithPrefix(SelectSources source, bool allowMultiple)
{
return $"<select id=\"HtmlEncode[[Prefix_Property1]]\"{ GetMultiple(allowMultiple) } " +
"name=\"HtmlEncode[[Prefix.Property1]]\">" +
$"{ GetOption(SelectSources.ModelStateEntry, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.ModelStateEntryWithPrefix, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.ViewDataEntry, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.PropertyOfViewDataEntry, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.ViewDataEntryWithPrefix, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.PropertyOfViewDataEntryWithPrefix, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.ModelValue, source) }{ Environment.NewLine }" +
$"{ GetOption(SelectSources.PropertyOfModel, source) }{ Environment.NewLine }" +
"</select>";
}
private static string GetMultiple(bool allowMultiple)
{
return allowMultiple ? " multiple=\"HtmlEncode[[multiple]]\"" : string.Empty;
}
private static string GetOption(SelectSources optionSource, SelectSources source)
{
return $"<option{ GetSelected(optionSource, source) }>HtmlEncode[[{ optionSource.ToString() }]]</option>";
}
private static string GetSelected(SelectSources optionSource, SelectSources source)
{
return optionSource == source ? " selected=\"HtmlEncode[[selected]]\"" : string.Empty;
}
// Confirm methods that wrap GetEnumSelectList(ModelMetadata) are not changing anything in returned collection.
private void VerifySelectList(IEnumerable<SelectListItem> expected, IEnumerable<SelectListItem> actual)
{
Assert.NotNull(actual);
Assert.Equal(expected.Count(), actual.Count());
for (var i = 0; i < actual.Count(); i++)
{
var expectedItem = expected.ElementAt(i);
var actualItem = actual.ElementAt(i);
Assert.False(actualItem.Disabled);
Assert.Null(actualItem.Group);
Assert.False(actualItem.Selected);
Assert.Equal(expectedItem.Text, actualItem.Text);
Assert.Equal(expectedItem.Value, actualItem.Value);
}
}
private class TestHtmlHelper : HtmlHelper
{
public TestHtmlHelper(IModelMetadataProvider metadataProvider)
: base(
new Mock<IHtmlGenerator>(MockBehavior.Strict).Object,
new Mock<ICompositeViewEngine>(MockBehavior.Strict).Object,
metadataProvider,
new TestViewBufferScope(),
new Mock<HtmlEncoder>(MockBehavior.Strict).Object,
new Mock<UrlEncoder>(MockBehavior.Strict).Object)
{
}
public ModelMetadata Metadata { get; private set; }
public IEnumerable<SelectListItem> SelectListItems { get; private set; }
public IEnumerable<SelectListItem> CopiedSelectListItems { get; private set; }
protected override IEnumerable<SelectListItem> GetEnumSelectList(ModelMetadata metadata)
{
Metadata = metadata;
SelectListItems = base.GetEnumSelectList(metadata);
if (SelectListItems != null)
{
// Perform a deep copy to help confirm the mutable items are not changed.
var copiedSelectListItems = new List<SelectListItem>();
CopiedSelectListItems = copiedSelectListItems;
foreach (var item in SelectListItems)
{
var copy = new SelectListItem
{
Disabled = item.Disabled,
Group = item.Group,
Selected = item.Selected,
Text = item.Text,
Value = item.Value,
};
copiedSelectListItems.Add(copy);
}
}
return SelectListItems;
}
}
private enum SelectSources
{
ModelStateEntry,
ModelStateEntryWithPrefix,
ViewDataEntry,
PropertyOfViewDataEntry,
ViewDataEntryWithPrefix,
PropertyOfViewDataEntryWithPrefix,
ModelValue,
PropertyOfModel,
};
private class ModelContainingSources
{
public SelectSources Property1 { get; set; }
}
private class ModelContainingListOfSources
{
public List<SelectSources> Property1 { get; } = new List<SelectSources>();
}
private class ClassWithFields
{
public const int Zero = 0;
public const int One = 1;
}
private enum EmptyEnum
{
}
private enum EnumWithDisplayNames
{
[Display(Name = "tres")]
Three = 3,
[Display(Name = "dos")]
Two = 2,
// Display attribute exists but does not set Name.
[Display(ShortName = "uno")]
One = 1,
[Display(Name = "cero")]
Zero = 0,
[Display(Name = "menos uno")]
MinusOne = -1,
#if USE_REAL_RESOURCES
[Display(Name = nameof(Test.Resources.DisplayAttribute_Name), ResourceType = typeof(Test.Resources))]
#else
[Display(Name = nameof(TestResources.DisplayAttribute_Name), ResourceType = typeof(TestResources))]
#endif
MinusTwo = -2,
}
private enum EnumWithDuplicates
{
Zero = 0,
One = 1,
Three = 3,
MoreThanTwo = 3,
Two = 2,
None = 0,
Duece = 2,
}
[Flags]
private enum EnumWithFlags
{
Four = 4,
Two = 2,
One = 1,
Zero = 0,
All = -1,
}
private enum EnumWithFields
{
MinusTwo = -2,
MinusOne = -1,
Three = 3,
Two = 2,
One = 1,
Zero = 0,
}
private struct StructWithFields
{
public const int Zero = 0;
public const int One = 1;
}
private class ModelContainingList
{
public List<string> Property1 { get; } = new List<string>();
}
}
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