public function testPromptAllCanDeleteAll()
{
$this->dialog->expects($this->exactly(2))->method('askConfirmation')->will($this->onConsecutiveCalls(true, true));
$this->customerCollection->expects($this->exactly(3))->method('addAttributeToSelect')->will($this->returnValueMap(array(array('firstname', false, $this->customerCollection), array('lastname', false, $this->customerCollection), array('email', false, $this->customerCollection))));
$this->command->expects($this->once())->method('batchDelete')->with($this->customerCollection)->will($this->returnValue(3));
$application = $this->getApplication();
$application->add($this->command);
$command = $this->getApplication()->find('customer:delete');
$commandTester = new CommandTester($command);
$commandTester->execute(array('command' => $command->getName(), '--force' => true));
$this->assertContains('Successfully deleted 3 customer/s', $commandTester->getDisplay());
}