113 lines
2.9 KiB
C#
113 lines
2.9 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.Async.Test
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{
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public class OperationCounterTest
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{
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[Fact]
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public void CompletedEvent()
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{
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// Arrange
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bool premature = true;
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bool eventFired = false;
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OperationCounter ops = new OperationCounter();
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ops.Completed += (sender, eventArgs) =>
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{
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if (premature)
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{
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Assert.True(false, "Event fired too early!");
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}
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if (eventFired)
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{
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Assert.True(false, "Event fired multiple times.");
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}
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Assert.Equal(ops, sender);
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Assert.Equal(eventArgs, EventArgs.Empty);
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eventFired = true;
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};
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// Act & assert
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ops.Increment(); // should not fire event (will throw exception)
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premature = false;
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ops.Decrement(); // should fire event
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Assert.True(eventFired);
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ops.Increment(); // should not fire event (will throw exception)
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}
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[Fact]
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public void CountStartsAtZero()
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{
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// Arrange
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OperationCounter ops = new OperationCounter();
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// Act & assert
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Assert.Equal(0, ops.Count);
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}
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[Fact]
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public void DecrementWithIntegerArgument()
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{
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// Arrange
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OperationCounter ops = new OperationCounter();
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// Act
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int returned = ops.Decrement(3);
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int newCount = ops.Count;
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// Assert
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Assert.Equal(-3, returned);
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Assert.Equal(-3, newCount);
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}
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[Fact]
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public void DecrementWithNoArguments()
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{
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// Arrange
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OperationCounter ops = new OperationCounter();
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// Act
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int returned = ops.Decrement();
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int newCount = ops.Count;
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// Assert
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Assert.Equal(-1, returned);
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Assert.Equal(-1, newCount);
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}
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[Fact]
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public void IncrementWithIntegerArgument()
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{
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// Arrange
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OperationCounter ops = new OperationCounter();
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// Act
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int returned = ops.Increment(3);
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int newCount = ops.Count;
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// Assert
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Assert.Equal(3, returned);
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Assert.Equal(3, newCount);
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}
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[Fact]
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public void IncrementWithNoArguments()
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{
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// Arrange
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OperationCounter ops = new OperationCounter();
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// Act
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int returned = ops.Increment();
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int newCount = ops.Count;
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// Assert
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Assert.Equal(1, returned);
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Assert.Equal(1, newCount);
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}
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}
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}
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