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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.Linq.Expressions;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.AspNetCore.Mvc.ViewFeatures;
using Microsoft.AspNetCore.InternalTesting;
namespace Microsoft.AspNetCore.Mvc.Rendering;
public class HtmlHelperHiddenTest
{
public static TheoryData<object, string> HiddenWithAttributesData
{
get
{
var expected1 = @"<input baz=""HtmlEncode[[BazValue]]"" id=""HtmlEncode[[Property1]]"" " +
@"name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[ModelStateValue]]"" />";
var expected2 = @"<input foo-baz=""HtmlEncode[[BazValue]]"" id=""HtmlEncode[[Property1]]"" " +
@"name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[ModelStateValue]]"" />";
var htmlAttributes1 = new Dictionary<string, object>
{
{ "baz", "BazValue" },
{ "name", "-expression-" }, // overridden
};
var htmlAttributes2 = new
{
baz = "BazValue",
name = "-expression-", // overridden
};
var data = new TheoryData<object, string>
{
{ htmlAttributes1, expected1 },
{ htmlAttributes2, expected1 },
{ new Dictionary<string, object> { { "foo-baz", "BazValue" } }, expected2 },
{ new { foo_baz = "BazValue" }, expected2 }
};
return data;
}
}
[Fact]
public void HiddenWithByteArrayValue_GeneratesBase64EncodedValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[ProductName]]"" name=""HtmlEncode[[ProductName]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Fys1]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper();
// Act
var result = helper.Hidden("ProductName", new byte[] { 23, 43, 53 }, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Theory]
[MemberData(nameof(HiddenWithAttributesData))]
public void HiddenWithArgumentValueAndAttributes_UsesArgumentValue(object attributes, string expected)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.Model.Property1 = "should-not-be-used";
// Act
var result = helper.Hidden("Property1", "test", attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenNotInTemplate_GetsValueFromPropertyOfViewDataEntry()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Prefix_Property1]]"" name=""HtmlEncode[[Prefix.Property1]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[contained-view-data-value]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNonNullModel());
helper.ViewData.Model.Property1 = "model-property1-value";
helper.ViewData["Prefix"] = new HiddenModel { Property1 = "contained-view-data-value" };
// Act
var html = helper.Hidden("Prefix.Property1", value: null, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void HiddenInTemplate_GetsValueFromPropertyOfViewDataEntry()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Prefix_Property1]]"" name=""HtmlEncode[[Prefix.Property1]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[contained-view-data-value]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNonNullModel());
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
helper.ViewData.Model.Property1 = "model-property1-value";
helper.ViewData["Prefix"] = new HiddenModel { Property1 = "contained-view-data-value" };
// Act
var html = helper.Hidden("Property1", value: null, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void HiddenNotInTemplate_GetsValueFromViewDataEntry_EvenIfNull()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" " +
@"type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNonNullModel());
helper.ViewData.Model.Property1 = "model-property1-value";
helper.ViewData["Property1"] = null;
// Act
var html = helper.Hidden("Property1", value: null, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void HiddenInTemplate_GetsValueFromViewDataEntry_EvenIfNull()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Prefix_Property1]]"" name=""HtmlEncode[[Prefix.Property1]]"" " +
@"type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNonNullModel());
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
helper.ViewData.Model.Property1 = "model-property1-value";
helper.ViewData["Prefix.Property1"] = null;
// Act
var html = helper.Hidden("Property1", value: null, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void HiddenOverridesValueFromAttributesWithArgumentValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[explicit-value]]"" />";
var attributes = new { value = "attribute-value" };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNullModelAndNonNullViewData());
helper.ViewData.Clear();
// Act
var result = helper.Hidden("Property1", "explicit-value", attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenWithArgumentValueAndNullModel_UsesArgumentValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" key=""HtmlEncode[[value]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[test]]"" />";
var attributes = new { key = "value" };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNullModelAndNonNullViewData());
// Act
var result = helper.Hidden("Property1", "test", attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenWithNonNullValue_GeneratesExpectedValue()
{
// Arrange
var expected = @"<input data-key=""HtmlEncode[[value]]"" id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[test]]"" />";
var attributes = new Dictionary<string, object> { { "data-key", "value" } };
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNullModelAndNonNullViewData());
// Act
var result = helper.Hidden("Property1", "test", attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenUsesValuesFromModelState_OverExplicitSpecifiedValueAndPropertyValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[ModelStateValue]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.Model.Property1 = "test-value";
// Act
var result = helper.Hidden("Property1", value: "explicit-value", htmlAttributes: new { value = "attribute-value" });
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenUsesExplicitValue_IfModelStateDoesNotHaveProperty()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[explicit-value]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.ModelState.Clear();
helper.ViewData.Model.Property1 = "property-value";
// Act
var result = helper.Hidden("Property1", value: "explicit-value", htmlAttributes: new { value = "attribute-value" });
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenUsesValueFromViewData_IfModelStateDoesNotHavePropertyAndExplicitValueIsNull()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[view-data-val]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.ModelState.Clear();
helper.ViewData.Model.Property1 = "property-value";
// Act
var result = helper.Hidden("Property1", value: null, htmlAttributes: new { value = "attribute-value" });
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenNotInTemplate_GetsModelValue_IfModelStateAndViewDataEmpty()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[property-value]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNonNullModel());
helper.ViewData.Model.Property1 = "property-value";
// Act
var result = helper.Hidden("Property1", value: null, htmlAttributes: new { value = "attribute-value" });
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenInTemplate_GetsModelValue_IfModelStateAndViewDataEmpty()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Prefix_Property1]]"" name=""HtmlEncode[[Prefix.Property1]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[property-value]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNonNullModel());
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
helper.ViewData.Model.Property1 = "property-value";
// Act
var html = helper.Hidden("Property1", value: null, htmlAttributes: new { value = "attribute-value" });
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void HiddenNotInTemplate_DoesNotUseAttributeValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNonNullModel());
// Act
var result = helper.Hidden("Property1", value: null, htmlAttributes: new { value = "attribute-value" });
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenInTemplate_DoesNotUseAttributeValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Prefix_Property1]]"" name=""HtmlEncode[[Prefix.Property1]]"" " +
@"type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNonNullModel());
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
// Act
var html = helper.Hidden("Property1", value: null, htmlAttributes: new { value = "attribute-value" });
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void HiddenNotInTemplate_GetsEmptyValue_IfPropertyIsNotFound()
{
// Arrange
var expected = @"<input baz=""HtmlEncode[[BazValue]]"" id=""HtmlEncode[[keyNotFound]]"" name=""HtmlEncode[[keyNotFound]]"" type=""HtmlEncode[[hidden]]"" " +
@"value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
var attributes = new Dictionary<string, object> { { "baz", "BazValue" } };
// Act
var result = helper.Hidden("keyNotFound", value: null, htmlAttributes: attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenInTemplate_GetsEmptyValue_IfPropertyIsNotFound()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Prefix_keyNotFound]]"" name=""HtmlEncode[[Prefix.keyNotFound]]"" " +
@"type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.TemplateInfo.HtmlFieldPrefix = "Prefix";
// Act
var html = helper.Hidden("keyNotFound", value: null, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(html));
}
[Fact]
public void HiddenInTemplate_WithExplicitValue_GeneratesExpectedValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[MyPrefix_Property1]]"" name=""HtmlEncode[[MyPrefix.Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[PropValue]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = "MyPrefix";
// Act
var result = helper.Hidden("Property1", "PropValue", htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenInTemplate_WithExplicitValueAndEmptyName_GeneratesExpectedValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[MyPrefix]]"" name=""HtmlEncode[[MyPrefix]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[fooValue]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = "MyPrefix";
// Act
var result = helper.Hidden(string.Empty, "fooValue", htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenInTemplate_UsesPrefixName_ToLookupPropertyValueInModelState()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[MyPrefix$Property1]]"" name=""HtmlEncode[[MyPrefix.Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[modelstate-with-prefix]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(
GetViewDataWithModelStateAndModelAndViewDataValues(),
idAttributeDotReplacement: "$");
helper.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = "MyPrefix";
helper.ViewData.ModelState.Clear();
helper.ViewData.ModelState.SetModelValue(
"Property1",
"modelstate-without-prefix",
"modelstate-without-prefix");
helper.ViewData.ModelState.SetModelValue(
"MyPrefix.Property1",
"modelstate-with-prefix",
"modelstate-with-prefix");
helper.ViewData.ModelState.SetModelValue(
"MyPrefix$Property1",
"modelstate-with-iddotreplacement",
"modelstate-with-iddotreplacement");
// Act
var result = helper.Hidden("Property1", "explicit-value", htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenInTemplate_UsesPrefixNameToLookupPropertyValueInViewData()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[MyPrefix$Property1]]"" name=""HtmlEncode[[MyPrefix.Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[vdd-with-prefix]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(
GetViewDataWithModelStateAndModelAndViewDataValues(),
idAttributeDotReplacement: "$");
helper.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = "MyPrefix";
helper.ViewData.ModelState.Clear();
helper.ViewData.Clear();
helper.ViewData.Add("Property1", "vdd-without-prefix");
helper.ViewData.Add("MyPrefix.Property1", "vdd-with-prefix");
helper.ViewData.Add("MyPrefix$Property1", "vdd-with-iddotreplacement");
// Act
var result = helper.Hidden("Property1", value: null, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenWithEmptyNameAndPrefixThrows()
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper("model-value");
var attributes = new Dictionary<string, object>
{
{ "class", "some-class"}
};
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.";
// Act and Assert
ExceptionAssert.ThrowsArgument(
() => helper.Hidden(expression: string.Empty, value: null, htmlAttributes: attributes),
"expression",
expected);
}
[Fact]
public void HiddenWithEmptyNameAndPrefix_DoesNotThrow_WithNameAttribute()
{
// Arrange
var expected = @"<input class=""HtmlEncode[[some-class]]"" name=""HtmlEncode[[-expression-]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[model-value]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper("model-value");
var attributes = new Dictionary<string, object>
{
{ "class", "some-class"},
{ "name", "-expression-" },
};
// Act
var result = helper.Hidden(expression: string.Empty, value: null, htmlAttributes: attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenWithViewDataErrors_GeneratesExpectedValue()
{
// Arrange
var expected = @"<input baz=""HtmlEncode[[BazValue]]"" class=""HtmlEncode[[some-class input-validation-error]]"" id=""HtmlEncode[[Property1]]""" +
@" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[ModelStateValue]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithErrors());
var attributes = new Dictionary<string, object>
{
{ "baz", "BazValue" },
{ "class", "some-class"}
};
// Act
var result = helper.Hidden("Property1", value: null, htmlAttributes: attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenGeneratesUnobtrusiveValidation()
{
// Arrange
var requiredMessage = new RequiredAttribute().FormatErrorMessage("Property2");
var expected =
$@"<input data-val=""HtmlEncode[[true]]"" data-val-required=""HtmlEncode[[{requiredMessage}]]"" " +
@"id=""HtmlEncode[[Property2]]"" name=""HtmlEncode[[Property2]]"" type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
// Act
var result = helper.Hidden("Property2", value: null, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
public static IEnumerable<object[]> HiddenWithComplexExpressions_UsesValueFromViewDataData
{
get
{
yield return new object[]
{
"Property3[height]",
@"<input data-test=""HtmlEncode[[val]]"" id=""HtmlEncode[[Property3_height_]]"" name=""HtmlEncode[[Property3[height]]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[Prop3Value]]"" />",
};
yield return new object[]
{
"Property4.Property5",
@"<input data-test=""HtmlEncode[[val]]"" id=""HtmlEncode[[Property4_Property5]]"" name=""HtmlEncode[[Property4.Property5]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Prop5Value]]"" />",
};
yield return new object[]
{
"Property4.Property6[0]",
@"<input data-test=""HtmlEncode[[val]]"" id=""HtmlEncode[[Property4_Property6_0_]]"" name=""HtmlEncode[[Property4.Property6[0]]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Prop6Value]]"" />",
};
}
}
[Theory]
[MemberData(nameof(HiddenWithComplexExpressions_UsesValueFromViewDataData))]
public void HiddenWithComplexExpressions_UsesValueFromViewData(string expression, string expected)
{
// Arrange
var viewData = GetViewDataWithModelStateAndModelAndViewDataValues();
viewData["Property3[height]"] = "Prop3Value";
viewData["Property4.Property5"] = "Prop5Value";
viewData["Property4.Property6[0]"] = "Prop6Value";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
var attributes = new Dictionary<string, object> { { "data-test", "val" } };
// Act
var result = helper.Hidden(expression, value: null, htmlAttributes: attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
public static IEnumerable<object[]> HiddenWithComplexExpressions_UsesIdDotSeparatorData
{
get
{
yield return new object[]
{
"Property4.Property5",
@"<input data-test=""HtmlEncode[[val]]"" id=""HtmlEncode[[Property4$$Property5]]"" name=""HtmlEncode[[Property4.Property5]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Prop5Value]]"" />",
};
yield return new object[]
{
"Property4.Property6[0]",
@"<input data-test=""HtmlEncode[[val]]"" id=""HtmlEncode[[Property4$$Property6$$0$$]]"" name=""HtmlEncode[[Property4.Property6[0]]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Prop6Value]]"" />",
};
}
}
[Theory]
[MemberData(nameof(HiddenWithComplexExpressions_UsesIdDotSeparatorData))]
public void HiddenWithComplexExpressions_UsesIdDotSeparator(string expression, string expected)
{
// Arrange
var viewData = GetViewDataWithModelStateAndModelAndViewDataValues();
viewData["Property3[height]"] = "Prop3Value";
viewData["Property4.Property5"] = "Prop5Value";
viewData["Property4.Property6[0]"] = "Prop6Value";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData, idAttributeDotReplacement: "$$");
var attributes = new Dictionary<string, object> { { "data-test", "val" } };
// Act
var result = helper.Hidden(expression, value: null, htmlAttributes: attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenForWithByteArrayValue_GeneratesBase64EncodedValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Bytes]]"" name=""HtmlEncode[[Bytes]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Fys1]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.Model.Bytes = new byte[] { 23, 43, 53 };
// Act
var result = helper.HiddenFor(m => m.Bytes, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Theory]
[MemberData(nameof(HiddenWithAttributesData))]
public void HiddenForWithAttributes_GeneratesExpectedValue(object htmlAttributes, string expected)
{
// Arrange
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.Model.Property1 = "test";
// Act
var result = helper.HiddenFor(m => m.Property1, htmlAttributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenFor_UsesModelStateValueOverPropertyValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[ModelStateValue]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.Model.Property1 = "DefaultValue";
// Act
var result = helper.HiddenFor(m => m.Property1, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenFor_UsesPropertyValueIfModelStateDoesNotHaveKey()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[PropertyValue]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.ModelState.Clear();
helper.ViewData.Model.Property1 = "PropertyValue";
// Act
var result = helper.HiddenFor(m => m.Property1, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenForDoesNotUseValueFromViewDataDictionary_IfModelStateAndPropertyValueIsNull()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.Model.Property1 = null;
helper.ViewData.ModelState.Clear();
// Act
var result = helper.HiddenFor(m => m.Property1, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenForWithAttributesDictionaryAndNullModel_GeneratesExpectedValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" key=""HtmlEncode[[value]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNullModelAndNonNullViewData());
var attributes = new Dictionary<string, object> { { "key", "value" } };
// Act
var result = helper.HiddenFor(m => m.Property1, attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
// This test ensures that specifying a the prefix does not affect the expression result.
[Fact]
public void HiddenForInTemplate_GeneratesExpectedValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[MyPrefix_Property1]]"" name=""HtmlEncode[[MyPrefix.Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[propValue]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithModelStateAndModelAndViewDataValues());
helper.ViewData.Model.Property1 = "propValue";
helper.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = "MyPrefix";
// Act
var result = helper.HiddenFor(m => m.Property1, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenForInTemplate_UsesPrefixWhenLookingUpModelStateValues()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[MyPrefix$Property1]]"" name=""HtmlEncode[[MyPrefix.Property1]]"" type=""HtmlEncode[[hidden]]"" " +
@"value=""HtmlEncode[[modelstate-with-prefix]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(
GetViewDataWithModelStateAndModelAndViewDataValues(),
"$");
helper.ViewData.Model.Property1 = "propValue";
helper.ViewContext.ViewData.TemplateInfo.HtmlFieldPrefix = "MyPrefix";
helper.ViewData.ModelState.Clear();
helper.ViewData.ModelState.SetModelValue(
"Property1",
"modelstate-without-prefix",
"modelstate-without-prefix");
helper.ViewData.ModelState.SetModelValue(
"MyPrefix.Property1",
"modelstate-with-prefix",
"modelstate-with-prefix");
helper.ViewData.ModelState.SetModelValue(
"MyPrefix$Property1",
"modelstate-with-iddotreplacement",
"modelstate-with-iddotreplacement");
// Act
var result = helper.HiddenFor(m => m.Property1, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenForWithViewDataErrors_GeneratesExpectedValue()
{
// Arrange
var expected = @"<input baz=""HtmlEncode[[BazValue]]"" class=""HtmlEncode[[some-class input-validation-error]]"" id=""HtmlEncode[[Property1]]"" " +
@"name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[ModelStateValue]]"" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithErrors());
var attributes = new Dictionary<string, object>
{
{ "baz", "BazValue" },
{ "class", "some-class"}
};
// Act
var result = helper.HiddenFor(m => m.Property1, attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenFor_GeneratesUnobtrusiveValidationAttributes()
{
// Arrange
var requiredMessage = ValidationAttributeUtil.GetRequiredErrorMessage("Property2");
var expected =
$@"<input data-val=""HtmlEncode[[true]]"" data-val-required=""HtmlEncode[[{requiredMessage}]]"" " +
@"id=""HtmlEncode[[Property2]]"" name=""HtmlEncode[[Property2]]"" type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithErrors());
// Act
var result = helper.HiddenFor(m => m.Property2, htmlAttributes: null);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
public static TheoryData<Expression<Func<HiddenModel, string>>, string> HiddenFor_UsesPropertyValueIfModelStateDoesNotContainValueData
{
get
{
var localModel = new HiddenModel();
localModel.Property4.Property5 = "local-value";
return new TheoryData<Expression<Func<HiddenModel, string>>, string>
{
{
model => model.Property3["key"],
@"<input data-val=""HtmlEncode[[true]]"" id=""HtmlEncode[[Property3_key_]]"" name=""HtmlEncode[[Property3[key]]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[ModelProp3Val]]"" />"
},
{
model => model.Property4.Property5,
@"<input data-val=""HtmlEncode[[true]]"" id=""HtmlEncode[[Property4_Property5]]"" name=""HtmlEncode[[Property4.Property5]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[ModelProp5Val]]"" />"
},
{
model => model.Property4.Property6[0],
@"<input data-val=""HtmlEncode[[true]]"" id=""HtmlEncode[[Property4_Property6_0_]]"" name=""HtmlEncode[[Property4.Property6[0]]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[ModelProp6Val]]"" />"
},
{
model => localModel.Property4.Property5,
@"<input data-val=""HtmlEncode[[true]]"" id=""HtmlEncode[[localModel_Property4_Property5]]"" " +
@"name=""HtmlEncode[[localModel.Property4.Property5]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[local-value]]"" />"
}
};
}
}
[Theory]
[MemberData(nameof(HiddenFor_UsesPropertyValueIfModelStateDoesNotContainValueData))]
public void HiddenFor_UsesPropertyValueIfModelStateDoesNotContainValue(
Expression<Func<HiddenModel, string>> expression,
string expected)
{
// Arrange
var viewData = GetViewDataWithModelStateAndModelAndViewDataValues();
viewData["Property3[key]"] = "Prop3Val";
viewData["Property4.Property5"] = "Prop4Val";
viewData["Property4.Property6[0]"] = "Prop6Val";
viewData.Model.Property3["key"] = "ModelProp3Val";
viewData.Model.Property4.Property5 = "ModelProp5Val";
viewData.Model.Property4.Property6.Add("ModelProp6Val");
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
var attributes = new Dictionary<string, object>
{
{ "data-val", "true" },
{ "value", "attr-val" }
};
// Act
var result = helper.HiddenFor(expression, attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
public static TheoryData<Expression<Func<HiddenModel, string>>, string> HiddenFor_UsesModelStateValueForComplexExpressionsData
{
get
{
return new TheoryData<Expression<Func<HiddenModel, string>>, string>
{
{
model => model.Property3["key"],
@"<input data-val=""HtmlEncode[[true]]"" id=""HtmlEncode[[pre_Property3_key_]]"" name=""HtmlEncode[[pre.Property3[key]]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Prop3Val]]"" />"
},
{
model => model.Property4.Property5,
@"<input data-val=""HtmlEncode[[true]]"" id=""HtmlEncode[[pre_Property4_Property5]]"" name=""HtmlEncode[[pre.Property4.Property5]]"" " +
@"type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Prop5Val]]"" />"
},
{
model => model.Property4.Property6[0],
@"<input data-val=""HtmlEncode[[true]]"" id=""HtmlEncode[[pre_Property4_Property6_0_]]"" " +
@"name=""HtmlEncode[[pre.Property4.Property6[0]]]"" type=""HtmlEncode[[hidden]]"" value=""HtmlEncode[[Prop6Val]]"" />"
}
};
}
}
[Theory]
[MemberData(nameof(HiddenFor_UsesModelStateValueForComplexExpressionsData))]
public void HiddenForInTemplate_UsesModelStateValueForComplexExpressions(
Expression<Func<HiddenModel, string>> expression,
string expected)
{
// Arrange
var viewData = GetViewDataWithNullModelAndNonNullViewData();
viewData.ModelState.SetModelValue("pre.Property3[key]", "Prop3Val", "Prop3Val");
viewData.ModelState.SetModelValue("pre.Property4.Property5", "Prop5Val", "Prop5Val");
viewData.ModelState.SetModelValue("pre.Property4.Property6[0]", "Prop6Val", "Prop6Val");
var helper = DefaultTemplatesUtilities.GetHtmlHelper(viewData);
viewData.TemplateInfo.HtmlFieldPrefix = "pre";
var attributes = new { data_val = "true", value = "attr-val" };
// Act
var result = helper.HiddenFor(expression, attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void HiddenFor_DoesNotUseAttributeValue()
{
// Arrange
var expected = @"<input id=""HtmlEncode[[Property1]]"" name=""HtmlEncode[[Property1]]"" type=""HtmlEncode[[hidden]]"" value="""" />";
var helper = DefaultTemplatesUtilities.GetHtmlHelper(GetViewDataWithNullModelAndNonNullViewData());
var attributes = new Dictionary<string, object>
{
{ "value", "AttrValue" }
};
// Act
var result = helper.HiddenFor(m => m.Property1, attributes);
// Assert
Assert.Equal(expected, HtmlContentUtilities.HtmlContentToString(result));
}
[Fact]
public void Hidden_UsesSpecifiedExpression()
{
// Arrange
var metadataProvider = new EmptyModelMetadataProvider();
var helper = DefaultTemplatesUtilities.GetHtmlHelper(new ViewDataDictionary<TestModel>(metadataProvider));
helper.ViewContext.ClientValidationEnabled = false;
helper.ViewData.Model = new TestModel { Property1 = "propValue" };
// Act
var hiddenResult = helper.Hidden("Property1");
// Assert
Assert.Equal(
"<input id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\" type=\"HtmlEncode[[hidden]]\" value=\"HtmlEncode[[propValue]]\" />",
HtmlContentUtilities.HtmlContentToString(hiddenResult));
}
[Fact]
public void HiddenFor_UsesSpecifiedExpression()
{
// Arrange
var metadataProvider = new EmptyModelMetadataProvider();
var helper = DefaultTemplatesUtilities.GetHtmlHelper(new ViewDataDictionary<TestModel>(metadataProvider));
helper.ViewContext.ClientValidationEnabled = false;
helper.ViewData.Model = new TestModel { Property1 = "propValue" };
// Act
var hiddenForResult = helper.HiddenFor(m => m.Property1);
// Assert
Assert.Equal(
"<input id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\" type=\"HtmlEncode[[hidden]]\" value=\"HtmlEncode[[propValue]]\" />",
HtmlContentUtilities.HtmlContentToString(hiddenForResult));
}
[Fact]
public void Hidden_UsesSpecifiedValue()
{
// Arrange
var metadataProvider = new EmptyModelMetadataProvider();
var helper = DefaultTemplatesUtilities.GetHtmlHelper(new ViewDataDictionary<TestModel>(metadataProvider));
helper.ViewContext.ClientValidationEnabled = false;
helper.ViewData.Model = new TestModel { Property1 = "propValue" };
// Act
var hiddenResult = helper.Hidden("Property1", value: "myvalue");
// Assert
Assert.Equal(
"<input id=\"HtmlEncode[[Property1]]\" name=\"HtmlEncode[[Property1]]\" type=\"HtmlEncode[[hidden]]\" value=\"HtmlEncode[[myvalue]]\" />",
HtmlContentUtilities.HtmlContentToString(hiddenResult));
}
private static ViewDataDictionary<HiddenModel> GetViewDataWithNullModelAndNonNullViewData()
{
return new ViewDataDictionary<HiddenModel>(new EmptyModelMetadataProvider())
{
["Property1"] = "view-data-val",
};
}
private static ViewDataDictionary<HiddenModel> GetViewDataWithNonNullModel()
{
var viewData = new ViewDataDictionary<HiddenModel>(new EmptyModelMetadataProvider())
{
Model = new HiddenModel(),
};
return viewData;
}
private static ViewDataDictionary<HiddenModel> GetViewDataWithModelStateAndModelAndViewDataValues()
{
var viewData = GetViewDataWithNonNullModel();
viewData["Property1"] = "view-data-val";
viewData.ModelState.SetModelValue("Property1", "ModelStateValue", "ModelStateValue");
return viewData;
}
private static ViewDataDictionary<HiddenModel> GetViewDataWithErrors()
{
var viewData = GetViewDataWithModelStateAndModelAndViewDataValues();
viewData.ModelState.AddModelError("Property1", "error 1");
viewData.ModelState.AddModelError("Property1", "error 2");
return viewData;
}
public class HiddenModel
{
public string Property1 { get; set; }
public byte[] Bytes { get; set; }
[Required]
public string Property2 { get; set; }
public Dictionary<string, string> Property3 { get; } = new Dictionary<string, string>();
public NestedClass Property4 { get; } = new NestedClass();
}
public class NestedClass
{
public string Property5 { get; set; }
public List<string> Property6 { get; } = new List<string>();
}
private class TestModel
{
public string Property1 { get; set; }
}
}
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