public void ThrowsArgumentNullExceptionForNullCommand()
{
var vm = new CompositeCommandViewModel();
var commandManager = new CommandManager();
ExceptionTester.CallMethodAndExpectException <ArgumentException>(() => commandManager.RegisterCommand("MyCommand", null));
}
public void ThrowsArgumentNullExceptionForWhitespaceCommandName()
{
var vm = new CompositeCommandViewModel();
var commandManager = new CommandManager();
ExceptionTester.CallMethodAndExpectException <ArgumentException>(() => commandManager.RegisterCommand(" ", vm.TestCommand1));
}
public void RegistersCommandForExecution()
{
var vm = new CompositeCommandViewModel();
var compositeCommand = new CompositeCommand();
compositeCommand.RegisterCommand(vm.TestCommand1, vm);
compositeCommand.Execute();
Assert.IsTrue(vm.IsTestCommand1Executed);
}
public void ExecutesRegisteredCommands()
{
var vm = new CompositeCommandViewModel();
var commandManager = new CommandManager();
commandManager.CreateCommand("MyCommand");
commandManager.RegisterCommand("MyCommand", vm.TestCommand1);
commandManager.ExecuteCommand("MyCommand");
Assert.IsTrue(vm.IsTestCommand1Executed);
}
public async Task AutomaticallyUnsubscribesCommandOnViewModelClosed()
{
var vm = new CompositeCommandViewModel();
var compositeCommand = new CompositeCommand();
compositeCommand.RegisterCommand(vm.TestCommand1, vm);
Assert.IsFalse(vm.IsTestCommand1Executed);
await vm.CloseViewModelAsync(false);
compositeCommand.Execute();
Assert.IsFalse(vm.IsTestCommand1Executed);
}
public void DoesNotExecuteUnregisteredCommands()
{
var vm = new CompositeCommandViewModel();
var commandManager = new CommandManager();
commandManager.CreateCommand("MyCommand");
commandManager.RegisterCommand("MyCommand", vm.TestCommand1);
Assert.IsTrue(commandManager.IsCommandCreated("MyCommand"));
commandManager.UnregisterCommand("MyCommand", vm.TestCommand1);
commandManager.ExecuteCommand("MyCommand");
Assert.IsFalse(vm.IsTestCommand1Executed);
}