public void WhenChangingProperty_ThenUpdatesCommand()
{
var someControl = new TextBox();
var oldCommand = new MockCommand();
var newCommand = new MockCommand();
var commandAction = new InvokeCommandAction();
commandAction.Attach(someControl);
commandAction.Command = oldCommand;
commandAction.Command = newCommand;
commandAction.Invoke();
Assert.IsTrue(newCommand.ExecuteCalled);
Assert.IsFalse(oldCommand.ExecuteCalled);
}
public void WhenAttachedAfterCommandPropertyIsSetAndInvoked_ThenInvokesCommand()
{
var someControl = new TextBox();
var commandAction = new InvokeCommandAction();
var command = new MockCommand();
commandAction.Command = command;
commandAction.Attach(someControl);
Assert.IsFalse(command.ExecuteCalled);
commandAction.Invoke();
Assert.IsTrue(command.ExecuteCalled);
Assert.AreSame(command, commandAction.GetValue(InvokeCommandAction.CommandProperty));
}
public void WhenChangingProperty_ThenUpdatesCommand()
{
var someControl = new TextBox();
var oldCommand = new MockCommand();
var newCommand = new MockCommand();
var commandAction = new InvokeCommandAction();
commandAction.Attach(someControl);
commandAction.Command = oldCommand;
commandAction.Command = newCommand;
commandAction.Invoke();
Assert.IsTrue(newCommand.ExecuteCalled);
Assert.IsFalse(oldCommand.ExecuteCalled);
}
public void WhenCommandPropertyIsSet_ThenHooksUpCommandBehavior()
{
var someControl = new TextBox();
var commandAction = new InvokeCommandAction();
var command = new MockCommand();
commandAction.Attach(someControl);
commandAction.Command = command;
Assert.IsFalse(command.ExecuteCalled);
commandAction.Invoke();
Assert.IsTrue(command.ExecuteCalled);
Assert.AreSame(command, commandAction.GetValue(InvokeCommandAction.CommandProperty));
}
public void WhenCommandAndCommandParameterAreSetPriorToBehaviorBeingAttached_ThenCommandIsExecutedCorrectlyOnInvoke()
{
var someControl = new TextBox();
var command = new MockCommand();
var parameter = new object();
var commandAction = new InvokeCommandAction();
commandAction.Command = command;
commandAction.CommandParameter = parameter;
commandAction.Attach(someControl);
commandAction.Invoke();
Assert.IsTrue(command.ExecuteCalled);
}
public void WhenAttachedAfterCommandPropertyIsSetAndInvoked_ThenInvokesCommand()
{
var someControl = new TextBox();
var commandAction = new InvokeCommandAction();
var command = new MockCommand();
commandAction.Command = command;
commandAction.Attach(someControl);
Assert.IsFalse(command.ExecuteCalled);
commandAction.Invoke();
Assert.IsTrue(command.ExecuteCalled);
Assert.AreSame(command, commandAction.GetValue(InvokeCommandAction.CommandProperty));
}
public void WhenCommandPropertyIsSet_ThenHooksUpCommandBehavior()
{
var someControl = new TextBox();
var commandAction = new InvokeCommandAction();
var command = new MockCommand();
commandAction.Attach(someControl);
commandAction.Command = command;
Assert.IsFalse(command.ExecuteCalled);
commandAction.Invoke();
Assert.IsTrue(command.ExecuteCalled);
Assert.AreSame(command, commandAction.GetValue(InvokeCommandAction.CommandProperty));
}
public void WhenInvokedWithCommandParameter_ThenPassesCommandParaeterToExecute()
{
var someControl = new TextBox();
var command = new MockCommand();
var parameter = new object();
var commandAction = new InvokeCommandAction();
commandAction.Attach(someControl);
commandAction.Command = command;
commandAction.CommandParameter = parameter;
Assert.IsNull(command.ExecuteParameter);
commandAction.Invoke();
Assert.IsTrue(command.ExecuteCalled);
Assert.IsNotNull(command.ExecuteParameter);
Assert.AreSame(parameter, command.ExecuteParameter);
}
public void WhenInvokedWithCommandParameter_ThenPassesCommandParaeterToExecute()
{
var someControl = new TextBox();
var command = new MockCommand();
var parameter = new object();
var commandAction = new InvokeCommandAction();
commandAction.Attach(someControl);
commandAction.Command = command;
commandAction.CommandParameter = parameter;
Assert.IsNull(command.ExecuteParameter);
commandAction.Invoke();
Assert.IsTrue(command.ExecuteCalled);
Assert.IsNotNull(command.ExecuteParameter);
Assert.AreSame(parameter, command.ExecuteParameter);
}
public void WhenCommandAndCommandParameterAreSetPriorToBehaviorBeingAttached_ThenCommandIsExecutedCorrectlyOnInvoke()
{
var someControl = new TextBox();
var command = new MockCommand();
var parameter = new object();
var commandAction = new InvokeCommandAction();
commandAction.Command = command;
commandAction.CommandParameter = parameter;
commandAction.Attach(someControl);
commandAction.Invoke();
Assert.IsTrue(command.ExecuteCalled);
}