public function testAssertations()
{
$t = new \Test\Exists();
$this->assertTrue($t->testClassExists('TestExClass'));
$this->assertFalse($t->testClassExists('TestExClassx'));
$this->assertFalse($t->testClassExists('TestExInterface'));
// with namespace
$this->assertTrue($t->testClassExists('\\Test\\Exists'));
$this->assertFalse($t->testInterfaceExists('TestExClass'));
// class not interface
$this->assertTrue($t->testInterfaceExists('TestExInterface'));
$this->assertFalse($t->testInterfaceExists('TestExInterfacex'));
$this->assertTrue($t->testMethodExists($t, 'testMethodExists'));
$this->assertTrue($t->testFileExists(__DIR__ . '/php/exists.php'));
$this->assertFalse($t->testFileExists(__DIR__ . '/php/existsxxxx.php'));
}