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Vichingo455
2025-06-01 11:44:20 +02:00
commit 8c656e3137
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SafeExamBrowser.Core.UnitTests/OperationModel/RepeatableOperationSequenceTests.cs Normal file
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/*
* Copyright (c) 2024 ETH Zürich, IT Services
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
using System;
using System.Collections.Generic;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Moq;
using SafeExamBrowser.Core.Contracts.OperationModel;
using SafeExamBrowser.Logging.Contracts;
using SafeExamBrowser.Core.OperationModel;
namespace SafeExamBrowser.Core.UnitTests.OperationModel
{
[TestClass]
public class RepeatableOperationSequenceTests
{
private Mock<ILogger> logger;
[TestInitialize]
public void Initialize()
{
logger = new Mock<ILogger>();
}
[TestMethod]
public void MustCorrectlyAbortRepeat()
{
var operationA = new Mock<IRepeatableOperation>();
var operationB = new Mock<IRepeatableOperation>();
var operationC = new Mock<IRepeatableOperation>();
var operations = new Queue<IRepeatableOperation>();
operationA.Setup(o => o.Repeat()).Returns(OperationResult.Success);
operationB.Setup(o => o.Repeat()).Returns(OperationResult.Aborted);
operations.Enqueue(operationA.Object);
operations.Enqueue(operationB.Object);
operations.Enqueue(operationC.Object);
var sut = new RepeatableOperationSequence(logger.Object, operations);
var result = sut.TryRepeat();
operationA.Verify(o => o.Repeat(), Times.Once);
operationA.Verify(o => o.Revert(), Times.Never);
operationB.Verify(o => o.Repeat(), Times.Once);
operationB.Verify(o => o.Revert(), Times.Never);
operationC.Verify(o => o.Repeat(), Times.Never);
operationC.Verify(o => o.Revert(), Times.Never);
Assert.AreEqual(OperationResult.Aborted, result);
}
[TestMethod]
public void MustRepeatOperations()
{
var operationA = new Mock<IRepeatableOperation>();
var operationB = new Mock<IRepeatableOperation>();
var operationC = new Mock<IRepeatableOperation>();
var operations = new Queue<IRepeatableOperation>();
operationA.Setup(o => o.Repeat()).Returns(OperationResult.Success);
operationB.Setup(o => o.Repeat()).Returns(OperationResult.Success);
operationC.Setup(o => o.Repeat()).Returns(OperationResult.Success);
operations.Enqueue(operationA.Object);
operations.Enqueue(operationB.Object);
operations.Enqueue(operationC.Object);
var sut = new RepeatableOperationSequence(logger.Object, operations);
var result = sut.TryRepeat();
operationA.Verify(o => o.Perform(), Times.Never);
operationA.Verify(o => o.Repeat(), Times.Once);
operationA.Verify(o => o.Revert(), Times.Never);
operationB.Verify(o => o.Perform(), Times.Never);
operationB.Verify(o => o.Repeat(), Times.Once);
operationB.Verify(o => o.Revert(), Times.Never);
operationC.Verify(o => o.Perform(), Times.Never);
operationC.Verify(o => o.Repeat(), Times.Once);
operationC.Verify(o => o.Revert(), Times.Never);
Assert.AreEqual(OperationResult.Success, result);
}
[TestMethod]
public void MustRepeatOperationsInSequence()
{
int current = 0, a = 0, b = 0, c = 0;
var operationA = new Mock<IRepeatableOperation>();
var operationB = new Mock<IRepeatableOperation>();
var operationC = new Mock<IRepeatableOperation>();
var operations = new Queue<IRepeatableOperation>();
operationA.Setup(o => o.Repeat()).Returns(OperationResult.Success).Callback(() => a = ++current);
operationB.Setup(o => o.Repeat()).Returns(OperationResult.Success).Callback(() => b = ++current);
operationC.Setup(o => o.Repeat()).Returns(OperationResult.Success).Callback(() => c = ++current);
operations.Enqueue(operationA.Object);
operations.Enqueue(operationB.Object);
operations.Enqueue(operationC.Object);
var sut = new RepeatableOperationSequence(logger.Object, operations);
var result = sut.TryRepeat();
Assert.AreEqual(OperationResult.Success, result);
Assert.IsTrue(a == 1);
Assert.IsTrue(b == 2);
Assert.IsTrue(c == 3);
}
[TestMethod]
public void MustNotRevertOperationsInCaseOfError()
{
var operationA = new Mock<IRepeatableOperation>();
var operationB = new Mock<IRepeatableOperation>();
var operationC = new Mock<IRepeatableOperation>();
var operationD = new Mock<IRepeatableOperation>();
var operations = new Queue<IRepeatableOperation>();
operationA.Setup(o => o.Repeat()).Returns(OperationResult.Success);
operationB.Setup(o => o.Repeat()).Returns(OperationResult.Success);
operationC.Setup(o => o.Repeat()).Throws<Exception>();
operations.Enqueue(operationA.Object);
operations.Enqueue(operationB.Object);
operations.Enqueue(operationC.Object);
operations.Enqueue(operationD.Object);
var sut = new RepeatableOperationSequence(logger.Object, operations);
var result = sut.TryRepeat();
operationA.Verify(o => o.Repeat(), Times.Once);
operationA.Verify(o => o.Revert(), Times.Never);
operationB.Verify(o => o.Repeat(), Times.Once);
operationB.Verify(o => o.Revert(), Times.Never);
operationC.Verify(o => o.Repeat(), Times.Once);
operationC.Verify(o => o.Revert(), Times.Never);
operationD.Verify(o => o.Repeat(), Times.Never);
operationD.Verify(o => o.Revert(), Times.Never);
Assert.AreEqual(OperationResult.Failed, result);
}
[TestMethod]
public void MustSucceedRepeatingWithEmptyQueue()
{
var sut = new RepeatableOperationSequence(logger.Object, new Queue<IRepeatableOperation>());
var result = sut.TryRepeat();
Assert.AreEqual(OperationResult.Success, result);
}
[TestMethod]
public void MustSucceedRepeatingWithoutCallingPerform()
{
var sut = new RepeatableOperationSequence(logger.Object, new Queue<IRepeatableOperation>());
var result = sut.TryRepeat();
Assert.AreEqual(OperationResult.Success, result);
}
[TestMethod]
public void MustNotFailInCaseOfUnexpectedErrorWhenRepeating()
{
var sut = new RepeatableOperationSequence(logger.Object, new Queue<IRepeatableOperation>());
sut.ProgressChanged += (args) => throw new Exception();
var result = sut.TryRepeat();
Assert.AreEqual(OperationResult.Failed, result);
}
}
}