function expectDefault(prefName, defaultValue) {
  return expect({
    value: defaultValue,
    levelOfControl: 'controllable_by_this_extension'
  }, '`' + prefName + '` is expected to be the default, which is ' +
     defaultValue);
}
// Verifies that the preference has the expected default value.
Verifies that the preference has the expected default value.
Verifies that the preference has the expected default value .
function expectDefault(prefName, defaultValue) {
  return expect({
    value: defaultValue,
    levelOfControl: 'controllable_by_this_extension'
  }, '`' + prefName + '` is expected to be the default, which is ' +
     defaultValue);
}
function expectDefault ( prefName , defaultValue ) { return expect ( { value : defaultValue , levelOfControl : 'controllable_by_this_extension' } , '`' + prefName + '` is expected to be the default, which is ' + defaultValue ) ; }
Verifies that the preference has the expected default value.
Verifies that the preference has the expected default value .