public void TestRollbackMultipleTasks()
{
int callOrder = 0;
var task1Mock = new Mock <IInstallerTask>();
task1Mock.Setup(x => x.Backup());
task1Mock.Setup(x => x.Execute()).Returns(true);
task1Mock.Setup(x => x.Rollback()).Callback(() => Assert.AreEqual(1, callOrder++));
task1Mock.SetupGet(x => x.FailOnError).Returns(true);
var task2Mock = new Mock <IInstallerTask>();
task2Mock.Setup(x => x.Backup());
task2Mock.Setup(x => x.Execute()).Returns(false);
task2Mock.Setup(x => x.Rollback()).Callback(() => Assert.AreEqual(0, callOrder++));
task2Mock.SetupGet(x => x.FailOnError).Returns(true);
var task3Mock = new Mock <IInstallerTask>();
task3Mock.Setup(x => x.Backup());
task3Mock.Setup(x => x.Execute()).Returns(false);
task3Mock.SetupGet(x => x.FailOnError).Returns(true);
var runner = new InstallRunner();
var result = runner.ExecuteBatch(new[] { task1Mock.Object, task2Mock.Object, task3Mock.Object });
Assert.IsFalse(result);
task1Mock.Verify(x => x.Backup());
task1Mock.Verify(x => x.Execute());
task1Mock.Verify(x => x.Rollback());
task2Mock.Verify(x => x.Backup());
task2Mock.Verify(x => x.Execute());
task2Mock.Verify(x => x.Rollback());
task3Mock.Verify(x => x.Backup(), Times.Never());
task3Mock.Verify(x => x.Execute(), Times.Never());
task3Mock.Verify(x => x.Rollback(), Times.Never());
}
public void TestNormalFlow()
{
var taskMock = new Mock <IInstallerTask>();
taskMock.Setup(x => x.Backup());
taskMock.Setup(x => x.Execute()).Returns(true);
var runner = new InstallRunner();
var result = runner.ExecuteBatch(new[] { taskMock.Object });
Assert.IsTrue(result);
taskMock.Verify(x => x.Backup());
taskMock.Verify(x => x.Execute());
taskMock.Verify(x => x.Rollback(), Times.Never());
}
public void TestRollbackOnTaskReturnsFalse()
{
var taskMock = new Mock <IInstallerTask>();
taskMock.Setup(x => x.Backup());
taskMock.Setup(x => x.Execute()).Returns(false);
taskMock.SetupGet(x => x.FailOnError).Returns(true);
var runner = new InstallRunner();
var result = runner.ExecuteBatch(new[] { taskMock.Object });
Assert.IsFalse(result);
taskMock.Verify(x => x.Backup());
taskMock.Verify(x => x.Execute());
taskMock.Verify(x => x.Rollback());
}
public void TestRollbackOnException()
{
var taskMock = new Mock <IInstallerTask>();
taskMock.SetupGet(x => x.FailOnError).Returns(true);
taskMock.Setup(x => x.Backup());
taskMock.Setup(x => x.Execute()).Throws(new Exception());
taskMock.Setup(x => x.Rollback());
var runner = new InstallRunner();
try
{
var result = runner.ExecuteBatch(new[] { taskMock.Object });
}
catch
{
taskMock.Verify(x => x.Backup());
taskMock.Verify(x => x.Execute());
taskMock.Verify(x => x.Rollback());
throw;
}
}