add static method

int add(
  1. FrameworkStabilizer fn
)

Add a stabilize function for a framework.

This function will be called whenever a test needs to wait for the framework to stabilize. When the framework is stable, it needs to call the IsStableCallback provided as an argument to the FrameworkStabilizer. Rules for calling the callback by the framework:

  • If a framework is already stable at the time of callback registration, the callback should be called in the next event loop iteration with the didWork parameter set to false.
  • Otherwise, the callback should be called as soon as the framework is stable with didWork set to true.
  • A registered callback should never be called more than once.

The id returned by add can be used to remove the FrameworkStabilizer with remove.

Implementation

static int add(FrameworkStabilizer fn) {
  var wrappedFn = allowInterop(fn);
  var id = _nextId++;
  _idToFrameworkStabilizer[id] = wrappedFn;
  _frameworkStabilizers.add(wrappedFn);
  return id;
}