58 lines
1.7 KiB
C#
58 lines
1.7 KiB
C#
// 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.Threading.Tasks;
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using Xunit;
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namespace Microsoft.AspNet.Mvc
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{
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public class TaskHelperTest
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{
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[Fact]
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public void WaitAndThrowIfFaulted_DoesNotThrowIfTaskIsNotFaulted()
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{
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// Arrange
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var task = Task.FromResult(0);
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// Act and Assert (does not throw)
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TaskHelper.WaitAndThrowIfFaulted(task);
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}
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[Fact]
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public void WaitAndThrowIfFaulted_ThrowsIfTaskIsFaulted()
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{
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// Arrange
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var message = "Exception message";
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var task = CreatingFailingTask(message);
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// Act and Assert
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var ex = Assert.Throws<Exception>(() => TaskHelper.WaitAndThrowIfFaulted(task));
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Assert.Equal(message, ex.Message);
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}
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[Fact]
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public void WaitAndThrowIfFaulted_ThrowsFirstExceptionWhenAggregateTaskFails()
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{
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// Arrange
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var message = "Exception message";
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var task = Task.Run(async () =>
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{
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await Task.WhenAll(CreatingFailingTask(message),
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CreatingFailingTask("different message"));
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});
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// Act and Assert
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var ex = Assert.Throws<Exception>(() => TaskHelper.WaitAndThrowIfFaulted(task));
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Assert.Equal(message, ex.Message);
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}
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private static Task CreatingFailingTask(string message)
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{
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return Task.Run(() =>
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{
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throw new Exception(message);
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});
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}
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}
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} |