public function testValidateMethod()
{
$violations = 0;
$executionContext = $this->getMockBuilder('\\Symfony\\Component\\Validator\\Context\\ExecutionContextInterface')->getMock();
$violationBuilder = $this->getMockBuilder('\\Symfony\\Component\\Validator\\Violation\\ConstraintViolationBuilderInterface')->getMock();
$violationBuilder->expects($this->any())->method('addViolation')->willReturnCallback(function () use(&$violations) {
$violations += 1;
});
$executionContext->expects($this->any())->method('buildViolation')->willReturn($violationBuilder);
$buyer = new Buyer();
$buyer->validate($executionContext);
$this->assertEquals(0, $violations);
$violations = 0;
$buyer->setEmail('t');
$buyer->validate($executionContext);
$this->assertEquals(1, $violations);
$violations = 0;
$buyer->setFirstName('t');
$buyer->validate($executionContext);
$this->assertEquals(1, $violations);
$violations = 0;
$buyer->setLastName('t');
$buyer->validate($executionContext);
$this->assertEquals(0, $violations);
}