OptionalconcurrencyOptionalonlyIf truthy, and the test context is configured to run only tests, then this test will be
run. Otherwise, the test is skipped.
OptionalplanThe number of assertions and subtests expected to be run in the test. If the number of assertions run in the test does not match the number specified in the plan, the test will fail.
OptionalsignalAllows aborting an in-progress test.
OptionalskipIf truthy, the test is skipped. If a string is provided, that string is displayed in the test results as the reason for skipping the test.
OptionaltimeoutA number of milliseconds the test will fail after. If unspecified, subtests inherit this value from their parent.
OptionaltodoIf truthy, the test marked as TODO. If a string is provided, that string is displayed in
the test results as the reason why the test is TODO.
If a number is provided, then that many tests would run in parallel. If truthy, it would run (number of cpu cores - 1) tests in parallel. For subtests, it will be
Infinitytests in parallel. If falsy, it would only run one test at a time. If unspecified, subtests inherit this value from their parent.