The MuxAsyncIterator class multiplexes multiple async iterators into a single stream. It currently makes an assumption:

• The final result (the value returned and not yielded from the iterator) does not matter; if there is any, it is discarded.

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

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

Executes a function which returns a promise, expecting it to throw or reject. If it does not, then it throws. An error class and a string that should be included in the error message can also be asserted. Or you can pass a callback which will be passed the error, usually to apply some custom assertions on it.

Executes a function, expecting it to throw. If it does not, then it throws. An error class and a string that should be included in the error message can also be asserted. Or you can pass a callback which will be passed the error, usually to apply some custom assertions on it.

Ensures that the directory exists. If the directory structure does not exist, it is created. Like mkdir -p. Requires the --allow-read and --allow-write flag.

Test whether or not the given path exists by checking with the file system

Remove ANSI escape codes from the string.