function isValidCheck(value, options, callback) {
var checkName, checkModule, checkClass, index;
if (typeof(value) !== 'object') {
callback(new Error('Health check item, must be an object'));
return;
}
if (!value.hasOwnProperty('check')) {
callback(new Error('Missing "check" property'));
return;
}
checkName = value.check;
// Check for a valid check name
index = misc.arrayFind(checkName,
health.availableChecks,
null,
function(item, needle) {
return item[0] === needle;
});
if (index === false) {
callback(new Error(sprintf('Invalid check type: %s', checkName)));
return;
}
checkModule = require(sprintf('health/checks/%s', checkName));
checkClass = health.availableChecks[index][1];
// Create a check object which throws an exception if a required argument is missing
try {
var module = new checkModule[checkClass](value['arguments']);
}
catch (error) {
callback(error);
return;
}
callback();
}
exports['test_arrayFind'] = function() {
var haystack = [ 'item 1', 'item 2', 'item 3', 'item 4' ];
assert.equal(misc.arrayFind('item 2', haystack), 1);
assert.equal(misc.arrayFind('not in array', haystack), false);
};