Add `HtmlHelperDisplayTextTest` and `HtmlHelperValueExtensionsTest` classes
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dougbu
parent
126ee116cf
commit
d0d7c6aef8
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@ -94,8 +94,10 @@
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<Compile Include="Rendering\DefaultTemplatesUtilities.cs" />
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<Compile Include="Rendering\HtmlHelperDisplayNameExtensionsTest.cs" />
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<Compile Include="Rendering\HtmlAttributePropertyHelperTest.cs" />
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<Compile Include="Rendering\HtmlHelperDisplayTextTest.cs" />
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<Compile Include="Rendering\HtmlHelperLabelExtensionsTest.cs" />
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<Compile Include="Rendering\HtmlHelperNameExtensionsTest.cs" />
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<Compile Include="Rendering\HtmlHelperValueExtensionsTest.cs" />
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<Compile Include="Rendering\ViewContextTests.cs" />
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<Compile Include="Rendering\ViewDataOfTTest.cs" />
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<Compile Include="KnownRouteValueConstraintTests.cs" />
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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System.Globalization;
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using Microsoft.AspNet.Mvc.ModelBinding;
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using Xunit;
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namespace Microsoft.AspNet.Mvc.Core
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{
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/// <summary>
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/// Test the <see cref="IHtmlHelper.DisplayText"/> and <see cref="IHtmlHelper{T}.DisplayTextFor{TValue}"/> methods.
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/// </summary>
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public class HtmlHelperDisplayTextTest
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{
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[Fact]
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public void DisplayText_ReturnsEmpty_IfValueNull()
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{
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// Arrange
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var helper = DefaultTemplatesUtilities.GetHtmlHelper<OverriddenToStringModel>(model: null);
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// Act
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var result = helper.DisplayText("");
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// Assert
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Assert.Empty(result);
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}
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[Fact]
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public void DisplayTextFor_ReturnsEmpty_IfValueNull()
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{
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// Arrange
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var helper = DefaultTemplatesUtilities.GetHtmlHelper<OverriddenToStringModel>(model: null);
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// Act
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var result = helper.DisplayTextFor(m => m);
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// Assert
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Assert.Empty(result);
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}
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[Fact]
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public void DisplayText_ReturnsNullDisplayText_IfSetAndValueNull()
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{
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// Arrange
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var helper = DefaultTemplatesUtilities.GetHtmlHelper<OverriddenToStringModel>(model: null);
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helper.ViewData.ModelMetadata.NullDisplayText = "Null display Text";
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// Act
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var result = helper.DisplayText("");
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// Assert
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Assert.Equal("Null display Text", result);
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}
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[Fact]
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public void DisplayTextFor_ReturnsNullDisplayText_IfSetAndValueNull()
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{
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// Arrange
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var helper = DefaultTemplatesUtilities.GetHtmlHelper<OverriddenToStringModel>(model: null);
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helper.ViewData.ModelMetadata.NullDisplayText = "Null display Text";
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// Act
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var result = helper.DisplayTextFor(m => m);
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// Assert
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Assert.Equal("Null display Text", result);
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}
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[Fact]
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public void DisplayText_ReturnsValue_IfNameEmpty()
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{
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// Arrange
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var model = new OverriddenToStringModel("Model value");
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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// Act
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var result = helper.DisplayText("");
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// Assert
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Assert.Equal("Model value", result);
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}
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[Fact]
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public void DisplayText_ReturnsEmpty_IfNameNotFound()
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{
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// Arrange
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var model = new OverriddenToStringModel("Model value");
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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// Act
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var result = helper.DisplayText("NonExistentProperty");
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// Assert
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Assert.Empty(result);
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}
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[Fact]
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public void DisplayTextFor_ReturnsValue_IfIdentityExpression()
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{
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// Arrange
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var model = new OverriddenToStringModel("Model value");
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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// Act
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var result = helper.DisplayTextFor(m => m);
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// Assert
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Assert.Equal("Model value", result);
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}
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[Fact]
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public void DisplayText_ReturnsSimpleDisplayText_IfSetAndValueNonNull()
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{
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// Arrange
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var model = new OverriddenToStringModel("Ignored text");
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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helper.ViewData.ModelMetadata.SimpleDisplayText = "Simple display text";
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// Act
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var result = helper.DisplayText("");
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// Assert
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Assert.Equal("Simple display text", result);
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}
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[Fact]
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public void DisplayTextFor_ReturnsSimpleDisplayText_IfSetAndValueNonNull()
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{
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// Arrange
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var model = new OverriddenToStringModel("Ignored text");
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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helper.ViewData.ModelMetadata.SimpleDisplayText = "Simple display text";
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// Act
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var result = helper.DisplayTextFor(m => m);
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// Assert
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Assert.Equal("Simple display text", result);
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}
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[Fact]
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public void DisplayText_ReturnsPropertyValue_IfNameFound()
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{
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// Arrange
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var model = new OverriddenToStringModel("Ignored text")
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{
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Name = "Property value",
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};
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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helper.ViewData.ModelMetadata.SimpleDisplayText = "Simple display text";
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// Act
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var result = helper.DisplayText("Name");
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// Assert
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Assert.Equal("Property value", result);
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}
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[Fact]
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public void DisplayTextFor_ReturnsPropertyValue_IfPropertyExpression()
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{
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// Arrange
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var model = new OverriddenToStringModel("ignored text")
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{
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Name = "Property value",
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};
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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// Act
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var result = helper.DisplayTextFor(m => m.Name);
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// Assert
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Assert.Equal("Property value", result);
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}
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[Fact]
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public void DisplayText_ReturnsViewDataEntry()
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{
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// Arrange
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var model = new OverriddenToStringModel("Model value")
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{
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Name = "Property value",
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};
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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helper.ViewData["Name"] = "View data dictionary value";
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// Act
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var result = helper.DisplayText("Name");
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// Assert
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Assert.Equal("View data dictionary value", result);
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}
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[Fact]
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public void DisplayTextFor_IgnoresViewDataEntry()
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{
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// Arrange
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var model = new OverriddenToStringModel("Model value")
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{
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Name = "Property value",
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};
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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helper.ViewData["Name"] = "View data dictionary value";
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// Act
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var result = helper.DisplayTextFor(m => m.Name);
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// Assert
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Assert.Equal("Property value", result);
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}
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[Fact]
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public void DisplayText_ReturnsModelStateEntry()
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{
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// Arrange
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var model = new OverriddenToStringModel("Model value")
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{
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Name = "Property value",
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};
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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var viewData = helper.ViewData;
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viewData["Name"] = "View data dictionary value";
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viewData.TemplateInfo.HtmlFieldPrefix = "FieldPrefix";
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var modelState = new ModelState();
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modelState.Value = new ValueProviderResult(
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rawValue: new string[] { "Attempted name value" },
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attemptedValue: "Attempted name value",
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culture: CultureInfo.InvariantCulture);
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viewData.ModelState["FieldPrefix.Name"] = modelState;
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// Act
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var result = helper.DisplayText("Name");
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// Assert
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Assert.Equal("View data dictionary value", result);
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}
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[Fact]
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public void DisplayTextFor_IgnoresModelStateEntry()
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{
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// Arrange
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var model = new OverriddenToStringModel("Model value")
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{
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Name = "Property value",
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};
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var helper = DefaultTemplatesUtilities.GetHtmlHelper(model);
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var viewData = helper.ViewData;
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viewData["Name"] = "View data dictionary value";
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viewData.TemplateInfo.HtmlFieldPrefix = "FieldPrefix";
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var modelState = new ModelState();
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modelState.Value = new ValueProviderResult(
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rawValue: new string[] { "Attempted name value" },
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attemptedValue: "Attempted name value",
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culture: CultureInfo.InvariantCulture);
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viewData.ModelState["FieldPrefix.Name"] = modelState;
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// Act
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var result = helper.DisplayTextFor(m => m.Name);
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// Assert
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Assert.Equal("Property value", result);
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}
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// ModelMetadata.SimpleDisplayText returns ToString() result if that method has been overridden.
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private sealed class OverriddenToStringModel
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{
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private readonly string _simpleDisplayText;
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public OverriddenToStringModel(string simpleDisplayText)
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{
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_simpleDisplayText = simpleDisplayText;
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}
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public string Name { get; set; }
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public override string ToString()
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{
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return _simpleDisplayText;
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}
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}
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}
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}
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@ -0,0 +1,169 @@
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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using Microsoft.AspNet.Testing;
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using Microsoft.AspNet.Mvc.ModelBinding;
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using Microsoft.AspNet.Mvc.Rendering;
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using Moq;
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using Xunit;
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namespace Microsoft.AspNet.Mvc.Core
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{
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/// <summary>
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/// Test the <see cref="HtmlHelperValueExtensions" /> class.
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/// </summary>
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public class HtmlHelperValueExtensionsTest
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{
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// Value
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[Fact]
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public void ValueGetsValueFromViewData()
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{
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// Arrange
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var helper = GetHtmlHelper();
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// Act
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var html = helper.Value("StringProperty");
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// Assert
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Assert.Equal("ViewDataValue", html);
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}
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// ValueFor
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[Fact]
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public void ValueForGetsExpressionValueFromViewDataModel()
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{
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// Arrange
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var helper = GetHtmlHelper();
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// Act
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var html = helper.ValueFor(m => m.StringProperty);
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// Assert
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Assert.Equal("ModelStringPropertyValue", html);
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}
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// All Value Helpers including ValueForModel
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[Fact]
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public void ValueHelpersWithErrorsGetValueFromModelState()
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{
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// Arrange
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var model = new TestModel()
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{
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StringProperty = "ModelStringPropertyValue",
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ObjectProperty = "ModelObjectPropertyValue",
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};
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var helper = DefaultTemplatesUtilities.GetHtmlHelper<TestModel>(model);
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var viewData = helper.ViewData;
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viewData["StringProperty"] = "ViewDataValue";
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viewData.TemplateInfo.HtmlFieldPrefix = "FieldPrefix";
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var modelState = new ModelState();
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modelState.Value = new ValueProviderResult(
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rawValue: new string[] { "StringPropertyRawValue" },
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attemptedValue: "StringPropertyAttemptedValue",
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culture: CultureInfo.InvariantCulture);
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viewData.ModelState["FieldPrefix.StringProperty"] = modelState;
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modelState = new ModelState();
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modelState.Value = new ValueProviderResult(
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rawValue: new string[] { "ModelRawValue" },
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attemptedValue: "ModelAttemptedValue",
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culture: CultureInfo.InvariantCulture);
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viewData.ModelState["FieldPrefix"] = modelState;
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// Act & Assert
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Assert.Equal("StringPropertyRawValue", helper.Value("StringProperty"));
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Assert.Equal("StringPropertyRawValue", helper.ValueFor(m => m.StringProperty));
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Assert.Equal("ModelRawValue", helper.ValueForModel());
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}
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[Fact]
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[ReplaceCulture]
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public void ValueHelpersWithEmptyNameConvertModelValueUsingCurrentCulture()
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{
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// Arrange
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var helper = GetHtmlHelper();
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var expectedModelValue =
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"{ StringProperty = ModelStringPropertyValue, ObjectProperty = 01/01/1900 00:00:00 }";
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// Act & Assert
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Assert.Equal(expectedModelValue, helper.Value(name: string.Empty));
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Assert.Equal(expectedModelValue, helper.ValueFor(m => m));
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Assert.Equal(expectedModelValue, helper.ValueForModel());
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}
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[Fact]
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[ReplaceCulture]
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public void ValueHelpersFormatValue()
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{
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// Arrange
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var helper = GetHtmlHelper();
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var expectedModelValue =
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"-{ StringProperty = ModelStringPropertyValue, ObjectProperty = 01/01/1900 00:00:00 }-";
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var expectedObjectPropertyValue = "-01/01/1900 00:00:00-";
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// Act & Assert
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Assert.Equal(expectedModelValue, helper.ValueForModel("-{0}-"));
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Assert.Equal(expectedObjectPropertyValue, helper.Value("ObjectProperty", "-{0}-"));
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Assert.Equal(expectedObjectPropertyValue, helper.ValueFor(m => m.ObjectProperty, "-{0}-"));
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}
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[Fact]
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public void ValueHelpersDoNotEncodeValue()
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{
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// Arrange
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var model = new TestModel { StringProperty = "ModelStringPropertyValue <\"\">" };
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var helper = DefaultTemplatesUtilities.GetHtmlHelper<TestModel>(model);
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var viewData = helper.ViewData;
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viewData["StringProperty"] = "ViewDataValue <\"\">";
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var modelState = new ModelState();
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modelState.Value = new ValueProviderResult(
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rawValue: new string[] { "ObjectPropertyRawValue <\"\">" },
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attemptedValue: "ObjectPropertyAttemptedValue <\"\">",
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culture: CultureInfo.InvariantCulture);
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viewData.ModelState["ObjectProperty"] = modelState;
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// Act & Assert
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Assert.Equal(
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"<{ StringProperty = ModelStringPropertyValue <\"\">, ObjectProperty = (null) }>",
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helper.ValueForModel("<{0}>"));
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Assert.Equal("<ViewDataValue <\"\">>", helper.Value("StringProperty", "<{0}>"));
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Assert.Equal("<ModelStringPropertyValue <\"\">>", helper.ValueFor(m => m.StringProperty, "<{0}>"));
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Assert.Equal("ObjectPropertyRawValue <\"\">", helper.ValueFor(m => m.ObjectProperty));
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}
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private sealed class TestModel
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{
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public string StringProperty { get; set; }
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public object ObjectProperty { get; set; }
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public override string ToString()
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{
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return string.Format(
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"{{ StringProperty = {0}, ObjectProperty = {1} }}",
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StringProperty ?? "(null)",
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ObjectProperty ?? "(null)");
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}
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}
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private static HtmlHelper<TestModel> GetHtmlHelper()
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{
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var model = new TestModel
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{
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StringProperty = "ModelStringPropertyValue",
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ObjectProperty = new DateTime(1900, 1, 1, 0, 0, 0),
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};
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var helper = DefaultTemplatesUtilities.GetHtmlHelper<TestModel>(model);
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helper.ViewData["StringProperty"] = "ViewDataValue";
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return helper;
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}
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}
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}
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