public void itShouldCallUndoOnFILOBasis()
{
var commands = new List <BaseCommand>();
var undoableCommand1 = new MockUndoableCommand();
commands.Add(undoableCommand1);
var undoableCommand2 = new MockUndoableCommandWithUndoDelay();
commands.Add(undoableCommand2);
var failingCmd = new MockFailingCommand();
commands.Add(failingCmd);
var runner = new CommandsRunner(commands);
var result = runner.Run();
Assert.IsFalse(result);
var firstCommandUndoReport = runner.Reports.First(r => r.ReportType.IsUndoReport() &&
r.Reporter.Id == undoableCommand1.Id);
var latestUndoReportTimestamp = runner.Reports.Max(r => r.ReportedOn);
var earliestUndoReport = runner.Reports.Where(r => r.ReportType.IsUndoReport())
.OrderBy(r => r.ReportedOn)
.First();
Assert.IsTrue(firstCommandUndoReport.ReportedOn > earliestUndoReport.ReportedOn);
Assert.AreEqual(firstCommandUndoReport.ReportedOn, latestUndoReportTimestamp);
}
public void itShouldCallUndoOnCommandsThatRanOnly()
{
var commands = new List <BaseCommand>();
var undoableCommand1 = new MockUndoableCommand();
commands.Add(undoableCommand1);
var failingCmd = new MockFailingCommand();
commands.Add(failingCmd);
var undoableCommand2 = new MockUndoableCommand();
commands.Add(undoableCommand2);
var runner = new CommandsRunner(commands);
var result = runner.Run();
Assert.IsFalse(result);
Assert.AreEqual(1, runner.Reports
.Where(r => r.Reporter.Id == undoableCommand1.Id && r.ReportType.IsUndoReport())
.Count());
Assert.AreEqual(1, runner.Reports
.Where(r => r.Reporter.Id == failingCmd.Id && r.ReportType.IsUndoReport())
.Count());
Assert.AreEqual(0, runner.Reports
.Where(r => r.Reporter.Id == undoableCommand2.Id && r.ReportType.IsUndoReport())
.Count());
}
public void itShouldContinueUndoEvenWhenOneUndoFails()
{
var commands = new List <BaseCommand>();
var undoableCommand1 = new MockUndoableCommand();
commands.Add(undoableCommand1);
var undoableCommand2 = new MockUndoThrowingExceptionCommand();
commands.Add(undoableCommand2);
var failingCmd = new MockFailingCommand();
commands.Add(failingCmd);
var runner = new CommandsRunner(commands);
var result = runner.Run();
Assert.IsFalse(result);
Assert.AreEqual(3, runner.Reports.Where(r => r.ReportType.IsUndoReport()).Count());
}
public void itShouldSetWasCommandStartedOnRanCommandsOnly()
{
var commands = new List <BaseCommand>();
var command1 = new MockSucceedingCommand();
commands.Add(command1);
var failingCmd = new MockFailingCommand();
commands.Add(failingCmd);
var command2 = new MockUndoableCommand();
commands.Add(command2);
var runner = new CommandsRunner(commands);
var result = runner.Run();
Assert.IsFalse(result);
Assert.IsTrue(runner.WasCommandStarted(command1));
Assert.IsTrue(runner.WasCommandStarted(failingCmd));
Assert.IsFalse(runner.WasCommandStarted(command2));
}