Make an assertion, error will be thrown if expr does not have truthy value.

Make an assertion that actual and expected are equal, deeply. If not deeply equal, then throw.

Make an assertion that obj is an instance of type. If not then throw.

Executes a function which returns a promise, expecting it to reject.

Make an assertion that actual matches a snapshot. If the snapshot and actual do not a match, then throw.

Asserts that a spy is called as much as expected and no more.

Make an assertion that actual and expected are strictly equal. If not then throw.

Executes a function, expecting it to throw. If it does not, then it throws.

Make the text bold.

Registers a test suite.

Expand the glob string from the specified root directory and yield each result as a WalkEntry object.

Registers an individual test case.

Set text color to red.

Wraps a function or instance method with a Spy.

Remove ANSI escape codes from the string.

Registers a test suite.

Registers an individual test case.