/**
* Test that boolean() returns true if the value is boolean-like.
*/
public function testBoolean()
{
$this->assertTrue(Validate::boolean(true));
$this->assertTrue(Validate::boolean(false));
$this->assertTrue(Validate::boolean(0));
$this->assertTrue(Validate::boolean(1));
$this->assertTrue(Validate::boolean('yes'));
$this->assertTrue(Validate::boolean('off'));
$this->assertFalse(Validate::boolean(null));
$this->assertFalse(Validate::boolean(''));
$this->assertFalse(Validate::boolean(123));
$this->assertFalse(Validate::boolean('abc'));
}
