HackTest is a unit test runner and base class. Assertions are provided by separate libraries, such fbexpect.

php /path/to/composer.phar require --dev hhvm/hacktest facebook/fbexpect

To run tests:

vendor/bin/hacktest [OPTIONS] tests/

Tests are methods in classes, where:

• the class name matches the file name
• the class name ends with 'Test'
• the method is public
• the method name begins with 'test'

Test methods can be async, and will automatically be awaited.

Additionally, classes can implement several special methods:

• public static function beforeFirstTestAsync(): Awaitable<void>
• public static function afterLastTestAsync(): Awaitable<void>
• public function beforeEachTestAsync(): Awaitable<void>
• public function afterEachTestAsync(): Awaitable<void>

Finally, for data-driven tests, the <<DataProvider>> attribute can be used:

public function provideFoos(): vec<(string, int)> {
  return vec[
    tuple('foo', 123),
    tuple('bar', 456),
  ];
}

<<DataProvider('provideFoos')>>
public function testFoos(string $a, int $b): void {
  ....
}

$ vendor/bin/hacktest tests/clean/exit/

...

Summary: 3 test(s), 3 passed, 0 failed, 0 skipped, 0 error(s).

$ vendor/bin/hacktest tests/dirty/DirtyAsyncTest.php

FFF

1) DirtyAsyncTest::testWithNonNullableTypesAsync
Failed asserting that Array &0 (
    0 => 1
    1 => 'foo'
) is not identical to Array &0 (
    0 => 1
    1 => 'foo'
).

/fakepath/hacktest/tests/dirty/DirtyAsyncTest.php(22): Facebook\FBExpect\ExpectObj->toNotBeSame()
/fakepath/hacktest/src/Framework/HackTestCase.php(43): DirtyAsyncTest->testWithNonNullableTypesAsync()

2)...

Summary: 3 test(s), 0 passed, 3 failed, 0 skipped, 0 error(s).

For an example in verbose mode, see example.txt

See CONTRIBUTING.md.

The HackTest framework is MIT-licensed.