67 lines
1.7 KiB
C#
67 lines
1.7 KiB
C#
// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
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using Xunit;
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namespace System.Web.Mvc.Test
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{
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public class ViewDataInfoTest
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{
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[Fact]
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public void ViewDataInfoDoesNotCallAccessorUntilValuePropertyAccessed()
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{
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// Arrange
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bool called = false;
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ViewDataInfo vdi = new ViewDataInfo(() =>
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{
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called = true;
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return 21;
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});
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// Act & Assert
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Assert.False(called);
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object result = vdi.Value;
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Assert.True(called);
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Assert.Equal(21, result);
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}
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[Fact]
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public void AccessorIsOnlyCalledOnce()
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{
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// Arrange
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int callCount = 0;
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ViewDataInfo vdi = new ViewDataInfo(() =>
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{
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++callCount;
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return null;
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});
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// Act & Assert
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Assert.Equal(0, callCount);
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object unused;
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unused = vdi.Value;
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unused = vdi.Value;
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unused = vdi.Value;
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Assert.Equal(1, callCount);
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}
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[Fact]
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public void SettingExplicitValueOverridesAccessorMethod()
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{
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// Arrange
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bool called = false;
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ViewDataInfo vdi = new ViewDataInfo(() =>
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{
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called = true;
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return null;
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});
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// Act & Assert
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Assert.False(called);
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vdi.Value = 42;
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object result = vdi.Value;
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Assert.False(called);
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Assert.Equal(42, result);
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}
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}
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}
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