it("patches a core class using substitutes", function () {
$mon = new Mon();
$patch = Monkey::patch('DateTime');
$patch->toBe(new DateTime('@123'), new DateTime('@456'));
expect($mon->datetime()->getTimestamp())->toBe(123);
expect($mon->datetime()->getTimestamp())->toBe(456);
});
it("patches a function", function () {
$mon = new Mon();
Monkey::patch('Kahlan\\Spec\\Fixture\\Plugin\\Monkey\\rand', 'Kahlan\\Spec\\Suite\\Plugin\\myrand');
expect($mon->rand(0, 100))->toBe(101);
});
it("patches a class", function () {
$mon = new Mon();
Monkey::patch('Kahlan\\Util\\Text', 'Kahlan\\Spec\\Mock\\Plugin\\Monkey\\MyString');
expect($mon->dump((object) 'hello'))->toBe('myhashvalue');
});
it("can unpatch a monkey patch", function () {
$mon = new Mon();
Monkey::patch('Kahlan\\Spec\\Fixture\\Plugin\\Monkey\\rand', 'Kahlan\\Spec\\Suite\\Plugin\\myrand');
expect($mon->rand(0, 100))->toBe(101);
Monkey::reset('Kahlan\\Spec\\Fixture\\Plugin\\Monkey\\rand');
expect($mon->rand(0, 100))->toBe(50);
});
it("throws an exception with trying to patch an unsupported functions or core langage statements", function () {
$closure = function () {
Monkey::patch('func_get_args', function () {
return [];
});
};
expect($closure)->toThrow(new Exception('Monkey patching `func_get_args()` is not supported by Kahlan.'));
